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Fleshed out SCC68070 definition in m68k core, for CD-i use in MESS [Harmony]

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This commit is contained in:
Ryan Holtz 2009-09-26 22:25:33 +00:00
parent 38674e46b5
commit 43898fb85f
2 changed files with 20 additions and 36 deletions
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11
src/emu/cpu/m68000/m68kcpu.c
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@ -1345,6 +1345,15 @@ CPU_GET_INFO( m68040 )
* SCC-68070 section
****************************************************************************/
static CPU_INIT( scc68070 )
{
m68ki_cpu_core *m68k = get_safe_token(device);
CPU_INIT_CALL(m68010);
m68k->cpu_type = CPU_TYPE_SCC070;
}
CPU_GET_INFO( scc68070 )
{
switch (state)
@ -1353,7 +1362,7 @@ CPU_GET_INFO( scc68070 )
case CPUINFO_INT_ADDRBUS_WIDTH_PROGRAM: info->i = 32; break;
/* --- the following bits of info are returned as pointers to data or functions --- */
case CPUINFO_FCT_INIT: info->init = CPU_INIT_NAME(m68000); break; //todo
case CPUINFO_FCT_INIT: info->init = CPU_INIT_NAME(scc68070); break;
/* --- the following bits of info are returned as NULL-terminated strings --- */
case DEVINFO_STR_NAME: strcpy(info->s, "SCC68070"); break;

45
src/emu/cpu/m68000/m68kcpu.h
View File

@ -73,12 +73,14 @@ typedef struct _m68ki_cpu_core m68ki_cpu_core;
#define FUNCTION_CODE_CPU_SPACE 7
/* CPU types for deciding what to emulate */
#define CPU_TYPE_000 1
#define CPU_TYPE_008 2
#define CPU_TYPE_010 4
#define CPU_TYPE_EC020 8
#define CPU_TYPE_020 16
#define CPU_TYPE_040 32
#define CPU_TYPE_000 1
#define CPU_TYPE_008 2
#define CPU_TYPE_010 4
#define CPU_TYPE_EC020 8
#define CPU_TYPE_020 16
#define CPU_TYPE_040 32
#define CPU_TYPE_060 64
#define CPU_TYPE_SCC070 128
/* Different ways to stop the CPU */
#define STOP_LEVEL_STOP 1
@ -228,7 +230,7 @@ typedef struct _m68ki_cpu_core m68ki_cpu_core;
#define CPU_TYPE_IS_010(A) ((A) == CPU_TYPE_010)
#define CPU_TYPE_IS_010_PLUS(A) ((A) & (CPU_TYPE_010 | CPU_TYPE_EC020 | CPU_TYPE_020 | CPU_TYPE_040))
#define CPU_TYPE_IS_010_LESS(A) ((A) & (CPU_TYPE_000 | CPU_TYPE_008 | CPU_TYPE_010))
#define CPU_TYPE_IS_010_LESS(A) ((A) & (CPU_TYPE_000 | CPU_TYPE_008 | CPU_TYPE_010 | CPU_TYPE_SCC070))
#define CPU_TYPE_IS_000(A) ((A) == CPU_TYPE_000 || (A) == CPU_TYPE_008)
@ -256,29 +258,6 @@ typedef struct _m68ki_cpu_core m68ki_cpu_core;
/* 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) \
if(setjmp(m68k->aerr_trap) != 0) \
{ \
@ -299,7 +278,7 @@ typedef struct _m68ki_cpu_core m68ki_cpu_core;
m68k->aerr_fc = FC; \
longjmp(m68k->aerr_trap, 1); \
}
#endif
/* -------------------------- EA / Operand Access ------------------------- */
@ -590,11 +569,7 @@ struct _m68ki_cpu_core
int reset_cycles;
UINT32 tracing;
#ifdef _BSD_SETJMP_H
sigjmp_buf aerr_trap;
#else
jmp_buf aerr_trap;
#endif
UINT32 aerr_address;
UINT32 aerr_write_mode;
UINT32 aerr_fc;