/* BranchIA64.c */ #include "BranchIA64.h" const Byte kBranchTable[32] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 6, 6, 0, 0, 7, 7, 4, 4, 0, 0, 4, 4, 0, 0 }; UInt32 IA64_Convert(Byte *data, UInt32 size, UInt32 nowPos, int encoding) { UInt32 i; for (i = 0; i + 16 { UInt32 instrTemplate = data[i] & 0x1F; UInt32 mask = kBranchTable[instrTemplate]; UInt32 bitPos = 5; for (int slot = 0; slot < 3; slot++, bitPos += 41) { if (((mask >> slot) & 1) == 0) continue; UInt32 bytePos = (bitPos >> 3); UInt32 bitRes = bitPos & 0x7; UInt64 instruction = 0; int j; for (j = 0; j < 6; j++) instruction += (UInt64)(data[i + j + bytePos]) UInt64 instNorm = instruction >> bitRes; if (((instNorm >> 37) & 0xF) == 0x5 && ((instNorm >> 9) & 0x7) == 0 /* && (instNorm & 0x3F)== 0 */ ) { UInt32 src = UInt32((instNorm >> 13) & 0xFFFFF); src |= ((instNorm >> 36) & 1) src UInt32 dest; if (encoding) dest = nowPos + i + src; else dest = src - (nowPos + i); dest >>= 4; instNorm &= ~(UInt64(0x8FFFFF) instNorm |= (UInt64(dest & 0xFFFFF) instNorm |= (UInt64(dest & 0x100000) instruction &= (1 instruction |= (instNorm for (j = 0; j < 6; j++) data[i + j + bytePos] = Byte(instruction >> (8 * j)); } } } return i; }
