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For now, at least, c800–cfff is always built-in ROM.

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Otherwise I probably need to extend my c3 logic to cover the other built-in cards (?)
This commit is contained in:
Thomas Harte 2020-11-18 19:49:45 -05:00
parent 96cf617ee6
commit 34794223b4
1 changed files with 16 additions and 0 deletions
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16
Machines/Apple/AppleIIgs/AppleIIgs.cpp
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@ -385,27 +385,35 @@ class ConcreteMachine:
// The audio GLU.
case Read(0xc03c):
update_audio();
*value = sound_glu_.get_control();
break;
case Write(0xc03c):
update_audio();
sound_glu_.set_control(*value);
break;
case Read(0xc03d):
update_audio();
*value = sound_glu_.get_data();
break;
case Write(0xc03d):
update_audio();
sound_glu_.set_data(*value);
break;
case Read(0xc03e):
update_audio();
*value = sound_glu_.get_address_low();
break;
case Write(0xc03e):
update_audio();
sound_glu_.set_address_low(*value);
break;
case Read(0xc03f):
update_audio();
*value = sound_glu_.get_address_high();
break;
case Write(0xc03f):
update_audio();
sound_glu_.set_address_high(*value);
break;
@ -588,6 +596,14 @@ class ConcreteMachine:
#undef Read
#undef Write
} else {
// Access the internal ROM.
//
// TODO: should probably occur only if there was a preceding access to a built-in
// card ROM?
if(is_read) {
*value = rom_[rom_.size() - 65536 + address_suffix];
}
if(address_suffix < 0xc080) {
// TODO: all other IO accesses.
printf("Unhandled IO %s: %04x\n", is_read ? "read" : "write", address_suffix);