Initial submission of the PCem-Experimental source code.
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OBattler
170
src/mem.h
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170
src/mem.h
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#ifndef _MEM_H_
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#define _MEM_H_
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typedef struct mem_mapping_t
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{
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struct mem_mapping_t *prev, *next;
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int enable;
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uint32_t base;
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uint32_t size;
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uint8_t (*read_b)(uint32_t addr, void *priv);
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uint16_t (*read_w)(uint32_t addr, void *priv);
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uint32_t (*read_l)(uint32_t addr, void *priv);
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void (*write_b)(uint32_t addr, uint8_t val, void *priv);
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void (*write_w)(uint32_t addr, uint16_t val, void *priv);
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void (*write_l)(uint32_t addr, uint32_t val, void *priv);
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uint8_t *exec;
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uint32_t flags;
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void *p;
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} mem_mapping_t;
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/*Only present on external bus (ISA/PCI)*/
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#define MEM_MAPPING_EXTERNAL 1
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/*Only present on internal bus (RAM)*/
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#define MEM_MAPPING_INTERNAL 2
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extern uint8_t *ram,*rom;
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extern uint8_t romext[32768];
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extern int readlnum,writelnum;
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extern int memspeed[11];
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extern int nopageerrors;
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extern int cache;
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extern int memwaitstate;
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void mem_mapping_add(mem_mapping_t *mapping,
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uint32_t base,
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uint32_t size,
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uint8_t (*read_b)(uint32_t addr, void *p),
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uint16_t (*read_w)(uint32_t addr, void *p),
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uint32_t (*read_l)(uint32_t addr, void *p),
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void (*write_b)(uint32_t addr, uint8_t val, void *p),
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void (*write_w)(uint32_t addr, uint16_t val, void *p),
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void (*write_l)(uint32_t addr, uint32_t val, void *p),
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uint8_t *exec,
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uint32_t flags,
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void *p);
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void mem_mapping_set_handler(mem_mapping_t *mapping,
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uint8_t (*read_b)(uint32_t addr, void *p),
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uint16_t (*read_w)(uint32_t addr, void *p),
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uint32_t (*read_l)(uint32_t addr, void *p),
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void (*write_b)(uint32_t addr, uint8_t val, void *p),
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void (*write_w)(uint32_t addr, uint16_t val, void *p),
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void (*write_l)(uint32_t addr, uint32_t val, void *p));
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void mem_mapping_set_p(mem_mapping_t *mapping, void *p);
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void mem_mapping_set_addr(mem_mapping_t *mapping, uint32_t base, uint32_t size);
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void mem_mapping_set_exec(mem_mapping_t *mapping, uint8_t *exec);
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void mem_mapping_disable(mem_mapping_t *mapping);
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void mem_mapping_enable(mem_mapping_t *mapping);
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void mem_set_mem_state(uint32_t base, uint32_t size, int state);
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#define MEM_READ_ANY 0x00
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#define MEM_READ_INTERNAL 0x10
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#define MEM_READ_EXTERNAL 0x20
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#define MEM_READ_MASK 0xf0
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#define MEM_WRITE_ANY 0x00
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#define MEM_WRITE_INTERNAL 0x01
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#define MEM_WRITE_EXTERNAL 0x02
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#define MEM_WRITE_DISABLED 0x03
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#define MEM_WRITE_MASK 0x0f
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extern int mem_a20_alt;
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extern int mem_a20_key;
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void mem_a20_recalc();
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uint8_t mem_readb_phys(uint32_t addr);
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void mem_writeb_phys(uint32_t addr, uint8_t val);
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uint8_t mem_read_ram(uint32_t addr, void *priv);
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uint16_t mem_read_ramw(uint32_t addr, void *priv);
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uint32_t mem_read_raml(uint32_t addr, void *priv);
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void mem_write_ram(uint32_t addr, uint8_t val, void *priv);
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void mem_write_ramw(uint32_t addr, uint16_t val, void *priv);
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void mem_write_raml(uint32_t addr, uint32_t val, void *priv);
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uint8_t mem_read_bios(uint32_t addr, void *priv);
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uint16_t mem_read_biosw(uint32_t addr, void *priv);
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uint32_t mem_read_biosl(uint32_t addr, void *priv);
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void mem_write_null(uint32_t addr, uint8_t val, void *p);
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void mem_write_nullw(uint32_t addr, uint16_t val, void *p);
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void mem_write_nulll(uint32_t addr, uint32_t val, void *p);
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FILE *romfopen(char *fn, char *mode);
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mem_mapping_t bios_mapping[8];
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mem_mapping_t bios_high_mapping[8];
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typedef struct page_t
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{
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void (*write_b)(uint32_t addr, uint8_t val, struct page_t *p);
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void (*write_w)(uint32_t addr, uint16_t val, struct page_t *p);
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void (*write_l)(uint32_t addr, uint32_t val, struct page_t *p);
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uint8_t *mem;
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struct codeblock_t *block, *block_2;
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/*Head of codeblock tree associated with this page*/
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struct codeblock_t *head;
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uint64_t code_present_mask, dirty_mask;
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} page_t;
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extern page_t *pages;
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extern page_t **page_lookup;
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uint32_t mmutranslate_noabrt(uint32_t addr, int rw);
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extern uint32_t get_phys_virt,get_phys_phys;
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static inline uint32_t get_phys(uint32_t addr)
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{
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if (!((addr ^ get_phys_virt) & ~0xfff))
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return get_phys_phys | (addr & 0xfff);
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get_phys_virt = addr;
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if (!(cr0 >> 31))
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{
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get_phys_phys = (addr & rammask) & ~0xfff;
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return addr & rammask;
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}
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get_phys_phys = (mmutranslatereal(addr, 0) & rammask) & ~0xfff;
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return get_phys_phys | (addr & 0xfff);
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// return mmutranslatereal(addr, 0) & rammask;
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}
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static inline uint32_t get_phys_noabrt(uint32_t addr)
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{
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if (!(cr0 >> 31))
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return addr & rammask;
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return mmutranslate_noabrt(addr, 0) & rammask;
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}
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void mem_invalidate_range(uint32_t start_addr, uint32_t end_addr);
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extern uint32_t mem_logical_addr;
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void mem_write_ramb_page(uint32_t addr, uint8_t val, page_t *p);
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void mem_write_ramw_page(uint32_t addr, uint16_t val, page_t *p);
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void mem_write_raml_page(uint32_t addr, uint32_t val, page_t *p);
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void mem_reset_page_blocks();
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extern mem_mapping_t ram_low_mapping;
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void mem_remap_top_384k();
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#endif
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