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32x: hook slave sh2, BIOS passes (not much else):

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@787 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-09-20 21:05:58 +00:00
parent 4ea707e1e3
commit b78efee2b2
5 changed files with 148 additions and 97 deletions
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6
cpu/sh2mame/sh2.h
View file

@ -45,16 +45,16 @@ typedef struct
UINT32 test_irq;
int pending_irq;
void (*irq_callback)(int level);
void (*irq_callback)(int id, int level);
int is_slave;
// XXX: unused, will we ever use?
int internal_irq_level;
int is_slave;
} SH2;
extern int sh2_icount;
void sh2_init(SH2 *sh2);
void sh2_init(SH2 *sh2, int is_slave);
void sh2_reset(SH2 *sh2);
int sh2_execute(SH2 *sh2_, int cycles);
void sh2_irl_irq(SH2 *sh2, int level);

29
cpu/sh2mame/sh2pico.c
View file

@ -9,19 +9,19 @@ typedef unsigned short UINT16;
typedef unsigned char UINT8;
// pico memhandlers
unsigned int p32x_sh2_read8(unsigned int a);
unsigned int p32x_sh2_read16(unsigned int a);
unsigned int p32x_sh2_read32(unsigned int a);
void p32x_sh2_write8(unsigned int a, unsigned int d);
void p32x_sh2_write16(unsigned int a, unsigned int d);
void p32x_sh2_write32(unsigned int a, unsigned int d);
unsigned int p32x_sh2_read8(unsigned int a, int id);
unsigned int p32x_sh2_read16(unsigned int a, int id);
unsigned int p32x_sh2_read32(unsigned int a, int id);
void p32x_sh2_write8(unsigned int a, unsigned int d, int id);
void p32x_sh2_write16(unsigned int a, unsigned int d, int id);
void p32x_sh2_write32(unsigned int a, unsigned int d, int id);
#define RB p32x_sh2_read8
#define RW p32x_sh2_read16
#define RL p32x_sh2_read32
#define WB p32x_sh2_write8
#define WW p32x_sh2_write16
#define WL p32x_sh2_write32
#define RB(a) p32x_sh2_read8(a,sh2->is_slave)
#define RW(a) p32x_sh2_read16(a,sh2->is_slave)
#define RL(a) p32x_sh2_read32(a,sh2->is_slave)
#define WB(a,d) p32x_sh2_write8(a,d,sh2->is_slave)
#define WW(a,d) p32x_sh2_write16(a,d,sh2->is_slave)
#define WL(a,d) p32x_sh2_write32(a,d,sh2->is_slave)
// some stuff from sh2comn.h
#define T 0x00000001
@ -114,9 +114,10 @@ int sh2_execute(SH2 *sh2_, int cycles)
return cycles - sh2_icount;
}
void sh2_init(SH2 *sh2)
void sh2_init(SH2 *sh2, int is_slave)
{
memset(sh2, 0, sizeof(*sh2));
sh2->is_slave = is_slave;
}
void sh2_irl_irq(SH2 *sh2, int level)
@ -129,7 +130,7 @@ void sh2_irl_irq(SH2 *sh2, int level)
/* masked */
return;
sh2->irq_callback(level);
sh2->irq_callback(sh2->is_slave, level);
vector = 64 + level/2;
sh2->r[15] -= 4;