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From: Jia Liu <proljc@gmail.com>
To: qemu-devel@nongnu.org
Cc: sw@weilnetz.de, aurelien@aurel32.net
Subject: [Qemu-devel] [PATCH V2 2/4] add MIPS DSP helpers implement
Date: Thu, 22 Mar 2012 21:36:10 +0800	[thread overview]
Message-ID: <1332423372-2391-3-git-send-email-proljc@gmail.com> (raw)
In-Reply-To: <1332423372-2391-1-git-send-email-proljc@gmail.com>

This is the helper implementation of MIPS ASE DSP.

Signed-off-by: Jia Liu <proljc@gmail.com>
---

Version History:

V2:
- Addressed Stefan's review comments, coding style fixed.

V1:
- add MIPS ASE DSP helper implementation.

 target-mips/op_helper.c | 3936 +++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 3936 insertions(+), 0 deletions(-)

diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c
index 3a20731..cca1b1e 100644
--- a/target-mips/op_helper.c
+++ b/target-mips/op_helper.c
@@ -3409,3 +3409,3939 @@ FOP_COND_PS(le,  float32_le(fst0, fst1, &env->active_fpu.fp_status),
                  float32_le(fsth0, fsth1, &env->active_fpu.fp_status))
 FOP_COND_PS(ngt, float32_unordered(fst1, fst0, &env->active_fpu.fp_status)    || float32_le(fst0, fst1, &env->active_fpu.fp_status),
                  float32_unordered(fsth1, fsth0, &env->active_fpu.fp_status)  || float32_le(fsth0, fsth1, &env->active_fpu.fp_status))
+
+/* MIPS DSP functions begin */
+static inline void set_DSPControl_overflow_flag(uint32_t flag, int position)
+{
+    env->active_tc.DSPControl |= (target_ulong)flag << position;
+}
+
+static inline void set_DSPControl_carryflag(uint32_t flag)
+{
+    env->active_tc.DSPControl |= (target_ulong)flag << 13;
+}
+
+static inline uint32_t get_DSPControl_carryflag(void)
+{
+    uint32_t flag;
+
+    flag = (env->active_tc.DSPControl >> 13) & 0x01;
+
+    return flag;
+}
+
+static inline void set_DSPControl_24(uint32_t flag, int len)
+{
+    if (len == 2)
+        env->active_tc.DSPControl &= 0xFCFFFFFF;
+    else if (len == 4)
+        env->active_tc.DSPControl &= 0xF0FFFFFF;
+
+    env->active_tc.DSPControl |= (target_ulong)flag << 24;
+}
+
+static inline void set_DSPControl_pos(uint32_t pos)
+{
+    target_ulong dspc;
+
+    dspc = env->active_tc.DSPControl;
+    dspc = dspc & 0xFFFFFFC0;
+    dspc |= pos;
+    env->active_tc.DSPControl = dspc;
+}
+
+static inline uint32_t get_DSPControl_pos(void)
+{
+    target_ulong dspc;
+    uint32_t pos;
+
+    dspc = env->active_tc.DSPControl;
+    pos = dspc & 0x3F;
+
+    return pos;
+}
+
+static inline void set_DSPControl_efi(uint32_t flag)
+{
+    env->active_tc.DSPControl &= 0xFFFFBFFF;
+    env->active_tc.DSPControl |= (target_ulong)flag << 14;
+}
+
+/* get abs value */
+static inline int8_t mipsdsp_sat_abs_u8(uint8_t a)
+{
+    int8_t temp;
+    temp = a;
+
+    if (a == 0x80) {
+        set_DSPControl_overflow_flag(1, 20);
+        temp = 0x7f;
+    } else {
+        if ((a & 0x80) == 0x80)
+            temp = -temp;
+    }
+
+    return temp;
+}
+
+static inline int16_t mipsdsp_sat_abs_u16(uint16_t a)
+{
+    int16_t temp;
+    temp = a;
+
+    if (a == 0x8000) {
+        set_DSPControl_overflow_flag(1, 20);
+        temp = 0x7fff;
+    } else {
+        if ((a & 0x8000) == 0x8000)
+            temp = -temp;
+    }
+
+    return temp;
+}
+
+static inline int32_t mipsdsp_sat_abs_u32(uint32_t a)
+{
+    int32_t temp;
+    temp = a;
+
+    if (a == 0x80000000) {
+        set_DSPControl_overflow_flag(1, 20);
+        temp = 0x7FFFFFFF;
+    } else {
+        if ((a & 0x80000000) == 0x80000000)
+            temp = -temp;
+    }
+
+    return temp;
+}
+
+/* get sum value */
+static inline int16_t mipsdsp_add_i16(int16_t a, int16_t b)
+{
+    int16_t tempS;
+    int32_t tempI, temp15, temp16;
+
+    tempS = a + b;
+    tempI = a + b;
+    temp15 = (tempI & 0x8000) >> 15;
+    temp16 = (tempI & 0x10000) >> 16;
+
+    if (temp15 != temp16)
+        set_DSPControl_overflow_flag(1, 20);
+
+    return tempS;
+}
+
+static inline int16_t mipsdsp_sat_add_i16(int16_t a, int16_t b)
+{
+    int16_t tempS;
+    int32_t tempI, temp15, temp16;
+
+    tempS = a + b;
+    tempI = (int32_t)a + (int32_t)b;
+    temp15 = (tempI & 0x8000) >> 15;
+    temp16 = (tempI & 0x10000) >> 16;
+
+    if (temp15 != temp16) {
+        if (temp16 == 0)
+            tempS = 0x7FFF;
+        else
+            tempS = 0x8000;
+        set_DSPControl_overflow_flag(1, 20);
+    }
+
+    return tempS;
+}
+
+static inline int32_t mipsdsp_sat_add_i32(int32_t a, int32_t b)
+{
+    int32_t tempI;
+    int64_t tempL, temp31, temp32;
+
+    tempI = a + b;
+    tempL = (int64_t)a + (int64_t)b;
+    temp31 = (tempL & 0x80000000) >> 31;
+    temp32 = (tempL & 0x100000000) >> 32;
+
+    if (temp31 != temp32) {
+        if (temp32 == 0)
+            tempI = 0x7FFFFFFF;
+        else
+            tempI = 0x80000000;
+        set_DSPControl_overflow_flag(1, 20);
+    }
+
+    return tempI;
+}
+
+static inline uint8_t mipsdsp_add_u8(uint8_t a, uint8_t b)
+{
+    uint8_t  result;
+    uint16_t tempA, tempB, temp;
+
+    tempA = a;
+    tempB = b;
+    temp = tempA + tempB;
+    result = temp & 0xFF;
+
+    if ((temp & 0x0100) == 0x0100)
+        set_DSPControl_overflow_flag(1, 20);
+
+    return result;
+}
+
+static inline uint16_t mipsdsp_add_u16(uint16_t a, uint16_t b)
+{
+    uint16_t result;
+    uint32_t tempA, tempB, temp;
+
+    tempA = a;
+    tempB = b;
+    temp = tempA + tempB;
+    result = temp & 0xFFFF;
+
+    if ((temp & 0x00010000) == 0x00010000)
+        set_DSPControl_overflow_flag(1, 20);
+
+    return result;
+}
+
+static inline uint8_t mipsdsp_sat_add_u8(uint8_t a, uint8_t b)
+{
+    uint8_t  result;
+    uint16_t tempA, tempB, temp;
+
+    tempA = a;
+    tempB = b;
+    temp = tempA + tempB;
+    result = temp & 0xFF;
+
+    if ((0x0100 & temp) == 0x0100) {
+        result = 0xFF;
+        set_DSPControl_overflow_flag(1, 20);
+    }
+
+    return result;
+}
+
+static inline uint16_t mipsdsp_sat_add_u16(uint16_t a, uint16_t b)
+{
+    uint16_t result;
+    uint32_t tempA, tempB, temp;
+
+    tempA = a;
+    tempB = b;
+    temp = tempA + tempB;
+    result = temp & 0xFFFF;
+
+    if ((0x00010000 & temp) == 0x00010000) {
+        result = 0xFFFF;
+        set_DSPControl_overflow_flag(1, 20);
+    }
+
+    return result;
+}
+
+static inline int32_t mipsdsp_sat32_acc_q31(int32_t acc, int32_t a)
+{
+    int64_t tempA, temp;
+    int32_t temp32, temp31, result;
+
+    temp = ((int64_t)env->active_tc.HI[acc] << 32) | \
+           ((int64_t)env->active_tc.LO[acc] & 0x00000000FFFFFFFF);
+    tempA = a;
+    temp += tempA;
+    temp32 = (temp >> 32) & 0x01;
+    temp31 = (temp >> 31) & 0x01;
+    result = temp & 0xFFFFFFFF;
+
+    if (temp32 != temp31) {
+        if (temp32 == 0)
+            result = 0x80000000;
+        else
+            result = 0x7FFFFFFF;
+        set_DSPControl_overflow_flag(1, 16 + acc);
+    }
+
+    return result;
+}
+
+static inline int32_t mipsdsp_mul_i16_i16(int16_t a, int16_t b)
+{
+    int32_t temp, tempA, tempB;
+
+    tempA = a;
+    tempB = b;
+    temp = tempA * tempB;
+
+    if ((temp > 0x7FFF) || (temp < 0xFFFF8000))
+        set_DSPControl_overflow_flag(1, 21);
+    temp &= 0x0000FFFF;
+
+    return temp;
+}
+
+static inline int32_t mipsdsp_sat16_mul_i16_i16(int16_t a, int16_t b)
+{
+    int32_t temp, tempA, tempB;
+
+    tempA = a;
+    tempB = b;
+    temp = tempA * tempB;
+
+    if (temp > 0x7FFF) {
+        temp = 0x00007FFF;
+        set_DSPControl_overflow_flag(1, 21);
+    } else if (temp < 0x00007FFF) {
+        temp = 0xFFFF8000;
+        set_DSPControl_overflow_flag(1, 21);
+    }
+    temp &= 0x0000FFFF;
+
+    return temp;
+}
+
+static inline int32_t mipsdsp_mul_q15_q15_overflowflag21(uint16_t a, uint16_t b)
+{
+    int16_t tempA, tempB;
+    int32_t temp;
+
+    tempA = a;
+    tempB = b;
+
+    if ((a == 0x8000) && (b == 0x8000)) {
+        temp = 0x7FFFFFFF;
+        set_DSPControl_overflow_flag(1, 21);
+    } else
+        temp = ((int32_t)tempA * (int32_t)tempB) << 1;
+
+    return temp;
+}
+
+/* right shift */
+static inline int16_t mipsdsp_rshift1_add_q16(int16_t a, int16_t b)
+{
+    int32_t temp, tempA, tempB;
+    int16_t result;
+
+    tempA = a;
+    tempB = b;
+    temp = tempA + tempB;
+    result = (temp >> 1) & 0xFFFF;
+
+    return result;
+}
+
+/* round right shift */
+static inline int16_t mipsdsp_rrshift1_add_q16(int16_t a, int16_t b)
+{
+    int32_t temp, tempA, tempB;
+    int16_t result;
+
+    tempA = a;
+    tempB = b;
+    temp = tempA + tempB;
+    temp += 1;
+    result = (temp >> 1) & 0xFFFF;
+
+    return result;
+}
+
+static inline int32_t mipsdsp_rshift1_add_q32(int32_t a, int32_t b)
+{
+    int64_t temp, tempA, tempB;
+    int32_t result;
+
+    tempA = a;
+    tempB = b;
+    temp = tempA + tempB;
+    result = (temp >> 1) & 0xFFFFFFFF;
+
+    return result;
+}
+
+static inline int32_t mipsdsp_rrshift1_add_q32(int32_t a, int32_t b)
+{
+    int64_t temp, tempA, tempB;
+    int32_t result;
+    tempA = a;
+    tempB = b;
+
+    temp = tempA + tempB;
+    temp += 1;
+    result = (temp >> 1) & 0xFFFFFFFF;
+
+    return result;
+}
+
+static inline uint8_t mipsdsp_rshift1_add_u8(uint8_t a, uint8_t b)
+{
+    uint16_t tempA, tempB, temp;
+    uint8_t  result;
+
+    tempA = a;
+    tempB = b;
+    temp = tempA + tempB;
+    result = (temp >> 1) & 0x00FF;
+
+    return result;
+}
+
+static inline uint8_t mipsdsp_rrshift1_add_u8(uint8_t a, uint8_t b)
+{
+    uint16_t tempA, tempB, temp;
+    uint8_t  result;
+
+    tempA = a;
+    tempB = b;
+    temp = tempA + tempB + 1;
+    result = (temp >> 1) & 0x00FF;
+
+    return result;
+}
+
+static inline int64_t mipsdsp_rashift_short_acc(int32_t ac,
+                                                int32_t shift)
+{
+    int32_t sign, temp31;
+    int64_t temp, acc;
+
+    sign = (env->active_tc.HI[ac] >> 31) & 0x01;
+    acc = ((int64_t)env->active_tc.HI[ac] << 32) | \
+          ((int64_t)env->active_tc.LO[ac] & 0xFFFFFFFF);
+    if (shift == 0)
+        temp = acc;
+    else {
+        if (sign == 0)
+            temp = (((int64_t)0x01 << (32 - shift + 1)) - 1) & (acc >> shift);
+        else
+            temp = ((((int64_t)0x01 << (shift + 1)) - 1) << (32 - shift)) | \
+                   (acc >> shift);
+    }
+
+    temp31 = (temp >> 31) & 0x01;
+    if (sign != temp31)
+        set_DSPControl_overflow_flag(1, 23);
+
+    return temp;
+}
+
+/*  128 bits long. p[0] is LO, p[1] is HI. */
+static inline void mipsdsp__rashift_short_acc(int64_t *p,
+                                              int32_t ac,
+                                              int32_t shift)
+{
+    int64_t acc;
+
+    acc = ((int64_t)env->active_tc.HI[ac] << 32) | \
+          ((int64_t)env->active_tc.LO[ac] & 0xFFFFFFFF);
+    if (shift == 0) {
+        p[0] = acc << 1;
+        p[1] = (acc >> 63) & 0x01;
+    } else {
+        p[0] = acc >> (shift - 1);
+        p[1] = 0;
+    }
+}
+
+static inline int32_t mipsdsp_mul_q15_q15(int32_t ac, uint16_t a, uint16_t b)
+{
+    uint16_t tempA, tempB;
+    int32_t temp;
+
+    tempA = a;
+    tempB = b;
+
+    if ((a == 0x8000) && (b == 0x8000)) {
+        temp = 0x7FFFFFFF;
+        set_DSPControl_overflow_flag(1, 16 + ac);
+    } else
+        temp = ((uint32_t)tempA * (uint32_t)tempB) << 1;
+
+    return temp;
+}
+
+static inline int64_t mipsdsp_mul_q31_q31(int32_t ac, uint32_t a, uint32_t b)
+{
+    uint32_t tempA, tempB;
+    uint64_t temp;
+
