ShuriZma
/
xemu
mirror of https://github.com/xemu-project/xemu.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

target/mips/tx79: Introduce PCGT* (Parallel Compare for Greater Than) 

Introduce the 'Parallel Compare for Greater Than' opcodes:

 - PCGTB (Parallel Compare for Greater Than Byte)
 - PCGTH (Parallel Compare for Greater Than Halfword)
 - PCGTW (Parallel Compare for Greater Than Word)

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210309145653.743937-15-f4bug@amsat.org>
This commit is contained in:
Philippe Mathieu-Daudé 2021-02-13 14:22:32 +01:00
parent 82fbf9fc80
commit 8bd42c00f2
2 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
target/mips/tcg/tx79.decode
View File

@ -32,8 +32,11 @@ MTLO1 011100 ..... 0000000000 00000 010011 @rs
# MMI0 # MMI0
PSUBW 011100 ..... ..... ..... 00001 001000 @rs_rt_rd PSUBW 011100 ..... ..... ..... 00001 001000 @rs_rt_rd
PCGTW 011100 ..... ..... ..... 00010 001000 @rs_rt_rd
PSUBH 011100 ..... ..... ..... 00101 001000 @rs_rt_rd PSUBH 011100 ..... ..... ..... 00101 001000 @rs_rt_rd
PCGTH 011100 ..... ..... ..... 00110 001000 @rs_rt_rd
PSUBB 011100 ..... ..... ..... 01001 001000 @rs_rt_rd PSUBB 011100 ..... ..... ..... 01001 001000 @rs_rt_rd
PCGTB 011100 ..... ..... ..... 01010 001000 @rs_rt_rd
PEXTLW 011100 ..... ..... ..... 10010 001000 @rs_rt_rd PEXTLW 011100 ..... ..... ..... 10010 001000 @rs_rt_rd
PEXTLH 011100 ..... ..... ..... 10110 001000 @rs_rt_rd PEXTLH 011100 ..... ..... ..... 10110 001000 @rs_rt_rd
PEXTLB 011100 ..... ..... ..... 11010 001000 @rs_rt_rd PEXTLB 011100 ..... ..... ..... 11010 001000 @rs_rt_rd

18
target/mips/tcg/tx79_translate.c
View File

@ -285,18 +285,36 @@ static bool trans_parallel_compare(DisasContext *ctx, arg_rtype *a,
return true; return true;
} }
/* Parallel Compare for Greater Than Byte */
static bool trans_PCGTB(DisasContext *ctx, arg_rtype *a)
{
return trans_parallel_compare(ctx, a, TCG_COND_GE, 8);
}
/* Parallel Compare for Equal Byte */ /* Parallel Compare for Equal Byte */
static bool trans_PCEQB(DisasContext *ctx, arg_rtype *a) static bool trans_PCEQB(DisasContext *ctx, arg_rtype *a)
{ {
return trans_parallel_compare(ctx, a, TCG_COND_EQ, 8); return trans_parallel_compare(ctx, a, TCG_COND_EQ, 8);
} }
/* Parallel Compare for Greater Than Halfword */
static bool trans_PCGTH(DisasContext *ctx, arg_rtype *a)
{
return trans_parallel_compare(ctx, a, TCG_COND_GE, 16);
}
/* Parallel Compare for Equal Halfword */ /* Parallel Compare for Equal Halfword */
static bool trans_PCEQH(DisasContext *ctx, arg_rtype *a) static bool trans_PCEQH(DisasContext *ctx, arg_rtype *a)
{ {
return trans_parallel_compare(ctx, a, TCG_COND_EQ, 16); return trans_parallel_compare(ctx, a, TCG_COND_EQ, 16);
} }
/* Parallel Compare for Greater Than Word */
static bool trans_PCGTW(DisasContext *ctx, arg_rtype *a)
{
return trans_parallel_compare(ctx, a, TCG_COND_GE, 32);
}
/* Parallel Compare for Equal Word */ /* Parallel Compare for Equal Word */
static bool trans_PCEQW(DisasContext *ctx, arg_rtype *a) static bool trans_PCEQW(DisasContext *ctx, arg_rtype *a)
{ {