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Allowing dynamic register access checks to be disabled.

This commit is contained in:
Ben Vanik 2013-12-07 13:15:15 -08:00
parent d8cc9fb0b4
commit 1dc356cb4d
1 changed files with 13 additions and 8 deletions
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21
src/alloy/backend/ivm/ivm_intcode.cc
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@ -21,6 +21,11 @@ using namespace alloy::hir;
using namespace alloy::runtime; using namespace alloy::runtime;
// TODO(benvanik): make a compile time flag?
//#define DYNAMIC_REGISTER_ACCESS_CHECK(address) false
#define DYNAMIC_REGISTER_ACCESS_CHECK(address) ((address & 0xFF000000) == 0x7F000000)
namespace alloy { namespace alloy {
namespace backend { namespace backend {
namespace ivm { namespace ivm {
@ -1133,7 +1138,7 @@ int Translate_STORE_CONTEXT(TranslationContext& ctx, Instr* i) {
uint32_t IntCode_LOAD_I8(IntCodeState& ics, const IntCode* i) { uint32_t IntCode_LOAD_I8(IntCodeState& ics, const IntCode* i) {
uint32_t address = ics.rf[i->src1_reg].u32; uint32_t address = ics.rf[i->src1_reg].u32;
if ((address & 0xFF000000) == 0x7F000000) { if (DYNAMIC_REGISTER_ACCESS_CHECK(address)) {
return IntCode_LOAD_REGISTER_I8_DYNAMIC(ics, i); return IntCode_LOAD_REGISTER_I8_DYNAMIC(ics, i);
} }
DPRINT("%d (%X) = load.i8 %.8X\n", DPRINT("%d (%X) = load.i8 %.8X\n",
@ -1146,7 +1151,7 @@ uint32_t IntCode_LOAD_I8(IntCodeState& ics, const IntCode* i) {
} }
uint32_t IntCode_LOAD_I16(IntCodeState& ics, const IntCode* i) { uint32_t IntCode_LOAD_I16(IntCodeState& ics, const IntCode* i) {
uint32_t address = ics.rf[i->src1_reg].u32; uint32_t address = ics.rf[i->src1_reg].u32;
if ((address & 0xFF000000) == 0x7F000000) { if (DYNAMIC_REGISTER_ACCESS_CHECK(address)) {
return IntCode_LOAD_REGISTER_I16_DYNAMIC(ics, i); return IntCode_LOAD_REGISTER_I16_DYNAMIC(ics, i);
} }
DPRINT("%d (%X) = load.i16 %.8X\n", DPRINT("%d (%X) = load.i16 %.8X\n",
@ -1159,7 +1164,7 @@ uint32_t IntCode_LOAD_I16(IntCodeState& ics, const IntCode* i) {
} }
uint32_t IntCode_LOAD_I32(IntCodeState& ics, const IntCode* i) { uint32_t IntCode_LOAD_I32(IntCodeState& ics, const IntCode* i) {
uint32_t address = ics.rf[i->src1_reg].u32; uint32_t address = ics.rf[i->src1_reg].u32;
if ((address & 0xFF000000) == 0x7F000000) { if (DYNAMIC_REGISTER_ACCESS_CHECK(address)) {
return IntCode_LOAD_REGISTER_I32_DYNAMIC(ics, i); return IntCode_LOAD_REGISTER_I32_DYNAMIC(ics, i);
} }
DPRINT("%d (%X) = load.i32 %.8X\n", DPRINT("%d (%X) = load.i32 %.8X\n",
@ -1172,7 +1177,7 @@ uint32_t IntCode_LOAD_I32(IntCodeState& ics, const IntCode* i) {
} }
uint32_t IntCode_LOAD_I64(IntCodeState& ics, const IntCode* i) { uint32_t IntCode_LOAD_I64(IntCodeState& ics, const IntCode* i) {