+    tempA = a;
+    tempB = b;
+
+    if ((a == 0x80000000) && (b == 0x80000000)) {
+        temp = 0x7FFFFFFFFFFFFFFF;
+        set_DSPControl_overflow_flag(1, 16 + ac);
+    } else
+        temp = ((uint64_t)tempA * (uint64_t)tempB) << 1;
+
+    return temp;
+}
+
+static inline uint16_t mipsdsp_mul_u8_u8(uint8_t a, uint8_t b)
+{
+    uint16_t temp;
+    temp = (uint16_t)a * (uint16_t)b;
+
+    return temp;
+}
+
+static inline uint16_t mipsdsp_mul_u8_u16(uint8_t a, uint16_t b)
+{
+    uint16_t tempS;
+    uint32_t tempI, tempA, tempB;
+
+    tempA = a;
+    tempB = b;
+    tempI = tempA * tempB;
+    if (tempI > 0x00) {
+        tempI = 0x0000FFFF;
+        set_DSPControl_overflow_flag(1, 21);
+    }
+    tempS = tempI & 0x0000FFFF;
+    return tempS;
+}
+
+static inline int16_t mipsdsp_rndq15_mul_q15_q15(uint16_t a, uint16_t b)
+{
+    int16_t result, tempA, tempB;
+    int32_t temp;
+
+    tempA = a;
+    tempB = b;
+
+    if ((a == 0x8000) && (b == 0x8000)) {
+        temp = 0x7FFF0000;
+        set_DSPControl_overflow_flag(1, 21);
+    } else {
+        temp = ((int32_t)tempA * (int32_t)tempB) << 1;
+        temp = temp + 0x00008000;
+    }
+    result = (temp & 0xFFFF0000) >> 16;
+
+    return result;
+}
+
+static inline int32_t mipsdsp_sat16_mul_q15_q15(uint16_t a, uint16_t b)
+{
+    int16_t tempA, tempB;
+    int32_t temp;
+
+    tempA = a;
+    tempB = b;
+
+    if ((a == 0x8000) && (b == 0x8000)) {
+        temp = 0x7FFF0000;
+        set_DSPControl_overflow_flag(1, 21);
+    } else {
+        temp = ((uint32_t)tempA * (uint32_t)tempB);
+        temp = temp << 1;
+    }
+    temp = (temp >> 16) & 0x0000FFFF;
+
+    return temp;
+}
+
+static inline uint16_t mipsdsp_trunc16_sat16_round(uint32_t a)
+{
+    uint16_t result;
+    uint32_t temp32, temp31;
+    int64_t temp;
+
+    temp = (int32_t)a + 0x00008000;
+    temp32 = (temp >> 32) & 0x01;
+    temp31 = (temp >> 31) & 0x01;
+
+    if (temp32 != temp31) {
+        temp = 0x7FFFFFFF;
+        set_DSPControl_overflow_flag(1, 22);
+    }
+    result = (temp >> 16) & 0xFFFF;
+
+    return result;
+}
+
+static inline uint8_t mipsdsp_sat8_reduce_precision(uint16_t a)
+{
+    uint8_t  result;
+    uint16_t mag;
+    uint32_t sign;
+
+    sign = (a >> 15) & 0x01;
+    mag = a & 0x7FFF;
+
+    if (sign == 0) {
+        if (mag > 0x7F80) {
+            result = 0xFF;
+            set_DSPControl_overflow_flag(1, 22);
+        } else
+            result = (mag >> 7) & 0xFFFF;
+    } else {
+        result = 0x00;
+        set_DSPControl_overflow_flag(1, 22);
+    }
+
+    return result;
+}
+
+static inline uint8_t mipsdsp_lshift8(uint8_t a, uint8_t s)
+{
+    uint8_t sign;
+    uint8_t temp, discard;
+
+    if (s == 0)
+        temp = a;
+    else {
+        sign = (a >> 7) & 0x01;
+        temp = a << s;
+        if (sign != 0)
+            discard = (((0x01 << (8 - s)) - 1) << s) | \
+                      ((a >> (6 - (s - 1))) & ((0x01 << s) - 1));
+        else
+            discard = a >> (6 - (s - 1));
+
+        if (discard != 0x00)
+            set_DSPControl_overflow_flag(1, 22);
+    }
+
+    return temp;
+}
+
+static inline uint8_t mipsdsp_rshift8(uint8_t a, uint8_t s)
+{
+    uint8_t temp;
+    if (s == 0)
+        temp = a;
+    else
+        temp = a >> s;
+    return temp;
+}
+
+static inline uint16_t mipsdsp_lshift16(uint16_t a, uint8_t s)
+{
+    uint8_t  sign;
+    uint16_t temp, discard;
+
+    if (s == 0)
+        temp = a;
+    else {
+        sign = (a >> 15) & 0x01;
+        temp = a << s;
+        if (sign != 0)
+            discard = (((0x01 << (16 - s)) - 1) << s) | \
+                      ((a >> (14 - (s - 1))) & ((0x01 << s) - 1));
+        else
+            discard = a >> (14 - (s - 1));
+
+        if ((discard != 0x0000) && (discard != 0xFFFF))
+            set_DSPControl_overflow_flag(1, 22);
+    }
+
+    return temp;
+}
+
+static inline uint16_t mipsdsp_sat16_lshift(uint16_t a, uint8_t s)
+{
+    uint8_t  sign;
+    uint16_t temp, discard;
+
+    if (s == 0)
+        temp = a;
+    else {
+        sign = (a >> 15) & 0x01;
+        temp = a << s;
+        if (sign != 0)
+            discard = (((0x01 << (16 - s)) - 1) << s) | \
+                      ((a >> (14 - (s - 1))) & ((0x01 << s) - 1));
+        else
+            discard = a >> (14 - (s - 1));
+        if ((discard != 0x0000) && (discard != 0xFFFF)) {
+            temp = (sign == 0) ? 0x7FFF : 0x8000;
+            set_DSPControl_overflow_flag(1, 22);
+        }
+    }
+
+    return temp;
+}
+
+static inline uint32_t mipsdsp_sat32_lshift(uint32_t a, uint8_t s)
+{
+    uint8_t  sign;
+    uint32_t temp, discard;
+
+    if (s == 0)
+        temp = a;
+    else {
+        sign = (a >> 31) & 0x01;
+        temp = a << s;
+        if (sign != 0)
+            discard = (((0x01 << (32 - s)) - 1) << s) | \
+                      ((a >> (30 - (s - 1))) & ((0x01 << s) - 1));
+        else
+            discard = a >> (30 - (s - 1));
+        if ((discard != 0x00000000) && (discard != 0xFFFFFFFF)) {
+            temp = (sign == 0) ? 0x7FFFFFFF : 0x80000000;
+            set_DSPControl_overflow_flag(1, 22);
+        }
+    }
+
+    return temp;
+}
+
+static inline uint16_t mipsdsp_rashift16(uint16_t a, uint8_t s)
+{
+    int16_t i, temp;
+
+    i = a;
+    if (s == 0)
+        temp = a;
+    else
+        temp = i >> s;
+
+    return temp;
+}
+
+static inline uint16_t mipsdsp_rnd16_rashift(uint16_t a, uint8_t s)
+{
+    int16_t  i, result;
+    uint32_t temp;
+
+    i = a;
+    if (s == 0)
+        temp = (uint32_t)a << 1;
+    else
+        temp = (int32_t)i >> (s - 1);
+    temp   = temp + 1;
+    result = temp >> 1;
+
+    return result;
+}
+
+static inline uint32_t mipsdsp_rnd32_rashift(uint32_t a, uint8_t s)
+{
+    int32_t i;
+    int64_t temp;
+    uint32_t result;
+
+    i = a;
+    if (s == 0)
+        temp = a << 1;
+    else
+        temp = (int64_t)i >> (s - 1);
+    temp += 1;
+    result = (temp >> 1) & 0x00000000FFFFFFFF;
+
+    return result;
+}
+
+static inline uint16_t mipsdsp_sub_i16(int16_t a, int16_t b)
+{
+    uint8_t  temp16, temp15;
+    uint16_t result;
+    int32_t  temp;
+
+    temp = (int32_t)a - (int32_t)b;
+    temp16 = (temp >> 16) & 0x01;
+    temp15 = (temp >> 15) & 0x01;
+    if (temp16 != temp15)
+        set_DSPControl_overflow_flag(1, 20);
+    result = temp & 0x0000FFFF;
+
+    return result;
+}
+
+static inline uint16_t mipsdsp_sat16_sub(int16_t a, int16_t b)
+{
+    uint8_t  temp16, temp15;
+    uint16_t result;
+    int32_t  temp;
+
+    temp = (int32_t)a - (int32_t)b;
+    temp16 = (temp >> 16) & 0x01;
+    temp15 = (temp >> 15) & 0x01;
+    if (temp16 != temp15) {
+        if (temp16 == 0)
+            temp = 0x7FFF;
+        else
+            temp = 0x8000;
+        set_DSPControl_overflow_flag(1, 20);
+    }
+    result = temp & 0x0000FFFF;
+
+    return result;
+}
+
+static inline uint32_t mipsdsp_sat32_sub(int32_t a, int32_t b)
+{
+    uint8_t  temp32, temp31;
+    uint32_t result;
+    int64_t  temp;
+
+    temp = (int64_t)a - (int64_t)b;
+    temp32 = (temp >> 32) & 0x01;
+    temp31 = (temp >> 31) & 0x01;
+    if (temp32 != temp31) {
+        if (temp32 == 0)
+            temp = 0x7FFFFFFF;
+        else
+            temp = 0x80000000;
+        set_DSPControl_overflow_flag(1, 20);
+    }
+    result = temp & 0x00000000FFFFFFFF;
+
+    return result;
+}
+
+static inline uint16_t mipsdsp_rshift1_sub_q16(int16_t a, int16_t b)
+{
+    int32_t  temp;
+    uint16_t result;
+
+    temp = (int32_t)a - (int32_t)b;
+    result = (temp >> 1) & 0x0000FFFF;
+
+    return result;
+}
+
+static inline uint16_t mipsdsp_rrshift1_sub_q16(int16_t a, int16_t b)
+{
+    int32_t  temp;
+    uint16_t result;
+
+    temp = (int32_t)a - (int32_t)b;
+    temp += 1;
+    result = (temp >> 1) & 0x0000FFFF;
+
+    return result;
+}
+
+static inline uint32_t mipsdsp_rshift1_sub_q32(int32_t a, int32_t b)
+{
+    int64_t  temp;
+    uint32_t result;
+
+    temp   = (int64_t)a - (int64_t)b;
+    result = (temp >> 1) & 0x00000000FFFFFFFF;
+
+    return result;
+}
+
+static inline uint32_t mipsdsp_rrshift1_sub_q32(int32_t a, int32_t b)
+{
+    int64_t  temp;
+    uint32_t result;
+
+    temp = (int64_t)a - (int64_t)b;
+    temp += 1;
+    result = (temp >> 1) & 0x00000000FFFFFFFF;
+
+    return result;
+}
+
+static inline uint16_t mipsdsp_sub_u16_u16(uint16_t a, uint16_t b)
+{
+    uint8_t  temp16;
+    uint16_t result;
+    uint32_t temp;
+
+    temp = (uint32_t)a - (uint32_t)b;
+    temp16 = (temp >> 16) & 0x01;
+    if (temp16 == 1)
+        set_DSPControl_overflow_flag(1, 20);
+    result = temp & 0x0000FFFF;
+    return result;
+}
+
+static inline uint16_t mipsdsp_satu16_sub_u16_u16(uint16_t a, uint16_t b)
+{
+    uint8_t  temp16;
+    uint16_t result;
+    uint32_t temp;
+
+    temp   = (uint32_t)a - (uint32_t)b;
+    temp16 = (temp >> 16) & 0x01;
+
+    if (temp16 == 1) {
+        temp = 0x0000;
+        set_DSPControl_overflow_flag(1, 20);
+    }
+    result = temp & 0x0000FFFF;
+
+    return result;
+}
+
+static inline uint8_t mipsdsp_sub_u8(uint8_t a, uint8_t b)
+{
+    uint8_t  result, temp8;
+    uint16_t temp;
+
+    temp = (uint16_t)a - (uint16_t)b;
+    temp8 = (temp >> 8) & 0x01;
+    if (temp8 == 0)
+        set_DSPControl_overflow_flag(1, 20);
+    result = temp & 0x00FF;
+
+    return result;
+}
+
+static inline uint8_t mipsdsp_satu8_sub(uint8_t a, uint8_t b)
+{
+    uint8_t  result, temp8;
+    uint16_t temp;
+
+    temp = (uint16_t)a - (uint16_t)b;
+    temp8 = (temp >> 8) & 0x01;
+    if (temp8 == 1) {
+        temp = 0x00;
+        set_DSPControl_overflow_flag(1, 20);
+    }
+    result = temp & 0x00FF;
+
+    return result;
+}
+/* MIPS DSP functions end */
+
+#define MIPSDSP_LHI 0xFFFFFFFF00000000
+#define MIPSDSP_LLO 0x00000000FFFFFFFF
+#define MIPSDSP_HI  0xFFFF0000
+#define MIPSDSP_LO  0x0000FFFF
+#define MIPSDSP_Q3  0xFF000000
+#define MIPSDSP_Q2  0x00FF0000
+#define MIPSDSP_Q1  0x0000FF00
+#define MIPSDSP_Q0  0x000000FF
+
+/* MIPS DSP */
+uint32_t helper_absqsph(uint32_t rt)
+{
+    uint32_t rd;
+    int16_t tempA, tempB;
+
+    tempA = (rt & MIPSDSP_HI) >> 16;
+    tempB =  rt & MIPSDSP_LO;
+
+    rd = ((uint32_t)mipsdsp_sat_abs_u16 (tempA) << 16) | \
+         ((uint32_t)(mipsdsp_sat_abs_u16 (tempB)) & 0xFFFF);
+
+    return rd;
+}
+
+uint32_t helper_absqsw(uint32_t rt)
+{
+    uint32_t rd;
+    int32_t temp;
+
+    temp = rt;
+    rd = mipsdsp_sat_abs_u32(temp);
+
+    return rd;
+}
+
+uint32_t helper_addqph(uint32_t rs, uint32_t rt)
+{
+    int16_t  rsh, rsl, rth, rtl, temph, templ;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    temph = mipsdsp_add_i16(rsh, rth);
+    templ = mipsdsp_add_i16(rsl, rtl);
+    rd = ((unsigned int)temph << 16) | ((unsigned int)templ & 0xFFFF);
+
+    return rd;
+}
+
+uint32_t helper_addqsph(uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rsl, rth, rtl, temph, templ;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    temph = mipsdsp_sat_add_i16(rsh, rth);
+    templ = mipsdsp_sat_add_i16(rsl, rtl);
+    rd = ((uint32_t)temph << 16) | ((uint32_t)templ & 0xFFFF);
+
+    return rd;
+}
+
+uint32_t helper_addqsw(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    rd = mipsdsp_sat_add_i32(rs, rt);
+    return rd;
+}
+
+uint32_t helper_addsc(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    uint64_t temp, tempRs, tempRt;
+    int32_t flag;
+
+    tempRs = (uint64_t)rs & MIPSDSP_LLO;
