diff options
| author | cinap_lenrek <cinap_lenrek@centraldogma> | 2011-04-29 03:56:20 +0000 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@centraldogma> | 2011-04-29 03:56:20 +0000 |
| commit | c1305acf9f82393a14a4cb318b36ccdff79f8123 (patch) | |
| tree | 707532fd1a0449e01fc81557153df6503af6ea8d /sys/src/cmd/aux/realemu | |
| parent | 4e9d8a7435e7c91618282b68b4247f6f9b5bd395 (diff) | |
realemu: bittest memory operands
Diffstat (limited to 'sys/src/cmd/aux/realemu')
| -rw-r--r-- | sys/src/cmd/aux/realemu/xec.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/sys/src/cmd/aux/realemu/xec.c b/sys/src/cmd/aux/realemu/xec.c index c39ad27b5..bbe8bcfdd 100644 --- a/sys/src/cmd/aux/realemu/xec.c +++ b/sys/src/cmd/aux/realemu/xec.c @@ -485,7 +485,7 @@ opror(Cpu *cpu, Inst *i) } static void -opbt(Cpu *cpu, Inst *i) +opbittest(Cpu *cpu, Inst *i) { ulong a, m; int n, s; @@ -495,9 +495,12 @@ opbt(Cpu *cpu, Inst *i) x = i->a1; s = x->len*8; if(x->tag == TMEM){ + int z; + x = adup(x); - x->off += n / s; - x->off &= mask(i->alen*8); + x->off += (n / s) * x->len; + z = i->alen*8; + x->off &= mask(z); } a = ar(x); n &= s-1; @@ -1208,10 +1211,10 @@ static void (*exctab[NUMOP])(Cpu *cpu, Inst*) = { [OROL] = oprol, [OROR] = opror, - [OBT] = opbt, - [OBTS] = opbt, - [OBTR] = opbt, - [OBTC] = opbt, + [OBT] = opbittest, + [OBTS] = opbittest, + [OBTR] = opbittest, + [OBTC] = opbittest, [OBSF] = opbitscan, [OBSR] = opbitscan, |