UPD784938 Datasheet, PDF (686/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 29 INSTRUCTION OPERATIONS
Mnemonic
Operands
SUB
A, #byte
r, #byte
saddr, #byte
sfr, #byte
r, r’
A, saddr2
r, saddr
saddr, r
r, sfr
sfr, r
saddr, saddr’
A, [saddrp]
A, [%saddrg]
[saddrp], A
[%saddrg], A
A, !addr16
A, !!addr24
!addr16, A
!!addr24, A
A, mem
mem, A
Bytes
Operation
2
3
3/4
4
2/3
2
3
3
3
3
4
3/4
3/4
3/4
3/4
4
5
4
5
2 to 5
2 to 5
A, CY ← A – byte
r, CY ← r – byte
(saddr), CY ← (saddr) – byte
sfr, CY ← sfr – byte
r, CY ← r – r’
A, CY ← A – (saddr2)
r, CY ← r – (saddr)
(saddr), CY ← (saddr) – r
r, CY ← r – sfr
sfr, CY ← sfr – r
(saddr), CY ← (saddr) – (saddr’)
A, CY ← A – ((saddrp))
A, CY ← A – ((saddrg))
((saddrp)), CY ← ((saddrp)) – A
((saddrg)), CY ← ((saddrg)) – A
A, CY ← A – (addr16)
A, CY ← A – (addr24)
(addr16), CY ← (addr16) – A
(addr24), CY ← (addr24) – A
A, CY ← A – (mem)
(mem), CY ← (mem) – A
Flags
S Z AC P/V CY
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
×××V×
686
Preliminary User’s Manual U13987EJ1V0UM00