6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2024-06-25 18:30:07 +00:00
Code Issues Projects Releases Wiki Activity

Gets a bit more rigorous in remaining missing parts.

Browse Source
This commit is contained in:
Thomas Harte 2020-11-26 22:36:32 -05:00
parent 950f5b1691
commit af667c718e
2 changed files with 52 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
Machines/Apple/AppleIIgs/AppleIIgs.cpp
View File

@ -468,7 +468,40 @@ class ConcreteMachine:
video_->set_composite_is_colour(!(*value & 0x80));
break;
// Language select. (?)
// case Read(0xc02e):
// // TODO: read vertical video counter.
// break;
// case Read(0xc02f):
// // TODO: read horizontal video counter.
// break;
// case Read(0xc037): case Write(0xc037):
// // TODO: "Used during DMA as bank address"?
// break;
// case Read(0xc041): case Write(0xc041):
// // TODO: 'INTEN'; seems possibly to provide the same interrupt behaviour as a IIc?
// break;
// case Read(0xc044): case Write(0xc044):
// // TODO: MMDELTAX byte?
// break;
// case Read(0xc045): case Write(0xc045):
// // TODO: MMDELTAX byte?
// break;
// case Read(0xc046): case Write(0xc046):
// // TODO: DIAGTYPE byte? And INTFLAG?
// break;
// case Read(0xc047): case Write(0xc047):
// // TODO: Clear the VBL/3.75Hz interrupt flags (?)
// break;
// case Read(0xc048): case Write(0xc048):
// // TODO: Clear Mega II mouse interrupt flags
// break;
// Language select.
// b7, b6, b5: character generator language select;
// b4: NTSC/PAL (0 = NTC);
// b3: language select — primary or secondary.
case Read(0xc02b):
*value = language_;
break;
@ -476,6 +509,8 @@ class ConcreteMachine:
language_ = *value;
break;
// TODO: 0xc02c is "Addr for tst mode read of character ROM". So it reads... what?
// Slot select.
case Read(0xc02d):
// b7: 0 = internal ROM code for slot 7;
@ -497,14 +532,6 @@ class ConcreteMachine:
audio_toggle_.set_output(!audio_toggle_.get_output());
} break;
// Addresses that seemingly map to nothing; provided as a separate break out for now,
// while I have an assert on unknown accesses.
case 0xc049: case 0xc04a: case 0xc04b: case 0xc04c: case 0xc04d: case 0xc04e: case 0xc04f:
case 0xc069: case 0xc06a: case 0xc06b: case 0xc06c:
printf("Ignoring %04x\n", address_suffix);
// log = true;
break;
// 'Test Mode', whatever that is (?)
case Read(0xc06e): case Read(0xc06f):
case Write(0xc06e): case Write(0xc06f):
@ -535,6 +562,21 @@ class ConcreteMachine:
break;
// Addresses on other Apple II devices which do nothing on the GS.
case Read(0xc020): case Write(0xc020): // Reserved for future system expansion.
case Read(0xc028): case Write(0xc028): // ROMBANK; "not used in Apple IIGS".
case Read(0xc02a): case Write(0xc02a): // Reserved for future system expansion.
case Read(0xc040): case Write(0xc040): // Reserved for future system expansion.
case Read(0xc042): case Write(0xc042): // Reserved for future system expansion.
case Read(0xc043): case Write(0xc043): // Reserved for future system expansion.
case Read(0xc049): case Write(0xc049): // Reserved for future system expansion.
case Read(0xc04a): case Write(0xc04a): // Reserved for future system expansion.
case Read(0xc04b): case Write(0xc04b): // Reserved for future system expansion.
case Read(0xc04c): case Write(0xc04c): // Reserved for future system expansion.
case Read(0xc04d): case Write(0xc04d): // Reserved for future system expansion.
case Read(0xc04e): case Write(0xc04e): // Reserved for future system expansion.
case Read(0xc04f): case Write(0xc04f): // Reserved for future system expansion.
case Read(0xc06b): case Write(0xc06b): // Reserved for future system expansion.
case Read(0xc06c): case Write(0xc06c): // Reserved for future system expansion.
case Write(0xc07e):
break;

1
Machines/Apple/AppleIIgs/Video.cpp
View File

@ -462,6 +462,7 @@ void Video::set_text_colour(uint8_t colour) {
}
void Video::set_composite_is_colour(bool) {
// TODO.
}
bool Video::get_composite_is_colour() {