Error in C++ / NES emulator programm - Programmers Heaven

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Error in C++ / NES emulator programm

ehguachoehguacho Posts: 2Member
hi! i'm trying to programm a Nintendo NES emulator. i've coded some opcodes (NES uses a 6502 processor) and them worked perfectly. but now i'm trying to allocate a piece of memory and i get this error.


after the error, a blue line appears on the line "switch(memory[pc])" and i can't figure out why does it happen, i can't find the error. is it inside of the "switch" instruccion or is it in the "pc" (program counter) variable!? what i'm trying to do is to copy a piece of memory from the NES game rom file to the memory (a piece of memory wich should start at 0x8000). please somebody help me! :(

this is the full source code of my programm.
you can download it from here: [link=][/link]


#define ADDR ((memory[pc + 2] << 8) | memory[pc + 1])
#define PUSH(a) memory[SP + 0x100] = (a); SP--
#define PULL() memory[(++SP) + 0x100]

void main(void)
FILE *fp;
unsigned char *memory; // Vector de memoria ROM (PRG Rom)
int i = 0;
unsigned int pc; // Contador de programa
int AR = 0; // Registro A
int XR = 0; // Registro X
int YR = 0; // Registro Y
int C_FLAG = 0; // Carry flag
int S_FLAG = 0; // Sign flag
int Z_FLAG = 0; // Zero flag
int SP = 0xFF; // Puntero a pila
int mirroring; // 0 = Horizontal 1 = Vertical
int trainer, battery;


// Carga del archivo

fp = fopen("jumpy.nes","rb");
printf("No se encontro el archivo
else printf("Archivo encontrado

// Cantidad de bancos de ROM y VROM y tama


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