NEC 3. Only when rp = BC, DE or HL 4. Except "r = A"

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CHAPTER 27 INSTRUCTION SET
Clock Flag
Note 1 Note 2 ZACCY
rp, #word 3 6 – rp ← word
saddrp, #word 4 8 10 (saddrp) ← word
sfrp, #word 4 – 10 sfrp ← word
AX, saddrp 2 6 8 AX ← (saddrp)
saddrp, AX 2 6 8 (saddrp) ← AX
MOVW AX, sfrp 2 – 8 AX ← sfrp
sfrp, AX 2 – 8 sfrp ← AX
AX, rp Note 3 1 4 – AX ← rp
rp, AX Note 3 1 4 – rp ← AX
AX, !addr16 3 10 12 + 2n AX ← (addr16)
!addr16, AX 3 10 12 + 2m (addr16) ← AX
XCHW AX, rp Note 3 1 4 – AX ↔ rp
A, #byte 2 4 – A, CY ← A + byte ×××
saddr, #byte 3 6 8 (saddr), CY ← (saddr) + byte ×××
A, r Note 4 2 4 – A, CY ← A + r ×××
r, A 2 4 – r, CY ← r + A ×××
A, saddr 2 4 5 A, CY ← A + (saddr) ×××
A, !addr16 3 8 9 + n A, CY ← A + (addr16) ×××
A, [HL] 1 4 5 + n A, CY ← A + (HL) ×××
A, [HL + byte] 2 8 9 + n A, CY ← A + (HL + byte) ×××
A, [HL + B] 2 8 9 + n A, CY ← A + (HL + B) ×××
A, [HL + C] 2 8 9 + n A, CY ← A + (HL + C) ×××
A, #byte 2 4 – A, CY ← A + byte + CY ×××
saddr, #byte 3 6 8 (saddr), CY ← (saddr) + byte + CY ×××
A, r Note 4 2 4 – A, CY ← A + r + CY ×××
r, A 2 4 – r, CY ← r + A + CY ×××
A, saddr 2 4 5 A, CY ← A + (saddr) + CY ×××
A, !addr16 3 8 9 + n A, CY ← A + (addr16) + CY ×××
A, [HL] 1 4 5 + n A, CY ← A + (HL) + CY ×××
A, [HL + byte] 2 8 9 + n A, CY ← A + (HL + byte) + CY ×××
A, [HL + B] 2 8 9 + n A, CY ← A + (HL + B) + CY ×××
A, [HL + C] 2 8 9 + n A, CY ← A + (HL + C) + CY ×××
Notes 1. When the internal high-speed RAM area is accessed or instruction with no data access.
2. When an area except the internal high-speed RAM area is accessed.
3. Only when rp = BC, DE or HL
4. Except "r = A"
Remarks 1. One instruction clock cycle is one cycle of the CPU clock (fCPU) selected by the processor clock
control register (PCC).
2. This clock cycle applies to internal ROM program.
3. n is the number of waits when external memory expansion area is read from.
4. m is the number of waits when external memory expansion area is written to.
Mnemonic Operands Byte Operation
Instruction
Group
16-bit
data
transfer
ADD
ADDC
8-bit
operation