Matthew Stanley
c264a704ec
Extract the useful diagnostic from PR #13 into an opt-in, title-agnostic boot write-range trace with TCP-queryable context. Co-authored-by: NyperYuhgard <93950153+NyperYuhgard@users.noreply.github.com>
1.4 KiB
PR #13 generic boot write-watch provenance
Extracted from NyperYuhgard's PSXrecomp PR #13, commit
b07cb79251ecdca85aca94ba5dbfd731b67e10a7.
The upstream change identified a suspicious Crash Bash write by adding an
environment-gated watcher for the hard-coded physical range
0x000B3A80..0x000B3AFF. This extraction preserves the useful behavior while
removing the title-specific address and stderr-only reporting:
PSX_WTRACE_BOOTaccepts one or more caller-selected half-open ranges.- Ranges feed the existing boot-pinned write trace from instruction zero.
- Retained records include PC, return address, register context, frame, width, and DMA attribution and remain queryable later through the TCP debug server.
The companion misaligned-dispatch diagnostics from the same source commit were previously extracted in PR #28.
Reproduction note
A verified retail Greatest Hits Crash Bash build exercised with the generic
range did write the watched address, confirming that the address and mechanism
are plausible. In that build, however, the nonzero write at physical
0x000B3AC4 was the MIPS instruction word 0x8C65B690, written by guest PC
0x80048FA8 at frame 395. It did not reproduce the originally reported
0x6766BD35 pointer value. For that reason this extraction exposes the
diagnostic generically and does not encode the unconfirmed title-specific
interpretation.