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Implemented branches in the interpreter

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Fixed x86 immediate encoding
This commit is contained in:
tevador
2019-03-20 23:38:37 +01:00
parent 174754cb2b
commit 007f8599b9
6 changed files with 128 additions and 80 deletions
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src/JitCompilerX86.cpp
+2 -3
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@@ -171,7 +171,7 @@ namespace RandomX {
static const uint8_t REX_ANDPS_XMM12[] = { 0x45, 0x0F, 0x54, 0xE5, 0x45, 0x0F, 0x56, 0xE6 };
static const uint8_t REX_PADD[] = { 0x66, 0x44, 0x0f };
static const uint8_t PADD_OPCODES[] = { 0xfc, 0xfd, 0xfe, 0xd4 };
static const uint8_t REX_ADD_I[] = { 0x49, 0x83 };
static const uint8_t REX_ADD_I[] = { 0x49, 0x81 };
static const uint8_t REX_TEST[] = { 0x49, 0xF7 };
static const uint8_t JZ[] = { 0x0f, 0x84 };
@@ -673,10 +673,9 @@ namespace RandomX {
const int conditionMask = ((1 << RANDOMX_CONDITION_BITS) - 1) << shift;
int reg = getConditionRegister();
int target = registerUsage[reg] + 1;
registerUsage[reg] = i;
emit(REX_ADD_I);
emitByte(0xc0 + reg);
emitByte(1 << shift);
emit32(1 << shift);
emit(REX_TEST);
emitByte(0xc0 + reg);
emit32(conditionMask);