* [Qemu-devel] [PULL 1/9] target-tricore: Add missing ULL suffix on 64 bit constant
2015-01-26 20:03 [Qemu-devel] [PULL 0/9] tricore patches Bastian Koppelmann
@ 2015-01-26 20:03 ` Bastian Koppelmann
2015-01-26 20:03 ` [Qemu-devel] [PULL 2/9] target-tricore: Several translator and cpu model fixes Bastian Koppelmann
` (8 subsequent siblings)
9 siblings, 0 replies; 13+ messages in thread
From: Bastian Koppelmann @ 2015-01-26 20:03 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell
From: Peter Maydell <peter.maydell@linaro.org>
Add a missing ULL suffix to a 64 bit constant: this suppresses a
compiler warning from mingw32 gcc.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
---
target-tricore/op_helper.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target-tricore/op_helper.c b/target-tricore/op_helper.c
index 13e2729..5704549 100644
--- a/target-tricore/op_helper.c
+++ b/target-tricore/op_helper.c
@@ -994,7 +994,7 @@ uint32_t helper_sha(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
} else if (shift_count > 0) {
result = t1 << shift_count;
/* calc carry */
- env->PSW_USB_C = ((result & 0xffffffff00000000) != 0);
+ env->PSW_USB_C = ((result & 0xffffffff00000000ULL) != 0);
/* calc v */
env->PSW_USB_V = (((result > 0x7fffffffLL) ||
(result < -0x80000000LL)) << 31);
--
2.2.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [Qemu-devel] [PULL 2/9] target-tricore: Several translator and cpu model fixes
2015-01-26 20:03 [Qemu-devel] [PULL 0/9] tricore patches Bastian Koppelmann
2015-01-26 20:03 ` [Qemu-devel] [PULL 1/9] target-tricore: Add missing ULL suffix on 64 bit constant Bastian Koppelmann
@ 2015-01-26 20:03 ` Bastian Koppelmann
2015-01-26 20:03 ` [Qemu-devel] [PULL 3/9] target-tricore: calculate av bits before saturation Bastian Koppelmann
` (7 subsequent siblings)
9 siblings, 0 replies; 13+ messages in thread
From: Bastian Koppelmann @ 2015-01-26 20:03 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell
Fix tc1796 cpu model using wrong ISA version.
Fix cond_add sometimes writing back wrong result.
Fix RCR_SEL and RCR_SELN using wrong registers for result and cond.
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
---
target-tricore/cpu.c | 2 +-
target-tricore/op_helper.c | 1 +
target-tricore/translate.c | 6 +++---
3 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/target-tricore/cpu.c b/target-tricore/cpu.c
index abe16fa..2ba0cf4 100644
--- a/target-tricore/cpu.c
+++ b/target-tricore/cpu.c
@@ -118,7 +118,7 @@ static void tc1796_initfn(Object *obj)
{
TriCoreCPU *cpu = TRICORE_CPU(obj);
- set_feature(&cpu->env, TRICORE_FEATURE_13);
+ set_feature(&cpu->env, TRICORE_FEATURE_131);
}
static void aurix_initfn(Object *obj)
diff --git a/target-tricore/op_helper.c b/target-tricore/op_helper.c
index 5704549..ec2a0cc 100644
--- a/target-tricore/op_helper.c
+++ b/target-tricore/op_helper.c
@@ -255,6 +255,7 @@ target_ulong helper_mul_suov(CPUTriCoreState *env, target_ulong r1,
int64_t t1 = extract64(r1, 0, 32);
int64_t t2 = extract64(r2, 0, 32);
int64_t result = t1 * t2;
+
return suov32(env, result);
}
diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index def7f4a..61518f3 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -745,7 +745,7 @@ static inline void gen_cond_add(TCGCond cond, TCGv r1, TCGv r2, TCGv r3,
tcg_gen_and_tl(temp, temp, mask);
tcg_gen_or_tl(cpu_PSW_SAV, temp, cpu_PSW_SAV);
/* write back result */
- tcg_gen_movcond_tl(cond, r3, r4, t0, result, r3);
+ tcg_gen_movcond_tl(cond, r3, r4, t0, result, r1);
tcg_temp_free(t0);
tcg_temp_free(temp);
@@ -3898,7 +3898,7 @@ static void decode_rcr_cond_select(CPUTriCoreState *env, DisasContext *ctx)
case OPC2_32_RCR_SEL:
temp = tcg_const_i32(0);
temp2 = tcg_const_i32(const9);
- tcg_gen_movcond_tl(TCG_COND_NE, cpu_gpr_d[r3], cpu_gpr_d[r4], temp,
+ tcg_gen_movcond_tl(TCG_COND_NE, cpu_gpr_d[r4], cpu_gpr_d[r3], temp,
cpu_gpr_d[r1], temp2);
tcg_temp_free(temp);
tcg_temp_free(temp2);
@@ -3906,7 +3906,7 @@ static void decode_rcr_cond_select(CPUTriCoreState *env, DisasContext *ctx)
case OPC2_32_RCR_SELN:
temp = tcg_const_i32(0);
temp2 = tcg_const_i32(const9);
- tcg_gen_movcond_tl(TCG_COND_EQ, cpu_gpr_d[r3], cpu_gpr_d[r4], temp,
+ tcg_gen_movcond_tl(TCG_COND_EQ, cpu_gpr_d[r4], cpu_gpr_d[r3], temp,
cpu_gpr_d[r1], temp2);
tcg_temp_free(temp);
tcg_temp_free(temp2);
--
2.2.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [Qemu-devel] [PULL 3/9] target-tricore: calculate av bits before saturation
2015-01-26 20:03 [Qemu-devel] [PULL 0/9] tricore patches Bastian Koppelmann
2015-01-26 20:03 ` [Qemu-devel] [PULL 1/9] target-tricore: Add missing ULL suffix on 64 bit constant Bastian Koppelmann
2015-01-26 20:03 ` [Qemu-devel] [PULL 2/9] target-tricore: Several translator and cpu model fixes Bastian Koppelmann
@ 2015-01-26 20:03 ` Bastian Koppelmann
2015-01-26 20:03 ` [Qemu-devel] [PULL 4/9] target-tricore: Fix bugs found by coverity Bastian Koppelmann
` (6 subsequent siblings)
9 siblings, 0 replies; 13+ messages in thread
From: Bastian Koppelmann @ 2015-01-26 20:03 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell
64 bit mac instructions calculated the av bits after the saturation, which
resulted in a wrong PSW. This moves the av bit calculation before the
saturation.
