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mask displacement in instruction format D; fix MyArchitecture::frameIp to look for return address at an 8-byte offset from the stack pointer

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This commit is contained in:
Joel Dice 2009-02-24 08:04:55 -07:00
parent eef5047a52
commit b292cbb7f4
1 changed files with 2 additions and 2 deletions
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4
src/powerpc.cpp
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@ -34,7 +34,7 @@ inline int hi8(int64_t i) { return lo8(i >> 8); }
namespace isa {
// INSTRUCTION FORMATS
inline int D(int op, int rt, int ra, int d) { return op<<26|rt<<21|ra<<16|d; }
inline int D(int op, int rt, int ra, int d) { return op<<26|rt<<21|ra<<16|(d & 0xFFFF); }
inline int DS(int op, int rt, int ra, int ds, int xo) { return op<<26|rt<<21|ra<<16|ds<<2|xo; }
inline int I(int op, int li, int aa, int lk) { return op<<26|li<<2|aa<<1|lk; }
inline int B(int op, int bo, int bi, int bd, int aa, int lk) { return op<<26|bo<<21|bi<<16|bd<<2|aa<<1|lk; }
@ -1018,7 +1018,7 @@ class MyArchitecture: public Assembler::Architecture {
}
virtual void* frameIp(void* stack) {
return stack ? *static_cast<void**>(stack) : 0;
return stack ? static_cast<void**>(stack)[2] : 0;
}
virtual unsigned frameHeaderSize() {