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author Vas Crabb <vas@vastheman.com>2025-04-17 05:39:07 +1000
committer Vas Crabb <vas@vastheman.com>2025-04-17 05:40:59 +1000
commit1f6f0197df571e0604650295129712275840fb2b (patch)
treed683c79dd30eec055dbf1c1e63f90fc454f4d98f /src/osd/modules/lib/osdlib_unix.cpp
parentc6313f80497d187e36636fc29653f398fe5a9b5e (diff)
cpu/drcbex64.cpp: Always keep UML floating point registers in memory for SysV ABI.
This was changed in 822c3b4232b0a66ce92bba7a24084678004af444 but it never worked for multiple reasons: * The comment mentions saving around CALLC, but there is no code to save and restore around CALLC, DEBUG and RECOVER, all of which can clobber callee-saved registers. * Numerous opcode handlers assume XMM0 and XMM1 can be used as scratch registers, but this change mapped them to UML F0 and F1. This resulted in F0 and F1 getting clobbered by many UML instructions.
Diffstat (limited to 'src/osd/modules/lib/osdlib_unix.cpp')
0 files changed, 0 insertions, 0 deletions