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
---
target-tricore/op_helper.c | 28 ++++++++++++++++------------
1 file changed, 16 insertions(+), 12 deletions(-)
diff --git a/target-tricore/op_helper.c b/target-tricore/op_helper.c
index ec2a0cc..dcc65b1 100644
--- a/target-tricore/op_helper.c
+++ b/target-tricore/op_helper.c
@@ -371,6 +371,10 @@ uint64_t helper_madd64_ssov(CPUTriCoreState *env, target_ulong r1,
ret = mul + r2;
ovf = (ret ^ mul) & ~(mul ^ r2);
+ t1 = ret >> 32;
+ env->PSW_USB_AV = t1 ^ t1 * 2u;
+ env->PSW_USB_SAV |= env->PSW_USB_AV;
+
if ((int64_t)ovf < 0) {
env->PSW_USB_V = (1 << 31);
env->PSW_USB_SV = (1 << 31);
@@ -384,9 +388,6 @@ uint64_t helper_madd64_ssov(CPUTriCoreState *env, target_ulong r1,
} else {
env->PSW_USB_V = 0;
}
- t1 = ret >> 32;
- env->PSW_USB_AV = t1 ^ t1 * 2u;
- env->PSW_USB_SAV |= env->PSW_USB_AV;
return ret;
}
@@ -401,6 +402,10 @@ uint64_t helper_madd64_suov(CPUTriCoreState *env, target_ulong r1,
mul = t1 * t3;
ret = mul + r2;
+ t1 = ret >> 32;
+ env->PSW_USB_AV = t1 ^ t1 * 2u;
+ env->PSW_USB_SAV |= env->PSW_USB_AV;
+
if (ret < r2) {
env->PSW_USB_V = (1 << 31);
env->PSW_USB_SV = (1 << 31);
@@ -409,9 +414,6 @@ uint64_t helper_madd64_suov(CPUTriCoreState *env, target_ulong r1,
} else {
env->PSW_USB_V = 0;
}
- t1 = ret >> 32;
- env->PSW_USB_AV = t1 ^ t1 * 2u;
- env->PSW_USB_SAV |= env->PSW_USB_AV;
return ret;
}
@@ -451,6 +453,10 @@ uint64_t helper_msub64_ssov(CPUTriCoreState *env, target_ulong r1,
ret = r2 - mul;
ovf = (ret ^ r2) & (mul ^ r2);
+ t1 = ret >> 32;
+ env->PSW_USB_AV = t1 ^ t1 * 2u;
+ env->PSW_USB_SAV |= env->PSW_USB_AV;
+
if ((int64_t)ovf < 0) {
env->PSW_USB_V = (1 << 31);
env->PSW_USB_SV = (1 << 31);
@@ -464,9 +470,6 @@ uint64_t helper_msub64_ssov(CPUTriCoreState *env, target_ulong r1,
} else {
env->PSW_USB_V = 0;
}
- t1 = ret >> 32;
- env->PSW_USB_AV = t1 ^ t1 * 2u;
- env->PSW_USB_SAV |= env->PSW_USB_AV;
return ret;
}
@@ -480,6 +483,10 @@ uint64_t helper_msub64_suov(CPUTriCoreState *env, target_ulong r1,
mul = t1 * t3;
ret = r2 - mul;
+ t1 = ret >> 32;
+ env->PSW_USB_AV = t1 ^ t1 * 2u;
+ env->PSW_USB_SAV |= env->PSW_USB_AV;
+
if (ret > r2) {
env->PSW_USB_V = (1 << 31);
env->PSW_USB_SV = (1 << 31);
@@ -488,9 +495,6 @@ uint64_t helper_msub64_suov(CPUTriCoreState *env, target_ulong r1,
} else {
env->PSW_USB_V = 0;
}
- t1 = ret >> 32;
- env->PSW_USB_AV = t1 ^ t1 * 2u;
- env->PSW_USB_SAV |= env->PSW_USB_AV;
return ret;
}
--
2.2.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [Qemu-devel] [PULL 4/9] target-tricore: Fix bugs found by coverity
2015-01-26 20:03 [Qemu-devel] [PULL 0/9] tricore patches Bastian Koppelmann
` (2 preceding siblings ...)
2015-01-26 20:03 ` [Qemu-devel] [PULL 3/9] target-tricore: calculate av bits before saturation Bastian Koppelmann
@ 2015-01-26 20:03 ` Bastian Koppelmann
2015-01-26 20:03 ` [Qemu-devel] [PULL 5/9] target-tricore: split up suov32 into suov32_pos and suov32_neg Bastian Koppelmann
` (5 subsequent siblings)
9 siblings, 0 replies; 13+ messages in thread
From: Bastian Koppelmann @ 2015-01-26 20:03 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell
This fixes one bug and one false positive found by coverity. The bug is,
that gen_mtcr was missing a mask to check the flag, which resulted in dead code.
The false positive is a intentional missing break for a jump and link address
insn followed by a jump and link insn. This adds a fall through comment to avoid
the false positive in the future.
Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
---
target-tricore/cpu.h | 1 +
target-tricore/translate.c | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/target-tricore/cpu.h b/target-tricore/cpu.h
index 7555b70..e5409e4 100644
--- a/target-tricore/cpu.h
+++ b/target-tricore/cpu.h
@@ -238,6 +238,7 @@ struct CPUTriCoreState {
#define MASK_LCX_LCXS 0x000f0000
#define MASK_LCX_LCX0 0x0000ffff
+#define TRICORE_HFLAG_KUU 0x3
#define TRICORE_HFLAG_UM0 0x00002 /* user mode-0 flag */
#define TRICORE_HFLAG_UM1 0x00001 /* user mode-1 flag */
#define TRICORE_HFLAG_SM 0x00000 /* kernel mode flag */
diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index 61518f3..57949fa 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -343,7 +343,7 @@ static inline void gen_mfcr(CPUTriCoreState *env, TCGv ret, int32_t offset)
static inline void gen_mtcr(CPUTriCoreState *env, DisasContext *ctx, TCGv r1,
int32_t offset)
{
- if (ctx->hflags & TRICORE_HFLAG_SM) {
+ if ((ctx->hflags & TRICORE_HFLAG_KUU) == TRICORE_HFLAG_SM) {
/* since we're caching PSW make this a special case */
if (offset == 0xfe04) {
gen_helper_psw_write(cpu_env, r1);
@@ -1647,6 +1647,7 @@ static void gen_compute_branch(DisasContext *ctx, uint32_t opc, int r1,
break;
case OPC1_32_B_JLA:
tcg_gen_movi_tl(cpu_gpr_a[11], ctx->next_pc);
+ /* fall through */
case OPC1_32_B_JA:
gen_goto_tb(ctx, 0, EA_B_ABSOLUT(offset));
break;
--
2.2.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [Qemu-devel] [PULL 5/9] target-tricore: split up suov32 into suov32_pos and suov32_neg
2015-01-26 20:03 [Qemu-devel] [PULL 0/9] tricore patches Bastian Koppelmann
` (3 preceding siblings ...)
2015-01-26 20:03 ` [Qemu-devel] [PULL 4/9] target-tricore: Fix bugs found by coverity Bastian Koppelmann
@ 2015-01-26 20:03 ` Bastian Koppelmann
2015-01-26 20:03 ` [Qemu-devel] [PULL 6/9] target-tricore: target-tricore: Add instructions of RR1 opcode format, that have 0x93 as first opcode Bastian Koppelmann
` (4 subsequent siblings)
9 siblings, 0 replies; 13+ messages in thread
From: Bastian Koppelmann @ 2015-01-26 20:03 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell
suov checks unsigned for an overflow and an underflow, after some arithmetic
operations and saturates the result to either max_uint32 or 0. So far we
handled this by expanding to the next bigger data type and compare whether
the result is > max_uint32 or < 0.
However this approach can fail for an 32 bit multiplication, if both operands of
the multiplication are 0x80000000. This sets the sign bit of the 64 bit integer
and would result in a false saturation to 0.
Since unsigned operations, e.g add, sub, mul always result in either a positive
or negative overflow, we split the functions for suov32 up into two functions
(suov32_pos, suov32_neg) for each case.
