Apple-1-Tools
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Ryukojiro-apple1
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Added PIA and reset vector initialization to driver 

git-svn-id: svn+ssh://svn.phoenixbox.net/svn/apple1/trunk@6 64f78de7-aa59-e511-a0e8-0002a5492df0
This commit is contained in:
Daniel Loffgren 2015-09-14 00:28:23 +00:00
parent 19733ba72b
commit 19b706fb6c
1 changed files with 12 additions and 3 deletions
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15
apple1/main.c
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@ -9,6 +9,8 @@
#include <v6502/cpu.h>
#include <v6502/mem.h>
#include <stdio.h>
#include "pia.h"
#include <unistd.h>
#define ROM_START 0xF000
#define ROM_SIZE 0x00FF
@ -32,7 +34,7 @@ static void loadRomFile(v6502_memory *mem, const char *fname, uint16_t address)
mem->bytes[address + (offset++)] = byte;
}
printf("Loaded %u bytes at 0x%x.\n", offset, address);
fprintf(stderr, "Loaded %u bytes at 0x%x.\n", offset, address);
fclose(f);
}
@ -47,7 +49,7 @@ int main(int argc, const char * argv[])
int faulted = 0;
v6502_cpu *cpu = v6502_createCPU();
cpu->memory = v6502_createMemory(0xFFFF);
cpu->memory = v6502_createMemory(v6502_memoryStartCeiling + 1);
cpu->fault_callback = fault;
cpu->fault_context = &faulted;
@ -59,13 +61,20 @@ int main(int argc, const char * argv[])
v6502_map(cpu->memory, start, ROM_SIZE, romMirrorCallback, NULL, NULL);
}
// Set the reset vector
v6502_write(cpu->memory, v6502_memoryVectorResetLow, ROM_START & 0xFF);
v6502_write(cpu->memory, v6502_memoryVectorResetHigh, ROM_START >> 8);
// Attach PIA
pia_map(cpu->memory);
v6502_reset(cpu);
while (!faulted) {
v6502_step(cpu);
usleep(1); // 1MHz
}
v6502_destroyMemory(cpu->memory);
v6502_destroyCPU(cpu);
}