diff options
author | Siarhei Volkau <lis8215@gmail.com> | 2023-06-08 13:42:16 +0300 |
---|---|---|
committer | Philippe Mathieu-Daudé <philmd@linaro.org> | 2023-07-10 23:33:38 +0200 |
commit | 07c92895d758a9d2f77d555b92ae18149c14680d (patch) | |
tree | cd2b193bb1ba91eaaf8fea71d7b33b1043e9adff /target/mips/tcg/mxu_translate.c | |
parent | 52fe25d4452f8b5d8151ffe65f35da34b7fc237e (diff) |
target/mips/mxu: Add D32/Q16- SLLV/SLRV/SARV instructions
These instructions are counterparts for D32/Q16-SLL/SLR/SAR with
difference that the shift amount placed into GPR.
Signed-off-by: Siarhei Volkau <lis8215@gmail.com>
Message-Id: <20230608104222.1520143-28-lis8215@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Diffstat (limited to 'target/mips/tcg/mxu_translate.c')
-rw-r--r-- | target/mips/tcg/mxu_translate.c | 166 |
1 files changed, 162 insertions, 4 deletions
diff --git a/target/mips/tcg/mxu_translate.c b/target/mips/tcg/mxu_translate.c index 672b0041b5..32fc236d87 100644 --- a/target/mips/tcg/mxu_translate.c +++ b/target/mips/tcg/mxu_translate.c @@ -318,10 +318,10 @@ * ├─ 110001 ─ OPC_MXU_D32SLR 20..18 * ├─ 110010 ─ OPC_MXU_D32SARL ┌─ 000 ─ OPC_MXU_D32SLLV * ├─ 110011 ─ OPC_MXU_D32SAR ├─ 001 ─ OPC_MXU_D32SLRV - * ├─ 110100 ─ OPC_MXU_Q16SLL ├─ 010 ─ OPC_MXU_D32SARV - * ├─ 110101 ─ OPC_MXU_Q16SLR ├─ 011 ─ OPC_MXU_Q16SLLV - * │ ├─ 100 ─ OPC_MXU_Q16SLRV - * ├─ 110110 ─ OPC_MXU__POOL18 ─┴─ 101 ─ OPC_MXU_Q16SARV + * ├─ 110100 ─ OPC_MXU_Q16SLL ├─ 011 ─ OPC_MXU_D32SARV + * ├─ 110101 ─ OPC_MXU_Q16SLR ├─ 100 ─ OPC_MXU_Q16SLLV + * │ ├─ 101 ─ OPC_MXU_Q16SLRV + * ├─ 110110 ─ OPC_MXU__POOL18 ─┴─ 111 ─ OPC_MXU_Q16SARV * │ * ├─ 110111 ─ OPC_MXU_Q16SAR * │ 23..22 @@ -400,6 +400,7 @@ enum { OPC_MXU_D32SAR = 0x33, OPC_MXU_Q16SLL = 0x34, OPC_MXU_Q16SLR = 0x35, + OPC_MXU__POOL18 = 0x36, OPC_MXU_Q16SAR = 0x37, OPC_MXU__POOL19 = 0x38, }; @@ -521,6 +522,18 @@ enum { }; /* + * MXU pool 18 + */ +enum { + OPC_MXU_D32SLLV = 0x00, + OPC_MXU_D32SLRV = 0x01, + OPC_MXU_D32SARV = 0x03, + OPC_MXU_Q16SLLV = 0x04, + OPC_MXU_Q16SLRV = 0x05, + OPC_MXU_Q16SARV = 0x07, +}; + +/* * MXU pool 19 */ enum { @@ -1751,6 +1764,50 @@ static void gen_mxu_d32sxx(DisasContext *ctx, bool right, bool arithmetic) } /* + * D32SLLV XRa, XRd, rs + * Dual 32-bit shift left from XRa and XRd to rs[3:0] + * bits. Store back to XRa and XRd respectively. + * D32SLRV XRa, XRd, rs + * Dual 32-bit shift logic right from XRa and XRd to rs[3:0] + * bits. Store back to XRa and XRd respectively. + * D32SARV XRa, XRd, rs + * Dual 32-bit shift arithmetic right from XRa and XRd to rs[3:0] + * bits. Store back to XRa and XRd respectively. + */ +static void gen_mxu_d32sxxv(DisasContext *ctx, bool right, bool arithmetic) +{ + uint32_t XRa, XRd, rs; + + XRa = extract32(ctx->opcode, 10, 4); + XRd = extract32(ctx->opcode, 14, 4); + rs = extract32(ctx->opcode, 21, 5); + + TCGv t0 = tcg_temp_new(); + TCGv t1 = tcg_temp_new(); + TCGv t2 = tcg_temp_new(); + + gen_load_mxu_gpr(t0, XRa); + gen_load_mxu_gpr(t1, XRd); + gen_load_gpr(t2, rs); + tcg_gen_andi_tl(t2, t2, 0x0f); + + if (right) { + if (arithmetic) { + tcg_gen_sar_tl(t0, t0, t2); + tcg_gen_sar_tl(t1, t1, t2); + } else { + tcg_gen_shr_tl(t0, t0, t2); + tcg_gen_shr_tl(t1, t1, t2); + } + } else { + tcg_gen_shl_tl(t0, t0, t2); + tcg_gen_shl_tl(t1, t1, t2); + } + gen_store_mxu_gpr(t0, XRa); + gen_store_mxu_gpr(t1, XRd); +} + +/* * D32SARL