+    tempRt = (uint64_t)rt & MIPSDSP_LLO;
+
+    temp = tempRs + tempRt;
+    flag = (temp & 0x0100000000) >> 32;
+    set_DSPControl_carryflag(flag);
+    rd = temp & MIPSDSP_LLO;
+
+    return rd;
+}
+
+uint32_t helper_addwc(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    int32_t temp32, temp31;
+    int64_t rsL, rtL, tempL;
+
+    rsL = (int32_t)rs;
+    rtL = (int32_t)rt;
+    tempL = rsL + rtL + get_DSPControl_carryflag();
+    temp31 = (tempL >> 31) & 0x01;
+    temp32 = (tempL >> 32) & 0x01;
+
+    if (temp31 != temp32)
+        set_DSPControl_overflow_flag(1, 20);
+
+    rd = tempL & MIPSDSP_LLO;
+
+    return rd;
+}
+
+uint32_t helper_bitrev(uint32_t rt)
+{
+    int32_t temp;
+    uint32_t rd;
+
+    temp = rt & MIPSDSP_LO;
+    rd = temp;
+
+    return rd;
+}
+
+void helper_cmpeqph(uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rsl, rth, rtl;
+    int32_t flag;
+    int32_t ccA = 0, ccB = 0;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    if (rsh == rth)
+        ccB = 1;
+    if (rsl == rtl)
+        ccA = 1;
+    flag = (ccB << 1) | ccA;
+    set_DSPControl_24(flag, 2);
+}
+
+void helper_cmpltph(uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rsl, rth, rtl;
+    int32_t flag;
+    int32_t ccA = 0, ccB = 0;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    if (rsh < rth)
+        ccB = 1;
+
+    if (rsl < rtl)
+        ccA = 1;
+
+    flag = (ccB << 1) | ccA;
+    set_DSPControl_24(flag, 2);
+}
+
+void helper_cmpleph(uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rsl, rth, rtl;
+    int32_t flag;
+    int32_t ccA = 0, ccB = 0;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    if (rsh <= rth)
+        ccB = 1;
+
+    if (rsl <= rtl)
+        ccA = 1;
+
+    flag = (ccB << 1) | ccA;
+    set_DSPControl_24(flag, 2);
+}
+
+uint32_t helper_cmpgueqqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs3, rs2, rs1, rs0;
+    uint8_t rt3, rt2, rt1, rt0;
+    uint8_t cc3 = 0, cc2 = 0, cc1 = 0, cc0 = 0;
+    uint32_t temp;
+    uint32_t rd;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs1 = (rs & MIPSDSP_Q1) >> 8;
+    rs0 =  rs & MIPSDSP_Q0;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >> 8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    if (rs3 == rt3)
+        cc3 = 1;
+
+    if (rs2 == rt2)
+        cc2 = 1;
+
+    if (rs1 == rt1)
+        cc1 = 1;
+
+    if (rs0 == rt0)
+        cc0 = 1;
+
+    temp = (cc3 << 3) | (cc2 << 2) | (cc1 << 1) | cc0;
+    rd = temp;
+
+    return rd;
+}
+
+uint32_t helper_cmpgultqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs3, rs2, rs1, rs0;
+    uint8_t rt3, rt2, rt1, rt0;
+    uint32_t cc3 = 0, cc2 = 0, cc1 = 0, cc0 = 0;
+    uint32_t temp;
+    uint32_t rd;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs1 = (rs & MIPSDSP_Q1) >> 8;
+    rs0 =  rs & MIPSDSP_Q0;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >> 8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    if (rs3 < rt3)
+        cc3 = 1;
+
+    if (rs2 < rt2)
+        cc2 = 1;
+
+    if (rs1 < rt1)
+        cc1 = 1;
+
+    if (rs0 < rt0)
+        cc0 = 1;
+
+    temp = (cc3 << 3) | (cc2 << 2) | (cc1 << 1) | cc0;
+    rd = temp;
+
+    return rd;
+}
+
+uint32_t helper_cmpguleqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs3, rs2, rs1, rs0;
+    uint8_t rt3, rt2, rt1, rt0;
+    uint32_t cc3 = 0, cc2 = 0, cc1 = 0, cc0 = 0;
+    uint32_t temp;
+    uint32_t rd;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs1 = (rs & MIPSDSP_Q1) >> 8;
+    rs0 =  rs & MIPSDSP_Q0;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >> 8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    if (rs3 <= rt3)
+        cc3 = 1;
+
+    if (rs2 <= rt2)
+        cc2 = 1;
+
+    if (rs1 <= rt1)
+        cc1 = 1;
+
+    if (rs0 <= rt0)
+        cc0 = 1;
+
+    temp = (cc3 << 3) | (cc2 << 2) | (cc1 << 1) | cc0;
+    rd = temp;
+
+    return rd;
+}
+
+void helper_cmpueqqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs3, rs2, rs1, rs0;
+    uint8_t rt3, rt2, rt1, rt0;
+    uint32_t cc3 = 0, cc2 = 0, cc1 = 0, cc0 = 0;
+    uint32_t flag;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs1 = (rs & MIPSDSP_Q1) >> 8;
+    rs0 =  rs & MIPSDSP_Q0;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >> 8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    if (rs3 == rt3)
+        cc3 = 1;
+
+    if (rs2 == rt2)
+        cc2 = 1;
+
+    if (rs1 == rt1)
+        cc1 = 1;
+
+    if (rs0 == rt0)
+        cc0 = 1;
+
+    flag = (cc3 << 3) | (cc2 << 2) | (cc1 << 1) | cc0;
+    set_DSPControl_24(flag, 4);
+}
+
+void helper_cmpultqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs3, rs2, rs1, rs0;
+    uint8_t rt3, rt2, rt1, rt0;
+    uint32_t cc3 = 0, cc2 = 0, cc1 = 0, cc0 = 0;
+    uint32_t flag;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs1 = (rs & MIPSDSP_Q1) >> 8;
+    rs0 =  rs & MIPSDSP_Q0;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >> 8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    if (rs3 < rt3)
+        cc3 = 1;
+
+    if (rs2 < rt2)
+        cc2 = 1;
+
+    if (rs1 < rt1)
+        cc1 = 1;
+
+    if (rs0 < rt0)
+        cc0 = 1;
+
+    flag = (cc3 << 3) | (cc2 << 2) | (cc1 << 1) | cc0;
+    set_DSPControl_24(flag, 4);
+}
+
+void helper_cmpuleqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs3, rs2, rs1, rs0;
+    uint8_t rt3, rt2, rt1, rt0;
+    uint32_t cc3 = 0, cc2 = 0, cc1 = 0, cc0 = 0;
+    uint32_t flag;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs1 = (rs & MIPSDSP_Q1) >> 8;
+    rs0 =  rs & MIPSDSP_Q0;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >> 8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    if (rs3 <= rt3)
+        cc3 = 1;
+
+    if (rs2 <= rt2)
+        cc2 = 1;
+
+    if (rs1 <= rt1)
+        cc1 = 1;
+
+    if (rs0 <= rt0)
+        cc0 = 1;
+
+    flag = (cc3 << 3) | (cc2 << 2) | (cc1 << 1) | cc0;
+    set_DSPControl_24(flag, 4);
+}
+
+void helper_dpaqswph(int ac, uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rsl, rth, rtl;
+    int32_t tempB, tempA;
+    int64_t acc, dotp, tempBL, tempAL;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = mipsdsp_mul_q15_q15(ac, rsh, rth);
+    tempA = mipsdsp_mul_q15_q15(ac, rsl, rtl);
+    tempBL = tempB;
+    tempAL = tempA;
+    dotp = tempBL + tempAL;
+    acc = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+          ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    acc += dotp;
+
+    env->active_tc.HI[ac] = (acc & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  acc & MIPSDSP_LLO;
+}
+
+void helper_dpaqsalw(int ac, uint32_t rs, uint32_t rt)
+{
+    int32_t temp64, temp63, tempacc63, tempdotp63, tempDL63;
+    int64_t dotp, acc;
+    int64_t tempDL[2];
+    uint64_t temp;
+
+    dotp = mipsdsp_mul_q31_q31(ac, rs, rt);
+    acc = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+          ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    tempDL[0] = acc + dotp;
+
+    tempacc63  = (acc >> 63) & 0x01;
+    tempdotp63 = (dotp >> 63) & 0x01;
+    tempDL63   = (tempDL[0] >> 63) & 0x01;
+
+    if (((tempacc63 == 1) && (tempdotp63 == 1)) | \
+        (((tempacc63 == 1) || (tempdotp63 == 1)) && tempDL63 == 0))
+        tempDL[1] = 1;
+    else
+        tempDL[1] = 0;
+
+    temp = tempDL[0];
+    temp64 = tempDL[1] & 0x01;
+    temp63 = (tempDL[0] >> 63) & 0x01;
+
+    if (temp64 != temp63) {
+        if (temp64 == 1)
+            temp = 0x8000000000000000;
+        else
+            temp = 0x7FFFFFFFFFFFFFFF;
+
+        set_DSPControl_overflow_flag(1, 16 + ac);
+    }
+
+    env->active_tc.HI[ac] = (temp & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  temp & MIPSDSP_LLO;
+}
+
+void helper_dpauhqbl(int ac, uint32_t rs, uint32_t rt)
+{
+    uint8_t rs3, rs2;
+    uint8_t rt3, rt2;
+    uint16_t tempB, tempA;
+    uint64_t tempC, tempBL, tempAL, dotp;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    tempB = mipsdsp_mul_u8_u8(rs3, rt3);
+    tempA = mipsdsp_mul_u8_u8(rs2, rt2);
+    tempBL = tempB;
+    tempAL = tempA;
+    dotp = tempBL + tempAL;
+    tempC = (((uint64_t)env->active_tc.HI[ac] << 32) |  \
+             ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO)) + dotp;
+
+    env->active_tc.HI[ac] = (tempC & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  tempC & MIPSDSP_LLO;
+}
+
+void helper_dpauhqbr(int ac, uint32_t rs, uint32_t rt)
+{
+    uint8_t rs1, rs0;
+    uint8_t rt1, rt0;
+    uint16_t tempB, tempA;
+    uint64_t tempC, tempBL, tempAL, dotp;
+
+    rs1 = (rs & MIPSDSP_Q1) >> 8;
+    rt1 = (rt & MIPSDSP_Q1) >> 8;
+    rs0 = (rs & MIPSDSP_Q0);
+    rt0 = (rt & MIPSDSP_Q0);
+    tempB = mipsdsp_mul_u8_u8(rs1, rt1);
+    tempA = mipsdsp_mul_u8_u8(rs0, rt0);
+    tempBL = tempB;
+    tempAL = tempA;
+    dotp = tempBL + tempAL;
+    tempC = (((uint64_t)env->active_tc.HI[ac] << 32) | \
+             ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO)) + dotp;
+
+    env->active_tc.HI[ac] = (tempC & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  tempC & MIPSDSP_LLO;
+}
+
+void helper_dpsqswph(int ac, uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rsl, rth, rtl;
+    int32_t tempB, tempA;
+    int64_t acc, dotp, tempBL, tempAL;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = mipsdsp_mul_q15_q15(ac, rsh, rth);
+    tempA = mipsdsp_mul_q15_q15(ac, rsl, rtl);
+    tempBL = tempB;
+    tempAL = tempA;
+    dotp = tempBL + tempAL;
+    acc = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+           ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    acc -= dotp;
+
+    env->active_tc.HI[ac] = (acc & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  acc & MIPSDSP_LLO;
+}
+
+void helper_dpsqsalw(int ac, uint32_t rs, uint32_t rt)
+{
+    int32_t temp64, temp63, tempacc63, tempdotp63, tempDL63;
+    int64_t dotp, acc;
+    int64_t tempDL[2];
+    uint64_t temp;
+
+    dotp = mipsdsp_mul_q31_q31(ac, rs, rt);
+    acc = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+          ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    tempDL[0] = acc - dotp;
+
+    tempacc63  = (acc >> 63) & 0x01;
+    tempdotp63 = (dotp >> 63) & 0x01;
+    tempDL63   = (tempDL[0] >> 63) & 0x01;
+
+    if (((tempacc63 == 1) && (tempdotp63 == 0)) | \
+        (((tempacc63 == 1) || (tempdotp63 == 0)) && tempDL63 == 0))
+        tempDL[1] = 1;
+    else
+        tempDL[1] = 0;
+
+    temp = tempDL[0];
+    temp64 = tempDL[1] & 0x01;
+    temp63 = (tempDL[0] >> 63) & 0x01;
+    if (temp64 != temp63) {
+        if (temp64 == 1)
+            temp = 0x8000000000000000;
+        else
+            temp = 0x7FFFFFFFFFFFFFFF;
+        set_DSPControl_overflow_flag(1, ac + 16);
+    }
+
+    env->active_tc.HI[ac] = (temp & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  temp & MIPSDSP_LLO;
+}
+
+void helper_dpsuhqbl(int ac, uint32_t rs, uint32_t rt)
+{
+    uint8_t  rs3, rs2, rt3, rt2;
+    uint16_t tempB,  tempA;
+    uint64_t dotp, tempBL, tempAL, tempC;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+
+    tempB = mipsdsp_mul_u8_u8(rs3, rt3);
+    tempA = mipsdsp_mul_u8_u8(rs2, rt2);
+    tempBL = tempB & 0xFFFF;
+    tempAL = tempA & 0xFFFF;
+
+    dotp   = tempBL + tempAL;
+    tempC  = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+             ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    tempC -= dotp;
+
+    env->active_tc.HI[ac] = (tempC & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  tempC & MIPSDSP_LLO;
