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Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 41 |
1 files changed, 34 insertions, 7 deletions
@@ -1,13 +1,40 @@ # 8-Bit CPU Emulator +## CPU Architecture +- Word Size + - **Data Width:** 8 bits + - **Address width:** 16 bits + - **Address space:** 64 KB (0x0000- 0xFFFF) + ## Supported Instructions -1. MOV -2. ADD -3. SUB -4. JMP (Jump) -5. JZ (Jump if zero) -5. JZ (Jump if not zero) -6. HLT (Halt) + +| Instruction | Syntax | +| ----------- | ------------ | +| MOV | mov reg, imm | +| ADD | add r1, r2 | +| SUB | sub r1, r2 | +| JMP | jmp addr | +| JZ | jz addr | +| JNZ | jnz addr | +| HLT (Halt) | hlt | + + +## Registers +| Register | Size | Description | +| -------- | ------ | ------------------------------ | +| A | 8-bit | General | +| B | 8-bit | General | +| C | 8-bit | General | +| D | 8-bit | General | +| PC | 16-bit | Program Counter | +| SP | 16-bit | Stack pointer (unused for now) | + +## Flags +| Flag | Description | +| ----- | ------------ | +| Z | Zero Flag | +| C | Carry/Borrow | + # Usage ```bash |