diff options
Diffstat (limited to 'target')
-rw-r--r-- | target/mips/tcg/mxu_translate.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/target/mips/tcg/mxu_translate.c b/target/mips/tcg/mxu_translate.c index 6945dcb..84c52c5 100644 --- a/target/mips/tcg/mxu_translate.c +++ b/target/mips/tcg/mxu_translate.c @@ -406,6 +406,7 @@ enum { OPC_MXU__POOL20 = 0x39, OPC_MXU__POOL21 = 0x3A, OPC_MXU_Q16SCOP = 0x3B, + OPC_MXU_Q8MADL = 0x3C, }; @@ -1424,6 +1425,77 @@ static void gen_mxu_q8mul_mac(DisasContext *ctx, bool su, bool mac) } /* + * Q8MADL XRd, XRa, XRb, XRc + * Parallel quad unsigned 8 bit multiply and accumulate. + * e.g. XRd[0..3] = XRa[0..3] + XRb[0..3] * XRc[0..3] + */ +static void gen_mxu_q8madl(DisasContext *ctx) +{ + TCGv t0, t1, t2, t3, t4, t5, t6, t7; + uint32_t XRa, XRb, XRc, XRd, aptn2; + + t0 = tcg_temp_new(); + t1 = tcg_temp_new(); + t2 = tcg_temp_new(); + t3 = tcg_temp_new(); + t4 = tcg_temp_new(); + t5 = tcg_temp_new(); + t6 = tcg_temp_new(); + t7 = tcg_temp_new(); + + XRa = extract32(ctx->opcode, 6, 4); + XRb = extract32(ctx->opcode, 10, 4); + XRc = extract32(ctx->opcode, 14, 4); + XRd = extract32(ctx->opcode, 18, 4); + aptn2 = extract32(ctx->opcode, 24, 2); + + gen_load_mxu_gpr(t3, XRb); + gen_load_mxu_gpr(t7, XRc); + + tcg_gen_extract_tl(t0, t3, 0, 8); + tcg_gen_extract_tl(t1, t3, 8, 8); + tcg_gen_extract_tl(t2, t3, 16, 8); + tcg_gen_extract_tl(t3, t3, 24, 8); + + tcg_gen_extract_tl(t4, t7, 0, 8); + tcg_gen_extract_tl(t5, t7, 8, 8); + tcg_gen_extract_tl(t6, t7, 16, 8); + tcg_gen_extract_tl(t7, t7, 24, 8); + + tcg_gen_mul_tl(t0, t0, t4); + tcg_gen_mul_tl(t1, t1, t5); + tcg_gen_mul_tl(t2, t2, t6); + tcg_gen_mul_tl(t3, t3, t7); + + gen_load_mxu_gpr(t4, XRa); + tcg_gen_extract_tl(t6, t4, 0, 8); + tcg_gen_extract_tl(t7, t4, 8, 8); + if (aptn2 & 1) { + tcg_gen_sub_tl(t0, t6, t0); + tcg_gen_sub_tl(t1, t7, t1); + } else { + tcg_gen_add_tl(t0, t6, t0); + tcg_gen_add_tl(t1, t7, t1); + } + tcg_gen_extract_tl(t6, t4, 16, 8); + tcg_gen_extract_tl(t7, t4, 24, 8); + if (aptn2 & 2) { + tcg_gen_sub_tl(t2, t6, t2); + tcg_gen_sub_tl(t3, t7, t3); + } else { + tcg_gen_add_tl(t2, t6, t2); + tcg_gen_add_tl(t3, t7, t3); + } + + tcg_gen_andi_tl(t5, t0, 0xff); + tcg_gen_deposit_tl(t5, t5, t1, 8, 8); + tcg_gen_deposit_tl(t5, t5, t2, 16, 8); + tcg_gen_deposit_tl(t5, t5, t3, 24, 8); + + gen_store_mxu_gpr(t5, XRd); +} + +/* * S32LDD XRa, Rb, S12 - Load a word from memory to XRF * S32LDDR XRa, Rb, S12 - Load a word from memory to XRF * in reversed byte seq. @@ -4884,6 +4956,9 @@ bool decode_ase_mxu(DisasContext *ctx, uint32_t insn) case OPC_MXU_Q16SCOP: gen_mxu_q16scop(ctx); break; + case OPC_MXU_Q8MADL: + gen_mxu_q8madl(ctx); + break; default: return false; } |