XRa, XRb, XRc, SFT4 * Dual shift arithmetic right 32-bit integers in XRb and XRc * to SFT4 bits (0..15). Pack 16 LSBs of each into XRa. @@ -1859,6 +1916,74 @@ static void gen_mxu_q16sxx(DisasContext *ctx, bool right, bool arithmetic) } /* + * Q16SLLV XRa, XRd, rs + * Quad 16-bit shift left from XRa and XRd to rs[3:0] + * bits. Store to XRa and XRd respectively. + * Q16SLRV XRa, XRd, rs + * Quad 16-bit shift logic right from XRa and XRd to rs[3:0] + * bits. Store to XRa and XRd respectively. + * Q16SARV XRa, XRd, rs + * Quad 16-bit shift arithmetic right from XRa and XRd to rs[3:0] + * bits. Store to XRa and XRd respectively. + */ +static void gen_mxu_q16sxxv(DisasContext *ctx, bool right, bool arithmetic) +{ + uint32_t XRa, XRd, rs; + + XRa = extract32(ctx->opcode, 10, 4); + XRd = extract32(ctx->opcode, 14, 4); + rs = extract32(ctx->opcode, 21, 5); + + TCGv t0 = tcg_temp_new(); + TCGv t1 = tcg_temp_new(); + TCGv t2 = tcg_temp_new(); + TCGv t3 = tcg_temp_new(); + TCGv t5 = tcg_temp_new(); + + gen_load_mxu_gpr(t0, XRa); + gen_load_mxu_gpr(t2, XRd); + gen_load_gpr(t5, rs); + tcg_gen_andi_tl(t5, t5, 0x0f); + + + if (arithmetic) { + tcg_gen_sextract_tl(t1, t0, 16, 16); + tcg_gen_sextract_tl(t0, t0, 0, 16); + tcg_gen_sextract_tl(t3, t2, 16, 16); + tcg_gen_sextract_tl(t2, t2, 0, 16); + } else { + tcg_gen_extract_tl(t1, t0, 16, 16); + tcg_gen_extract_tl(t0, t0, 0, 16); + tcg_gen_extract_tl(t3, t2, 16, 16); + tcg_gen_extract_tl(t2, t2, 0, 16); + } + + if (right) { + if (arithmetic) { + tcg_gen_sar_tl(t0, t0, t5); + tcg_gen_sar_tl(t1, t1, t5); + tcg_gen_sar_tl(t2, t2, t5); + tcg_gen_sar_tl(t3, t3, t5); + } else { + tcg_gen_shr_tl(t0, t0, t5); + tcg_gen_shr_tl(t1, t1, t5); + tcg_gen_shr_tl(t2, t2, t5); + tcg_gen_shr_tl(t3, t3, t5); + } + } else { + tcg_gen_shl_tl(t0, t0, t5); + tcg_gen_shl_tl(t1, t1, t5); + tcg_gen_shl_tl(t2, t2, t5); + tcg_gen_shl_tl(t3, t3, t5); + } + tcg_gen_deposit_tl(t0, t0, t1, 16, 16); + tcg_gen_deposit_tl(t2, t2, t3, 16, 16); + + gen_store_mxu_gpr(t0, XRa); + gen_store_mxu_gpr(t2, XRd); +} + +/* * MXU instruction category max/min/avg * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * @@ -4236,6 +4361,36 @@ static void decode_opc_mxu__pool17(DisasContext *ctx) } } +static void decode_opc_mxu__pool18(DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 18, 3); + + switch (opcode) { + case OPC_MXU_D32SLLV: + gen_mxu_d32sxxv(ctx, false, false); + break; + case OPC_MXU_D32SLRV: + gen_mxu_d32sxxv(ctx, true, false); + break; + case OPC_MXU_D32SARV: + gen_mxu_d32sxxv(ctx, true, true); + break; + case OPC_MXU_Q16SLLV: + gen_mxu_q16sxxv(ctx, false, false); + break; + case OPC_MXU_Q16SLRV: + gen_mxu_q16sxxv(ctx, true, false); + break; + case OPC_MXU_Q16SARV: + gen_mxu_q16sxxv(ctx, true, true); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + gen_reserved_instruction(ctx); + break; + } +} + static void decode_opc_mxu__pool19(DisasContext *ctx) { uint32_t opcode = extract32(ctx->opcode, 22, 2); @@ -4400,6 +4555,9 @@ bool decode_ase_mxu(DisasContext *ctx, uint32_t insn) case OPC_MXU_Q16SLL: gen_mxu_q16sxx(ctx, false, false); break; + case OPC_MXU__POOL18: + decode_opc_mxu__pool18(ctx); + break; case OPC_MXU_Q16SLR: gen_mxu_q16sxx(ctx, true, false); break; |