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| author | Laurent Vivier <laurent@vivier.eu> | 2016-01-17 12:51:45 +0100 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2016-10-28 10:38:48 +0200 |
| commit | 3c980d2ef664e6d5a1a0c98aca4d11d33b17ca59 (patch) | |
| tree | 3a7ee036b0aabda13ca48688a4b1c75b350059ac /target-m68k | |
| parent | 415f4b62eb4629bd3702e6fb8aa51437a92983ff (diff) | |
| download | qemu-3c980d2ef664e6d5a1a0c98aca4d11d33b17ca59.tar.gz qemu-3c980d2ef664e6d5a1a0c98aca4d11d33b17ca59.tar.bz2 qemu-3c980d2ef664e6d5a1a0c98aca4d11d33b17ca59.zip | |
target-m68k: some bit ops cleanup
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-m68k')
| -rw-r--r-- | target-m68k/translate.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/target-m68k/translate.c b/target-m68k/translate.c index b82ebf39eb..cf9b228767 100644 --- a/target-m68k/translate.c +++ b/target-m68k/translate.c @@ -1290,39 +1290,36 @@ DISAS_INSN(bitop_reg) else opsize = OS_LONG; op = (insn >> 6) & 3; - - gen_flush_flags(s); - SRC_EA(env, src1, opsize, 0, op ? &addr: NULL); - src2 = DREG(insn, 9); - dest = tcg_temp_new(); - tmp = tcg_temp_new(); + gen_flush_flags(s); + src2 = tcg_temp_new(); if (opsize == OS_BYTE) - tcg_gen_andi_i32(tmp, src2, 7); + tcg_gen_andi_i32(src2, DREG(insn, 9), 7); else - tcg_gen_andi_i32(tmp, src2, 31); + tcg_gen_andi_i32(src2, DREG(insn, 9), 31); - src2 = tcg_const_i32(1); - tcg_gen_shl_i32(src2, src2, tmp); - tcg_temp_free(tmp); + tmp = tcg_const_i32(1); + tcg_gen_shl_i32(tmp, tmp, src2); + tcg_temp_free(src2); - tcg_gen_and_i32(QREG_CC_Z, src1, src2); + tcg_gen_and_i32(QREG_CC_Z, src1, tmp); + dest = tcg_temp_new(); switch (op) { case 1: /* bchg */ - tcg_gen_xor_i32(dest, src1, src2); + tcg_gen_xor_i32(dest, src1, tmp); break; case 2: /* bclr */ - tcg_gen_andc_i32(dest, src1, src2); + tcg_gen_andc_i32(dest, src1, tmp); break; case 3: /* bset */ - tcg_gen_or_i32(dest, src1, src2); + tcg_gen_or_i32(dest, src1, tmp); break; default: /* btst */ break; } - tcg_temp_free(src2); + tcg_temp_free(tmp); if (op) { DEST_EA(env, insn, opsize, dest, &addr); } @@ -1406,17 +1403,16 @@ DISAS_INSN(bitop_im) return; } - gen_flush_flags(s); - SRC_EA(env, src1, opsize, 0, op ? &addr: NULL); + gen_flush_flags(s); if (opsize == OS_BYTE) bitnum &= 7; else bitnum &= 31; mask = 1 << bitnum; - tcg_gen_andi_i32(QREG_CC_Z, src1, mask); + tcg_gen_andi_i32(QREG_CC_Z, src1, mask); if (op) { tmp = tcg_temp_new(); |