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
---
target-tricore/op_helper.c | 41 ++++++++++++++++++++++++++---------------
1 file changed, 26 insertions(+), 15 deletions(-)
diff --git a/target-tricore/op_helper.c b/target-tricore/op_helper.c
index dcc65b1..254135e 100644
--- a/target-tricore/op_helper.c
+++ b/target-tricore/op_helper.c
@@ -80,29 +80,40 @@ static uint32_t ssov32(CPUTriCoreState *env, int64_t arg)
return ret;
}
-static uint32_t suov32(CPUTriCoreState *env, int64_t arg)
+static uint32_t suov32_pos(CPUTriCoreState *env, uint64_t arg)
{
uint32_t ret;
- int64_t max_pos = UINT32_MAX;
+ uint64_t max_pos = UINT32_MAX;
if (arg > max_pos) {
env->PSW_USB_V = (1 << 31);
env->PSW_USB_SV = (1 << 31);
ret = (target_ulong)max_pos;
} else {
- if (arg < 0) {
- env->PSW_USB_V = (1 << 31);
- env->PSW_USB_SV = (1 << 31);
- ret = 0;
- } else {
- env->PSW_USB_V = 0;
- ret = (target_ulong)arg;
- }
+ env->PSW_USB_V = 0;
+ ret = (target_ulong)arg;
}
env->PSW_USB_AV = arg ^ arg * 2u;
env->PSW_USB_SAV |= env->PSW_USB_AV;
return ret;
}
+static uint32_t suov32_neg(CPUTriCoreState *env, int64_t arg)
+{
+ uint32_t ret;
+
+ if (arg < 0) {
+ env->PSW_USB_V = (1 << 31);
+ env->PSW_USB_SV = (1 << 31);
+ ret = 0;
+ } else {
+ env->PSW_USB_V = 0;
+ ret = (target_ulong)arg;
+ }
+ env->PSW_USB_AV = arg ^ arg * 2u;
+ env->PSW_USB_SAV |= env->PSW_USB_AV;
+ return ret;
+}
+
static uint32_t ssov16(CPUTriCoreState *env, int32_t hw0, int32_t hw1)
{
int32_t max_pos = INT16_MAX;
@@ -189,7 +200,7 @@ target_ulong helper_add_suov(CPUTriCoreState *env, target_ulong r1,
int64_t t1 = extract64(r1, 0, 32);
int64_t t2 = extract64(r2, 0, 32);
int64_t result = t1 + t2;
- return suov32(env, result);
+ return suov32_pos(env, result);
}
target_ulong helper_add_h_suov(CPUTriCoreState *env, target_ulong r1,
@@ -227,7 +238,7 @@ target_ulong helper_sub_suov(CPUTriCoreState *env, target_ulong r1,
int64_t t1 = extract64(r1, 0, 32);
int64_t t2 = extract64(r2, 0, 32);
int64_t result = t1 - t2;
- return suov32(env, result);
+ return suov32_neg(env, result);
}
target_ulong helper_sub_h_suov(CPUTriCoreState *env, target_ulong r1,
@@ -256,7 +267,7 @@ target_ulong helper_mul_suov(CPUTriCoreState *env, target_ulong r1,
int64_t t2 = extract64(r2, 0, 32);
int64_t result = t1 * t2;
- return suov32(env, result);
+ return suov32_pos(env, result);
}
target_ulong helper_sha_ssov(CPUTriCoreState *env, target_ulong r1,
@@ -356,7 +367,7 @@ target_ulong helper_madd32_suov(CPUTriCoreState *env, target_ulong r1,
int64_t result;
result = t2 + (t1 * t3);
- return suov32(env, result);
+ return suov32_pos(env, result);
}
uint64_t helper_madd64_ssov(CPUTriCoreState *env, target_ulong r1,
@@ -438,7 +449,7 @@ target_ulong helper_msub32_suov(CPUTriCoreState *env, target_ulong r1,
int64_t result;
result = t2 - (t1 * t3);
- return suov32(env, result);
+ return suov32_neg(env, result);
}
uint64_t helper_msub64_ssov(CPUTriCoreState *env, target_ulong r1,
--
2.2.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [Qemu-devel] [PULL 6/9] target-tricore: target-tricore: Add instructions of RR1 opcode format, that have 0x93 as first opcode
2015-01-26 20:03 [Qemu-devel] [PULL 0/9] tricore patches Bastian Koppelmann
` (4 preceding siblings ...)
2015-01-26 20:03 ` [Qemu-devel] [PULL 5/9] target-tricore: split up suov32 into suov32_pos and suov32_neg Bastian Koppelmann
@ 2015-01-26 20:03 ` Bastian Koppelmann
2015-01-26 20:03 ` [Qemu-devel] [PULL 7/9] target-tricore: Add instructions of RR2 opcode format Bastian Koppelmann
` (3 subsequent siblings)
9 siblings, 0 replies; 13+ messages in thread
From: Bastian Koppelmann @ 2015-01-26 20:03 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
---
target-tricore/translate.c | 182 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 182 insertions(+)
diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index 57949fa..7382193 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -987,6 +987,119 @@ static inline void gen_maddsui_32(TCGv ret, TCGv r1, TCGv r2, int32_t con)
tcg_temp_free(temp);
}
+static void
+gen_mul_q(TCGv rl, TCGv rh, TCGv arg1, TCGv arg2, uint32_t n, uint32_t up_shift)
+{
+ TCGv temp = tcg_temp_new();
+ TCGv_i64 temp_64 = tcg_temp_new_i64();
+ TCGv_i64 temp2_64 = tcg_temp_new_i64();
+
+ if (n == 0) {
+ if ((up_shift == 32)) {
+ tcg_gen_muls2_tl(rh, rl, arg1, arg2);
+ } else if (up_shift == 16) {
+ tcg_gen_ext_i32_i64(temp_64, arg1);
+ tcg_gen_ext_i32_i64(temp2_64, arg2);
+
+ tcg_gen_mul_i64(temp_64, temp_64, temp2_64);
+ tcg_gen_shri_i64(temp_64, temp_64, up_shift);
+ tcg_gen_extr_i64_i32(rl, rh, temp_64);
+ } else {
+ tcg_gen_muls2_tl(rl, rh, arg1, arg2);
+ }
+ /* reset v bit */
+ tcg_gen_movi_tl(cpu_PSW_V, 0);
+ } else { /* n is exspected to be 1 */
+ tcg_gen_ext_i32_i64(temp_64, arg1);
+ tcg_gen_ext_i32_i64(temp2_64, arg2);
+
+ tcg_gen_mul_i64(temp_64, temp_64, temp2_64);
+
+ if (up_shift == 0) {
+ tcg_gen_shli_i64(temp_64, temp_64, 1);
+ } else {
+ tcg_gen_shri_i64(temp_64, temp_64, up_shift - 1);
+ }
+ tcg_gen_extr_i64_i32(rl, rh, temp_64);
+ /* overflow only occours if r1 = r2 = 0x8000 */
+ if (up_shift == 0) {/* result is 64 bit */
+ tcg_gen_setcondi_tl(TCG_COND_EQ, cpu_PSW_V, rh,
+ 0x80000000);
+ } else { /* result is 32 bit */
+ tcg_gen_setcondi_tl(TCG_COND_EQ, cpu_PSW_V, rl,
+ 0x80000000);
+ }
+ tcg_gen_shli_tl(cpu_PSW_V, cpu_PSW_V, 31);
+ /* calc sv overflow bit */
+ tcg_gen_or_tl(cpu_PSW_SV, cpu_PSW_SV, cpu_PSW_V);
+ }
+ /* calc av overflow bit */
+ if (up_shift == 0) {
+ tcg_gen_add_tl(cpu_PSW_AV, rh, rh);
+ tcg_gen_xor_tl(cpu_PSW_AV, rh, cpu_PSW_AV);
+ } else {
+ tcg_gen_add_tl(cpu_PSW_AV, rl, rl);
+ tcg_gen_xor_tl(cpu_PSW_AV, rl, cpu_PSW_AV);
+ }
+ /* calc sav overflow bit */
+ tcg_gen_or_tl(cpu_PSW_SAV, cpu_PSW_SAV, cpu_PSW_AV);
+ tcg_temp_free(temp);
+ tcg_temp_free_i64(temp_64);
+ tcg_temp_free_i64(temp2_64);
+}
+
+static void
+gen_mul_q_16(TCGv ret, TCGv arg1, TCGv arg2, uint32_t n)
+{
+ TCGv temp = tcg_temp_new();
+ if (n == 0) {
+ tcg_gen_mul_tl(ret, arg1, arg2);
+ } else { /* n is exspected to be 1 */
+ tcg_gen_mul_tl(ret, arg1, arg2);
+ tcg_gen_shli_tl(ret, ret, 1);
+ /* catch special case r1 = r2 = 0x8000 */
