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Delay singlecore gpu interrupts

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Fixes Bomberman Jetters in single core mode.

When single core mode pauses the CPU to execute the GPU
FIFO it greedily executes the whole thing. Before this commit,
Finish and Token interrupts would happen instantly, not even
taking into account how long the current FIFO window has
taken to execute. The interrupts would be effectively backdated
to the start of this execution window.

This commit does two things: It pipes the current FIFO window
execution time though to the interrupt scheduling and it enforces
a minimum delay of 500 cycles before an interrupt will be fired.
This commit is contained in:
Scott Mansell
2021-11-25 11:01:37 +13:00
parent 0b81640dd1
commit f5c550e9cb
5 changed files with 29 additions and 22 deletions
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4
Source/Core/VideoCommon/OpcodeDecoding.cpp
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@ -221,11 +221,11 @@ u8* Run(DataReader src, u32* cycles, bool in_display_list)
const u32 bp_cmd = src.Read<u32>();
if constexpr (is_preprocess)
{
LoadBPRegPreprocess(bp_cmd);
LoadBPRegPreprocess(bp_cmd, total_cycles);
}
else
{
LoadBPReg(bp_cmd);
LoadBPReg(bp_cmd, total_cycles);
INCSTAT(g_stats.this_frame.num_bp_loads);
}
}