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| author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2021-02-13 14:40:18 +0100 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2021-07-11 22:29:54 +0200 |
| commit | 709324dc05a17755d43c315e43a8ec9da04fc37b (patch) | |
| tree | 1df3e7cd6212abbad05dc8cfe60966deae922972 | |
| parent | 2d4ab117bebb90ad7e7e65629f99f9e82ba32053 (diff) | |
| download | focaccia-qemu-709324dc05a17755d43c315e43a8ec9da04fc37b.tar.gz focaccia-qemu-709324dc05a17755d43c315e43a8ec9da04fc37b.zip | |
target/mips/tx79: Introduce PSUB* opcodes (Parallel Subtract)
Introduce the 'Parallel Subtract' opcodes: - PSUBB (Parallel Subtract Byte) - PSUBH (Parallel Subtract Halfword) - PSUBW (Parallel Subtract Word) Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <820210309145653.743937-11-f4bug@amsat.org>
Diffstat (limited to '')
| -rw-r--r-- | target/mips/tcg/tx79.decode | 6 | ||||
| -rw-r--r-- | target/mips/tcg/tx79_translate.c | 19 |
2 files changed, 25 insertions, 0 deletions
diff --git a/target/mips/tcg/tx79.decode b/target/mips/tcg/tx79.decode index 26c80b9bce..d1c07c7d90 100644 --- a/target/mips/tcg/tx79.decode +++ b/target/mips/tcg/tx79.decode @@ -29,6 +29,12 @@ MTHI1 011100 ..... 0000000000 00000 010001 @rs MFLO1 011100 0000000000 ..... 00000 010010 @rd MTLO1 011100 ..... 0000000000 00000 010011 @rs +# MMI0 + +PSUBW 011100 ..... ..... ..... 00001 001000 @rs_rt_rd +PSUBH 011100 ..... ..... ..... 00101 001000 @rs_rt_rd +PSUBB 011100 ..... ..... ..... 01001 001000 @rs_rt_rd + # MMI2 PCPYLD 011100 ..... ..... ..... 01110 001001 @rs_rt_rd diff --git a/target/mips/tcg/tx79_translate.c b/target/mips/tcg/tx79_translate.c index 00364f10d4..3abd1d92e7 100644 --- a/target/mips/tcg/tx79_translate.c +++ b/target/mips/tcg/tx79_translate.c @@ -9,6 +9,7 @@ #include "qemu/osdep.h" #include "tcg/tcg-op.h" +#include "tcg/tcg-op-gvec.h" #include "exec/helper-gen.h" #include "translate.h" @@ -144,6 +145,24 @@ static bool trans_parallel_arith(DisasContext *ctx, arg_rtype *a, return true; } +/* Parallel Subtract Byte */ +static bool trans_PSUBB(DisasContext *ctx, arg_rtype *a) +{ + return trans_parallel_arith(ctx, a, tcg_gen_vec_sub8_i64); +} + +/* Parallel Subtract Halfword */ +static bool trans_PSUBH(DisasContext *ctx, arg_rtype *a) +{ + return trans_parallel_arith(ctx, a, tcg_gen_vec_sub16_i64); +} + +/* Parallel Subtract Word */ +static bool trans_PSUBW(DisasContext *ctx, arg_rtype *a) +{ + return trans_parallel_arith(ctx, a, tcg_gen_vec_sub32_i64); +} + /* * Min/Max (4 instructions) * ------------------------ |