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32x: drc: inline dispatcher and irq handling; do write-caused irqs

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@849 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-12-29 22:43:10 +00:00
parent efd100fc0a
commit e05b81fc5b
10 changed files with 535 additions and 246 deletions
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23
cpu/sh2/sh2.h
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@ -1,6 +1,12 @@
#ifndef __SH2_H__
#define __SH2_H__
#if !defined(REGPARM) && defined(__i386__)
#define REGPARM(x) __attribute__((regparm(x)))
#else
#define REGPARM(x)
#endif
// registers - matches structure order
typedef enum {
SHR_R0 = 0, SHR_SP = 15,
@ -8,7 +14,7 @@ typedef enum {
SHR_GBR, SHR_VBR, SHR_MACH, SHR_MACL,
} sh2_reg_e;
typedef struct
typedef struct SH2_
{
unsigned int r[16]; // 00
unsigned int pc; // 40
@ -26,6 +32,7 @@ typedef struct
// drc stuff
int drc_tmp; // 70
int irq_cycles;
// interpreter stuff
int icount; // cycles left in current timeslice
@ -37,7 +44,7 @@ typedef struct
int pending_irl;
int pending_int_irq; // internal irq
int pending_int_vector;
void (*irq_callback)(int id, int level);
int REGPARM(2) (*irq_callback)(struct SH2_ *sh2, int level);
int is_slave;
unsigned int cycles_aim; // subtract sh2_icount to get global counter
@ -57,17 +64,11 @@ void sh2_execute(SH2 *sh2, int cycles);
// pico memhandlers
// XXX: move somewhere else
#if !defined(REGPARM) && defined(__i386__)
#define REGPARM(x) __attribute__((regparm(x)))
#else
#define REGPARM(x)
#endif
unsigned int REGPARM(2) p32x_sh2_read8(unsigned int a, SH2 *sh2);
unsigned int REGPARM(2) p32x_sh2_read16(unsigned int a, SH2 *sh2);
unsigned int REGPARM(2) p32x_sh2_read32(unsigned int a, SH2 *sh2);
void REGPARM(3) p32x_sh2_write8(unsigned int a, unsigned int d, SH2 *sh2);
void REGPARM(3) p32x_sh2_write16(unsigned int a, unsigned int d, SH2 *sh2);
void REGPARM(3) p32x_sh2_write32(unsigned int a, unsigned int d, SH2 *sh2);
int REGPARM(3) p32x_sh2_write8 (unsigned int a, unsigned int d, SH2 *sh2);
int REGPARM(3) p32x_sh2_write16(unsigned int a, unsigned int d, SH2 *sh2);
int REGPARM(3) p32x_sh2_write32(unsigned int a, unsigned int d, SH2 *sh2);
#endif /* __SH2_H__ */