All of these are considered general purpose registers except for VF which is used for carry, borrow, shift, overflow, and collision detection. The CHIP-8 has 16, 8-bit virtual registers: V0, V1, V2, V3, V4, V5, V6, V7, V8, V9, VA, VB, VC, VD, VE, and VF. There are plenty of examples in games/sources to learn from. an instruction cannot appear at the beginning of a line). commentĪ label must appear at the very beginning of the line, and there must be at least a single whitespace character before the instruction or directive of a line (i.e. The original CHIP-8 had 16 virtual keys had the layout on the left, which has been mapped (by default) to the keyboard layout on the right: Use this if you intend to assemble and run a ROM on actual ETI-660 hardware or if you have a ROM assembled for the ETI (good luck finding one!). The ETI-660 loads CHIP-8 programs starting at address 0圆00 instead of 0x200. This will tell the emulator to assemble and load ROMs in a mode that supports the ETI-660. Note: You can launch the emulator with -eti. You can also press H at any time to see the list of key commands available to you. Once launched simply drag a ROM or C8 source file into the app to load it. SDL2.DLL is missing (or not installed).If you get a panic on startup or the application fails to launch for an unknown reason, it’s most likely due to one of the following: You should have a chip-8 executable ready to run. $ rsrc -arch -ico chip-8.ico -o chip-8.syso
