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Altered device memory mapping.

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This commit is contained in:
TomW 2013-10-19 17:06:55 +01:00
commit 7735e82085
43 changed files with 662 additions and 381 deletions
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61
src/mem.h
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@ -1,3 +1,22 @@
typedef struct mem_mapping_t
{
struct mem_mapping_t *prev, *next;
int enable;
uint32_t base;
uint32_t size;
uint8_t (*read_b)(uint32_t addr, void *priv);
uint16_t (*read_w)(uint32_t addr, void *priv);
uint32_t (*read_l)(uint32_t addr, void *priv);
void (*write_b)(uint32_t addr, uint8_t val, void *priv);
void (*write_w)(uint32_t addr, uint16_t val, void *priv);
void (*write_l)(uint32_t addr, uint32_t val, void *priv);
void *p;
} mem_mapping_t;
extern uint8_t *ram,*rom,*vram,*vrom;
extern uint8_t romext[32768];
extern int readlnum,writelnum;
@ -6,27 +25,37 @@ extern int nopageerrors;
extern int cache;
extern int memwaitstate;
void mem_sethandler(uint32_t base, uint32_t size,
uint8_t (*read_b)(uint32_t addr, void *priv),
uint16_t (*read_w)(uint32_t addr, void *priv),
uint32_t (*read_l)(uint32_t addr, void *priv),
void (*write_b)(uint32_t addr, uint8_t val, void *priv),
void (*write_w)(uint32_t addr, uint16_t val, void *priv),
void (*write_l)(uint32_t addr, uint32_t val, void *priv),
void *priv);
void mem_mapping_add(mem_mapping_t *mapping,
uint32_t base,
uint32_t size,
uint8_t (*read_b)(uint32_t addr, void *p),
uint16_t (*read_w)(uint32_t addr, void *p),
uint32_t (*read_l)(uint32_t addr, void *p),
void (*write_b)(uint32_t addr, uint8_t val, void *p),
void (*write_w)(uint32_t addr, uint16_t val, void *p),
void (*write_l)(uint32_t addr, uint32_t val, void *p),
void *p);
void mem_mapping_set_handler(mem_mapping_t *mapping,
uint8_t (*read_b)(uint32_t addr, void *p),
uint16_t (*read_w)(uint32_t addr, void *p),
uint32_t (*read_l)(uint32_t addr, void *p),
void (*write_b)(uint32_t addr, uint8_t val, void *p),
void (*write_w)(uint32_t addr, uint16_t val, void *p),
void (*write_l)(uint32_t addr, uint32_t val, void *p));
void mem_mapping_set_p(mem_mapping_t *mapping, void *p);
void mem_mapping_set_addr(mem_mapping_t *mapping, uint32_t base, uint32_t size);
void mem_mapping_disable(mem_mapping_t *mapping);
void mem_mapping_enable(mem_mapping_t *mapping);
void mem_bios_set_state(uint32_t base, uint32_t size, int read_ram, int write_ram);
void mem_removehandler(uint32_t base, uint32_t size,
uint8_t (*read_b)(uint32_t addr, void *priv),
uint16_t (*read_w)(uint32_t addr, void *priv),
uint32_t (*read_l)(uint32_t addr, void *priv),
void (*write_b)(uint32_t addr, uint8_t val, void *priv),
void (*write_w)(uint32_t addr, uint16_t val, void *priv),
void (*write_l)(uint32_t addr, uint32_t val, void *priv),
void *priv);
extern int mem_a20_alt;
extern int mem_a20_key;
void mem_a20_recalc();
uint8_t mem_readb_phys(uint32_t addr);
void mem_writeb_phys(uint32_t addr, uint8_t val);
uint8_t mem_read_ram(uint32_t addr, void *priv);
uint16_t mem_read_ramw(uint32_t addr, void *priv);
uint32_t mem_read_raml(uint32_t addr, void *priv);