+ tcg_gen_setcondi_tl(TCG_COND_EQ, temp, ret, 0x80000000);
+ tcg_gen_sub_tl(ret, ret, temp);
+ }
+ /* reset v bit */
+ tcg_gen_movi_tl(cpu_PSW_V, 0);
+ /* calc av overflow bit */
+ tcg_gen_add_tl(cpu_PSW_AV, ret, ret);
+ tcg_gen_xor_tl(cpu_PSW_AV, ret, cpu_PSW_AV);
+ /* calc sav overflow bit */
+ tcg_gen_or_tl(cpu_PSW_SAV, cpu_PSW_SAV, cpu_PSW_AV);
+
+ tcg_temp_free(temp);
+}
+
+static void gen_mulr_q(TCGv ret, TCGv arg1, TCGv arg2, uint32_t n)
+{
+ TCGv temp = tcg_temp_new();
+ if (n == 0) {
+ tcg_gen_mul_tl(ret, arg1, arg2);
+ tcg_gen_addi_tl(ret, ret, 0x8000);
+ } else {
+ tcg_gen_mul_tl(ret, arg1, arg2);
+ tcg_gen_shli_tl(ret, ret, 1);
+ tcg_gen_addi_tl(ret, ret, 0x8000);
+ /* catch special case r1 = r2 = 0x8000 */
+ tcg_gen_setcondi_tl(TCG_COND_EQ, temp, ret, 0x80008000);
+ tcg_gen_muli_tl(temp, temp, 0x8001);
+ tcg_gen_sub_tl(ret, ret, temp);
+ }
+ /* reset v bit */
+ tcg_gen_movi_tl(cpu_PSW_V, 0);
+ /* calc av overflow bit */
+ tcg_gen_add_tl(cpu_PSW_AV, ret, ret);
+ tcg_gen_xor_tl(cpu_PSW_AV, ret, cpu_PSW_AV);
+ /* calc sav overflow bit */
+ tcg_gen_or_tl(cpu_PSW_SAV, cpu_PSW_SAV, cpu_PSW_AV);
+ /* cut halfword off */
+ tcg_gen_andi_tl(ret, ret, 0xffff0000);
+
+ tcg_temp_free(temp);
+}
+
static inline void
gen_maddsi_64(TCGv ret_low, TCGv ret_high, TCGv r1, TCGv r2_low, TCGv r2_high,
int32_t con)
@@ -4779,6 +4892,72 @@ static void decode_rr1_mul(CPUTriCoreState *env, DisasContext *ctx)
tcg_temp_free(n);
}
+static void decode_rr1_mulq(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+ int r1, r2, r3;
+ uint32_t n;
+
+ TCGv temp, temp2;
+
+ r1 = MASK_OP_RR1_S1(ctx->opcode);
+ r2 = MASK_OP_RR1_S2(ctx->opcode);
+ r3 = MASK_OP_RR1_D(ctx->opcode);
+ n = MASK_OP_RR1_N(ctx->opcode);
+ op2 = MASK_OP_RR1_OP2(ctx->opcode);
+
+ temp = tcg_temp_new();
+ temp2 = tcg_temp_new();
+
+ switch (op2) {
+ case OPC2_32_RR1_MUL_Q_32:
+ gen_mul_q(cpu_gpr_d[r3], temp, cpu_gpr_d[r1], cpu_gpr_d[r2], n, 32);
+ break;
+ case OPC2_32_RR1_MUL_Q_64:
+ gen_mul_q(cpu_gpr_d[r3], cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ n, 0);
+ break;
+ case OPC2_32_RR1_MUL_Q_32_L:
+ tcg_gen_ext16s_tl(temp, cpu_gpr_d[r2]);
+ gen_mul_q(cpu_gpr_d[r3], temp, cpu_gpr_d[r1], temp, n, 16);
+ break;
+ case OPC2_32_RR1_MUL_Q_64_L:
+ tcg_gen_ext16s_tl(temp, cpu_gpr_d[r2]);
+ gen_mul_q(cpu_gpr_d[r3], cpu_gpr_d[r3+1], cpu_gpr_d[r1], temp, n, 0);
+ break;
+ case OPC2_32_RR1_MUL_Q_32_U:
+ tcg_gen_sari_tl(temp, cpu_gpr_d[r2], 16);
+ gen_mul_q(cpu_gpr_d[r3], temp, cpu_gpr_d[r1], temp, n, 16);
+ break;
+ case OPC2_32_RR1_MUL_Q_64_U:
+ tcg_gen_sari_tl(temp, cpu_gpr_d[r2], 16);
+ gen_mul_q(cpu_gpr_d[r3], cpu_gpr_d[r3+1], cpu_gpr_d[r1], temp, n, 0);
+ break;
+ case OPC2_32_RR1_MUL_Q_32_LL:
+ tcg_gen_ext16s_tl(temp, cpu_gpr_d[r1]);
+ tcg_gen_ext16s_tl(temp2, cpu_gpr_d[r2]);
+ gen_mul_q_16(cpu_gpr_d[r3], temp, temp2, n);
+ break;
+ case OPC2_32_RR1_MUL_Q_32_UU:
+ tcg_gen_sari_tl(temp, cpu_gpr_d[r1], 16);
+ tcg_gen_sari_tl(temp2, cpu_gpr_d[r2], 16);
+ gen_mul_q_16(cpu_gpr_d[r3], temp, temp2, n);
+ break;
+ case OPC2_32_RR1_MULR_Q_32_L:
+ tcg_gen_ext16s_tl(temp, cpu_gpr_d[r1]);
+ tcg_gen_ext16s_tl(temp2, cpu_gpr_d[r2]);
+ gen_mulr_q(cpu_gpr_d[r3], temp, temp2, n);
+ break;
+ case OPC2_32_RR1_MULR_Q_32_U:
+ tcg_gen_sari_tl(temp, cpu_gpr_d[r1], 16);
+ tcg_gen_sari_tl(temp2, cpu_gpr_d[r2], 16);
+ gen_mulr_q(cpu_gpr_d[r3], temp, temp2, n);
+ break;
+ }
+ tcg_temp_free(temp);
+ tcg_temp_free(temp2);
+}
+
static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{
int op1;
@@ -5036,6 +5215,9 @@ static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
case OPCM_32_RR1_MUL:
decode_rr1_mul(env, ctx);
break;
+ case OPCM_32_RR1_MULQ:
+ decode_rr1_mulq(env, ctx);
+ break;
}
}
--
2.2.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [Qemu-devel] [PULL 7/9] target-tricore: Add instructions of RR2 opcode format
2015-01-26 20:03 [Qemu-devel] [PULL 0/9] tricore patches Bastian Koppelmann
` (5 preceding siblings ...)
2015-01-26 20:03 ` [Qemu-devel] [PULL 6/9] target-tricore: target-tricore: Add instructions of RR1 opcode format, that have 0x93 as first opcode Bastian Koppelmann
@ 2015-01-26 20:03 ` Bastian Koppelmann
2015-01-26 20:03 ` [Qemu-devel] [PULL 8/9] target-tricore: Add instructions of RRPW " Bastian Koppelmann
` (2 subsequent siblings)
9 siblings, 0 replies; 13+ messages in thread
From: Bastian Koppelmann @ 2015-01-26 20:03 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
---
target-tricore/translate.c | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index 7382193..d5c07b2 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -4958,6 +4958,39 @@ static void decode_rr1_mulq(CPUTriCoreState *env, DisasContext *ctx)
tcg_temp_free(temp2);
}
+/* RR2 format */
+static void decode_rr2_mul(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+ int r1, r2, r3;
+
+ op2 = MASK_OP_RR2_OP2(ctx->opcode);
+ r1 = MASK_OP_RR2_S1(ctx->opcode);
+ r2 = MASK_OP_RR2_S2(ctx->opcode);
+ r3 = MASK_OP_RR2_D(ctx->opcode);
+ switch (op2) {
+ case OPC2_32_RR2_MUL_32:
+ gen_mul_i32s(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2]);
+ break;
+ case OPC2_32_RR2_MUL_64:
+ gen_mul_i64s(cpu_gpr_d[r3], cpu_gpr_d[r3+1], cpu_gpr_d[r1],
+ cpu_gpr_d[r2]);
+ break;
+ case OPC2_32_RR2_MULS_32:
+ gen_helper_mul_ssov(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1],
+ cpu_gpr_d[r2]);
+ break;
+ case OPC2_32_RR2_MUL_U_64:
+ gen_mul_i64u(cpu_gpr_d[r3], cpu_gpr_d[r3+1], cpu_gpr_d[r1],
+ cpu_gpr_d[r2]);
+ break;
+ case OPC2_32_RR2_MULS_U_32:
+ gen_helper_mul_suov(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1],
+ cpu_gpr_d[r2]);
+ break;
+ }
+}
+
static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{
int op1;
@@ -5218,6 +5251,10 @@ static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
case OPCM_32_RR1_MULQ:
decode_rr1_mulq(env, ctx);
break;
+/* RR2 format */
+ case OPCM_32_RR2_MUL:
+ decode_rr2_mul(env, ctx);
+ break;
}
}
--
2.2.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [Qemu-devel] [PULL 8/9] target-tricore: Add instructions of RRPW opcode format
2015-01-26 20:03 [Qemu-devel] [PULL 0/9] tricore patches Bastian Koppelmann
` (6 preceding siblings ...)
