140 lines
3.0 KiB
C++
140 lines
3.0 KiB
C++
/******************************************************************************/
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/* Nes Cart Dumper */
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/* tpu<tpunix@126.com> */
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/* last : 2006.11.14 */
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/* first: 2003.05.05 */
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/******************************************************************************/
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#include <windows.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <conio.h>
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#include "mmu.h"
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#include "nnd.h"
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#define inb(a) _inp((unsigned short)a)
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#define outb(a, d) _outp((unsigned short)a, (unsigned short)d)
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int InstallGiveIo(void)
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{
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HANDLE h;
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OSVERSIONINFO osvi;
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osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
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GetVersionEx(&osvi);
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if(osvi.dwPlatformId == VER_PLATFORM_WIN32_NT){ //OS=NT/2000
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h = CreateFile("\\\\.\\giveio", GENERIC_READ, 0, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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CloseHandle(h);
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if(h == INVALID_HANDLE_VALUE)
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return 0;
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else
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return 0x2000;
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}else{
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return 0x0098; //OS=WIN98
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}
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}
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void set_paddr(int addr)
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{
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outb(0x37b, 0);
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outb(0x37c, addr&0xff);
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outb(0x37b, 1);
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outb(0x37c, (addr>>8));
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}
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void set_vaddr(int addr)
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{
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int data;
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data = (~addr)&0x2000;
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data <<= 1;
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addr &= 0x3fff;
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addr |= data;
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outb(0x37b, 4);
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outb(0x37c, addr&0xff);
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outb(0x37b, 5);
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outb(0x37c, addr>>8);
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}
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void vwrite(int addr, int data)
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{
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set_vaddr(addr);
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outb(0x37b, 6);
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outb(0x37c, data);
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}
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int vread(int addr)
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{
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int data;
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set_vaddr(addr);
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outb(0x37b, 6);
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data = inb(0x37c);
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return data;
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}
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int ppread(int addr)
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{
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int data;
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if(addr<0x4000) return vread(addr);
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set_paddr(addr);
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outb(0x37b, 2);
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data = inb(0x37c);
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return data;
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}
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void ppwrite(int addr, int data)
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{
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if(addr<0x4000){
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vwrite(addr, data);
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return;
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}
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set_paddr(addr);
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outb(0x37b, 2);
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outb(0x37c, data);
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}
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void bus_reset(void)
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{
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int data;
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//Reset
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data = inb(0x37a);
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data &= 0xfb;
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outb(0x37a, data);
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data = 0xc4;
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outb(0x37a, data);
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outb(0x37b, 8);
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outb(0x37c, 0); //auto sync on
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// outb(0x37c, 1); //auto sync off
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set_vaddr(0x3fff);
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}
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void main(void)
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{
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BYTE filebuf_Prom[64*1024];
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BYTE filebuf_Vrom[16*1024];
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int retv, i;
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retv = InstallGiveIo();
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if(retv==0){
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printf("Please install gaveio.sys first!\n");
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}
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bus_reset();
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for(i=0x8000; i<0x10000; i++) filebuf_Prom[i-0x8000] = ppread(i);
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CPU_MEM_BANK[4] = filebuf_Prom;
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CPU_MEM_BANK[5] = filebuf_Prom + 0x2000;
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CPU_MEM_BANK[6] = filebuf_Prom + 0x4000;
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CPU_MEM_BANK[7] = filebuf_Prom + 0x6000;
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for(i=0x0000; i<0x2000; i++) filebuf_Vrom[i] = ppread(i);
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PPU_MEM_BANK[0] = filebuf_Vrom;
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PPU_MEM_BANK[1] = filebuf_Vrom + 0x0400;
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PPU_MEM_BANK[2] = filebuf_Vrom + 0x0800;
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PPU_MEM_BANK[3] = filebuf_Vrom + 0x0c00;
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PPU_MEM_BANK[4] = filebuf_Vrom + 0x1000;
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PPU_MEM_BANK[5] = filebuf_Vrom + 0x1400;
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PPU_MEM_BANK[6] = filebuf_Vrom + 0x1800;
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PPU_MEM_BANK[7] = filebuf_Vrom + 0x1c00;
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}
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