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more wip SVP code

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@318 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-12-22 20:53:09 +00:00
parent f53f286a8b
commit f8ef8ff710
13 changed files with 399 additions and 24 deletions
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46
Pico/carthw/svp/ssp16.h Normal file
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// register names
enum {
SSP_GR0, SSP_X, SSP_Y, SSP_A,
SSP_ST, SSP_STACK, SSP_PC, SSP_P,
SSP_PM0, SSP_PM1, SSP_PM2, SSP_XST,
SSP_PM4, SSP_gr13, SSP_PMC, SSP_AL
};
typedef union
{
unsigned int v;
struct {
unsigned short l;
unsigned short h;
};
} ssp_reg_t;
typedef struct
{
union {
unsigned short RAM[256*2]; // 2 internal RAM banks
struct {
unsigned short RAM0[256];
unsigned short RAM1[256];
};
};
ssp_reg_t gr[16]; // general registers
union {
unsigned char r[8]; // BANK pointers
struct {
unsigned char r0[4];
unsigned char r1[4];
};
};
unsigned short stack[6];
//
#define SSP_PMC_HAVE_ADDR 1 // address written to PMAC, waiting for mode
unsigned int emu_status;
unsigned int pad[10];
} ssp1601_t;
void ssp1601_reset(ssp1601_t *ssp);
void ssp1601_run(ssp1601_t *ssp, int cycles);