mirror of
https://github.com/bsnes-emu/bsnes.git
synced 2025-02-23 22:52:34 +01:00
fa6cbac251
byuu says:
Changelog:
- added higan/emulator/platform.hpp (moved out Emulator::Platform from
emulator/interface.hpp)
- moved gmake build paramter to nall/GNUmakefile; both higan and
icarus use it now
- added build=profile mode
- MD: added the region select I/O register
- MD: started to add region selection support internally (still no
external select or PAL support)
- PCE: added cycle stealing when reading/writing to the VDC or VCE;
and when using ST# instructions
- PCE: cleaned up PSG to match the behavior of Mednafen (doesn't
improve sound at all ;_;)
- note: need to remove loadWaveSample, loadWavePeriod
- HuC6280: ADC/SBC decimal mode consumes an extra cycle; does not set
V flag
- HuC6280: block transfer instructions were taking one cycle too many
- icarus: added code to strip out PC Engine ROM headers
- hiro: added options support to BrowserDialog
The last one sure ended in failure. The plan was to put a region
dropdown directly onto hiro::BrowserDialog, and I had all the code for
it working. But I forgot one important detail: the system loads
cartridges AFTER powering on, so even though I could technically change
the system region post-boot, I'd rather not do so.
So that means we have to know what region we want before we even select
a game. Shit.
48 lines
827 B
C++
48 lines
827 B
C++
auto HuC6280::load8(uint8 addr) -> uint8 {
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step(r.cs);
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return read(r.mpr[1], addr);
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}
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auto HuC6280::load16(uint16 addr) -> uint8 {
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step(r.cs);
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return read(r.mpr[addr.bits(13,15)], addr.bits(0,12));
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}
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auto HuC6280::store8(uint8 addr, uint8 data) -> void {
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step(r.cs);
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return write(r.mpr[1], addr, data);
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}
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auto HuC6280::store16(uint16 addr, uint8 data) -> void {
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step(r.cs);
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return write(r.mpr[addr.bits(13,15)], addr.bits(0,12), data);
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}
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//
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auto HuC6280::io() -> void {
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step(r.cs);
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}
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auto HuC6280::opcode() -> uint8 {
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return load16(PC++);
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}
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auto HuC6280::operand() -> uint8 {
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return load16(PC++);
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}
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//
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auto HuC6280::push(uint8 data) -> void {
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step(r.cs);
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write(r.mpr[1], 0x0100 | S, data);
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S--;
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}
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auto HuC6280::pull() -> uint8 {
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step(r.cs);
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S++;
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return read(r.mpr[1], 0x0100 | S);
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}
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