+}
+
+void helper_dpsuhqbr(int ac, uint32_t rs, uint32_t rt)
+{
+    uint8_t  rs1, rs0, rt1, rt0;
+    uint16_t tempB,  tempA;
+    uint64_t dotp, tempBL, tempAL, tempC;
+
+    rs1 = (rs & MIPSDSP_Q1) >> 8;
+    rs0 = (rs & MIPSDSP_Q0);
+    rt1 = (rt & MIPSDSP_Q1) >> 8;
+    rt0 = (rt & MIPSDSP_Q0);
+
+    tempB = mipsdsp_mul_u8_u8(rs1, rt1);
+    tempA = mipsdsp_mul_u8_u8(rs0, rt0);
+    tempBL = tempB & 0xFFFF;
+    tempAL = tempA & 0xFFFF;
+
+    dotp   = tempBL + tempAL;
+    tempC  = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+             ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    tempC -= dotp;
+
+    env->active_tc.HI[ac] = (tempC & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  tempC & MIPSDSP_LLO;
+}
+
+void helper_extp(int ac, int size, int rt)
+{
+    int32_t start_pos;
+
+    start_pos = get_DSPControl_pos();
+    if (start_pos - (size + 1) >= -1) {
+        uint32_t temp;
+        uint64_t acc;
+
+        acc = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+              ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+        temp = (acc >> (start_pos - size)) & \
+               (((uint32_t)0x01 << (size + 1)) - 1);
+        env->active_tc.gpr[rt] = temp;
+        set_DSPControl_efi(0);
+    } else {
+        set_DSPControl_efi(1);
+    }
+}
+
+void helper_extpdp(int ac, int size, int rt)
+{
+    int32_t start_pos;
+
+    start_pos = get_DSPControl_pos();
+    if (start_pos - (size + 1) >= -1) {
+        uint32_t temp;
+        uint64_t acc;
+
+        acc  = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+               ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+        temp = (acc >> (start_pos - size)) & \
+               (((uint32_t)0x01 << (size + 1)) - 1);
+
+        env->active_tc.gpr[rt] = temp;
+        set_DSPControl_pos(start_pos - (size + 1));
+        set_DSPControl_efi(0);
+    } else
+        set_DSPControl_efi(1);
+}
+
+void helper_extpdpv(int ac, uint32_t rs, int rt)
+{
+    int32_t start_pos, size;
+
+    start_pos = get_DSPControl_pos();
+    size = rs & 0x1F;
+
+    if (start_pos - (size + 1) >= -1) {
+        uint32_t temp;
+        uint64_t acc;
+        acc  = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+               ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+        temp = (acc >> (start_pos - size)) & (((int)0x01 << (size + 1)) - 1);
+        env->active_tc.gpr[rt] = temp;
+        set_DSPControl_pos(start_pos - (size + 1));
+        set_DSPControl_efi(0);
+    } else
+        set_DSPControl_efi(1);
+}
+
+void helper_extpv(int ac, uint32_t rs, int rt)
+{
+    int32_t start_pos, size;
+
+    start_pos = get_DSPControl_pos();
+    size = rs & 0x1F;
+
+    if (start_pos - (size + 1) >= -1) {
+        uint32_t temp;
+        uint64_t acc;
+        acc = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+              ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+        temp = (acc >> (start_pos - size)) & \
+               (((uint32_t)0x01 << (size + 1)) - 1);
+        env->active_tc.gpr[rt] = temp;
+        set_DSPControl_efi(0);
+    } else
+        set_DSPControl_efi(1);
+}
+
+void helper_extrsh(int ac, int shift, int rt)
+{
+    int64_t temp;
+
+    temp = mipsdsp_rashift_short_acc(ac, shift);
+    if (temp > 0x0000000000007FFF) {
+        temp &= MIPSDSP_LHI;
+        temp |= 0x00007FFF;
+        set_DSPControl_overflow_flag(1, 23);
+    } else if (temp < 0xFFFFFFFFFFFF8000) {
+        temp &= MIPSDSP_LHI;
+        temp |= 0xFFFF8000;
+        set_DSPControl_overflow_flag(1, 23);
+    }
+
+    env->active_tc.gpr[rt] = temp & 0xFFFFFFFF;
+}
+
+void helper_extrw(int ac, int shift, int rt)
+{
+    int32_t tempI;
+    int64_t tempDL[2];
+
+    mipsdsp__rashift_short_acc(tempDL, ac, shift);
+    if ((tempDL[1] != 0 || (tempDL[0] & MIPSDSP_LHI) != 0) && \
+        (tempDL[1] != 1 || (tempDL[0] & MIPSDSP_LHI) != MIPSDSP_LHI))
+        set_DSPControl_overflow_flag(1, 23);
+
+    tempI = (tempDL[0] >> 1) & MIPSDSP_LLO;
+    env->active_tc.gpr[rt] = tempI;
+
+    tempDL[0] += 1;
+    if (tempDL[0] == 0)
+        tempDL[1] += 1;
+
+    if ((!(tempDL[1] == 0 && (tempDL[0] & MIPSDSP_LHI) == 0x00)) && \
+        (!(tempDL[1] == 1 && (tempDL[0] & MIPSDSP_LHI) == MIPSDSP_LHI)))
+        set_DSPControl_overflow_flag(1, 23);
+}
+
+void helper_extrrw(int ac, int shift, int rt)
+{
+    int32_t tempI;
+    int64_t tempDL[2];
+
+    mipsdsp__rashift_short_acc(tempDL, ac, shift);
+    if ((tempDL[1] != 0 || (tempDL[0] & MIPSDSP_LHI) != 0) && \
+        (tempDL[1] != 1 || (tempDL[0] & MIPSDSP_LHI) != MIPSDSP_LHI))
+        set_DSPControl_overflow_flag(1, 23);
+
+    tempDL[0] += 1;
+    if (tempDL[0] == 0)
+        tempDL[1] += 1;
+
+    if ((tempDL[1] != 0 || (tempDL[0] & MIPSDSP_LHI) != 0) && \
+        (tempDL[1] != 1 && (tempDL[0] & MIPSDSP_LHI) != MIPSDSP_LHI))
+        set_DSPControl_overflow_flag(1, 23);
+    tempI = tempDL[0] >> 1;
+
+    env->active_tc.gpr[rt] = tempI;
+}
+
+void helper_extrrsw(int ac, int shift, int rt)
+{
+    int32_t tempI, temp64;
+    int64_t tempDL[2];
+
+    mipsdsp__rashift_short_acc(tempDL, ac, shift);
+    if ((tempDL[1] != 0 || (tempDL[0] & MIPSDSP_LHI) != 0) && \
+        (tempDL[1] != 1 || (tempDL[0] & MIPSDSP_LHI) != MIPSDSP_LHI))
+        set_DSPControl_overflow_flag(1, 23);
+    tempDL[0] += 1;
+    if (tempDL[0] == 0)
+        tempDL[1] += 1;
+    tempI = tempDL[0] >> 1;
+
+    if ((tempDL[1] != 0 || (tempDL[0] & MIPSDSP_LHI) != 0) && \
+        (tempDL[1] != 1 || (tempDL[0] & MIPSDSP_LHI) != MIPSDSP_LHI)) {
+        temp64 = tempDL[1];
+        if (temp64 == 0)
+            tempI = 0x7FFFFFFF;
+        else
+            tempI = 0x80000000;
+        set_DSPControl_overflow_flag(1, 23);
+    }
+    env->active_tc.gpr[rt] = tempI;
+}
+
+uint32_t helper_extrvsh(int ac, uint32_t rs)
+{
+    uint32_t rd;
+    int32_t shift, tempI;
+    int64_t tempL;
+
+    shift = rs & 0x0F;
+    tempL = mipsdsp_rashift_short_acc(ac, shift);
+    if (tempL > 0x000000000007FFF) {
+        tempI = 0x00007FFF;
+        set_DSPControl_overflow_flag(1, 23);
+    } else if (tempL < 0xFFFFFFFFFFF8000) {
+        tempI = 0xFFFF8000;
+        set_DSPControl_overflow_flag(1, 23);
+    }
+    rd = tempI;
+
+    return rd;
+}
+
+void helper_extrvw(int ac, uint32_t rs, int rt)
+{
+    int32_t shift, tempI;
+    int64_t tempDL[2];
+
+    shift = rs & 0x0F;
+    mipsdsp__rashift_short_acc(tempDL, ac, shift);
+    if ((tempDL[1] != 0 || (tempDL[0] & MIPSDSP_LHI) != 0) && \
+        (tempDL[1] != 1 || (tempDL[0] & MIPSDSP_LHI) != MIPSDSP_LHI))
+        set_DSPControl_overflow_flag(1, 23);
+
+    tempI = tempDL[0] >> 1;
+    env->active_tc.gpr[rt] = tempI;
+
+    tempDL[0] += 1;
+    if (tempDL[0] == 0)
+        tempDL[1] += 1;
+    if ((tempDL[1] != 0 || (tempDL[0] & MIPSDSP_LHI) != 0) && \
+        (tempDL[1] != 1 || (tempDL[0] & MIPSDSP_LHI) != MIPSDSP_LHI))
+        set_DSPControl_overflow_flag(1, 23);
+}
+
+void helper_extrvrw(int ac, uint32_t rs, int rt)
+{
+    int32_t shift, tempI;
+    int64_t tempDL[2];
+
+    shift = rs & 0x0F;
+    mipsdsp__rashift_short_acc(tempDL, ac, shift);
+    if ((tempDL[1] != 0 || (tempDL[0] & MIPSDSP_LHI) != 0) && \
+        (tempDL[1] != 1 || (tempDL[0] & MIPSDSP_LHI) != MIPSDSP_LHI))
+        set_DSPControl_overflow_flag(1, 23);
+
+    tempDL[0] += 1;
+    if (tempDL[0] == 0)
+        tempDL[1] += 1;
+
+    if ((tempDL[1] != 0 || (tempDL[0] & MIPSDSP_LHI) != 0) && \
+        (tempDL[1] != 1 || (tempDL[0] & MIPSDSP_LHI) != MIPSDSP_LHI))
+        set_DSPControl_overflow_flag(1, 23);
+    tempI = tempDL[0] >> 1;
+    env->active_tc.gpr[rt] = tempI;
+}
+
+void helper_extrvrsw(int ac, uint32_t rs, int rt)
+{
+    int32_t shift, tempI;
+    int64_t tempDL[2];
+
+    shift = rs & 0x0F;
+    mipsdsp__rashift_short_acc(tempDL, ac, shift);
+    if ((tempDL[1] != 0 || (tempDL[0] & MIPSDSP_LHI) != 0) && \
+        (tempDL[1] != 1 || (tempDL[0] & MIPSDSP_LHI) != MIPSDSP_LHI))
+        set_DSPControl_overflow_flag(1, 23);
+
+    tempDL[0] += 1;
+    if (tempDL[0] == 0)
+        tempDL[1] += 1;
+    tempI = tempDL[0] >> 1;
+
+    if ((tempDL[1] != 0 || (tempDL[0] & MIPSDSP_LHI) != 0) && \
+        (tempDL[1] != 1 || (tempDL[0] & MIPSDSP_LHI) != MIPSDSP_LHI)) {
+        if (tempDL[1] == 0)
+            tempI = 0x7FFFFFFF;
+        else
+            tempI = 0x80000000;
+        set_DSPControl_overflow_flag(1, 23);
+    }
+    env->active_tc.gpr[rt] = tempI;
+}
+
+void helper_insv(int reg_rt, uint32_t rs, uint32_t rt)
+{
+    uint32_t pos, size, msb, lsb, rs_f, rt_f;
+    uint32_t temp, temprs, temprt;
+    target_ulong dspc;
+
+    dspc = env->active_tc.DSPControl;
+    pos  = dspc & 0x1F;
+    size = (dspc >> 7) & 0x1F;
+    msb  = pos + size - 1;
+    lsb  = pos;
+
+    if (lsb > msb)
+        return;
+
+    rs_f = (((int32_t)0x01 << (msb - lsb + 1 + 1)) - 1) << lsb;
+    rt_f = rs_f ^ 0xFFFFFFFF;
+    temprs = rs & rs_f;
+    temprt = rt & rt_f;
+    temp = temprs | temprt;
+    env->active_tc.gpr[reg_rt] = temp;
+}
+
+target_ulong helper_lbux(target_ulong addr, int mem_idx)
+{
+    target_ulong temp;
+
+    temp = do_lbu(addr, mem_idx);
+    temp = temp & MIPSDSP_Q0;
+
+    return temp;
+}
+
+uint32_t helper_lhx(target_ulong vaddr, int mem_idx)
+{
+    target_ulong temp;
+    int16_t half;
+    uint32_t rd;
+
+    temp = do_lw(vaddr, mem_idx);
+    half = temp & 0x0000FFFF;
+    rd   = (int32_t)half;
+
+    return rd;
+}
+
+uint32_t helper_lwx(target_ulong vaddr, int mem_idx)
+{
+    target_ulong temp;
+    uint32_t rd;
+
+    temp = do_lw(vaddr, mem_idx);
+    rd   = (int32_t)temp;
+
+    return rd;
+}
+
+void helper_maqswphl(int ac, uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rth;
+    int32_t  tempA;
+    int64_t tempL, tempAL, acc;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    tempA  = mipsdsp_mul_q15_q15(ac, rsh, rth);
+    tempAL = tempA;
+    acc = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+          ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    tempL  = tempAL + acc;
+    env->active_tc.HI[ac] = (tempL & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  tempL & MIPSDSP_LLO;
+}
+
+void helper_maqsawphl(int ac, uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rth;
+    int32_t tempA;
+    int64_t tempAL;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    tempA = mipsdsp_mul_q15_q15(ac, rsh, rth);
+    tempA = mipsdsp_sat32_acc_q31(ac, tempA);
+    tempAL = tempA;
+
+    env->active_tc.HI[ac] = (tempAL & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  tempAL & MIPSDSP_LLO;
+}
+
+void helper_maqswphr(int ac, uint32_t rs, uint32_t rt)
+{
+    int16_t rsl, rtl;
+    int32_t tempA;
+    int64_t tempL, tempAL, acc;
+
+    rsl = rs & MIPSDSP_LO;
+    rtl = rt & MIPSDSP_LO;
+    tempA  = mipsdsp_mul_q15_q15(ac, rsl, rtl);
+    tempAL = tempA;
+    acc = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+          ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    tempL = tempAL + acc;
+
+    env->active_tc.HI[ac] = (tempL & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  tempL & MIPSDSP_LLO;
+}
+
+void helper_maqsawphr(int ac, uint32_t rs, uint32_t rt)
+{
+    int16_t rsl, rtl;
+    int32_t tempA;
+    int64_t tempAL;
+
+    rsl = rs & MIPSDSP_LO;
+    rtl = rs & MIPSDSP_LO;
+
+    tempA = mipsdsp_mul_q15_q15(ac, rsl, rtl);
+    tempA = mipsdsp_sat32_acc_q31(ac, tempA);
+    tempAL = tempA;
+