2015-01-26 20:03 ` [Qemu-devel] [PULL 7/9] target-tricore: Add instructions of RR2 opcode format Bastian Koppelmann
@ 2015-01-26 20:03 ` Bastian Koppelmann
2015-01-26 20:03 ` [Qemu-devel] [PULL 9/9] target-tricore: Add instructions of RRR " Bastian Koppelmann
2015-01-27 10:40 ` [Qemu-devel] [PULL 0/9] tricore patches Peter Maydell
9 siblings, 0 replies; 13+ messages in thread
From: Bastian Koppelmann @ 2015-01-26 20:03 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
---
target-tricore/translate.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 70 insertions(+)
diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index d5c07b2..2cdc996 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -4991,6 +4991,57 @@ static void decode_rr2_mul(CPUTriCoreState *env, DisasContext *ctx)
}
}
+/* RRPW format */
+static void decode_rrpw_extract_insert(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+ int r1, r2, r3;
+ int32_t pos, width;
+
+ op2 = MASK_OP_RRPW_OP2(ctx->opcode);
+ r1 = MASK_OP_RRPW_S1(ctx->opcode);
+ r2 = MASK_OP_RRPW_S2(ctx->opcode);
+ r3 = MASK_OP_RRPW_D(ctx->opcode);
+ pos = MASK_OP_RRPW_POS(ctx->opcode);
+ width = MASK_OP_RRPW_WIDTH(ctx->opcode);
+
+ switch (op2) {
+ case OPC2_32_RRPW_EXTR:
+ if (pos + width <= 31) {
+ /* optimize special cases */
+ if ((pos == 0) && (width == 8)) {
+ tcg_gen_ext8s_tl(cpu_gpr_d[r3], cpu_gpr_d[r1]);
+ } else if ((pos == 0) && (width == 16)) {
+ tcg_gen_ext16s_tl(cpu_gpr_d[r3], cpu_gpr_d[r1]);
+ } else {
+ tcg_gen_shli_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], 32 - pos - width);
+ tcg_gen_sari_tl(cpu_gpr_d[r3], cpu_gpr_d[r3], 32 - width);
+ }
+ }
+ break;
+ case OPC2_32_RRPW_EXTR_U:
+ if (width == 0) {
+ tcg_gen_movi_tl(cpu_gpr_d[r3], 0);
+ } else {
+ tcg_gen_shri_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], pos);
+ tcg_gen_andi_tl(cpu_gpr_d[r3], cpu_gpr_d[r3], ~0u >> (32-width));
+ }
+ break;
+ case OPC2_32_RRPW_IMASK:
+ if (pos + width <= 31) {
+ tcg_gen_movi_tl(cpu_gpr_d[r3+1], ((1u << width) - 1) << pos);
+ tcg_gen_shli_tl(cpu_gpr_d[r3], cpu_gpr_d[r2], pos);
+ }
+ break;
+ case OPC2_32_RRPW_INSERT:
+ if (pos + width <= 31) {
+ tcg_gen_deposit_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ width, pos);
+ }
+ break;
+ }
+}
+
static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{
int op1;
@@ -5255,6 +5306,25 @@ static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
case OPCM_32_RR2_MUL:
decode_rr2_mul(env, ctx);
break;
+/* RRPW format */
+ case OPCM_32_RRPW_EXTRACT_INSERT:
+ decode_rrpw_extract_insert(env, ctx);
+ break;
+ case OPC1_32_RRPW_DEXTR:
+ r1 = MASK_OP_RRPW_S1(ctx->opcode);
+ r2 = MASK_OP_RRPW_S2(ctx->opcode);
+ r3 = MASK_OP_RRPW_D(ctx->opcode);
+ const16 = MASK_OP_RRPW_POS(ctx->opcode);
+ if (r1 == r2) {
+ tcg_gen_rotli_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], const16);
+ } else {
+ temp = tcg_temp_new();
+ tcg_gen_shli_tl(cpu_gpr_d[r3], cpu_gpr_d[r2], const16);
+ tcg_gen_shri_tl(temp, cpu_gpr_d[r1], 32 - const16);
+ tcg_gen_or_tl(cpu_gpr_d[r3], cpu_gpr_d[r3], temp);
+ tcg_temp_free(temp);
+ }
+ break;
}
}
--
2.2.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [Qemu-devel] [PULL 9/9] target-tricore: Add instructions of RRR opcode format
2015-01-26 20:03 [Qemu-devel] [PULL 0/9] tricore patches Bastian Koppelmann
` (7 preceding siblings ...)
2015-01-26 20:03 ` [Qemu-devel] [PULL 8/9] target-tricore: Add instructions of RRPW " Bastian Koppelmann
@ 2015-01-26 20:03 ` Bastian Koppelmann
2015-01-27 10:40 ` [Qemu-devel] [PULL 0/9] tricore patches Peter Maydell
9 siblings, 0 replies; 13+ messages in thread
From: Bastian Koppelmann @ 2015-01-26 20:03 UTC (permalink / raw)
To: qemu-devel; +Cc: peter.maydell
Add microcode generator function gen_cond_sub.
Add helper functions:
* ixmax/ixmin: search for the max/min value and its related index in a
vector of 16-bit values.
* pack: dack two data registers into an IEEE-754 single precision floating
point format number.
* dvadj: divide-adjust the result after dvstep instructions.
* dvstep: divide a reg by a divisor, producing 8-bits of quotient at a time.
