UPD784020 Datasheet, PDF (56/90 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCOMPUTER

mPD784020, 784021
(3) 24-bit instructions (The instructions enclosed in parentheses are implemented by a combination of
operands, where WHL is described as rg.)
MOVG, ADDG, SUBG, INCG, DECG, PUSH, POP
Table 13-3 Instructions Implemented by 24-Bit Addressing
2nd operand #imm24
1st operand
WHL
rg
saddrg !!addr24 mem1 [%saddrg] SP
rg'
WHL
(MOVG)
(ADDG)
(SUBG)
(MOVG)
(ADDG)
(SUBG)
(MOVG)
(ADDG)
(SUBG)
(MOVG)
ADDG
SUBG
(MOVG) MOVG
MOVG
MOVG
rg
MOVG (MOVG) MOVG MOVG MOVG
ADDG (ADDG) ADDG
SUBG (SUBG) SUBG
saddrg
!!addr24
mem1
[%saddrg]
SP
MOVG
(MOVG) MOVG
(MOVG) MOVG
MOVG
MOVG
MOVG
None^Note
INCG
DECG
PUSH
POP
INCG
DECG
Note There is no second operand, or the second operand is not an operand address.
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