NEC PD75402A Manuale Utente

Function: reg 

←

 reg + 1; Skip if reg = 0

Increments the contents of register reg (X, A, H, L). When the contents of register reg become 0 as the result

of incrementing, skips the next instruction.

Functions: (mem) 

←

  (mem) + 1; Skip if (mem) = 0, mem = D

7

 to D

0

 : 00H to FFH

Increments the data memory contents addressed by 8-bit immediate data mem. When the data memory

contents become 0 as a result of incrementing, skips the next instruction.

Function: reg 

←

 reg - 1; Skip if reg = FH

Decrements the contents of register reg (X, A, H, L). When the contents of register reg become FH as a result

of decrementing, skips the next instruction.