| IR: | 0 | PC: | 0 |
|---|---|---|---|
| SP: | 0 | AC: | 0 |
| MAR: | 0 | MBR: | 0 |
| Skupina | Mnemonik | Ukaz | Pomen |
|---|---|---|---|
| Osnovni | LOCO x | Load Constant | ac := x; |
| Direktno naslavljanje |
LODD x | Load direct | ac := m[x] |
| STOD x | Store direct | m[x] := ac | |
| ADDD x | Add direct | ac := ac + m[x] | |
| SUBD x | Substract direct | ac := ac - m[x] | |
| Posredno naslavljanje |
LODI x | Load indirect | ac := m[m[x]] |
| STOI x | Store indirect | m[m[x]] := ac | |
| ADDI x | Add indirect | ac := ac + m[m[x]] | |
| SUBI x | Substract indirect | ac := ac - m[m[x]] | |
| Lokalno naslavljanje |
LODL x | Load local | ac := m[sp + x] |
| STOL x | Store local | m[sp + x] := ac | |
| ADDL x | Add local | ac := ac + m[sp + x] | |
| SUBL x | Substract local | ac := ac - m[sp + x] | |
| Sklad | PUSH | Push onto stack | sp := sp - 1; m[sp] := ac |
| POP | Pop from stack | ac := m[sp]; sp := sp + 1 | |
| INSP y | Increment sp | sp := sp + y | |
| DESP y | Decrement sp | sp := sp - y | |
| Skoki | JUMP a | Jump unconditionally | pc := a |
| JPOS a | Jump pozitive | if ac ≥ 0 then pc := a | |
| JZER a | Jump zero | if ac = 0 then pc := a | |
| JNZE a | Jump nonzero | if ac ≠ 0 then pc := a | |
| JNEG a | Jump negative | if ac < 0 then pc := a | |
| Procedure | CALL a | Call procedure | sp := sp - 1; m[sp] := pc; pc := a |
| RETN | Return | pc := m[sp]; sp := sp + 1 | |
| Ostalo | PSHI | Push indirect | sp := sp - 1; m[sp] := m[ac] |
| POPI | Pop indirect | m[ac] := m[sp]; sp := sp + 1 | |
| SWAP | Swap ac, sp | tmp := ac; ac := sp; sp := tmp |
x = 12-bitni naslov ali vrednost
y = 8-bitna konstanta
a = 12-bitni naslov; namesto tega se lahko uporabi labela (niz)