diff options
| author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2021-07-28 13:26:10 +0200 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2021-08-25 13:02:14 +0200 |
| commit | bf7720024c62c9e2707b11aa7fe178be691b2f35 (patch) | |
| tree | 1522a015023d6b3b138ede7f91ec4f715dcdd0d3 /target/mips | |
| parent | a5e2932068f1b09fa3be3b79a88f935b6e9620c3 (diff) | |
target/mips: Convert Vr54xx MSA* opcodes to decodetree
Convert the following Integer Multiply-Accumulate opcodes:
* MSAC Multiply, negate, accumulate, and move LO
* MSACHI Multiply, negate, accumulate, and move HI
* MSACHIU Unsigned multiply, negate, accumulate, and move HI
* MSACU Unsigned multiply, negate, accumulate, and move LO
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210808173018.90960-8-f4bug@amsat.org>
Diffstat (limited to 'target/mips')
| -rw-r--r-- | target/mips/tcg/translate.c | 55 | ||||
| -rw-r--r-- | target/mips/tcg/vr54xx.decode | 4 | ||||
| -rw-r--r-- | target/mips/tcg/vr54xx_translate.c | 8 |
3 files changed, 14 insertions, 53 deletions
diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c index 4b7f2d9ae8..30780deb96 100644 --- a/target/mips/tcg/translate.c +++ b/target/mips/tcg/translate.c @@ -294,16 +294,6 @@ enum { R6_OPC_SDBBP = 0x0e | OPC_SPECIAL, }; -/* Multiplication variants of the vr54xx. */ -#define MASK_MUL_VR54XX(op) (MASK_SPECIAL(op) | (op & (0x1F << 6))) - -enum { - OPC_VR54XX_MSAC = (0x07 << 6) | OPC_MULT, - OPC_VR54XX_MSACU = (0x07 << 6) | OPC_MULTU, - OPC_VR54XX_MSACHI = (0x0F << 6) | OPC_MULT, - OPC_VR54XX_MSACHIU = (0x0F << 6) | OPC_MULTU, -}; - /* REGIMM (rt field) opcodes */ #define MASK_REGIMM(op) (MASK_OP_MAJOR(op) | (op & (0x1F << 16))) @@ -3754,40 +3744,6 @@ static void gen_mul_txx9(DisasContext *ctx, uint32_t opc, tcg_temp_free(t1); } -static void gen_mul_vr54xx(DisasContext *ctx, uint32_t opc, - int rd, int rs, int rt) -{ - TCGv t0 = tcg_temp_new(); - TCGv t1 = tcg_temp_new(); - - gen_load_gpr(t0, rs); - gen_load_gpr(t1, rt); - - switch (opc) { - case OPC_VR54XX_MSAC: - gen_helper_msac(t0, cpu_env, t0, t1); - break; - case OPC_VR54XX_MSACU: - gen_helper_msacu(t0, cpu_env, t0, t1); - break; - case OPC_VR54XX_MSACHI: - gen_helper_msachi(t0, cpu_env, t0, t1); - break; - case OPC_VR54XX_MSACHIU: - gen_helper_msachiu(t0, cpu_env, t0, t1); - break; - default: - MIPS_INVAL("mul vr54xx"); - gen_reserved_instruction(ctx); - goto out; - } - gen_store_gpr(t0, rd); - - out: - tcg_temp_free(t0); - tcg_temp_free(t1); -} - static void gen_cl(DisasContext *ctx, uint32_t opc, int rd, int rs) { @@ -14104,13 +14060,12 @@ static void decode_opc_special_tx79(CPUMIPSState *env, DisasContext *ctx) static void decode_opc_special_legacy(CPUMIPSState *env, DisasContext *ctx) { - int rs, rt, rd, sa; + int rs, rt, rd; uint32_t op1; rs = (ctx->opcode >> 21) & 0x1f; rt = (ctx->opcode >> 16) & 0x1f; rd = (ctx->opcode >> 11) & 0x1f; - sa = (ctx->opcode >> 6) & 0x1f; op1 = MASK_SPECIAL(ctx->opcode); switch (op1) { @@ -14140,13 +14095,7 @@ static void decode_opc_special_legacy(CPUMIPSState *env, DisasContext *ctx) break; case OPC_MULT: case OPC_MULTU: - if (sa) { - check_insn(ctx, INSN_VR54XX); - op1 = MASK_MUL_VR54XX(ctx->opcode); - gen_mul_vr54xx(ctx, op1, rd, rs, rt); - } else { - gen_muldiv(ctx, op1, rd & 3, rs, rt); - } + gen_muldiv(ctx, op1, rd & 3, rs, rt); break; case OPC_DIV: case OPC_DIVU: diff --git a/target/mips/tcg/vr54xx.decode b/target/mips/tcg/vr54xx.decode index 79bb5175ea..4fc708d80a 100644 --- a/target/mips/tcg/vr54xx.decode +++ b/target/mips/tcg/vr54xx.decode @@ -15,9 +15,13 @@ MULS 000000 ..... ..... ..... 00011011000 @rs_rt_rd MULSU 000000 ..... ..... ..... 00011011001 @rs_rt_rd MACC 000000 ..... ..... ..... 00101011000 @rs_rt_rd MACCU 000000 ..... ..... ..... 00101011001 @rs_rt_rd +MSAC 000000 ..... ..... ..... 00111011000 @rs_rt_rd +MSACU 000000 ..... ..... ..... 00111011001 @rs_rt_rd MULHI 000000 ..... ..... ..... 01001011000 @rs_rt_rd MULHIU 000000 ..... ..... ..... 01001011001 @rs_rt_rd MULSHI 000000 ..... ..... ..... 01011011000 @rs_rt_rd MULSHIU 000000 ..... ..... ..... 01011011001 @rs_rt_rd MACCHI 000000 ..... ..... ..... 01101011000 @rs_rt_rd MACCHIU 000000 ..... ..... ..... 01101011001 @rs_rt_rd +MSACHI 000000 ..... ..... ..... 01111011000 @rs_rt_rd +MSACHIU 000000 ..... ..... ..... 01111011001 @rs_rt_rd diff --git a/target/mips/tcg/vr54xx_translate.c b/target/mips/tcg/vr54xx_translate.c index 9f35b2c7e5..3e2c98f2c6 100644 --- a/target/mips/tcg/vr54xx_translate.c +++ b/target/mips/tcg/vr54xx_translate.c @@ -25,6 +25,10 @@ * MACCHI Multiply, accumulate, and move HI * MACCHIU Unsigned multiply, accumulate, and move HI * MACCU Unsigned multiply, accumulate, and move LO + * MSAC Multiply, negate, accumulate, and move LO + * MSACHI Multiply, negate, accumulate, and move HI + * MSACHIU Unsigned multiply, negate, accumulate, and move HI + * MSACU Unsigned multiply, negate, accumulate, and move LO * MULHI Multiply and move HI * MULHIU Unsigned multiply and move HI * MULS Multiply, negate, and move LO @@ -56,6 +60,10 @@ TRANS(MACC, trans_mult_acc, gen_helper_macc); TRANS(MACCHI, trans_mult_acc, gen_helper_macchi); TRANS(MACCHIU, trans_mult_acc, gen_helper_macchiu); TRANS(MACCU, trans_mult_acc, gen_helper_maccu); +TRANS(MSAC, trans_mult_acc, gen_helper_msac); +TRANS(MSACHI, trans_mult_acc, gen_helper_msachi); +TRANS(MSACHIU, trans_mult_acc, gen_helper_msachiu); +TRANS(MSACU, trans_mult_acc, gen_helper_msacu); TRANS(MULHI, trans_mult_acc, gen_helper_mulhi); TRANS(MULHIU, trans_mult_acc, gen_helper_mulhiu); TRANS(MULS, trans_mult_acc, gen_helper_muls); |