123 lines
3.3 KiB
C
123 lines
3.3 KiB
C
#ifndef __NES_MAPPER_H
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#define __NES_MAPPER_H
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//////////////////////////////////////////////////////////////////////////////////
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//本程序移植自网友ye781205的NES模拟器工程
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//ALIENTEK STM32F407开发板
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//NES MAP 驱动代码
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//正点原子@ALIENTEK
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//技术论坛:www.openedv.com
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//创建日期:2014/7/1
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//版本：V1.0
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//////////////////////////////////////////////////////////////////////////////////
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#ifndef uint16
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#define uint16 u16
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#define uint8 u8
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#define uint32 u32
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#endif
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#define num_8k_ROM_banks VROM_8K_SIZE
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#define num_1k_VROM_banks VROM_1K_SIZE
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//////////////////////////////////////////////////////////////////////////////////
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typedef struct
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{
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void (*Reset)();
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void (*Write)( uint16 addr,uint8 data);
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void (*Read)( uint8 data,uint16 addr);
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uint8 (*ReadLow)( uint16 addr);
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void (*WriteLow)(uint16 addr,uint8 data);
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void (*HSync)( int scanline);
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void (*VSync)(void);
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} MAPPER;
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///////////////////////////////////////////////////////////////
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typedef enum
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{
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MMC1_SMALL,
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MMC1_512K,
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MMC1_1024K
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}MMC1_Size_t;
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typedef struct
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{
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uint32 write_count;
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uint8 bits;
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uint8 regs[4];
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uint32 last_write_addr;
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MMC1_Size_t MMC1_Size;
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uint32 MMC1_256K_base;
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uint32 MMC1_swap;
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// these are the 4 ROM banks currently selected
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uint32 MMC1_bank1;
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uint32 MMC1_bank2;
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uint32 MMC1_bank3;
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uint32 MMC1_bank4;
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uint32 MMC1_HI1;
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uint32 MMC1_HI2;
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}Mapper1Res;
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//通用map变量结构体
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typedef struct
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{
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uint8 patch;
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uint8 regs[11];
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uint32 prg0,prg1;
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uint32 chr01,chr23,chr4,chr5,chr6,chr7;
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uint8 irq_enabled; // IRQs enabled
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uint32 irq_counter; // IRQ scanline counter, decreasing
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uint32 irq_latch; // IRQ scanline counter latch
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}MapperCommRes;
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extern uint32 ROM_mask;
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extern uint32 VROM_mask;
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extern const int MapTab[];
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extern MAPPER *NES_Mapper;
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extern uint32 VROM_mask;
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extern Mapper1Res *MAP1;
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extern MapperCommRes *MAPx;
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//////////////////////////////////////////////////////////////////////////////////
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void Mapper_Init(void);
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void asm_Mapper_Write(uint8 byData,uint16 wAddr);
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void asm_Mapper_ReadLow( uint16 wAddr);
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void asm_Mapper_WriteLow( uint8 byData ,uint16 wAddr);
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void map67_(signed char page); //6502.s
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void map89_(signed char page);
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void mapAB_(signed char page);
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void mapCD_(signed char page);
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void mapEF_(signed char page);//有符号字符
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void set_CPU_bank3(signed char page );
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void set_CPU_bank4(signed char page );
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void set_CPU_bank5(signed char page );
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void set_CPU_bank6(signed char page );
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void set_CPU_bank7(signed char page );
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void set_CPU_banks(int bank0_num,int bank1_num,int bank2_num, int bank3_num);
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void set_PPU_banks( uint32 bank0_num, uint32 bank1_num,
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uint32 bank2_num, uint32 bank3_num,
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uint32 bank4_num, uint32 bank5_num,
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uint32 bank6_num, uint32 bank7_num);
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void set_PPU_bank0(uint32 bank_num);
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void set_PPU_bank1(uint32 bank_num);
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void set_PPU_bank2(uint32 bank_num);
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void set_PPU_bank3(uint32 bank_num);
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void set_PPU_bank4(uint32 bank_num);
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void set_PPU_bank5(uint32 bank_num);
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void set_PPU_bank6(uint32 bank_num);
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void set_PPU_bank7(uint32 bank_num);
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void set_PPU_bank8(uint32 bank_num);
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void set_PPU_bank9(uint32 bank_num);
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void set_PPU_bank10(uint32 bank_num);
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void set_PPU_bank11(uint32 bank_num);
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void set_VRAM_bank(uint8 bank, uint32 bank_num);
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#endif
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