OPCM_32_RRR_FLOAT -> OPCM_32_RRR_DIVIDE
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
---
target-tricore/helper.h | 8 ++
target-tricore/op_helper.c | 160 +++++++++++++++++++++++++++++++++++++++
target-tricore/translate.c | 150 ++++++++++++++++++++++++++++++++++++
target-tricore/tricore-opcodes.h | 2 +-
4 files changed, 319 insertions(+), 1 deletion(-)
diff --git a/target-tricore/helper.h b/target-tricore/helper.h
index 068dc7b..7405fee 100644
--- a/target-tricore/helper.h
+++ b/target-tricore/helper.h
@@ -60,10 +60,14 @@ DEF_HELPER_FLAGS_2(max_b, TCG_CALL_NO_RWG_SE, i32, i32, i32)
DEF_HELPER_FLAGS_2(max_bu, TCG_CALL_NO_RWG_SE, i32, i32, i32)
DEF_HELPER_FLAGS_2(max_h, TCG_CALL_NO_RWG_SE, i32, i32, i32)
DEF_HELPER_FLAGS_2(max_hu, TCG_CALL_NO_RWG_SE, i32, i32, i32)
+DEF_HELPER_FLAGS_2(ixmax, TCG_CALL_NO_RWG_SE, i64, i64, i32)
+DEF_HELPER_FLAGS_2(ixmax_u, TCG_CALL_NO_RWG_SE, i64, i64, i32)
DEF_HELPER_FLAGS_2(min_b, TCG_CALL_NO_RWG_SE, i32, i32, i32)
DEF_HELPER_FLAGS_2(min_bu, TCG_CALL_NO_RWG_SE, i32, i32, i32)
DEF_HELPER_FLAGS_2(min_h, TCG_CALL_NO_RWG_SE, i32, i32, i32)
DEF_HELPER_FLAGS_2(min_hu, TCG_CALL_NO_RWG_SE, i32, i32, i32)
+DEF_HELPER_FLAGS_2(ixmin, TCG_CALL_NO_RWG_SE, i64, i64, i32)
+DEF_HELPER_FLAGS_2(ixmin_u, TCG_CALL_NO_RWG_SE, i64, i64, i32)
/* count leading ... */
DEF_HELPER_FLAGS_1(clo, TCG_CALL_NO_RWG_SE, i32, i32)
DEF_HELPER_FLAGS_1(clo_h, TCG_CALL_NO_RWG_SE, i32, i32)
@@ -81,12 +85,16 @@ DEF_HELPER_FLAGS_2(bmerge, TCG_CALL_NO_RWG_SE, i32, i32, i32)
DEF_HELPER_FLAGS_1(bsplit, TCG_CALL_NO_RWG_SE, i64, i32)
DEF_HELPER_FLAGS_1(parity, TCG_CALL_NO_RWG_SE, i32, i32)
/* float */
+DEF_HELPER_FLAGS_4(pack, TCG_CALL_NO_RWG_SE, i32, i32, i32, i32, i32)
DEF_HELPER_1(unpack, i64, i32)
/* dvinit */
DEF_HELPER_3(dvinit_b_13, i64, env, i32, i32)
DEF_HELPER_3(dvinit_b_131, i64, env, i32, i32)
DEF_HELPER_3(dvinit_h_13, i64, env, i32, i32)
DEF_HELPER_3(dvinit_h_131, i64, env, i32, i32)
+DEF_HELPER_FLAGS_2(dvadj, TCG_CALL_NO_RWG_SE, i64, i64, i32)
+DEF_HELPER_FLAGS_2(dvstep, TCG_CALL_NO_RWG_SE, i64, i64, i32)
+DEF_HELPER_FLAGS_2(dvstep_u, TCG_CALL_NO_RWG_SE, i64, i64, i32)
/* mulh */
DEF_HELPER_FLAGS_5(mul_h, TCG_CALL_NO_RWG_SE, i64, i32, i32, i32, i32, i32)
DEF_HELPER_FLAGS_5(mulm_h, TCG_CALL_NO_RWG_SE, i64, i32, i32, i32, i32, i32)
diff --git a/target-tricore/op_helper.c b/target-tricore/op_helper.c
index 254135e..ed26b30 100644
--- a/target-tricore/op_helper.c
+++ b/target-tricore/op_helper.c
@@ -883,6 +883,50 @@ uint32_t helper_##name ##_hu(target_ulong r1, target_ulong r2)\
\
return ret; \
} \
+ \
+uint64_t helper_ix##name(uint64_t r1, uint32_t r2) \
+{ \
+ int64_t r2l, r2h, r1hl; \
+ uint64_t ret = 0; \
+ \
+ ret = ((r1 + 2) & 0xffff); \
+ r2l = sextract64(r2, 0, 16); \
+ r2h = sextract64(r2, 16, 16); \
+ r1hl = sextract64(r1, 32, 16); \
+ \
+ if ((r2l op ## = r2h) && (r2l op r1hl)) { \
+ ret |= (r2l & 0xffff) << 32; \
+ ret |= extract64(r1, 0, 16) << 16; \
+ } else if ((r2h op r2l) && (r2h op r1hl)) { \
+ ret |= extract64(r2, 16, 16) << 32; \
+ ret |= extract64(r1 + 1, 0, 16) << 16; \
+ } else { \
+ ret |= r1 & 0xffffffff0000ull; \
+ } \
+ return ret; \
+} \
+ \
+uint64_t helper_ix##name ##_u(uint64_t r1, uint32_t r2) \
+{ \
+ int64_t r2l, r2h, r1hl; \
+ uint64_t ret = 0; \
+ \
+ ret = ((r1 + 2) & 0xffff); \
+ r2l = extract64(r2, 0, 16); \
+ r2h = extract64(r2, 16, 16); \
+ r1hl = extract64(r1, 32, 16); \
+ \
+ if ((r2l op ## = r2h) && (r2l op r1hl)) { \
+ ret |= (r2l & 0xffff) << 32; \
+ ret |= extract64(r1, 0, 16) << 16; \
+ } else if ((r2h op r2l) && (r2h op r1hl)) { \
+ ret |= extract64(r2, 16, 16) << 32; \
+ ret |= extract64(r1 + 1, 0, 16) << 16; \
+ } else { \
+ ret |= r1 & 0xffffffff0000ull; \
+ } \
+ return ret; \
+}
EXTREMA_H_B(max, >)
EXTREMA_H_B(min, <)
@@ -1116,6 +1160,48 @@ uint32_t helper_parity(target_ulong r1)
return ret;
}
+uint32_t helper_pack(uint32_t carry, uint32_t r1_low, uint32_t r1_high,
+ target_ulong r2)
+{
+ uint32_t ret;
+ int32_t fp_exp, fp_frac, temp_exp, fp_exp_frac;
+ int32_t int_exp = r1_high;
+ int32_t int_mant = r1_low;
+ uint32_t flag_rnd = (int_mant & (1 << 7)) && (
+ (int_mant & (1 << 8)) ||
+ (int_mant & 0x7f) ||
+ (carry != 0));
+ if (((int_mant & (1<<31)) == 0) && (int_exp == 255)) {
+ fp_exp = 255;
+ fp_frac = extract32(int_mant, 8, 23);
+ } else if ((int_mant & (1<<31)) && (int_exp >= 127)) {
+ fp_exp = 255;
+ fp_frac = 0;
+ } else if ((int_mant & (1<<31)) && (int_exp <= -128)) {
+ fp_exp = 0;
+ fp_frac = 0;
+ } else if (int_mant == 0) {
+ fp_exp = 0;
+ fp_frac = 0;
+ } else {
+ if (((int_mant & (1 << 31)) == 0)) {
+ temp_exp = 0;
+ } else {
+ temp_exp = int_exp + 128;
+ }
+ fp_exp_frac = (((temp_exp & 0xff) << 23) |
+ extract32(int_mant, 8, 23))
+ + flag_rnd;
+ fp_exp = extract32(fp_exp_frac, 23, 8);
+ fp_frac = extract32(fp_exp_frac, 0, 23);
+ }
+ ret = r2 & (1 << 31);
+ ret = ret + (fp_exp << 23);
+ ret = ret + (fp_frac & 0x7fffff);
+
+ return ret;
+}
+
uint64_t helper_unpack(target_ulong arg1)
{
int32_t fp_exp = extract32(arg1, 23, 8);
@@ -1244,6 +1330,80 @@ uint64_t helper_dvinit_h_131(CPUTriCoreState *env, uint32_t r1, uint32_t r2)
return ret;
}
+uint64_t helper_dvadj(uint64_t r1, uint32_t r2)
+{
+ int32_t x_sign = (r1 >> 63);
+ int32_t q_sign = x_sign ^ (r2 >> 31);
+ int32_t eq_pos = x_sign & ((r1 >> 32) == r2);
+ int32_t eq_neg = x_sign & ((r1 >> 32) == -r2);
+ uint32_t quotient;
+ uint64_t ret, remainder;
+
+ if ((q_sign & ~eq_neg) | eq_pos) {
+ quotient = (r1 + 1) & 0xffffffff;
+ } else {
+ quotient = r1 & 0xffffffff;
+ }
+
+ if (eq_pos | eq_neg) {
+ remainder = 0;
+ } else {
+ remainder = (r1 & 0xffffffff00000000ull);
+ }
+ ret = remainder|quotient;
+ return ret;
+}
+
+uint64_t helper_dvstep(uint64_t r1, uint32_t r2)
+{
+ int32_t dividend_sign = extract64(r1, 63, 1);
+ int32_t divisor_sign = extract32(r2, 31, 1);
+ int32_t quotient_sign = (dividend_sign != divisor_sign);
+ int32_t addend, dividend_quotient, remainder;
+ int32_t i, temp;
+
+ if (quotient_sign) {
+ addend = r2;
+ } else {
+ addend = -r2;
+ }
+ dividend_quotient = (int32_t)r1;
+ remainder = (int32_t)(r1 >> 32);
+
+ for (i = 0; i < 8; i++) {
+ remainder = (remainder << 1) | extract32(dividend_quotient, 31, 1);
+ dividend_quotient <<= 1;
+ temp = remainder + addend;
+ if ((temp < 0) == dividend_sign) {
+ remainder = temp;
+ }
+ if (((temp < 0) == dividend_sign)) {
+ dividend_quotient = dividend_quotient | !quotient_sign;
+ } else {
+ dividend_quotient = dividend_quotient | quotient_sign;
+ }
+ }
+ return ((uint64_t)remainder << 32) | (uint32_t)dividend_quotient;