uint32_t address = ics.rf[i->src1_reg].u32; uint32_t address = ics.rf[i->src1_reg].u32;
if ((address & 0xFF000000) == 0x7F000000) { if (DYNAMIC_REGISTER_ACCESS_CHECK(address)) {
return IntCode_LOAD_REGISTER_I64(ics, i); return IntCode_LOAD_REGISTER_I64(ics, i);
} }
DPRINT("%lld (%llX) = load.i64 %.8X\n", DPRINT("%lld (%llX) = load.i64 %.8X\n",
@ -1226,7 +1231,7 @@ int Translate_LOAD(TranslationContext& ctx, Instr* i) {
uint32_t IntCode_STORE_I8(IntCodeState& ics, const IntCode* i) { uint32_t IntCode_STORE_I8(IntCodeState& ics, const IntCode* i) {
uint32_t address = ics.rf[i->src1_reg].u32; uint32_t address = ics.rf[i->src1_reg].u32;
if ((address & 0xFF000000) == 0x7F000000) { if (DYNAMIC_REGISTER_ACCESS_CHECK(address)) {
return IntCode_STORE_REGISTER_I8_DYNAMIC(ics, i); return IntCode_STORE_REGISTER_I8_DYNAMIC(ics, i);
} }
DPRINT("store.i8 %.8X = %d (%X)\n", DPRINT("store.i8 %.8X = %d (%X)\n",
@ -1237,7 +1242,7 @@ uint32_t IntCode_STORE_I8(IntCodeState& ics, const IntCode* i) {
} }
uint32_t IntCode_STORE_I16(IntCodeState& ics, const IntCode* i) { uint32_t IntCode_STORE_I16(IntCodeState& ics, const IntCode* i) {
uint32_t address = ics.rf[i->src1_reg].u32; uint32_t address = ics.rf[i->src1_reg].u32;
if ((address & 0xFF000000) == 0x7F000000) { if (DYNAMIC_REGISTER_ACCESS_CHECK(address)) {
return IntCode_STORE_REGISTER_I16_DYNAMIC(ics, i); return IntCode_STORE_REGISTER_I16_DYNAMIC(ics, i);
} }
DPRINT("store.i16 %.8X = %d (%X)\n", DPRINT("store.i16 %.8X = %d (%X)\n",
@ -1248,7 +1253,7 @@ uint32_t IntCode_STORE_I16(IntCodeState& ics, const IntCode* i) {
} }
uint32_t IntCode_STORE_I32(IntCodeState& ics, const IntCode* i) { uint32_t IntCode_STORE_I32(IntCodeState& ics, const IntCode* i) {
uint32_t address = ics.rf[i->src1_reg].u32; uint32_t address = ics.rf[i->src1_reg].u32;
if ((address & 0xFF000000) == 0x7F000000) { if (DYNAMIC_REGISTER_ACCESS_CHECK(address)) {
return IntCode_STORE_REGISTER_I32_DYNAMIC(ics, i); return IntCode_STORE_REGISTER_I32_DYNAMIC(ics, i);
} }
DPRINT("store.i32 %.8X = %d (%X)\n", DPRINT("store.i32 %.8X = %d (%X)\n",
@ -1259,7 +1264,7 @@ uint32_t IntCode_STORE_I32(IntCodeState& ics, const IntCode* i) {
} }
uint32_t IntCode_STORE_I64(IntCodeState& ics, const IntCode* i) { uint32_t IntCode_STORE_I64(IntCodeState& ics, const IntCode* i) {
uint32_t address = ics.rf[i->src1_reg].u32; uint32_t address = ics.rf[i->src1_reg].u32;
if ((address & 0xFF000000) == 0x7F000000) { if (DYNAMIC_REGISTER_ACCESS_CHECK(address)) {
return IntCode_STORE_REGISTER_I64_DYNAMIC(ics, i); return IntCode_STORE_REGISTER_I64_DYNAMIC(ics, i);
} }
DPRINT("store.i64 %.8X = %lld (%llX)\n", DPRINT("store.i64 %.8X = %lld (%llX)\n",