Applerm-II/test.c

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998 B
C
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#include <stdio.h>
#include <stdint.h>
#include <string.h>
uint8_t mem[0x10000];
void prn(int c) {
printf("### $%02x ###\n", c);
}
void cpu6502_dump(
uint16_t pc, uint8_t a, uint8_t x, uint8_t y, uint8_t sp, uint8_t sr) {
printf("*** dump *** PC=$%04x A=$%02x X=$%02x Y=$%02x SP=$%02x "
"NV-B_DIZC=%d%d-%d_%d%d%d%d\n",
pc, a, x, y, sp, (sr >> 7) & 1, (sr >> 6) & 1, (sr >> 4) & 1,
(sr >> 3) & 1, (sr >> 2) & 1, (sr >> 1) & 1, sr & 1);
fflush(stdout);
}
uint8_t cpu6502_load(uint16_t addr) {
printf("load $%04x => $%02x\n", addr, mem[addr]);
fflush(stdout);
return mem[addr];
}
void cpu6502_store(uint16_t addr, uint8_t data) {
printf("store $%04x <= $%02x\n", addr, data);
fflush(stdout);
mem[addr] = data;
}
int main(int argc, char** argv) {
FILE* fp = fopen("applebasic.rom", "rb");
memset(mem, 0, 0x10000);
fread(&mem[0xd000], 1, 0x3000, fp);
fclose(fp);
cpu6502_reset();
printf("quit: $%04x\n", cpu6502_run());
return 0;
}