+    env->active_tc.HI[ac] = (tempAL & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  tempAL & MIPSDSP_LLO;
+}
+
+uint32_t helper_modsub(uint32_t rs, uint32_t rt)
+{
+    int32_t decr;
+    uint16_t lastindex;
+    uint32_t rd;
+
+    decr = rt & MIPSDSP_Q0;
+    lastindex = (rt >> 8) & MIPSDSP_LO;
+
+    if (rs == 0x00000000)
+        rd = (uint32_t)lastindex;
+    else
+        rd = rs - decr;
+
+    return rd;
+}
+
+void helper_mthlip(int ac, uint32_t rs)
+{
+    int32_t tempA, tempB, pos;
+
+    tempA = rs;
+    tempB = env->active_tc.LO[ac];
+    env->active_tc.HI[ac] = tempB;
+    env->active_tc.LO[ac] = tempA;
+    pos = get_DSPControl_pos();
+
+    if (pos > 32)
+        return;
+    else
+        set_DSPControl_pos(pos + 32);
+}
+
+uint32_t helper_muleqswphl(uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rth;
+    int32_t temp;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    temp = mipsdsp_mul_q15_q15_overflowflag21(rsh, rth);
+    rd = temp;
+
+    return rd;
+}
+
+uint32_t helper_muleqswphr(uint32_t rs, uint32_t rt)
+{
+    int16_t rsl, rtl;
+    int32_t temp;
+    uint32_t rd;
+
+    rsl = rs & MIPSDSP_LO;
+    rtl = rt & MIPSDSP_LO;
+    temp = mipsdsp_mul_q15_q15_overflowflag21(rsl, rtl);
+    rd = temp;
+
+    return rd;
+}
+
+uint32_t helper_muleusphqbl(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs3, rs2;
+    uint16_t tempB, tempA, rth, rtl;
+    uint32_t temp;
+    uint32_t rd;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+    tempB = mipsdsp_mul_u8_u16(rs3, rth);
+    tempA = mipsdsp_mul_u8_u16(rs2, rtl);
+    temp = ((uint32_t)tempB << 16) | ((uint32_t)tempA & MIPSDSP_LO);
+    rd = temp;
+    return rd;
+}
+
+uint32_t helper_muleusphqbr(uint32_t rs, uint32_t rt)
+{
+    uint8_t  rs1, rs0;
+    uint16_t tempB, tempA;
+    uint16_t rth,   rtl;
+    uint32_t temp;
+    uint32_t rd;
+
+    rs1 = (rs & MIPSDSP_Q1) >> 8;
+    rs0 =  rs & MIPSDSP_Q0;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = mipsdsp_mul_u8_u16(rs1, rth);
+    tempA = mipsdsp_mul_u8_u16(rs0, rtl);
+    temp = ((uint32_t)tempB << 16) | ((uint32_t)tempA & MIPSDSP_LO);
+    rd = temp;
+    return rd;
+}
+
+uint32_t helper_mulqrsph(uint32_t rs, uint32_t rt)
+{
+    int16_t tempB, tempA, rsh, rsl, rth, rtl;
+    int32_t temp;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = mipsdsp_rndq15_mul_q15_q15(rsh, rth);
+    tempA = mipsdsp_rndq15_mul_q15_q15(rsl, rtl);
+    temp = ((uint32_t)tempB << 16) | ((uint32_t)tempA & MIPSDSP_LO);
+    rd = temp;
+
+    return rd;
+}
+
+void helper_mulsaqswph(int ac, uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rsl, rth, rtl;
+    int32_t tempB, tempA;
+    int64_t tempBL, tempAL, acc, dotp;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = mipsdsp_mul_q15_q15(ac, rsh, rth);
+    tempA = mipsdsp_mul_q15_q15(ac, rsl, rtl);
+    tempBL = tempB;
+    tempAL = tempA;
+    dotp = tempBL - tempAL;
+    acc = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+          ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    dotp = dotp + acc;
+    env->active_tc.HI[ac] = (dotp & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  dotp & MIPSDSP_LLO;
+}
+
+uint32_t helper_packrlph(uint32_t rs, uint32_t rt)
+{
+    uint16_t rsl, rth;
+    uint32_t rd;
+
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rd = (rsl << 16) | rth;
+
+    return rd;
+}
+
+uint32_t helper_pickqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs3, rs2, rs1, rs0;
+    uint8_t rt3, rt2, rt1, rt0;
+    uint8_t tp3, tp2, tp1, tp0;
+
+    uint32_t dsp27, dsp26, dsp25, dsp24, rd;
+    target_ulong dsp;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs1 = (rs & MIPSDSP_Q1) >>  8;
+    rs0 =  rs & MIPSDSP_Q0;
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    dsp = env->active_tc.DSPControl;
+    dsp27 = (dsp >> 27) & 0x01;
+    dsp26 = (dsp >> 26) & 0x01;
+    dsp25 = (dsp >> 25) & 0x01;
+    dsp24 = (dsp >> 24) & 0x01;
+
+    tp3 = dsp27 == 1 ? rs3 : rt3;
+    tp2 = dsp26 == 1 ? rs2 : rt2;
+    tp1 = dsp25 == 1 ? rs1 : rt1;
+    tp0 = dsp24 == 1 ? rs0 : rt0;
+
+    rd = ((uint32_t)tp3 << 24) | \
+         ((uint32_t)tp2 << 16) | \
+         ((uint32_t)tp1 << 8)  | \
+         (uint32_t)tp0;
+
+    return rd;
+}
+
+uint32_t helper_preceqwphl(uint32_t rt)
+{
+    uint32_t rd;
+
+    rd = rt & MIPSDSP_HI;
+
+    return rd;
+}
+
+uint32_t helper_pickph(uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl, rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t dsp25, dsp24;
+    uint32_t rd;
+    target_ulong dsp;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    dsp = env->active_tc.DSPControl;
+    dsp25 = (dsp >> 25) & 0x01;
+    dsp24 = (dsp >> 24) & 0x01;
+
+    tempB = (dsp25 == 1) ? rsh : rth;
+    tempA = (dsp24 == 1) ? rsl : rtl;
+    rd = (((uint32_t)tempB << 16) & MIPSDSP_HI) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_preceqwphr(uint32_t rt)
+{
+    uint16_t rtl;
+    uint32_t rd;
+
+    rtl = rt & MIPSDSP_LO;
+    rd  = rtl << 16;
+
+    return rd;
+}
+
+uint32_t helper_precequphqbl(uint32_t rt)
+{
+    uint8_t  rt3, rt2;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+
+    tempB = (uint16_t)rt3 << 7;
+    tempA = (uint16_t)rt2 << 7;
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_precequphqbla(uint32_t rt)
+{
+    uint8_t  rt3, rt1;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt1 = (rt & MIPSDSP_Q1) >> 8;
+
+    tempB = (uint16_t)rt3 << 7;
+    tempA = (uint16_t)rt1 << 7;
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_precequphqbr(uint32_t rt)
+{
+    uint8_t  rt1, rt0;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rt1 = (rt & MIPSDSP_Q1) >> 8;
+    rt0 =  rt & MIPSDSP_Q0;
+    tempB = (uint16_t)rt1 << 7;
+    tempA = (uint16_t)rt0 << 7;
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_precequphqbra(uint32_t rt)
+{
+    uint8_t  rt2, rt0;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt0 =  rt & MIPSDSP_Q0;
+    tempB = (uint16_t)rt2 << 7;
+    tempA = (uint16_t)rt0 << 7;
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_preceuphqbl(uint32_t rt)
+{
+    uint8_t  rt3, rt2;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    tempB = (uint16_t) rt3;
+    tempA = (uint16_t) rt2;
+    rd = ((uint32_t)tempB << 16) | ((uint32_t)tempA & MIPSDSP_LO);
+
+    return rd;
+}
+
+uint32_t helper_preceuphqbla(uint32_t rt)
+{
+    uint8_t  rt3, rt1;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt1 = (rt & MIPSDSP_Q1) >> 8;
+    tempB = (uint16_t) rt3;
+    tempA = (uint16_t) rt1;
+    rd = ((uint32_t)tempB << 16) | ((uint32_t)tempA & MIPSDSP_LO);
+
+    return rd;
+}
+
+uint32_t helper_preceuphqbr(uint32_t rt)
+{
+    uint8_t  rt1, rt0;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rt1 = (rt & MIPSDSP_Q1) >> 8;
+    rt0 =  rt & MIPSDSP_Q0;
+    tempB = (uint16_t) rt1;
+    tempA = (uint16_t) rt0;
+    rd = ((uint32_t)tempB << 16) | ((uint32_t)tempA & MIPSDSP_LO);
+    return rd;
+}
+
+uint32_t helper_preceuphqbra(uint32_t rt)
+{
+    uint8_t  rt2, rt0;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt0 =  rt & MIPSDSP_Q0;
+    tempB = (uint16_t)rt2;
+    tempA = (uint16_t)rt0;
+    rd = ((uint32_t)tempB << 16) | ((uint32_t)tempA & MIPSDSP_LO);
+    return rd;
+}
+
+uint32_t helper_precrqqbph(uint32_t rs, uint32_t rt)
+{
+    uint8_t tempD, tempC, tempB, tempA;
+    uint32_t rd;
+
+    tempD = (rs & MIPSDSP_Q3) >> 24;
+    tempC = (rs & MIPSDSP_Q1) >> 8;
+    tempB = (rt & MIPSDSP_Q3) >> 24;
+    tempA = (rt & MIPSDSP_Q1) >> 8;
+
+    rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+         ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_precrqphw(uint32_t rs, uint32_t rt)
+{
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    tempB = (rs & MIPSDSP_HI) >> 16;
+    tempA = (rt & MIPSDSP_HI) >> 16;
+    rd = ((uint32_t)tempB << 16) | ((uint32_t)tempA & MIPSDSP_LO);
+
+    return rd;
+}
+
+uint32_t helper_precrqrsphw(uint32_t rs, uint32_t rt)
+{
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    tempB = mipsdsp_trunc16_sat16_round(rs);
+    tempA = mipsdsp_trunc16_sat16_round(rt);
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_precrqusqbph(uint32_t rs, uint32_t rt)
+{
+    uint8_t  tempD, tempC, tempB, tempA;
+    uint16_t rsh, rsl, rth, rtl;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempD = mipsdsp_sat8_reduce_precision(rsh);
+    tempC = mipsdsp_sat8_reduce_precision(rsl);
+    tempB = mipsdsp_sat8_reduce_precision(rth);
+    tempA = mipsdsp_sat8_reduce_precision(rtl);
+
+    rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+         ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_radduwqb(uint32_t rs)
+{
+    uint8_t  rs3, rs2, rs1, rs0;
+    uint16_t temp;
+    uint32_t rd;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs1 = (rs & MIPSDSP_Q1) >>  8;
+    rs0 =  rs & MIPSDSP_Q0;
+
+    temp = (uint16_t)rs3 + (uint16_t)rs2 + (uint16_t)rs1 + (uint16_t)rs0;
+    rd = temp;
+
+    return rd;
+}
+
+uint32_t helper_rddsp(uint32_t masknum)
+{
+    uint8_t  mask[6];
+    uint32_t ruler, i;
+    uint32_t temp;
+    uint32_t rd;
+    target_ulong dsp;
+
+    ruler = 0x01;
+    for (i = 0; i < 6; i++) {
+        mask[i] = (masknum & ruler) >> i ;
+        ruler = ruler << 1;
+    }
+
+    temp  = 0x00;
+    dsp = env->active_tc.DSPControl;
+
+    if (mask[0] == 1)
+        temp |= dsp & 0x3F;
+
+    if (mask[1] == 1)
+        temp |= dsp & 0x1F80;
+
+    if (mask[2] == 1)
+        temp |= dsp & 0x2000;
+
+    if (mask[3] == 1)
+        temp |= dsp & 0x00FF0000;
+
+    if (mask[4] == 1)
+        temp |= dsp & 0xFF000000;
+
+    if (mask[5] == 1)
+        temp |= dsp & 0x4000;
+
+    rd = temp;
+
+    return rd;
+}
+
+uint32_t helper_replph(uint32_t imm)
+{
+    int16_t temp;
+    int16_t imm_temp;
+    uint32_t rd;
+
+    imm_temp = imm & 0x03FF;
+    temp = (imm_temp << 22) >> 22;
+    rd = (((uint32_t)temp << 16) & MIPSDSP_HI) | \
+         ((uint32_t)temp & MIPSDSP_LO);
+
+    return rd;
+}
+
+uint32_t helper_replqb(uint32_t imm)
+{
+    uint8_t  temp;
+    uint32_t rd;
+
+    temp = imm & 0x00FF;
+    rd = ((uint32_t)temp << 24) | ((uint32_t)temp << 16) | \
+         ((uint32_t)temp << 8) | (uint32_t)temp;
+
+    return rd;
+}
+
+uint32_t helper_replvph(uint32_t rt)
+{
+    uint16_t temp;
+    uint32_t rd;
+
+    temp = rt & MIPSDSP_LO;
+    rd = ((uint32_t)temp << 16) | (uint32_t)temp;
+
+    return rd;
+}
+
+uint32_t helper_replvqb(uint32_t rt)
+{
+    uint8_t temp;
+    uint32_t rd;
+
+    temp = rt & MIPSDSP_Q0;
+    rd = ((uint32_t)temp << 24) | ((uint32_t)temp << 16) | \
+         ((uint32_t)temp << 8) | (uint32_t)temp;
+
+    return rd;
+}
+
+void helper_shilo(int ac, int shift)
+{
+    uint8_t  sign;
+    uint64_t temp, acc;
+
+    shift = (shift << 26) >> 26;
+    sign  = (shift >> 5) & 0x01;
+    shift = (sign == 0) ? shift : -shift;
+    acc = (((uint64_t)env->active_tc.HI[ac] << 32) & MIPSDSP_LHI) | \
+          ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+
+    if (shift == 0)
+        temp = acc;
+    else {
+        if (sign == 0)
+            temp = acc >> shift;
+        else
+            temp = acc << shift;
+    }
+
+    env->active_tc.HI[ac] = (temp & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  temp & MIPSDSP_LLO;
+}
+
+void helper_shilov(int ac, uint32_t rs)
+{
+    uint8_t sign;
+    int8_t  rs5_0;
+    uint64_t temp, acc;
+
+    rs5_0 = rs & 0x3F;
+    rs = (rs5_0 << 2) >> 2;
+    sign = (rs5_0 >> 5) & 0x01;
