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sh2 drc, optimize standard division insns (default off, needs more scrutiny)

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kub 2020-07-14 00:07:15 +02:00
parent 48302a8a51
commit 368c918050
2 changed files with 331 additions and 12 deletions
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9
cpu/drc/emit_x86.c
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@ -349,6 +349,15 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI, // x86-64,i386 common
} else emith_or_r_r_r(d, s1, s2); \
} while (0)
#define emith_eor_r_r_r_lsr(d, s1, s2, lsrimm) do { \
if (lsrimm) { \
int tmp_ = rcache_get_tmp(); \
emith_lsr(tmp_, s2, lsrimm); \
emith_eor_r_r_r(d, s1, tmp_); \
rcache_free_tmp(tmp_); \
} else emith_eor_r_r_r(d, s1, s2); \
} while (0)
// _r_r_shift
#define emith_or_r_r_lsl(d, s, lslimm) \
emith_or_r_r_r_lsl(d, d, s, lslimm)