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32x: start reworking sheduling

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This commit is contained in:
notaz 2013-07-07 01:05:11 +03:00
parent 9b5713af95
commit ed4402a7df
17 changed files with 180 additions and 163 deletions
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16
cpu/sh2/sh2.h
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@ -52,10 +52,20 @@ typedef struct SH2_
int REGPARM(2) (*irq_callback)(struct SH2_ *sh2, int level);
int is_slave;
unsigned int cycles_aim; // subtract sh2_icount to get global counter
unsigned int cycles_done;
unsigned int cycles_timeslice;
// we use 68k reference cycles for easier sync
unsigned int m68krcycles_done;
unsigned int mult_m68k_to_sh2;
unsigned int mult_sh2_to_m68k;
} SH2;
#define CYCLE_MULT_SHIFT 10
#define C_M68K_TO_SH2(xsh2, c) \
((int)((c) * (xsh2).mult_m68k_to_sh2) >> CYCLE_MULT_SHIFT)
#define C_SH2_TO_M68K(xsh2, c) \
((int)((c + 3) * (xsh2).mult_sh2_to_m68k) >> CYCLE_MULT_SHIFT)
extern SH2 *sh2; // active sh2. XXX: consider removing
int sh2_init(SH2 *sh2, int is_slave);
@ -67,7 +77,7 @@ void sh2_do_irq(SH2 *sh2, int level, int vector);
void sh2_pack(const SH2 *sh2, unsigned char *buff);
void sh2_unpack(SH2 *sh2, const unsigned char *buff);
void sh2_execute(SH2 *sh2, int cycles);
int sh2_execute(SH2 *sh2, int cycles);
// regs, pending_int*, cycles, reserved
#define SH2_STATE_SIZE ((24 + 2 + 2 + 12) * 4)