+    rs5_0 = (sign == 0) ? rs : -rs;
+    acc = (((uint64_t)env->active_tc.HI[ac] << 32) & MIPSDSP_LHI) | \
+           ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    if (rs5_0 == 0)
+        temp = acc;
+    else {
+        if (sign == 0)
+            temp = acc >> rs5_0;
+        else
+            temp = acc << rs5_0;
+    }
+
+    env->active_tc.HI[ac] = (temp & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  temp & MIPSDSP_LLO;
+}
+
+uint32_t helper_shllph(int sa, uint32_t rt)
+{
+    uint16_t rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+    tempB = mipsdsp_lshift16(rth, sa);
+    tempA = mipsdsp_lshift16(rtl, sa);
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_shllsph(int sa, uint32_t rt)
+{
+    uint16_t rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+    tempB = mipsdsp_sat16_lshift(rth, sa);
+    tempA = mipsdsp_sat16_lshift(rtl, sa);
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_shllqb(int sa, uint32_t rt)
+{
+    uint8_t  rt3, rt2, rt1, rt0;
+    uint8_t  tempD, tempC, tempB, tempA;
+    uint32_t rd;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    tempD = mipsdsp_lshift8(rt3, sa);
+    tempC = mipsdsp_lshift8(rt2, sa);
+    tempB = mipsdsp_lshift8(rt1, sa);
+    tempA = mipsdsp_lshift8(rt0, sa);
+    rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+         ((uint32_t)tempB << 8) | ((uint32_t)tempA);
+
+    return rd;
+}
+
+uint32_t helper_shllsw(int sa, uint32_t rt)
+{
+    uint32_t temp, rd;
+
+    temp = mipsdsp_sat32_lshift(rt, sa);
+    rd   = temp;
+
+    return rd;
+}
+
+uint32_t helper_shllvph(uint32_t rs, uint32_t rt)
+{
+    uint8_t  rs3_0;
+    uint16_t rth, rtl, tempB, tempA;
+    uint32_t rd;
+
+    rth   = (rt & MIPSDSP_HI) >> 16;
+    rtl   =  rt & MIPSDSP_LO;
+    rs3_0 = rs & 0x0F;
+
+    tempB = mipsdsp_lshift16(rth, rs3_0);
+    tempA = mipsdsp_lshift16(rtl, rs3_0);
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_shllvsph(uint32_t rs, uint32_t rt)
+{
+    uint8_t  rs3_0;
+    uint16_t rth, rtl, tempB, tempA;
+    uint32_t rd;
+
+    rth   = (rt & MIPSDSP_HI) >> 16;
+    rtl   =  rt & MIPSDSP_LO;
+    rs3_0 = rs & 0x0F;
+
+    tempB = mipsdsp_sat16_lshift(rth, rs3_0);
+    tempA = mipsdsp_sat16_lshift(rtl, rs3_0);
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_shllvqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t  rs2_0;
+    uint8_t  rt3, rt2, rt1, rt0;
+    uint8_t  tempD, tempC, tempB, tempA;
+    uint32_t rd;
+
+    rs2_0 = rs & 0x07;
+    rt3   = (rt & MIPSDSP_Q3) >> 24;
+    rt2   = (rt & MIPSDSP_Q2) >> 16;
+    rt1   = (rt & MIPSDSP_Q1) >>  8;
+    rt0   =  rt & MIPSDSP_Q0;
+
+    tempD = mipsdsp_lshift8(rt3, rs2_0);
+    tempC = mipsdsp_lshift8(rt2, rs2_0);
+    tempB = mipsdsp_lshift8(rt1, rs2_0);
+    tempA = mipsdsp_lshift8(rt0, rs2_0);
+
+    rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+         ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_shllvsw(uint32_t rs, uint32_t rt)
+{
+    uint8_t  rs4_0;
+    uint32_t rd;
+
+    rs4_0 = rs & 0x1F;
+    rd = mipsdsp_sat32_lshift(rt, rs4_0);
+
+    return rd;
+}
+
+uint32_t helper_shraph(int sa, uint32_t rt)
+{
+    uint16_t rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+    tempB = mipsdsp_rashift16(rth, sa);
+    tempA = mipsdsp_rashift16(rtl, sa);
+    rd = ((uint32_t)tempB << 16) | (uint32_t) tempA;
+
+    return rd;
+}
+
+uint32_t helper_shrarph(int sa, uint32_t rt)
+{
+    uint16_t rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+    tempB = mipsdsp_rnd16_rashift(rth, sa);
+    tempA = mipsdsp_rnd16_rashift(rtl, sa);
+    rd = ((uint32_t)tempB << 16) | (uint32_t) tempA;
+
+    return rd;
+}
+
+uint32_t helper_shrarw(int sa, uint32_t rt)
+{
+    uint32_t rd;
+
+    rd = mipsdsp_rnd32_rashift(rt, sa);
+
+    return rd;
+}
+
+uint32_t helper_shravph(uint32_t rs, uint32_t rt)
+{
+    uint8_t  rs3_0;
+    uint16_t rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rs3_0 = rs & 0x0F;
+    rth   = (rt & MIPSDSP_HI) >> 16;
+    rtl   =  rt & MIPSDSP_LO;
+    tempB = mipsdsp_rashift16(rth, rs3_0);
+    tempA = mipsdsp_rashift16(rtl, rs3_0);
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_shravrph(uint32_t rs, uint32_t rt)
+{
+    uint8_t  rs3_0;
+    uint16_t rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rs3_0 = rs & 0x0F;
+    rth   = (rt & MIPSDSP_HI) >> 16;
+    rtl   =  rt & MIPSDSP_LO;
+    tempB = mipsdsp_rnd16_rashift(rth, rs3_0);
+    tempA = mipsdsp_rnd16_rashift(rtl, rs3_0);
+
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_shravrw(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs4_0;
+    uint32_t rd;
+
+    rs4_0 = rs & 0x1F;
+    rd = mipsdsp_rnd32_rashift(rt, rs4_0);
+
+    return rd;
+}
+
+uint32_t helper_shrlqb(int sa, uint32_t rt)
+{
+    uint8_t  rt3, rt2, rt1, rt0;
+    uint8_t  tempD, tempC, tempB, tempA;
+    uint32_t rd;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    tempD = mipsdsp_rshift8(rt3, sa);
+    tempC = mipsdsp_rshift8(rt2, sa);
+    tempB = mipsdsp_rshift8(rt1, sa);
+    tempA = mipsdsp_rshift8(rt0, sa);
+
+    rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+         ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_shrlvqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs2_0;
+    uint8_t rt3, rt2, rt1, rt0;
+    uint8_t tempD, tempC, tempB, tempA;
+    uint32_t rd;
+
+    rs2_0 = rs & 0x07;
+    rt3   = (rt & MIPSDSP_Q3) >> 24;
+    rt2   = (rt & MIPSDSP_Q2) >> 16;
+    rt1   = (rt & MIPSDSP_Q1) >>  8;
+    rt0   =  rt & MIPSDSP_Q0;
+
+    tempD = mipsdsp_rshift8(rt3, rs2_0);
+    tempC = mipsdsp_rshift8(rt2, rs2_0);
+    tempB = mipsdsp_rshift8(rt1, rs2_0);
+    tempA = mipsdsp_rshift8(rt0, rs2_0);
+    rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+         ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_subqph(uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl;
+    uint16_t rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = mipsdsp_sub_i16(rsh, rth);
+    tempA = mipsdsp_sub_i16(rsl, rtl);
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_subqsph(uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl;
+    uint16_t rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = mipsdsp_sat16_sub(rsh, rth);
+    tempA = mipsdsp_sat16_sub(rsl, rtl);
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_subqsw(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+
+    rd = mipsdsp_sat32_sub(rs, rt);
+
+    return rd;
+}
+
+uint32_t helper_subuqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs3, rs2, rs1, rs0;
+    uint8_t rt3, rt2, rt1, rt0;
+    uint8_t tempD, tempC, tempB, tempA;
+    uint32_t rd;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs1 = (rs & MIPSDSP_Q1) >>  8;
+    rs0 =  rs & MIPSDSP_Q0;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    tempD = mipsdsp_sub_u8(rs3, rt3);
+    tempC = mipsdsp_sub_u8(rs2, rt2);
+    tempB = mipsdsp_sub_u8(rs1, rt1);
+    tempA = mipsdsp_sub_u8(rs0, rt0);
+
+    rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+         ((uint32_t)tempB << 8) | (uint32_t)tempA;
+    return rd;
+}
+
+uint32_t helper_subusqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs3, rs2, rs1, rs0;
+    uint8_t rt3, rt2, rt1, rt0;
+    uint8_t tempD, tempC, tempB, tempA;
+    uint32_t rd;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs1 = (rs & MIPSDSP_Q1) >>  8;
+    rs0 =  rs & MIPSDSP_Q0;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    tempD = mipsdsp_satu8_sub(rs3, rt3);
+    tempC = mipsdsp_satu8_sub(rs2, rt2);
+    tempB = mipsdsp_satu8_sub(rs1, rt1);
+    tempA = mipsdsp_satu8_sub(rs0, rt0);
+
+    rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+         ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+    return rd;
+}
+
+void helper_wrdsp(uint32_t rs, int mask_num)
+{
+    uint8_t  mask[6];
+    uint8_t  i;
+    uint32_t newbits, overwrite;
+    target_ulong dsp;
+
+    newbits   = 0x00;
+    overwrite = 0xFFFFFFFF;
+    dsp = env->active_tc.DSPControl;
+
+    for (i = 0; i < 6; i++)
+        mask[i] = (mask_num >> i) & 0x01;
+
+    if (mask[0] == 1) {
+        overwrite &= 0xFFFFFFC0;
+        newbits   &= 0xFFFFFFC0;
+        newbits   |= 0x0000003F & rs;
+    }
+
+    if (mask[1] == 1) {
+        overwrite &= 0xFFFFE07F;
+        newbits   &= 0xFFFFE07F;
+        newbits   |= 0x00001F80 & rs;
+    }
+
+    if (mask[2] == 1) {
+        overwrite &= 0xFFFFDFFF;
+        newbits   &= 0xFFFFDFFF;
+        newbits   |= 0x00002000 & rs;
+    }
+
+    if (mask[3] == 1) {
+        overwrite &= 0xFF00FFFF;
+        newbits   &= 0xFF00FFFF;
+        newbits   |= 0x00FF0000 & rs;
+    }
+
+    if (mask[4] == 1) {
+        overwrite &= 0x00FFFFFF;
+        newbits   &= 0x00FFFFFF;
+        newbits   |= 0xFF000000 & rs;
+    }
+
+    if (mask[5] == 1) {
+        overwrite &= 0xFFFFBFFF;
+        newbits   &= 0xFFFFBFFF;
+        newbits   |= 0x00004000 & rs;
+    }
+
+    dsp = dsp & overwrite;
+    dsp = dsp | newbits;
+    env->active_tc.DSPControl = dsp;
+}
+
+/* MIPS DSPR2 */
+uint32_t helper_absqsqb(uint32_t rt)
+{
+    uint32_t rd;
+    int8_t tempD, tempC, tempB, tempA;
+
+    tempD = (rt & MIPSDSP_Q3) >> 24;
+    tempC = (rt & MIPSDSP_Q2) >> 16;
+    tempB = (rt & MIPSDSP_Q1) >> 8;
+    tempA =  rt & MIPSDSP_Q0;
+
+    rd = (((uint32_t)mipsdsp_sat_abs_u8 (tempD) << 24) & MIPSDSP_Q3) | \
+         (((uint32_t)mipsdsp_sat_abs_u8 (tempC) << 16) & MIPSDSP_Q2) | \
+         (((uint32_t)mipsdsp_sat_abs_u8 (tempB) << 8) & MIPSDSP_Q1) | \
+         ((uint32_t)mipsdsp_sat_abs_u8 (tempA) & MIPSDSP_Q0);
+
+    return rd;
+}
+
+uint32_t helper_addqhph(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    int16_t rsh, rsl, rth, rtl, temph, templ;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    temph = mipsdsp_rshift1_add_q16(rsh, rth);
+    templ = mipsdsp_rshift1_add_q16(rsl, rtl);
+    rd = ((uint32_t)temph << 16) | ((uint32_t)templ & MIPSDSP_LO);
+
+    return rd;
+}
+
+uint32_t helper_addqhrph(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    int16_t rsh, rsl, rth, rtl, temph, templ;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    temph = mipsdsp_rrshift1_add_q16(rsh, rth);
+    templ = mipsdsp_rrshift1_add_q16(rsl, rtl);
+    rd = ((uint32_t)temph << 16) | ((uint32_t)templ & MIPSDSP_LO);
+
+    return rd;
+}
+
+uint32_t helper_addqhw(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+
+    rd = mipsdsp_rshift1_add_q32(rs, rt);
+
+    return rd;
+}
+
+uint32_t helper_addqhrw(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+
+    rd = mipsdsp_rrshift1_add_q32(rs, rt);
+
+    return rd;
+}
+
+uint32_t helper_adduph(uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl, rth, rtl, temph, templ;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+    temph = mipsdsp_add_u16(rsh, rth);
+    templ = mipsdsp_add_u16(rsl, rtl);
+    rd = ((uint32_t)temph << 16) | ((uint32_t)templ & MIPSDSP_LO);
+
+    return rd;
+}
+
+uint32_t helper_addusph(uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl, rth, rtl, temph, templ;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+    temph = mipsdsp_sat_add_u16(rsh, rth);
+    templ = mipsdsp_sat_add_u16(rsl, rtl);
+    rd = ((uint32_t)temph << 16) | ((uint32_t)templ & MIPSDSP_LO);
+
+    return rd;
+}
+
+uint32_t helper_adduqb(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    uint8_t  rs0, rs1, rs2, rs3;
+    uint8_t  rt0, rt1, rt2, rt3;
