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Merge pull request #160 from Alexbeav/feat/overlay-region-floor-env

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runtime: PSX_OVERLAY_REGION_FLOOR override for streamed-over text ranges
This commit is contained in:
Matt Stanley
2026-08-19 22:13:31 -07:00
committed by GitHub
parent af01841d1c 4a30c5cc01
commit 75bede67fc
1 changed files with 14 additions and 0 deletions
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runtime/src/main.cpp
+14
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@@ -10897,6 +10897,20 @@ int main(int argc, char** argv) {
uint32_t text_end = (gc.load_address + gc.text_size) & 0x1FFFFFFFu;
if (text_end > 0x00010000u /* DIRTY_RAM_KERNEL_WINDOW_END */)
g_overlay_region_floor = text_end;
/* PSX_OVERLAY_REGION_FLOOR: per-title override for games whose TEXT
* range is itself partially overwritten by streamed level data
* (Driver 2 streams mission code over pages inside its static text
* range). Lowering the floor routes those regions through local-flow
* chaining and makes them overlay-cache candidates, so live-byte
* closures can own them instead of single-instruction dispatch
* thrash. Clamped to stay above the kernel window. */
{
const char* fenv = std::getenv("PSX_OVERLAY_REGION_FLOOR");
if (fenv && fenv[0]) {
uint32_t v = (uint32_t)strtoul(fenv, nullptr, 0) & 0x1FFFFFFFu;
if (v >= 0x00010000u) g_overlay_region_floor = v;
}
}
std::fprintf(stdout,
"psxrecomp: overlay_region_floor = 0x%05X (game text end)\n",
g_overlay_region_floor);