HD404339 Datasheet, PDF (16/78 Pages) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer with large-capacity memory

HD404339 Series
Instruction Set
Table 2 Instruction Set Classification
Instruction Type
Immediate
Register-to-register
RAM addressing
RAM register
Arithmetic
Compare
RAM bit manipulation
ROM addressing
Input/output
Control
Function
Number of
Instructions
Transferring constants to the accumulator, B register, and RAM. 4
Transferring contents of the B, Y, SPX, SPY, or memory registers to 8
the accumulator.
Available when accessing RAM in register indirect addressing
13
mode.
Transferring data between the accumulator and memory.
10
Performing arithmetic operations with the contents of the
25
accumulator, B register, or memory.
Comparing contents of the accumulator or memory with a constant. 12
Bit set, bit reset, and bit test.
6
Branching and jump instructions based on the status condition.
8
Controlling the input/output of the R and D ports; ROM data
11
reference with the P instruction.
Controlling the serial communication interface and low-power
4
dissipation modes.
Total: 101
instructions
16