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32x: split sh2 code, compiler stub

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@810 be3aeb3a-fb24-0410-a615-afba39da0efa
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notaz 2009-10-08 19:47:31 +00:00
parent 1d29444dfc
commit 4139770121
16 changed files with 227 additions and 205 deletions
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48
cpu/sh2/sh2.h Normal file
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#ifndef __SH2_H__
#define __SH2_H__
// pico memhandlers
// XXX: move somewhere else
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);
typedef struct
{
unsigned int r[16];
unsigned int ppc;
unsigned int pc;
unsigned int pr;
unsigned int sr;
unsigned int gbr, vbr;
unsigned int mach, macl;
unsigned int ea;
unsigned int delay;
unsigned int test_irq;
int pending_irl;
int pending_int_irq; // internal irq
int pending_int_vector;
void (*irq_callback)(int id, int level);
int is_slave;
int icount; // cycles left in current timeslice
unsigned int cycles_aim; // subtract sh2_icount to get global counter
unsigned int cycles_done;
} SH2;
extern SH2 *sh2; // active sh2
void sh2_init(SH2 *sh2, int is_slave);
void sh2_reset(SH2 *sh2);
void sh2_irl_irq(SH2 *sh2, int level);
void sh2_internal_irq(SH2 *sh2, int level, int vector);
void sh2_execute(SH2 *sh2, int cycles);
#endif /* __SH2_H__ */