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Adding vector add tests and fixing bugs found (still broken).

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This commit is contained in:
Ben Vanik
2014-08-23 22:09:30 -07:00
parent 96007049d2
commit 28bae464c2
4 changed files with 297 additions and 3 deletions
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4
src/alloy/backend/ivm/ivm_intcode.cc
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@@ -2630,7 +2630,7 @@ uint32_t Translate_VECTOR_ADD_I32(IntCodeState& ics, const IntCode* i) {
if (arithmetic_flags & ARITHMETIC_SATURATE) {
if (arithmetic_flags & ARITHMETIC_UNSIGNED) {
for (int n = 0; n < 4; n++) {
uint64_t v = VECI4(src1, n) + VECI4(src2, n);
uint64_t v = (uint64_t)VECI4(src1, n) + (uint64_t)VECI4(src2, n);
if (v > 0xFFFFFFFF) {
VECI4(dest, n) = 0xFFFFFFFF;
ics.did_saturate = 1;
@@ -2640,7 +2640,7 @@ uint32_t Translate_VECTOR_ADD_I32(IntCodeState& ics, const IntCode* i) {
}
} else {
for (int n = 0; n < 4; n++) {
int64_t v = (int32_t)VECI4(src1, n) + (int32_t)VECI4(src2, n);
int64_t v = (int64_t)(int32_t)VECI4(src1, n) + (int64_t)(int32_t)VECI4(src2, n);
if (v > 0x7FFFFFFF) {
VECI4(dest, n) = 0x7FFFFFFF;
ics.did_saturate = 1;