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fix matchvalueandref freeze

This commit is contained in:
disjtqz 2023-09-18 16:34:36 -04:00 committed by Radosław Gliński
parent 9554f82c10
commit 3876a1632a
1 changed files with 0 additions and 23 deletions
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23
src/xenia/gpu/pm4_command_processor_implement.h
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@ -690,34 +690,11 @@ static bool MatchValueAndRef(uint32_t value, uint32_t ref, uint32_t wait_info) {
// we do technically have more instructions executed vs the switch case method,
// but we have no mispredicts and most of our instructions are 0.25/0.3
// throughput
#if 1
uint32_t value_minus_ref =
static_cast<uint32_t>(static_cast<int32_t>(value - ref) >> 31);
uint32_t ref_minus_value =
static_cast<uint32_t>(static_cast<int32_t>(ref - value) >> 31);
uint32_t eqmask = ~(value_minus_ref | ref_minus_value);
uint32_t nemask = (value_minus_ref | ref_minus_value);
uint32_t value_lt_mask = value_minus_ref;
uint32_t value_gt_mask = ref_minus_value;
uint32_t value_lte_mask = value_lt_mask | eqmask;
uint32_t value_gte_mask = value_gt_mask | eqmask;
uint32_t bits_for_selecting =
(value_lt_mask & (1 << 1)) | (value_lte_mask & (1 << 2)) |
(eqmask & (1 << 3)) | (nemask & (1 << 4)) | (value_gte_mask & (1 << 5)) |
(value_gt_mask & (1 << 6)) | (1 << 7);
return (bits_for_selecting >> (wait_info & 7)) & 1;
#else
return ((((value < ref) << 1) | ((value <= ref) << 2) |
((value == ref) << 3) | ((value != ref) << 4) |
((value >= ref) << 5) | ((value > ref) << 6) | (1 << 7)) >>
(wait_info & 7)) &
1;
#endif
}
XE_NOINLINE
bool COMMAND_PROCESSOR::ExecutePacketType3_WAIT_REG_MEM(