+    uint8_t  temp0, temp1, temp2, temp3;
+
+    rs0 =  rs & MIPSDSP_Q0;
+    rs1 = (rs & MIPSDSP_Q1) >>  8;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+
+    rt0 =  rt & MIPSDSP_Q0;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+
+    temp0 = mipsdsp_add_u8(rs0, rt0);
+    temp1 = mipsdsp_add_u8(rs1, rt1);
+    temp2 = mipsdsp_add_u8(rs2, rt2);
+    temp3 = mipsdsp_add_u8(rs3, rt3);
+
+    rd = (((uint32_t)temp3 << 24) & MIPSDSP_Q3) | \
+         (((uint32_t)temp2 << 16) & MIPSDSP_Q2) | \
+         (((uint32_t)temp1 <<  8) & MIPSDSP_Q1) | \
+         ((uint32_t)temp0 & MIPSDSP_Q0);
+
+    return rd;
+}
+
+uint32_t helper_addusqb(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    uint8_t rs0, rs1, rs2, rs3;
+    uint8_t rt0, rt1, rt2, rt3;
+    uint8_t temp0, temp1, temp2, temp3;
+
+    rs0 =  rs & MIPSDSP_Q0;
+    rs1 = (rs & MIPSDSP_Q1) >>  8;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+
+    rt0 =  rt & MIPSDSP_Q0;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+
+    temp0 = mipsdsp_sat_add_u8(rs0, rt0);
+    temp1 = mipsdsp_sat_add_u8(rs1, rt1);
+    temp2 = mipsdsp_sat_add_u8(rs2, rt2);
+    temp3 = mipsdsp_sat_add_u8(rs3, rt3);
+
+    rd = (((uint8_t)temp3 << 24) & MIPSDSP_Q3) | \
+         (((uint8_t)temp2 << 16) & MIPSDSP_Q2) | \
+         (((uint8_t)temp1 <<  8) & MIPSDSP_Q1) | \
+         ((uint8_t)temp0 & MIPSDSP_Q0);
+
+    return rd;
+}
+
+uint32_t helper_adduhqb(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    uint8_t  rs0, rs1, rs2, rs3;
+    uint8_t  rt0, rt1, rt2, rt3;
+    uint8_t  temp0, temp1, temp2, temp3;
+
+    rs0 =  rs & MIPSDSP_Q0;
+    rs1 = (rs & MIPSDSP_Q1) >>  8;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+
+    rt0 =  rt & MIPSDSP_Q0;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+
+    temp0 = mipsdsp_rshift1_add_u8(rs0, rt0);
+    temp1 = mipsdsp_rshift1_add_u8(rs1, rt1);
+    temp2 = mipsdsp_rshift1_add_u8(rs2, rt2);
+    temp3 = mipsdsp_rshift1_add_u8(rs3, rt3);
+
+    rd = (((uint32_t)temp3 << 24) & MIPSDSP_Q3) | \
+         (((uint32_t)temp2 << 16) & MIPSDSP_Q2) | \
+         (((uint32_t)temp1 <<  8) & MIPSDSP_Q1) | \
+         ((uint32_t)temp0        & MIPSDSP_Q0);
+
+    return rd;
+}
+
+uint32_t helper_adduhrqb(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    uint8_t  rs0, rs1, rs2, rs3;
+    uint8_t  rt0, rt1, rt2, rt3;
+    uint8_t  temp0, temp1, temp2, temp3;
+
+    rs0 =  rs & MIPSDSP_Q0;
+    rs1 = (rs & MIPSDSP_Q1) >>  8;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+
+    rt0 =  rt & MIPSDSP_Q0;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+
+    temp0 = mipsdsp_rrshift1_add_u8(rs0, rt0);
+    temp1 = mipsdsp_rrshift1_add_u8(rs1, rt1);
+    temp2 = mipsdsp_rrshift1_add_u8(rs2, rt2);
+    temp3 = mipsdsp_rrshift1_add_u8(rs3, rt3);
+
+    rd = (((uint32_t)temp3 << 24) & MIPSDSP_Q3) | \
+         (((uint32_t)temp2 << 16) & MIPSDSP_Q2) | \
+         (((uint32_t)temp1 <<  8) & MIPSDSP_Q1) | \
+         ((uint32_t)temp0 & MIPSDSP_Q0);
+
+    return rd;
+}
+
+uint32_t helper_append(uint32_t rt, uint32_t rs, int sa)
+{
+    int len;
+    uint32_t temp;
+
+    len = sa & 0x1F;
+
+    if (len == 0)
+        temp = rt;
+    else {
+        temp = (rt << len) | (rs & (((uint32_t)0x01 << len) - 1));
+    }
+    rt = temp;
+
+    return temp;
+}
+
+uint32_t helper_balign(uint32_t rt, uint32_t rs, uint32_t bp)
+{
+    uint32_t temp;
+    bp = bp & 0x03;
+
+    if (bp == 0 || bp == 2)
+        return rt;
+    else
+        temp = (rt << (8 * bp)) | (rs >> (8 * (4 - bp)));
+    rt = temp;
+
+    return rt;
+}
+
+
+uint32_t helper_cmpgdueqqb(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    uint8_t  rs0, rs1, rs2, rs3;
+    uint8_t  rt0, rt1, rt2, rt3;
+    uint32_t cc0 = 0, cc1 = 0, cc2 = 0, cc3 = 0;
+    uint32_t flag;
+
+    rs0 =  rs & MIPSDSP_Q0;
+    rs1 = (rs & MIPSDSP_Q1) >>  8;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+
+    rt0 =  rt & MIPSDSP_Q0;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+
+    if (rs0 == rt0)
+        cc0 = 1;
+
+    if (rs1 == rt1)
+        cc1 = 1;
+
+    if (rs2 == rt2)
+        cc2 = 1;
+
+    if (rs3 == rt3)
+        cc3 = 1;
+
+    flag = (cc3 << 3) | (cc2 << 2) | (cc1 << 1) | cc0;
+    set_DSPControl_24(flag, 4);
+    rd = flag;
+
+    return rd;
+}
+
+uint32_t helper_cmpgdultqb(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    uint8_t  rs0, rs1, rs2, rs3;
+    uint8_t  rt0, rt1, rt2, rt3;
+    uint32_t cc0 = 0, cc1 = 0, cc2 = 0, cc3 = 0;
+    uint32_t flag;
+
+    rs0 =  rs & MIPSDSP_Q0;
+    rs1 = (rs & MIPSDSP_Q1) >>  8;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rt0 =  rt & MIPSDSP_Q0;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+
+    if (rs0 < rt0)
+        cc0 = 1;
+
+    if (rs1 < rt1)
+        cc1 = 1;
+
+    if (rs2 < rt2)
+        cc2 = 1;
+
+    if (rs3 < rt3)
+        cc3 = 1;
+
+    flag = (cc3 << 3) | (cc2 << 2) | (cc1 << 1) | cc0;
+    set_DSPControl_24(flag, 4);
+    rd = flag;
+
+    return rd;
+}
+
+uint32_t helper_cmpgduleqb(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    uint8_t  rs0, rs1, rs2, rs3;
+    uint8_t  rt0, rt1, rt2, rt3;
+    uint32_t cc0 = 0, cc1 = 0, cc2 = 0, cc3 = 0;
+    uint32_t flag;
+
+    rs0 =  rs & MIPSDSP_Q0;
+    rs1 = (rs & MIPSDSP_Q1) >>  8;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+
+    rt0 =  rt & MIPSDSP_Q0;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+
+    if (rs0 <= rt0)
+        cc0 = 1;
+
+    if (rs1 <= rt1)
+        cc1 = 1;
+
+    if (rs2 <= rt2)
+        cc2 = 1;
+
+    if (rs3 <= rt3)
+        cc3 = 1;
+
+    flag = (cc3 << 3) | (cc2 << 2) | (cc1 << 1) | cc0;
+    set_DSPControl_24(flag, 4);
+    rd = flag;
+
+    return rd;
+}
+
+void helper_dpawph(int ac, uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl, rth, rtl;
+    int32_t  tempA, tempB;
+    int64_t  acc, tempAL, tempBL;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = (int32_t)rsh * (int32_t)rth;
+    tempA = (int32_t)rsl * (int32_t)rtl;
+    tempBL = tempB;
+    tempAL = tempA;
+
+    acc = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+          ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    acc += tempBL + tempAL;
+
+    env->active_tc.HI[ac] = (acc & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  acc & MIPSDSP_LLO;
+}
+
+void helper_dpaqxswph(int ac, uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl, rth, rtl;
+    int32_t tempB, tempA;
+    int64_t acc, dotp, tempBL, tempAL;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = mipsdsp_mul_q15_q15(ac, rsh, rtl);
+    tempA = mipsdsp_mul_q15_q15(ac, rsl, rth);
+    tempBL = tempB;
+    tempAL = tempA;
+    dotp = tempBL + tempAL;
+    acc = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+          ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    acc += dotp;
+
+    env->active_tc.HI[ac] = (acc & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  acc & MIPSDSP_LLO;
+}
+
+void helper_dpaqxsawph(int ac, uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rsl, rth, rtl;
+    int32_t tempB, tempA, tempC62_31, tempC63;
+    int64_t acc, dotp, tempBL, tempAL, tempC;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = mipsdsp_mul_q15_q15(ac, rsh, rtl);
+    tempA = mipsdsp_mul_q15_q15(ac, rsl, rth);
+    tempBL = tempB;
+    tempAL = tempA;
+    dotp = tempBL + tempAL;
+    acc = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+          ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    tempC = acc + dotp;
+    tempC63 = (tempC >> 63) & 0x01;
+    tempC62_31 = (tempC >> 31) & 0xFFFFFFFF;
+
+    if ((tempC63 == 0) && (tempC62_31 == 0xFFFFFFFF)) {
+        tempC = 0x80000000;
+        set_DSPControl_overflow_flag(1, 16 + ac);
+    }
+
+    env->active_tc.HI[ac] = (tempC & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  tempC & MIPSDSP_LLO;
+}
+
+void helper_dpaxwph(int ac, uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl, rth, rtl;
+    int32_t tempB, tempA;
+    int64_t acc, dotp, tempBL, tempAL;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB  = (uint32_t)rsh * (uint32_t)rth;
+    tempA  = (uint32_t)rsl * (uint32_t)rtl;
+    tempBL = tempB;
+    tempAL = tempA;
+    dotp =  tempBL + tempAL;
+    acc  =  ((uint64_t)env->active_tc.HI[ac] << 32) | \
+            ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    acc  += dotp;
+
+    env->active_tc.HI[ac] = (acc & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  acc & MIPSDSP_LLO;
+}
+
+void helper_dpswph(int ac, uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl, rth, rtl;
+    int32_t tempB, tempA;
+    int64_t acc, dotp, tempBL, tempAL;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB  = (int32_t)rsh * (int32_t)rth;
+    tempA  = (int32_t)rsl * (int32_t)rtl;
+    tempBL = tempB;
+    tempAL = tempA;
+    dotp =  tempBL + tempAL;
+    acc  =  ((uint64_t)env->active_tc.HI[ac] << 32) | \
+            ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    acc  -= dotp;
+
+    env->active_tc.HI[ac] = (acc & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  acc & MIPSDSP_LLO;
+}
+
+void helper_dpsqxswph(int ac, uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rsl, rth, rtl;
+    int32_t tempB, tempA;
+    int64_t dotp, tempC, tempBL, tempAL;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = mipsdsp_mul_q15_q15(ac, rsh, rtl);
+    tempA = mipsdsp_mul_q15_q15(ac, rsl, rth);
+    tempBL = tempB;
+    tempAL = tempA;
+    dotp = tempBL + tempAL;
+    tempC = (((uint64_t)env->active_tc.HI[ac] << 32) | \
+            ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO)) - dotp;
+
+    env->active_tc.HI[ac] = (tempC & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  tempC & MIPSDSP_LLO;
+}
+
+void helper_dpsqxsawph(int ac, uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rsl, rth, rtl;
+    int32_t tempB, tempA, tempC63, tempC62_31;
+    int64_t dotp, tempBL, tempAL, tempC;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+    tempB = mipsdsp_mul_q15_q15(ac, rsh, rtl);
+    tempA = mipsdsp_mul_q15_q15(ac, rsl, rth);
+
+    tempBL = tempB;
+    tempAL = tempA;
+    dotp   = tempBL + tempAL;
+    tempC  = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+             ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    tempC -= dotp;
+
+    tempC63 = (tempC >> 63) & 0x01;
+    tempC62_31 = (tempC >> 31) & 0xFFFFFFFF;
+
+    if ((tempC63 == 0) && (tempC62_31 != 0)) {
+        tempC = 0x7FFFFFFF;
+        set_DSPControl_overflow_flag(1, 16 + ac);
+    }
+
+    if ((tempC63 == 1) && (tempC62_31 != 0xFFFFFFFF)) {
+        tempC = 0xFFFFFFFF80000000;
+        set_DSPControl_overflow_flag(1, 16 + ac);
+    }
+
+    env->active_tc.HI[ac] = (tempC & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  tempC & MIPSDSP_LLO;
+}
+
+void helper_dpsxwph(int ac, uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl, rth, rtl;
+    int32_t  tempB,  tempA;
+    int64_t acc, dotp, tempBL, tempAL;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = (int32_t)rsh * (int32_t)rtl;
+    tempA = (int32_t)rsl * (int32_t)rth;
+    tempBL = tempB;
+    tempAL = tempA;
+    dotp = tempBL + tempAL;
+
+    acc  = ((uint64_t)env->active_tc.HI[ac] << 32) | \
+           ((uint64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    acc -= dotp;
+    env->active_tc.HI[ac] = (acc & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  acc & MIPSDSP_LLO;
+}
+
