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Pointer-ified the sh4 core.

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This commit is contained in:
Aaron Giles 2008-12-10 16:40:57 +00:00
parent b5705a5322
commit 9824c667e4
4 changed files with 2064 additions and 2070 deletions
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3130
src/emu/cpu/sh4/sh4.c
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2
src/emu/cpu/sh4/sh4.h
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@ -1,6 +1,6 @@
/*****************************************************************************
*
* sh4.h
* sh4->h
* Portable Hitachi SH-4 (SH7750 family) emulator interface
*
* By R. Belmont, based on sh2.c by Juergen Buchmueller, Mariusz Wojcieszek,

942
src/emu/cpu/sh4/sh4comn.c
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60
src/emu/cpu/sh4/sh4comn.h
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@ -24,17 +24,17 @@
#define NMIPRI() EXPPRI(3,0,16,SH4_INTC_NMI)
#define INTPRI(p,n) EXPPRI(4,2,p,n)
#define FP_RS(r) sh4.fr[(r)] // binary representation of single precision floating point register r
#define FP_RFS(r) *( (float *)(sh4.fr+(r)) ) // single precision floating point register r
#define FP_RFD(r) *( (double *)(sh4.fr+(r)) ) // double precision floating point register r
#define FP_XS(r) sh4.xf[(r)] // binary representation of extended single precision floating point register r
#define FP_XFS(r) *( (float *)(sh4.xf+(r)) ) // single precision extended floating point register r
#define FP_XFD(r) *( (double *)(sh4.xf+(r)) ) // double precision extended floating point register r
#define FP_RS(r) sh4->fr[(r)] // binary representation of single precision floating point register r
#define FP_RFS(r) *( (float *)(sh4->fr+(r)) ) // single precision floating point register r
#define FP_RFD(r) *( (double *)(sh4->fr+(r)) ) // double precision floating point register r
#define FP_XS(r) sh4->xf[(r)] // binary representation of extended single precision floating point register r
#define FP_XFS(r) *( (float *)(sh4->xf+(r)) ) // single precision extended floating point register r
#define FP_XFD(r) *( (double *)(sh4->xf+(r)) ) // double precision extended floating point register r
#ifdef LSB_FIRST
#define FP_RS2(r) sh4.fr[(r) ^ sh4.fpu_pr]
#define FP_RFS2(r) *( (float *)(sh4.fr+((r) ^ sh4.fpu_pr)) )
#define FP_XS2(r) sh4.xf[(r) ^ sh4.fpu_pr]
#define FP_XFS2(r) *( (float *)(sh4.xf+((r) ^ sh4.fpu_pr)) )
#define FP_RS2(r) sh4->fr[(r) ^ sh4->fpu_pr]
#define FP_RFS2(r) *( (float *)(sh4->fr+((r) ^ sh4->fpu_pr)) )
#define FP_XS2(r) sh4->xf[(r) ^ sh4->fpu_pr]
#define FP_XFS2(r) *( (float *)(sh4->xf+((r) ^ sh4->fpu_pr)) )
#endif
typedef struct
@ -81,7 +81,7 @@ typedef struct
int dma_timer_active[4];
int sh4_icount;
int is_slave, cpu_number;
int is_slave;
int cpu_clock, bus_clock, pm_clock;
int fpu_sz, fpu_pr;
int ioport16_pullup, ioport16_direction;
@ -90,8 +90,6 @@ typedef struct
void (*ftcsr_read_callback)(UINT32 data);
} SH4;
extern SH4 sh4;
enum
{
ICF = 0x00800000,
@ -126,26 +124,26 @@ enum
#define Rn ((opcode>>8)&15)
#define Rm ((opcode>>4)&15)
void sh4_exception_recompute(void); // checks if there is any interrupt with high enough priority
void sh4_exception_request(int exception); // start requesting an exception
void sh4_exception_unrequest(int exception); // stop requesting an exception
void sh4_exception_checkunrequest(int exception);
void sh4_exception(const char *message, int exception); // handle exception
void sh4_change_register_bank(int to);
void sh4_syncronize_register_bank(int to);
void sh4_swap_fp_registers(void);
void sh4_default_exception_priorities(void); // setup default priorities for exceptions
void sh4_parse_configuration(const struct sh4_config *conf);
void sh4_dma_ddt(struct sh4_ddt_dma *s);
void sh4_set_irq_line(int irqline, int state); // set state of external interrupt line
void sh4_exception_recompute(SH4 *sh4); // checks if there is any interrupt with high enough priority
void sh4_exception_request(SH4 *sh4, int exception); // start requesting an exception
void sh4_exception_unrequest(SH4 *sh4, int exception); // stop requesting an exception
void sh4_exception_checkunrequest(SH4 *sh4, int exception);
void sh4_exception(SH4 *sh4, const char *message, int exception); // handle exception
void sh4_change_register_bank(SH4 *sh4, int to);
void sh4_syncronize_register_bank(SH4 *sh4, int to);
void sh4_swap_fp_registers(SH4 *sh4);
void sh4_default_exception_priorities(SH4 *sh4); // setup default priorities for exceptions
void sh4_parse_configuration(SH4 *sh4, const struct sh4_config *conf);
void sh4_dma_ddt(SH4 *sh4, struct sh4_ddt_dma *s);
void sh4_set_irq_line(SH4 *sh4, int irqline, int state); // set state of external interrupt line
void sh4_set_frt_input(const device_config *device, int state);
void sh4_set_irln_input(const device_config *device, int value);
#ifdef LSB_FIRST
void sh4_swap_fp_couples(void);
void sh4_swap_fp_couples(SH4 *sh4);
#endif
void sh4_common_init(const device_config *device);
INLINE void sh4_check_pending_irq(const char *message) // look for highest priority active exception and handle it
INLINE void sh4_check_pending_irq(SH4 *sh4, const char *message) // look for highest priority active exception and handle it
{
int a,irq,z;
@ -153,18 +151,18 @@ INLINE void sh4_check_pending_irq(const char *message) // look for highest prior
z = -1;
for (a=0;a <= SH4_INTC_ROVI;a++)
{
if (sh4.exception_requesting[a])
if (sh4->exception_requesting[a])
{
if ((int)sh4.exception_priority[a] > z)
if ((int)sh4->exception_priority[a] > z)
{
z = sh4.exception_priority[a];
z = sh4->exception_priority[a];
irq = a;
}
}
}
if (z >= 0)
{
sh4_exception(message, irq);
sh4_exception(sh4, message, irq);
}
}