Chasm - Chip8 Assembler

A basic assembler for chip8 to generate bytecode using a pseudo-assembly language

How to transform asm in binary code:

chasm compile -i pong.asm -o pong.c8

How to transform binary code in asm:

chasm decompile -i pong.c8 -o pong.asm

All opcodes supported by ISA

| OPCODE | MNEMONIC | | ------- | -------------------- | | 00E0 | CLS | | 00EE | RET | | 0NNN | SYS (addr) | | 1NNN | JP (addr) | | 2NNN | CALL (addr) | | 3XNN | SE (Vx, byte) | | 4XNN | SNE (Vx, byte) | | 5XY0 | SE (Vx, Vy) | | 6XNN | LD (Vx, byte) | | 7XNN | ADD (Vx, byte) | | 8XY0 | LD (Vx, Vy) | | 8XY1 | OR (Vx, Vy) | | 8XY2 | AND (Vx, Vy) | | 8XY3 | XOR (Vx, Vy) | | 8XY4 | ADD (Vx, Vy) | | 8XY5 | SUB (Vx, Vy) | | 8XY6 | SHR Vx {, Vy} | | 8XY7 | SUBN (Vx, Vy) | | 8XYE | SHL Vx {, Vy} | | 9XY0 | SNE (Vx, Vy) | | ANNN | LD I, (addr) | | BNNN | JP (addr, V0) | | CXNN | RND (Vx, byte) | | DXYN | DRW (Vx, Vy, nibble) | | EX9E | SKP (Vx) | | EXA1 | SKNP (Vx) | | FX07 | LD (Vx), DT | | FX0A | LD (Vx), K | | FX15 | LD DT, (Vx) | | FX18 | LD ST, (Vx) | | FX1E | ADD I, (Vx) | | FX29 | LD F, (Vx) | | FX33 | LD B, (Vx) | | FX55 | LD [I], (Vx) | | FX65 | LD (Vx), [I] | | | DW #NNNN |

Super chip8

| OPCODE | MNEMONIC | | ------- | -------------------- | | 00CN | SCD (nibble) | | 00FB | SCR | | 00FC | SCL | | 00FD | EXIT | | 00FE | LOW | | 00FF | HIGH | | FX30 | LD HF, Vx | | FX75 | LD R, Vx | | FX85 | LD Vx, R |