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DESCRIPTION OF INSTRUCTIONS
231
7. DESCRIPTION OF INSTRUCTIONS
7.1 Outline
MSM80C154S/MSM83C154S is a microcontroller designed for parallel processing in an
8-bit ALU. The instructions consist of 8-bit units of data, and are available as 1-word 1 -
machine, 2-machine, and 4-machine cycle instructions as well as 2-word 1-machine
and 2-machine cycle instructions and 3-word 2-machine cycle instructions. There is a
total of 112 instructions classified into the following groups.
(1) Arithmetic and logic instructions (15)
(2) Accumulator operation instructions (7)
(3) Increment & decrement instructions (9)
(4) Logical operation instructions (18)
(5) Immediate data setting instructions (5)
(6) Carry flag operation instructions (7)
(7) Bit transfer instructions (3)
(8) Bit manipulaton instructions (3)
(9) Data transfer instructions (11)
(10) Constant value instructions (2)
(11) Data exchange instructions (4)
(12) Subroutine instructions (6)
(13) Jump instructions (4)
(14) Branching instructions (13)
(15) External data memory instructions (4)
(16) Other instruction (1)