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only display SERDAT lsb

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nine
2021-02-21 01:27:14 +00:00
committed by just nine
parent f43d368ff2
commit fab2ab6419
1 changed files with 4 additions and 2 deletions
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6
emulator.c
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@@ -691,8 +691,10 @@ void m68k_write_memory_16(unsigned int address, unsigned int value) {
}*/
if (address == 0xDFF030) {
char *beb = (char *)&value;
printf("%c%c", beb[1], beb[0]);
char *serdat = (char *)&value;
// SERDAT word. see amiga dev docs appendix a; upper byte is control codes, and bit 0 is always 1.
// ignore this upper byte as it's not viewable data, only display lower byte.
printf("%c", serdat[0]);
}
if (address == 0xDFF09A) {
if (!(value & 0x8000)) {