+}
+
+uint64_t helper_dvstep_u(uint64_t r1, uint32_t r2)
+{
+ int32_t dividend_quotient = extract64(r1, 0, 32);
+ int64_t remainder = extract64(r1, 32, 32);
+ int32_t i;
+ int64_t temp;
+ for (i = 0; i < 8; i++) {
+ remainder = (remainder << 1) | extract32(dividend_quotient, 31, 1);
+ dividend_quotient <<= 1;
+ temp = (remainder & 0xffffffff) - r2;
+ if (temp >= 0) {
+ remainder = temp;
+ }
+ dividend_quotient = dividend_quotient | !(temp < 0);
+ }
+ return ((uint64_t)remainder << 32) | (uint32_t)dividend_quotient;
+}
+
uint64_t helper_mul_h(uint32_t arg00, uint32_t arg01,
uint32_t arg10, uint32_t arg11, uint32_t n)
{
diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index 2cdc996..ac52771 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -182,6 +182,18 @@ void tricore_cpu_dump_state(CPUState *cs, FILE *f,
tcg_temp_free(arg11); \
} while (0)
+#define GEN_HELPER_RRR(name, rl, rh, al1, ah1, arg2) do { \
+ TCGv_i64 ret = tcg_temp_new_i64(); \
+ TCGv_i64 arg1 = tcg_temp_new_i64(); \
+ \
+ tcg_gen_concat_i32_i64(arg1, al1, ah1); \
+ gen_helper_##name(ret, arg1, arg2); \
+ tcg_gen_extr_i64_i32(rl, rh, ret); \
+ \
+ tcg_temp_free_i64(ret); \
+ tcg_temp_free_i64(arg1); \
+} while (0)
+
#define EA_ABS_FORMAT(con) (((con & 0x3C000) << 14) + (con & 0x3FFF))
#define EA_B_ABSOLUT(con) (((offset & 0xf00000) << 8) | \
((offset & 0x0fffff) << 1))
@@ -820,6 +832,45 @@ static inline void gen_subc_CC(TCGv ret, TCGv r1, TCGv r2)
tcg_temp_free(temp);
}
+static inline void gen_cond_sub(TCGCond cond, TCGv r1, TCGv r2, TCGv r3,
+ TCGv r4)
+{
+ TCGv temp = tcg_temp_new();
+ TCGv temp2 = tcg_temp_new();
+ TCGv result = tcg_temp_new();
+ TCGv mask = tcg_temp_new();
+ TCGv t0 = tcg_const_i32(0);
+
+ /* create mask for sticky bits */
+ tcg_gen_setcond_tl(cond, mask, r4, t0);
+ tcg_gen_shli_tl(mask, mask, 31);
+
+ tcg_gen_sub_tl(result, r1, r2);
+ /* Calc PSW_V */
+ tcg_gen_xor_tl(temp, result, r1);
+ tcg_gen_xor_tl(temp2, r1, r2);
+ tcg_gen_and_tl(temp, temp, temp2);
+ tcg_gen_movcond_tl(cond, cpu_PSW_V, r4, t0, temp, cpu_PSW_V);
+ /* Set PSW_SV */
+ tcg_gen_and_tl(temp, temp, mask);
+ tcg_gen_or_tl(cpu_PSW_SV, temp, cpu_PSW_SV);
+ /* calc AV bit */
+ tcg_gen_add_tl(temp, result, result);
+ tcg_gen_xor_tl(temp, temp, result);
+ tcg_gen_movcond_tl(cond, cpu_PSW_AV, r4, t0, temp, cpu_PSW_AV);
+ /* calc SAV bit */
+ tcg_gen_and_tl(temp, temp, mask);
+ tcg_gen_or_tl(cpu_PSW_SAV, temp, cpu_PSW_SAV);
+ /* write back result */
+ tcg_gen_movcond_tl(cond, r3, r4, t0, result, r1);
+
+ tcg_temp_free(t0);
+ tcg_temp_free(temp);
+ tcg_temp_free(temp2);
+ tcg_temp_free(result);
+ tcg_temp_free(mask);
+}
+
static inline void gen_abs(TCGv ret, TCGv r1)
{
TCGv temp = tcg_temp_new();
@@ -5042,6 +5093,99 @@ static void decode_rrpw_extract_insert(CPUTriCoreState *env, DisasContext *ctx)
}
}
+/* RRR format */
+static void decode_rrr_cond_select(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+ int r1, r2, r3, r4;
+ TCGv temp;
+
+ op2 = MASK_OP_RRR_OP2(ctx->opcode);
+ r1 = MASK_OP_RRR_S1(ctx->opcode);
+ r2 = MASK_OP_RRR_S2(ctx->opcode);
+ r3 = MASK_OP_RRR_S3(ctx->opcode);
+ r4 = MASK_OP_RRR_D(ctx->opcode);
+
+ switch (op2) {
+ case OPC2_32_RRR_CADD:
+ gen_cond_add(TCG_COND_NE, cpu_gpr_d[r1], cpu_gpr_d[r2],
+ cpu_gpr_d[r4], cpu_gpr_d[r3]);
+ break;
+ case OPC2_32_RRR_CADDN:
+ gen_cond_add(TCG_COND_EQ, cpu_gpr_d[r1], cpu_gpr_d[r2], cpu_gpr_d[r4],
+ cpu_gpr_d[r3]);
+ break;
+ case OPC2_32_RRR_CSUB:
+ gen_cond_sub(TCG_COND_NE, cpu_gpr_d[r1], cpu_gpr_d[r2], cpu_gpr_d[r4],
+ cpu_gpr_d[r3]);
+ break;
+ case OPC2_32_RRR_CSUBN:
+ gen_cond_sub(TCG_COND_EQ, cpu_gpr_d[r1], cpu_gpr_d[r2], cpu_gpr_d[r4],
+ cpu_gpr_d[r3]);
+ break;
+ case OPC2_32_RRR_SEL:
+ temp = tcg_const_i32(0);
+ tcg_gen_movcond_tl(TCG_COND_NE, cpu_gpr_d[r4], cpu_gpr_d[r3], temp,
+ cpu_gpr_d[r1], cpu_gpr_d[r2]);
+ tcg_temp_free(temp);
+ break;
+ case OPC2_32_RRR_SELN:
+ temp = tcg_const_i32(0);
+ tcg_gen_movcond_tl(TCG_COND_EQ, cpu_gpr_d[r4], cpu_gpr_d[r3], temp,
+ cpu_gpr_d[r1], cpu_gpr_d[r2]);
+ tcg_temp_free(temp);
+ break;
+ }
+}
+
+static void decode_rrr_divide(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+
+ int r1, r2, r3, r4;
+
+ op2 = MASK_OP_RRR_OP2(ctx->opcode);
+ r1 = MASK_OP_RRR_S1(ctx->opcode);
+ r2 = MASK_OP_RRR_S2(ctx->opcode);
+ r3 = MASK_OP_RRR_S3(ctx->opcode);
+ r4 = MASK_OP_RRR_D(ctx->opcode);
+
+ switch (op2) {
+ case OPC2_32_RRR_DVADJ:
+ GEN_HELPER_RRR(dvadj, cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
+ cpu_gpr_d[r3+1], cpu_gpr_d[r2]);
+ break;
+ case OPC2_32_RRR_DVSTEP:
+ GEN_HELPER_RRR(dvstep, cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
+ cpu_gpr_d[r3+1], cpu_gpr_d[r2]);
+ break;
+ case OPC2_32_RRR_DVSTEP_U:
+ GEN_HELPER_RRR(dvstep_u, cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
+ cpu_gpr_d[r3+1], cpu_gpr_d[r2]);
+ break;
+ case OPC2_32_RRR_IXMAX:
+ GEN_HELPER_RRR(ixmax, cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
+ cpu_gpr_d[r3+1], cpu_gpr_d[r2]);
+ break;
+ case OPC2_32_RRR_IXMAX_U:
+ GEN_HELPER_RRR(ixmax_u, cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
+ cpu_gpr_d[r3+1], cpu_gpr_d[r2]);
+ break;
+ case OPC2_32_RRR_IXMIN:
+ GEN_HELPER_RRR(ixmin, cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
+ cpu_gpr_d[r3+1], cpu_gpr_d[r2]);
+ break;
+ case OPC2_32_RRR_IXMIN_U:
+ GEN_HELPER_RRR(ixmin_u, cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
+ cpu_gpr_d[r3+1], cpu_gpr_d[r2]);
+ break;
+ case OPC2_32_RRR_PACK:
+ gen_helper_pack(cpu_gpr_d[r4], cpu_PSW_C, cpu_gpr_d[r3],
+ cpu_gpr_d[r3+1], cpu_gpr_d[r1]);
+ break;
+ }
+}
+
static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{
int op1;
@@ -5325,6 +5469,12 @@ static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
tcg_temp_free(temp);
}
break;
+/* RRR Format */
+ case OPCM_32_RRR_COND_SELECT:
+ decode_rrr_cond_select(env, ctx);
+ break;
+ case OPCM_32_RRR_DIVIDE:
+ decode_rrr_divide(env, ctx);
}
}
diff --git a/target-tricore/tricore-opcodes.h b/target-tricore/tricore-opcodes.h
index 82bd161..baf537f 100644
--- a/target-tricore/tricore-opcodes.h
+++ b/target-tricore/tricore-opcodes.h
@@ -516,7 +516,7 @@ enum {
OPC1_32_RRPW_DEXTR = 0x77,
/* RRR Format */
OPCM_32_RRR_COND_SELECT = 0x2b,
- OPCM_32_RRR_FLOAT = 0x6b,
+ OPCM_32_RRR_DIVIDE = 0x6b,
/* RRR1 Format */
OPCM_32_RRR1_MADD = 0x83,
OPCM_32_RRR1_MADDQ_H = 0x43,
--
2.2.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* Re: [Qemu-devel] [PULL 0/9] tricore patches
2015-01-26 20:03 [Qemu-devel] [PULL 0/9] tricore patches Bastian Koppelmann
` (8 preceding siblings ...)
