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From: matheus.ferst@eldorado.org.br
To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org
Cc: richard.henderson@linaro.org, f4bug@amsat.org,
	luis.pires@eldorado.org.br, lagarcia@br.ibm.com,
	bruno.larsen@eldorado.org.br, matheus.ferst@eldorado.org.br,
	david@gibson.dropbear.id.au
Subject: [PATCH v4 28/31] target/ppc: Implement setbc/setbcr/stnbc/setnbcr instructions
Date: Wed, 12 May 2021 15:54:38 -0300	[thread overview]
Message-ID: <20210512185441.3619828-29-matheus.ferst@eldorado.org.br> (raw)
In-Reply-To: <20210512185441.3619828-1-matheus.ferst@eldorado.org.br>

From: Matheus Ferst <matheus.ferst@eldorado.org.br>

Implements the following PowerISA v3.1 instructions:
setbc: Set Boolean Condition
setbcr: Set Boolean Condition Reverse
setnbc: Set Negative Boolean Condition
setnbcr: Set Negative Boolean Condition Reverse

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
---
 target/ppc/insn32.decode                   | 10 ++++++++++
 target/ppc/translate/fixedpoint-impl.c.inc | 21 +++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode
index 8460100177..d69c0bc14c 100644
--- a/target/ppc/insn32.decode
+++ b/target/ppc/insn32.decode
@@ -26,6 +26,9 @@
 &X              rt ra rb
 @X              ...... rt:5 ra:5 rb:5 .......... .      &X
 
+&X_bi           rt bi
+@X_bi           ...... rt:5 bi:5 ----- .......... -     &X_bi
+
 ### Fixed-Point Load Instructions
 
 LBZ             100010 ..... ..... ................     @D
@@ -83,3 +86,10 @@ STDUX           011111 ..... ..... ..... 0010110101 -   @X
 
 ADDI            001110 ..... ..... ................     @D
 ADDIS           001111 ..... ..... ................     @D
+
+### Move To/From System Register Instructions
+
+SETBC           011111 ..... ..... ----- 0110000000 -   @X_bi
+SETBCR          011111 ..... ..... ----- 0110100000 -   @X_bi
+SETNBC          011111 ..... ..... ----- 0111000000 -   @X_bi
+SETNBCR         011111 ..... ..... ----- 0111100000 -   @X_bi
diff --git a/target/ppc/translate/fixedpoint-impl.c.inc b/target/ppc/translate/fixedpoint-impl.c.inc
index 04a974214f..37dd25148c 100644
--- a/target/ppc/translate/fixedpoint-impl.c.inc
+++ b/target/ppc/translate/fixedpoint-impl.c.inc
@@ -201,3 +201,24 @@ static bool trans_PNOP(DisasContext *ctx, arg_PNOP *a)
     }
     return true;
 }
+
+static bool do_set_bool_cond(DisasContext *ctx, arg_X_bi *a, bool neg, bool rev)
+{
+    REQUIRE_INSNS_FLAGS2(ctx, ISA310);
+    uint32_t mask = 0x08 >> (a->bi & 0x03);
+    TCGv temp = tcg_temp_new();
+
+    tcg_gen_extu_i32_tl(temp, cpu_crf[a->bi >> 2]);
+    tcg_gen_andi_tl(temp, temp, mask);
+    tcg_gen_movcond_tl(a->r?TCG_COND_EQ:TCG_COND_NE, cpu_gpr[a->rt], temp,
+                       tcg_constant_tl(0), tcg_constant_tl(a->n?-1:1),
+                       tcg_constant_tl(0));
+    tcg_temp_free(temp);
+
+    return true;
+}
+
+TRANS(SETBC, do_set_bool_cond, false, false)
+TRANS(SETBCR, do_set_bool_cond, false, true)
+TRANS(SETNBC, do_set_bool_cond, true, false)
+TRANS(SETNBCR, do_set_bool_cond, true, true)
-- 
2.25.1



