etc/furnace
0
0
Fork 0
mirror of https://github.com/tildearrow/furnace.git synced 2024-11-23 21:15:11 +00:00
Code Issues Projects Releases Packages Wiki Activity

SCC: SCC+ and dual-SCC VGM export

Browse source
This commit is contained in:
tildearrow 2022-05-11 02:32:08 -05:00
parent 35ff5430d3
commit 955cd48fcf
1 changed files with 45 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

55
src/engine/vgmOps.cpp
View file

@ -601,33 +601,68 @@ void DivEngine::performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write
case DIV_SYSTEM_SCC:
if (write.addr<0x80) {
w->writeC(0xd2);
w->writeC(0);
w->writeC(baseAddr2|(write.addr&0x7f));
w->writeC(baseAddr2|0);
w->writeC(write.addr&0x7f);
w->writeC(write.val&0xff);
} else if (write.addr<0x8a) {
w->writeC(0xd2);
w->writeC(1);
w->writeC(baseAddr2|((write.addr-0x80)&0x7f));
w->writeC(baseAddr2|1);
w->writeC((write.addr-0x80)&0x7f);
w->writeC(write.val&0xff);
} else if (write.addr<0x8f) {
w->writeC(0xd2);
w->writeC(2);
w->writeC(baseAddr2|((write.addr-0x8a)&0x7f));
w->writeC(baseAddr2|2);
w->writeC((write.addr-0x8a)&0x7f);
w->writeC(write.val&0xff);
} else if (write.addr<0x90) {
w->writeC(0xd2);
w->writeC(3);
w->writeC(baseAddr2|((write.addr-0x8f)&0x7f));
w->writeC(baseAddr2|3);
w->writeC((write.addr-0x8f)&0x7f);
w->writeC(write.val&0xff);
} else if (write.addr>=0xe0) {
w->writeC(0xd2);
w->writeC(5);
w->writeC(baseAddr2|((write.addr-0xe0)&0x7f));
w->writeC(baseAddr2|5);
w->writeC((write.addr-0xe0)&0x7f);
w->writeC(write.val&0xff);
} else {
logW("SCC: writing to unmapped address %.2x!",write.addr);
}
break;
case DIV_SYSTEM_SCC_PLUS:
if (write.addr<0x80) {
w->writeC(0xd2);
w->writeC(baseAddr2|0);
w->writeC(write.addr&0x7f);
w->writeC(write.val&0xff);
} else if (write.addr<0xa0) {
w->writeC(0xd2);
w->writeC(baseAddr2|4);
w->writeC(write.addr);
w->writeC(write.val&0xff);
} else if (write.addr<0xaa) {
w->writeC(0xd2);
w->writeC(baseAddr2|1);
w->writeC((write.addr-0xa0)&0x7f);
w->writeC(write.val&0xff);
} else if (write.addr<0xaf) {
w->writeC(0xd2);
w->writeC(baseAddr2|2);
w->writeC((write.addr-0xaa)&0x7f);
w->writeC(write.val&0xff);
} else if (write.addr<0xb0) {
w->writeC(0xd2);
w->writeC(baseAddr2|3);
w->writeC((write.addr-0xaf)&0x7f);
w->writeC(write.val&0xff);
} else if (write.addr>=0xe0) {
w->writeC(0xd2);
w->writeC(baseAddr2|5);
w->writeC((write.addr-0xe0)&0x7f);
w->writeC(write.val&0xff);
} else {
logW("SCC+: writing to unmapped address %.2x!",write.addr);
}
break;
default:
logW("write not handled!");
break;