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fix shift instruction implementations on ARM

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Unlike x86, ARM does not implicitly mask the shift value, so we must
do so explicitly.
This commit is contained in:
Joel Dice
2012-08-11 19:09:03 +00:00
parent 2687333a37
commit 69ffa28e1b
4 changed files with 136 additions and 32 deletions
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12
src/interpret.cpp
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@ -1930,14 +1930,14 @@ interpret3(Thread* t, const int base)
int32_t b = popInt(t);
int32_t a = popInt(t);
pushInt(t, a << b);
pushInt(t, a << (b & 0x1F));
} goto loop;
case ishr: {
int32_t b = popInt(t);
int32_t a = popInt(t);
pushInt(t, a >> b);
pushInt(t, a >> (b & 0x1F));
} goto loop;
case istore:
@ -1976,7 +1976,7 @@ interpret3(Thread* t, const int base)
int32_t b = popInt(t);
uint32_t a = popInt(t);
pushInt(t, a >> b);
pushInt(t, a >> (b & 0x1F));
} goto loop;
case ixor: {
@ -2238,14 +2238,14 @@ interpret3(Thread* t, const int base)
int32_t b = popInt(t);
int64_t a = popLong(t);
pushLong(t, a << b);
pushLong(t, a << (b & 0x3F));
} goto loop;
case lshr: {
int32_t b = popInt(t);
int64_t a = popLong(t);
pushLong(t, a >> b);
pushLong(t, a >> (b & 0x3F));
} goto loop;
case lstore:
@ -2284,7 +2284,7 @@ interpret3(Thread* t, const int base)
int64_t b = popInt(t);
uint64_t a = popLong(t);
pushLong(t, a >> b);
pushLong(t, a >> (b & 0x3F));
} goto loop;
case lxor: {