  parent reply	other threads:[~2021-05-12 19:52 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-12 18:54 [PATCH v4 00/31] Base for adding PowerPC 64-bit instructions matheus.ferst
2021-05-12 18:54 ` [PATCH v4 01/31] target/ppc: Add cia field to DisasContext matheus.ferst
2021-05-13  4:03   ` David Gibson
2021-05-12 18:54 ` [PATCH v4 02/31] target/ppc: Split out decode_legacy matheus.ferst
2021-05-13  4:03   ` David Gibson
2021-05-12 18:54 ` [PATCH v4 03/31] target/ppc: Move DISAS_NORETURN setting into gen_exception* matheus.ferst
2021-05-13  4:06   ` David Gibson
2021-05-12 18:54 ` [PATCH v4 04/31] target/ppc: Remove special case for POWERPC_SYSCALL matheus.ferst
2021-05-13  4:06   ` David Gibson
2021-05-12 18:54 ` [PATCH v4 05/31] target/ppc: Remove special case for POWERPC_EXCP_TRAP matheus.ferst
2021-05-13  4:07   ` David Gibson
2021-05-12 18:54 ` [PATCH v4 06/31] target/ppc: Simplify gen_debug_exception matheus.ferst
2021-05-13  4:08   ` David Gibson
2021-05-12 18:54 ` [PATCH v4 07/31] target/ppc: Introduce DISAS_{EXIT,CHAIN}{,_UPDATE} matheus.ferst
2021-05-13  4:10   ` David Gibson
2021-05-12 18:54 ` [PATCH v4 08/31] target/ppc: Replace POWERPC_EXCP_SYNC with DISAS_EXIT matheus.ferst
2021-05-12 19:31   ` Bruno Piazera Larsen
2021-05-13  4:11   ` David Gibson
2021-05-12 18:54 ` [PATCH v4 09/31] target/ppc: Remove unnecessary gen_io_end calls matheus.ferst
2021-05-13  4:12   ` David Gibson
2021-05-12 18:54 ` [PATCH v4 10/31] target/ppc: Introduce gen_icount_io_start matheus.ferst
2021-05-12 19:21   ` Matheus K. Ferst
2021-05-13  4:14     ` David Gibson
2021-05-12 18:54 ` [PATCH v4 11/31] target/ppc: Replace POWERPC_EXCP_STOP with DISAS_EXIT_UPDATE matheus.ferst
2021-05-12 18:54 ` [PATCH v4 12/31] target/ppc: Replace POWERPC_EXCP_BRANCH with DISAS_NORETURN matheus.ferst
2021-05-12 18:54 ` [PATCH v4 13/31] target/ppc: Remove DisasContext.exception matheus.ferst
2021-05-12 18:54 ` [PATCH v4 14/31] target/ppc: Move single-step check to ppc_tr_tb_stop matheus.ferst
2021-05-12 18:54 ` [PATCH v4 15/31] target/ppc: Tidy exception vs exit_tb matheus.ferst
2021-05-12 18:54 ` [PATCH v4 16/31] target/ppc: Mark helper_raise_exception* as noreturn matheus.ferst
2021-05-12 18:54 ` [PATCH v4 17/31] target/ppc: Use translator_loop_temp_check matheus.ferst
2021-05-12 19:45   ` Bruno Piazera Larsen
2021-05-12 18:54 ` [PATCH v4 18/31] target/ppc: Introduce macros to check isa extensions matheus.ferst
2021-05-12 18:54 ` [PATCH v4 19/31] target/ppc: Move page crossing check to ppc_tr_translate_insn matheus.ferst
2021-05-12 18:54 ` [PATCH v4 20/31] target/ppc: Add infrastructure for prefixed insns matheus.ferst
2021-05-12 18:54 ` [PATCH v4 21/31] target/ppc: Move ADDI, ADDIS to decodetree, implement PADDI matheus.ferst
2021-05-12 18:54 ` [PATCH v4 22/31] target/ppc: Implement PNOP matheus.ferst
2021-05-13 10:37   ` Richard Henderson
2021-05-12 18:54 ` [PATCH v4 23/31] TCG: add tcg_constant_tl matheus.ferst
2021-05-13 10:42   ` Richard Henderson
2021-05-12 18:54 ` [PATCH v4 24/31] target/ppc: Move D/DS/X-form integer loads to decodetree matheus.ferst
2021-05-12 18:54 ` [PATCH v4 25/31] target/ppc: Implement prefixed integer load instructions matheus.ferst
2021-05-13 10:50   ` Richard Henderson
2021-05-12 18:54 ` [PATCH v4 26/31] target/ppc: Move D/DS/X-form integer stores to decodetree matheus.ferst
2021-05-12 18:54 ` [PATCH v4 27/31] target/ppc: Implement prefixed integer store instructions matheus.ferst
2021-05-12 18:54 ` matheus.ferst [this message]
2021-05-13 11:01   ` [PATCH v4 28/31] target/ppc: Implement setbc/setbcr/stnbc/setnbcr instructions Richard Henderson
2021-05-13 11:43     ` Matheus K. Ferst
2021-05-12 18:54 ` [PATCH v4 29/31] target/ppc: Implement cfuged instruction matheus.ferst
2021-05-13 11:31   ` Richard Henderson
2021-05-13 12:24     ` Matheus K. Ferst
2021-05-14  0:01       ` Richard Henderson
2021-05-12 18:54 ` [PATCH v4 30/31] target/ppc: Implement vcfuged instruction matheus.ferst
2021-05-13 11:36   ` Richard Henderson
2021-05-12 18:54 ` [PATCH v4 31/31] target/ppc: Move addpcis to decodetree matheus.ferst
2021-05-13 11:40   ` Richard Henderson
2021-05-13  4:22 ` [PATCH v4 00/31] Base for adding PowerPC 64-bit instructions David Gibson

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