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zasm: add memdump mode

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This commit is contained in:
Virgil Dupras 2019-05-12 08:49:59 -04:00
parent 89848dbfe2
commit 6aa53afabc
1 changed files with 11 additions and 0 deletions
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11
tools/emul/zasm.c
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@ -31,6 +31,9 @@
// Other consts // Other consts
#define STDIN_BUFSIZE 0x8000 #define STDIN_BUFSIZE 0x8000
// When defined, we dump memory instead of dumping expected stdout
//#define MEMDUMP
static Z80Context cpu; static Z80Context cpu;
static uint8_t mem[0x10000]; static uint8_t mem[0x10000];
// STDIN buffer, allows us to seek and tell // STDIN buffer, allows us to seek and tell
@ -57,7 +60,10 @@ static void io_write(int unused, uint16_t addr, uint8_t val)
{ {
addr &= 0xff; addr &= 0xff;
if (addr == STDIO_PORT) { if (addr == STDIO_PORT) {
// When mem-dumping, we don't output regular stuff.
#ifndef MEMDUMP
putchar(val); putchar(val);
#endif
} else if (addr == STDIN_REWIND) { } else if (addr == STDIN_REWIND) {
inpt_ptr = 0; inpt_ptr = 0;
} else { } else {
@ -107,6 +113,11 @@ int main()
while (!cpu.halted) { while (!cpu.halted) {
Z80Execute(&cpu); Z80Execute(&cpu);
} }
#ifdef MEMDUMP
for (int i=0; i<0x10000; i++) {
putchar(mem[i]);
}
#endif
fflush(stdout); fflush(stdout);
return 0; return 0;
} }