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floooh
8-bit chip and system emulators in standalone C headers
In `cpc_key_down/up`, if there's a `CPC_JOYSTICK_DIGITAL`, the space key will be converted to the joystick button `CPC_JOYSTICK_BTN0`, making it impossible to produce a space in the emulator. I'd love to...
Based on a comment in z80.h it looks like there are plans to implement the RESET pin, but I am curious if there are plans to emulate the BUSACK and...
i'm using your m6502 to verify accurateness of the 6502 emu i'm writing and encountered this cornercase in blargg NES cpu testsuite: `PC:0200 S:90 A:ff X:02 Y:01 nvTBdizc O:9c @shy...
the macros used are exposed by default on gcc >= 4.8.x, and clang 3.1 and most other compilers. before: $ qemu-ppc z80test zexall.cim *** TEST: zexall.cim *** 25390418 instructions executed...
- the floppy disc emulation doesn't take timing of 'phyisical components' into account (e.g. all seek times are 'immediate'), this causes some demos to temporarily speed up during disc loading...
This PR implements some improvements on the MC6847 video chip: - The border color now changes only during the scanlines of the active area, before it was on every scanline...
in `_vic20_tick()` I forced ```C via1_pins |= M6522_PA6; ``` just before the `m6522_tick()`. Thas should set to 1 the cassette `SENSE` pin, but it doesn't seem to work. After I...
Same as https://github.com/floooh/chips/pull/44 , but from a different branch.
This PR implements several improvements on the mos6561 VIC chip as noted in #26 : - 4 bit DAC: by quickly changing the volume register, the VIC-20 can do a...