2015-01-26 20:03 ` [Qemu-devel] [PULL 9/9] target-tricore: Add instructions of RRR " Bastian Koppelmann
@ 2015-01-27 10:40 ` Peter Maydell
2015-01-27 11:45 ` Bastian Koppelmann
9 siblings, 1 reply; 13+ messages in thread
From: Peter Maydell @ 2015-01-27 10:40 UTC (permalink / raw)
To: Bastian Koppelmann; +Cc: QEMU Developers
On 26 January 2015 at 20:03, Bastian Koppelmann
<kbastian@mail.uni-paderborn.de> wrote:
> The following changes since commit 1ac0206b2ae1ffaeec564f110664a3a77bafafd2:
>
> qemu-timer.c: Trim list of included headers (2015-01-26 18:15:54 +0000)
>
> are available in the git repository at:
>
> https://github.com/bkoppelmann/qemu-tricore-upstream.git tags/pull-tricore20150126-2
>
> for you to fetch changes up to 24c3bf03341ada63a0728f2bdfd2b7c226ad958e:
>
> target-tricore: Add instructions of RRR opcode format (2015-01-26 19:56:46 +0000)
>
> ----------------------------------------------------------------
> tricore bugfixes and RR1, RR2, RRPW and RRR insn
>
> ----------------------------------------------------------------
Looks like this would introduce a new clang warning:
/home/petmay01/linaro/qemu-for-merges/target-tricore/translate.c:1049:23:
warning: equality
comparison with extraneous parentheses [-Wparentheses-equality]
if ((up_shift == 32)) {
~~~~~~~~~^~~~~
/home/petmay01/linaro/qemu-for-merges/target-tricore/translate.c:1049:23:
note: remove extraneous
parentheses around the comparison to silence this warning
if ((up_shift == 32)) {
~ ^ ~
/home/petmay01/linaro/qemu-for-merges/target-tricore/translate.c:1049:23:
note: use '=' to turn
this equality comparison into an assignment
if ((up_shift == 32)) {
^~
=
We've nearly managed to eradicate all our clang warnings so I
don't want to add more at this point -- could you fix this
and resend the pullreq, please?
thanks
-- PMM
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [Qemu-devel] [PULL 0/9] tricore patches
2015-01-27 10:40 ` [Qemu-devel] [PULL 0/9] tricore patches Peter Maydell
@ 2015-01-27 11:45 ` Bastian Koppelmann
2015-01-27 11:23 ` Peter Maydell
0 siblings, 1 reply; 13+ messages in thread
From: Bastian Koppelmann @ 2015-01-27 11:45 UTC (permalink / raw)
To: Peter Maydell; +Cc: QEMU Developers
On 01/27/2015 10:40 AM, Peter Maydell wrote:
> On 26 January 2015 at 20:03, Bastian Koppelmann
> <kbastian@mail.uni-paderborn.de> wrote:
>> The following changes since commit 1ac0206b2ae1ffaeec564f110664a3a77bafafd2:
>>
>> qemu-timer.c: Trim list of included headers (2015-01-26 18:15:54 +0000)
>>
>> are available in the git repository at:
>>
>> https://github.com/bkoppelmann/qemu-tricore-upstream.git tags/pull-tricore20150126-2
>>
>> for you to fetch changes up to 24c3bf03341ada63a0728f2bdfd2b7c226ad958e:
>>
>> target-tricore: Add instructions of RRR opcode format (2015-01-26 19:56:46 +0000)
>>
>> ----------------------------------------------------------------
>> tricore bugfixes and RR1, RR2, RRPW and RRR insn
>>
>> ----------------------------------------------------------------
> Looks like this would introduce a new clang warning:
>
> /home/petmay01/linaro/qemu-for-merges/target-tricore/translate.c:1049:23:
> warning: equality
> comparison with extraneous parentheses [-Wparentheses-equality]
> if ((up_shift == 32)) {
> ~~~~~~~~~^~~~~
> /home/petmay01/linaro/qemu-for-merges/target-tricore/translate.c:1049:23:
> note: remove extraneous
> parentheses around the comparison to silence this warning
> if ((up_shift == 32)) {
> ~ ^ ~
> /home/petmay01/linaro/qemu-for-merges/target-tricore/translate.c:1049:23:
> note: use '=' to turn
> this equality comparison into an assignment
> if ((up_shift == 32)) {
> ^~
> =
>
> We've nearly managed to eradicate all our clang warnings so I
> don't want to add more at this point -- could you fix this
> and resend the pullreq, please?
Sure thing. With this many clang warning, I think I should also build
with clang on my machine too.
Cheers,
Bastian
> thanks
> -- PMM
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [Qemu-devel] [PULL 0/9] tricore patches
2015-01-27 11:45 ` Bastian Koppelmann
@ 2015-01-27 11:23 ` Peter Maydell
0 siblings, 0 replies; 13+ messages in thread
From: Peter Maydell @ 2015-01-27 11:23 UTC (permalink / raw)
To: Bastian Koppelmann; +Cc: QEMU Developers
On 27 January 2015 at 11:45, Bastian Koppelmann
<kbastian@mail.uni-paderborn.de> wrote:
> Sure thing. With this many clang warning, I think I should also build with
> clang on my machine too.
You don't have to (though of course you can if you like): I
build pull requests with a pretty wide set of target configs
which I don't expect every submaintainer to have convenient
access to. (I don't even run my own pull requests through the
full set of config builds before sending them :-))
I recommend configuring with '--cc=clang' '--cxx=clang++'
'--extra-cflags=-fsanitize=undefined'
(and do use separate build directories so it doesn't get
mixed up with the gcc build objects). The undefined
sanitizer will print warnings at runtime about things that
are undefined behaviour in C, so it's worth exercising your
code under that build occasionally to see what falls out.
-- PMM
^ permalink raw reply [flat|nested] 13+ messages in thread