| examples | ||
| js | ||
| .gitignore | ||
| index.html | ||
| isa.html | ||
| README.md | ||
MatCat 8SA1 CPU Simulator
This is a simple JS based simulator to simulate the function of the 8SA1 CPU.
Work In Progress
ISA Layout
LDx 0x0000:0x00FF / STx 0x0100:0x01FF
| bits | mode |
|---|---|
| 0b000XXXXX | Immediate (8/16) |
| 0b001XXXXX | Absolute + (Immediate (16) Offset) |
| 0b010XXXXX | Absolute (16) |
| 0b011XXXXX | Absolute (24) |
| 0b100XXXXX | Indirect (16) |
| 0b101XXXXX | Indirect (24) |
| 0b110XXXXX | Indirect + (Immediate (16) Offset) |
| 0b111XXXXX | Absolute + (Absolute (16) Offset) |
| Registers | bits |
|---|---|
| AL | 0b00010 0x02 |
| AH | 0b00011 0x03 |
| BL | 0b00100 0x04 |
| BH | 0b00101 0x05 |
| CL | 0b00110 0x06 |
| CH | 0b00111 0x07 |
| DL | 0b01000 0x08 |
| DH | 0b01001 0x09 |
| AB | 0b01010 0x0A |
| AC | 0b01011 0x0B |
| AD | 0b01100 0x0C |
| BA | 0b01101 0x0D |
| BC | 0b01110 0x0E |
| BD | 0b01111 0x0F |
| CA | 0b10000 0x10 |
| CB | 0b10001 0x11 |
| CD | 0b10010 0x12 |
| DA | 0b10011 0x13 |
| DB | 0b10100 0x14 |
| DC | 0b10101 0x15 |