diff options
| -rw-r--r-- | target/mips/tcg/mxu_translate.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/target/mips/tcg/mxu_translate.c b/target/mips/tcg/mxu_translate.c index 520747a597..e662acd5df 100644 --- a/target/mips/tcg/mxu_translate.c +++ b/target/mips/tcg/mxu_translate.c @@ -644,6 +644,16 @@ static inline void gen_store_mxu_gpr(TCGv t, unsigned int reg) } } +static inline void gen_extract_mxu_gpr(TCGv t, unsigned int reg, + unsigned int ofs, unsigned int len) +{ + if (reg == 0) { + tcg_gen_movi_tl(t, 0); + } else if (reg <= 15) { + tcg_gen_extract_tl(t, mxu_gpr[reg - 1], ofs, len); + } +} + /* MXU control register moves. */ static inline void gen_load_mxu_cr(TCGv t) { @@ -3004,10 +3014,10 @@ static void gen_mxu_q8adde(DisasContext *ctx, bool accumulate) TCGv t5 = tcg_temp_new(); if (XRa != 0) { - tcg_gen_extract_tl(t0, mxu_gpr[XRb - 1], 16, 8); - tcg_gen_extract_tl(t1, mxu_gpr[XRc - 1], 16, 8); - tcg_gen_extract_tl(t2, mxu_gpr[XRb - 1], 24, 8); - tcg_gen_extract_tl(t3, mxu_gpr[XRc - 1], 24, 8); + gen_extract_mxu_gpr(t0, XRb, 16, 8); + gen_extract_mxu_gpr(t1, XRc, 16, 8); + gen_extract_mxu_gpr(t2, XRb, 24, 8); + gen_extract_mxu_gpr(t3, XRc, 24, 8); if (aptn2 & 2) { tcg_gen_sub_tl(t0, t0, t1); tcg_gen_sub_tl(t2, t2, t3); @@ -3027,10 +3037,10 @@ static void gen_mxu_q8adde(DisasContext *ctx, bool accumulate) tcg_gen_or_tl(t4, t2, t0); } if (XRd != 0) { - tcg_gen_extract_tl(t0, mxu_gpr[XRb - 1], 0, 8); - tcg_gen_extract_tl(t1, mxu_gpr[XRc - 1], 0, 8); - tcg_gen_extract_tl(t2, mxu_gpr[XRb - 1], 8, 8); - tcg_gen_extract_tl(t3, mxu_gpr[XRc - 1], 8, 8); + gen_extract_mxu_gpr(t0, XRb, 0, 8); + gen_extract_mxu_gpr(t1, XRc, 0, 8); + gen_extract_mxu_gpr(t2, XRb, 8, 8); + gen_extract_mxu_gpr(t3, XRc, 8, 8); if (aptn2 & 1) { tcg_gen_sub_tl(t0, t0, t1); tcg_gen_sub_tl(t2, t2, t3); |