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Add dosbox.conf option to control the base I/O port of the PC-98 FM board (within limits allowed by the code)

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This commit is contained in:
Jonathan Campbell 2018-02-17 23:45:48 -08:00
parent 6da38ea0cb
commit 9ecfb56992
2 changed files with 42 additions and 5 deletions
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3
src/dosbox.cpp
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@ -1156,6 +1156,9 @@ void DOSBOX_SetupConfigSections(void) {
Pstring->Set_values(pc98fmboards);
Pstring->Set_help("In PC-98 mode, selects the FM music board to emulate.");
Phex = secprop->Add_hex("pc-98 fm board io port", Property::Changeable::WhenIdle,0);
Phex->Set_help("If set, helps to determine the base I/O port of the FM board. A setting of zero means to auto-determine the port number.");
Pbool = secprop->Add_bool("pc-98 buffer page flip",Property::Changeable::WhenIdle,false);
Pbool->Set_help("If set, the game's request to page flip will be delayed to vertical retrace, which can eliminate tearline artifacts.\n"
"Note that this is NOT the behavior of actual hardware. This option is provided for the user's preference.");

44
src/hardware/pc98_fm.cpp
View File

@ -216,11 +216,14 @@ void PC98_FM_OnEnterPC98(Section *sec) {
Section_prop * section=static_cast<Section_prop *>(control->GetSection("dosbox"));
if (!pc98fm_init) {
unsigned int baseio;
std::string board;
board = section->Get_string("pc-98 fm board");
if (board == "off" || board == "false") return;
baseio = section->Get_hex("pc-98 fm board io port");
pc98fm_init = true;
unsigned int rate = 44100;
@ -235,7 +238,6 @@ void PC98_FM_OnEnterPC98(Section *sec) {
pccore.vol_adpcm = 128;
pccore.vol_pcm = 128;
pccore.vol_rhythm = 128;
pccore.snd86opt = 0x01;
// fddmtrsnd_initialize(rate);
// beep_initialize(rate);
@ -254,19 +256,51 @@ void PC98_FM_OnEnterPC98(Section *sec) {
pcm86gen_setvol(pccore.vol_pcm);
if (board == "board86c" || board == "auto") {
LOG_MSG("PC-98 FM board is PC-9801-86c");
if (baseio == 0 || baseio == 0x188) { /* default */
pccore.snd86opt |= 0x01;
baseio = 0x188;
}
else {
baseio = 0x288;
}
LOG_MSG("PC-98 FM board is PC-9801-86c at baseio=0x%x",baseio);
fmboard_reset(&np2cfg, 0x14);
}
else if (board == "board86") {
LOG_MSG("PC-98 FM board is PC-9801-86");
if (baseio == 0 || baseio == 0x188) { /* default */
pccore.snd86opt |= 0x01;
baseio = 0x188;
}
else {
baseio = 0x288;
}
LOG_MSG("PC-98 FM board is PC-9801-86 at baseio=0x%x",baseio);
fmboard_reset(&np2cfg, 0x04);
}
else if (board == "board26k") {
LOG_MSG("PC-98 FM board is PC-9801-26k");
if (baseio == 0x188) {
pccore.snd26opt |= 0x10;
baseio = 0x188;
}
else { /* default */
baseio = 0x088;
}
LOG_MSG("PC-98 FM board is PC-9801-26k at baseio=0x%x",baseio);
fmboard_reset(&np2cfg, 0x02);
}
else {
LOG_MSG("PC-98 FM board is PC-9801-86c");
if (baseio == 0 || baseio == 0x188) { /* default */
pccore.snd86opt |= 0x01;
baseio = 0x188;
}
else {
baseio = 0x288;
}
LOG_MSG("PC-98 FM board is PC-9801-86c at baseio=0x%x",baseio);
fmboard_reset(&np2cfg, 0x14); // board86c, a good default
}