+uint32_t helper_mulph(uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rsl, rth, rtl;
+    int32_t tempB, tempA;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+    tempB = mipsdsp_mul_i16_i16(rsh, rth);
+    tempA = mipsdsp_mul_i16_i16(rsl, rtl);
+
+    rd = ((tempB & MIPSDSP_LO) << 16) | (tempA & MIPSDSP_LO);
+
+    return rd;
+}
+
+uint32_t helper_mulsph(uint32_t rs, uint32_t rt)
+{
+    int16_t  rsh, rsl, rth, rtl;
+    int32_t  tempB, tempA;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+    tempB = mipsdsp_sat16_mul_i16_i16(rsh, rth);
+    tempA = mipsdsp_sat16_mul_i16_i16(rsl, rtl);
+
+    rd = ((tempB & MIPSDSP_LO) << 16) | (tempA & MIPSDSP_LO);
+
+    return rd;
+}
+
+uint32_t helper_mulqsph(uint32_t rs, uint32_t rt)
+{
+    int16_t rsh, rsl, rth, rtl;
+    int32_t temp, tempB, tempA;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = mipsdsp_sat16_mul_q15_q15(rsh, rth);
+    tempA = mipsdsp_sat16_mul_q15_q15(rsl, rtl);
+    temp = ((tempB & MIPSDSP_LO) << 16) | (tempA & MIPSDSP_LO);
+    rd = temp;
+
+    return rd;
+}
+
+uint32_t helper_mulqrsw(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    int32_t tempI;
+    int64_t tempL;
+
+    if ((rs == 0x80000000) && (rt == 0x80000000)) {
+        tempL = 0x7FFFFFFF00000000;
+        set_DSPControl_overflow_flag(1, 21);
+    } else {
+        tempL  = ((int64_t)rs * (int64_t)rt) << 1;
+        tempL += 0x80000000;
+    }
+    tempI = (tempL & MIPSDSP_LHI) >> 32;
+    rd = tempI;
+
+    return rd;
+}
+
+uint32_t helper_mulqsw(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+    int32_t tempI;
+    int64_t tempL;
+
+    if ((rs == 0x80000000) && (rt == 0x80000000)) {
+        tempL = 0x7FFFFFFF00000000;
+        set_DSPControl_overflow_flag(1, 21);
+    } else {
+        tempL  = ((int64_t)rs * (int64_t)rt) << 1;
+    }
+    tempI = (tempL & MIPSDSP_LHI) >> 32;
+    rd = tempI;
+
+    return rd;
+}
+
+void helper_mulsawph(int ac, uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl, rth, rtl;
+    int32_t tempB, tempA;
+    int64_t dotp, acc, tempBL, tempAL;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = (int32_t)rsh * (int32_t)rth;
+    tempA = (int32_t)rsl * (int32_t)rtl;
+    tempBL = tempB;
+    tempAL = tempA;
+
+    dotp = tempBL - tempAL;
+    acc  = ((int64_t)env->active_tc.HI[ac] << 32) | \
+           ((int64_t)env->active_tc.LO[ac] & MIPSDSP_LLO);
+    acc = acc + dotp;
+
+    env->active_tc.HI[ac] = (acc & MIPSDSP_LHI) >> 32;
+    env->active_tc.LO[ac] =  acc & MIPSDSP_LLO;
+}
+
+uint32_t helper_precrqbph(uint32_t rs, uint32_t rt)
+{
+    uint8_t  rs2, rs0, rt2, rt0;
+    uint32_t rd;
+
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs0 =  rs & MIPSDSP_Q0;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt0 =  rt & MIPSDSP_Q0;
+    rd = ((uint32_t)rs2 << 24) | ((uint32_t)rs0 << 16) | \
+         ((uint32_t)rt2 << 8) | (uint32_t)rt0;
+
+    return rd;
+}
+
+uint32_t helper_precrsraphw(int sa, uint32_t rs, uint32_t rt)
+{
+    uint16_t tempB, tempA;
+
+    if (sa == 0) {
+        tempB = rt & MIPSDSP_LO;
+        tempA = rs & MIPSDSP_LO;
+    } else {
+        tempB = ((int32_t)rt >> sa) & MIPSDSP_LO;
+        tempA = ((int32_t)rs >> sa) & MIPSDSP_LO;
+    }
+    rt = ((uint32_t)tempB << 16) | ((uint32_t)tempA & MIPSDSP_LO);
+
+    return rt;
+}
+
+uint32_t helper_precrsrarphw(int sa, uint32_t rs, uint32_t rt)
+{
+    uint64_t tempB, tempA;
+
+    if (sa == 0) {
+        tempB = (rt & MIPSDSP_LO) << 1;
+        tempA = (rs & MIPSDSP_LO) << 1;
+    } else {
+        tempB = ((int32_t)rt >> (sa - 1)) + 1;
+        tempA = ((int32_t)rs >> (sa - 1)) + 1;
+    }
+    rt = (((tempB >> 1) & MIPSDSP_LO) << 16) | ((tempA >> 1) & MIPSDSP_LO);
+
+    return rt;
+}
+
+uint32_t helper_prepend(int sa, uint32_t rs, uint32_t rt)
+{
+    uint32_t temp;
+
+    if (sa == 0)
+        temp = rt;
+    else
+        temp = (rs << (32 - sa)) | rt >> sa;
+
+    rt = temp;
+
+    return rt;
+}
+
+uint32_t helper_shraqb(int sa, uint32_t rt)
+{
+    int8_t  rt3, rt2, rt1, rt0;
+    uint8_t tempD, tempC, tempB, tempA;
+    uint32_t rd;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    tempD = rt3 >> sa;
+    tempC = rt2 >> sa;
+    tempB = rt1 >> sa;
+    tempA = rt0 >> sa;
+
+    rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+          ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_shrarqb(int sa, uint32_t rt)
+{
+    int8_t  rt3, rt2, rt1, rt0;
+    uint16_t tempD, tempC, tempB, tempA;
+    uint32_t rd;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    if (sa == 0) {
+        tempD = rt3 & 0x00FF;
+        tempC = rt2 & 0x00FF;
+        tempB = rt1 & 0x00FF;
+        tempA = rt0 & 0x00FF;
+    } else {
+        tempD = ((int16_t)rt3 >> (sa - 1)) + 1;
+        tempC = ((int16_t)rt2 >> (sa - 1)) + 1;
+        tempB = ((int16_t)rt1 >> (sa - 1)) + 1;
+        tempA = ((int16_t)rt0 >> (sa - 1)) + 1;
+    }
+
+    rd = ((uint32_t)((tempD >> 1) & 0x00FF) << 24) | \
+         ((uint32_t)((tempC >> 1) & 0x00FF) << 16) | \
+         ((uint32_t)((tempB >> 1) & 0x00FF) <<  8) | \
+         (uint32_t)((tempA >> 1) & 0x00FF) ;
+
+    return rd;
+}
+
+uint32_t helper_shravqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t  rs2_0;
+    int8_t   rt3, rt2, rt1, rt0;
+    uint8_t  tempD, tempC, tempB, tempA;
+    uint32_t rd;
+
+    rs2_0 = rs & 0x07;
+    rt3   = (rt & MIPSDSP_Q3) >> 24;
+    rt2   = (rt & MIPSDSP_Q2) >> 16;
+    rt1   = (rt & MIPSDSP_Q1) >>  8;
+    rt0   =  rt & MIPSDSP_Q0;
+
+    if (rs2_0 == 0) {
+        tempD = rt3;
+        tempC = rt2;
+        tempB = rt1;
+        tempA = rt0;
+    } else {
+        tempD = rt3 >> rs2_0;
+        tempC = rt2 >> rs2_0;
+        tempB = rt1 >> rs2_0;
+        tempA = rt0 >> rs2_0;
+    }
+
+    rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+         ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_shravrqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs2_0;
+    int8_t  rt3, rt2, rt1, rt0;
+    uint16_t tempD, tempC, tempB, tempA;
+    uint32_t rd;
+
+    rs2_0 = rs & 0x07;
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    if (rs2_0 == 0) {
+        tempD = (int16_t)rt3 << 1;
+        tempC = (int16_t)rt2 << 1;
+        tempB = (int16_t)rt1 << 1;
+        tempA = (int16_t)rt0 << 1;
+    } else {
+        tempD = ((int16_t)rt3 >> (rs2_0 - 1)) + 1;
+        tempC = ((int16_t)rt2 >> (rs2_0 - 1)) + 1;
+        tempB = ((int16_t)rt1 >> (rs2_0 - 1)) + 1;
+        tempA = ((int16_t)rt0 >> (rs2_0 - 1)) + 1;
+    }
+
+    rd = ((uint32_t)((tempD >> 1) & 0x00FF) << 24) | \
+         ((uint32_t)((tempC >> 1) & 0x00FF) << 16) | \
+         ((uint32_t)((tempB >> 1) & 0x00FF) <<  8) | \
+         (uint32_t)((tempA >> 1) & 0x00FF) ;
+
+    return rd;
+}
+
+uint32_t helper_shrlph(int sa, uint32_t rt)
+{
+    uint16_t rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+    tempB = rth >> sa;
+    tempA = rtl >> sa;
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_shrlvph(uint32_t rs, uint32_t rt)
+{
+    uint8_t  rs3_0;
+    uint16_t rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rs3_0 = rs & 0x0F;
+    rth   = (rt & MIPSDSP_HI) >> 16;
+    rtl   =  rt & MIPSDSP_LO;
+
+    tempB = rth >> rs3_0;
+    tempA = rtl >> rs3_0;
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_subqhph(uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl;
+    uint16_t rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+    tempB = mipsdsp_rshift1_sub_q16(rsh, rth);
+    tempA = mipsdsp_rshift1_sub_q16(rsl, rtl);
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_subqhrph(uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl;
+    uint16_t rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+    tempB = mipsdsp_rrshift1_sub_q16(rsh, rth);
+    tempA = mipsdsp_rrshift1_sub_q16(rsl, rtl);
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_subqhw(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+
+    rd = mipsdsp_rshift1_sub_q32(rs, rt);
+
+    return rd;
+}
+
+uint32_t helper_subqhrw(uint32_t rs, uint32_t rt)
+{
+    uint32_t rd;
+
+    rd = mipsdsp_rrshift1_sub_q32(rs, rt);
+
+    return rd;
+}
+
+uint32_t helper_subuph(uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl, rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = mipsdsp_sub_u16_u16(rth, rsh);
+    tempA = mipsdsp_sub_u16_u16(rtl, rsl);
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+    return rd;
+}
+
+uint32_t helper_subusph(uint32_t rs, uint32_t rt)
+{
+    uint16_t rsh, rsl, rth, rtl;
+    uint16_t tempB, tempA;
+    uint32_t rd;
+
+    rsh = (rs & MIPSDSP_HI) >> 16;
+    rsl =  rs & MIPSDSP_LO;
+    rth = (rt & MIPSDSP_HI) >> 16;
+    rtl =  rt & MIPSDSP_LO;
+
+    tempB = mipsdsp_satu16_sub_u16_u16(rth, rsh);
+    tempA = mipsdsp_satu16_sub_u16_u16(rtl, rsl);
+    rd = ((uint32_t)tempB << 16) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_subuhqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs3, rs2, rs1, rs0;
+    uint8_t rt3, rt2, rt1, rt0;
+    uint8_t tempD, tempC, tempB, tempA;
+    uint32_t rd;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs1 = (rs & MIPSDSP_Q1) >>  8;
+    rs0 =  rs & MIPSDSP_Q0;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    tempD = ((uint16_t)rs3 - (uint16_t)rt3) >> 1;
+    tempC = ((uint16_t)rs2 - (uint16_t)rt2) >> 1;
+    tempB = ((uint16_t)rs1 - (uint16_t)rt1) >> 1;
+    tempA = ((uint16_t)rs0 - (uint16_t)rt0) >> 1;
+
+    rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+         ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+    return rd;
+}
+
+uint32_t helper_subuhrqb(uint32_t rs, uint32_t rt)
+{
+    uint8_t rs3, rs2, rs1, rs0;
+    uint8_t rt3, rt2, rt1, rt0;
+    uint8_t tempD, tempC, tempB, tempA;
+    uint32_t rd;
+
+    rs3 = (rs & MIPSDSP_Q3) >> 24;
+    rs2 = (rs & MIPSDSP_Q2) >> 16;
+    rs1 = (rs & MIPSDSP_Q1) >>  8;
+    rs0 =  rs & MIPSDSP_Q0;
+
+    rt3 = (rt & MIPSDSP_Q3) >> 24;
+    rt2 = (rt & MIPSDSP_Q2) >> 16;
+    rt1 = (rt & MIPSDSP_Q1) >>  8;
+    rt0 =  rt & MIPSDSP_Q0;
+
+    tempD = ((uint16_t)rs3 - (uint16_t)rt3 + 1) >> 1;
+    tempC = ((uint16_t)rs2 - (uint16_t)rt2 + 1) >> 1;
+    tempB = ((uint16_t)rs1 - (uint16_t)rt1 + 1) >> 1;
+    tempA = ((uint16_t)rs0 - (uint16_t)rt0 + 1) >> 1;
+
+    rd = ((uint32_t)tempD << 24) | ((uint32_t)tempC << 16) | \
+         ((uint32_t)tempB << 8) | (uint32_t)tempA;
+
+    return rd;
+}
+
+#undef MIPSDSP_LHI
+#undef MIPSDSP_LLO
+#undef MIPSDSP_HI
+#undef MIPSDSP_LO
+#undef MIPSDSP_Q0
+#undef MIPSDSP_Q1
+#undef MIPSDSP_Q2
+#undef MIPSDSP_Q3
+
-- 
1.7.5.4

  parent reply	other threads:[~2012-03-22 13:37 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-22 13:36 [Qemu-devel] [PATCH V2 0/4] MIPS ASE DSP Support for Qemu Jia Liu
2012-03-22 13:36 ` [Qemu-devel] [PATCH V2 1/4] add MIPS DSP helpers define Jia Liu
2012-03-22 13:36 ` Jia Liu [this message]
2012-03-22 13:54   ` [Qemu-devel] [PATCH V2 2/4] add MIPS DSP helpers implement Peter Maydell
2012-03-23  1:24     ` Jia Liu
2012-03-22 13:36 ` [Qemu-devel] [PATCH V2 3/4] add MIPS DSP translation Jia Liu
2012-03-22 13:36 ` [Qemu-devel] [PATCH V2 4/4] add MIPS DSP testcase Jia Liu
2012-03-22 14:01 ` [Qemu-devel] [PATCH V2 0/4] MIPS ASE DSP Support for Qemu Peter Maydell
2012-03-23  1:40   ` Jia Liu
2012-03-23  7:21   ` 陳韋任
2012-03-22 14:03 ` Peter Maydell
2012-03-23  1:31   ` Jia Liu
2012-03-23 16:01 ` Richard Henderson
2012-03-26  1:07   ` Jia Liu

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