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m68k: don't save signal contexts on *BSD and Mac OS X [scarlet, R. Belmont]

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This commit is contained in:
R. Belmont 2009-09-16 03:25:28 +00:00
parent 41f39e21ef
commit 5e33f4fd5c
1 changed files with 28 additions and 1 deletions
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29
src/emu/cpu/m68000/m68kcpu.h
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@ -256,6 +256,29 @@ typedef struct _m68ki_cpu_core m68ki_cpu_core;
/* Address error */ /* Address error */
/* sigjmp() on Mac OS X and *BSD in general saves signal contexts and is super-slow, use sigsetjmp() to tell it not to */
#ifdef _BSD_SETJMP_H
#define m68ki_set_address_error_trap(m68k) \
if(sigsetjmp(m68k->aerr_trap, 0) != 0) \
{ \
m68ki_exception_address_error(m68k); \
if(m68k->stopped) \
{ \
if (m68k->remaining_cycles > 0) \
m68k->remaining_cycles = 0; \
return m68k->initial_cycles; \
} \
}
#define m68ki_check_address_error(m68k, ADDR, WRITE_MODE, FC) \
if((ADDR)&1) \
{ \
m68k->aerr_address = ADDR; \
m68k->aerr_write_mode = WRITE_MODE; \
m68k->aerr_fc = FC; \
siglongjmp(m68k->aerr_trap, 1); \
}
#else
#define m68ki_set_address_error_trap(m68k) \ #define m68ki_set_address_error_trap(m68k) \
if(setjmp(m68k->aerr_trap) != 0) \ if(setjmp(m68k->aerr_trap) != 0) \
{ \ { \
@ -276,7 +299,7 @@ typedef struct _m68ki_cpu_core m68ki_cpu_core;
m68k->aerr_fc = FC; \ m68k->aerr_fc = FC; \
longjmp(m68k->aerr_trap, 1); \ longjmp(m68k->aerr_trap, 1); \
} }
#endif
/* -------------------------- EA / Operand Access ------------------------- */ /* -------------------------- EA / Operand Access ------------------------- */
@ -567,7 +590,11 @@ struct _m68ki_cpu_core
int reset_cycles; int reset_cycles;
UINT32 tracing; UINT32 tracing;
#ifdef _BSD_SETJMP_H
sigjmp_buf aerr_trap;
#else
jmp_buf aerr_trap; jmp_buf aerr_trap;
#endif
UINT32 aerr_address; UINT32 aerr_address;
UINT32 aerr_write_mode; UINT32 aerr_write_mode;
UINT32 aerr_fc; UINT32 aerr_fc;