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XMM registers are not preserved across function calls, and should be flushed & discarded by the recompiler prior to calling external functions. Fixes graphics issues in some games (eg World Cup 98 title/menus).

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SarahW 2019-05-05 14:49:10 +01:00
commit 5e35e48ec7
7 changed files with 135 additions and 98 deletions
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2
src/codegen_backend_x86-64_defs.h
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@ -44,7 +44,7 @@
#define REG_XMM6 6
#define REG_XMM7 7
#define REG_XMM_TEMP REG_XMM7
#define REG_XMM_TEMP REG_XMM0
#define CODEGEN_HOST_REGS 3
#define CODEGEN_HOST_FP_REGS 7