MB89898 Datasheet, PDF (42/51 Pages) Fujitsu Component Limited. – 8-bit Proprietary Microcontroller

MB89890 Series
s INSTRUCTIONS (136 INSTRUCTIONS)
Execution instructions can be divided into the following four groups:
• Transfer
• Arithmetic operation
• Branch
• Others
Table 1 lists symbols used for notation of instructions.
Table 1 Instruction Symbols
Symbol
dir
off
ext
#vct
#d8
#d16
dir: b
rel
@
A
AH
AL
T
TH
TL
IX
EP
PC
SP
PS
dr
CCR
RP
Ri
×
(×)
(( × ))
Meaning
Direct address (8 bits)
Offset (8 bits)
Extended address (16 bits)
Vector table number (3 bits)
Immediate data (8 bits)
Immediate data (16 bits)
Bit direct address (8:3 bits)
Branch relative address (8 bits)
Register indirect (Example: @A, @IX, @EP)
Accumulator A (Whether its length is 8 or 16 bits is determined by the instruction in use.)
Upper 8 bits of accumulator A (8 bits)
Lower 8 bits of accumulator A (8 bits)
Temporary accumulator T (Whether its length is 8 or 16 bits is determined by the instruction in use.)
Upper 8 bits of temporary accumulator T (8 bits)
Lower 8 bits of temporary accumulator T (8 bits)
Index register IX (16 bits)
Extra pointer EP (16 bits)
Program counter PC (16 bits)
Stack pointer SP (16 bits)
Program status PS (16 bits)
Accumulator A or index register IX (16 bits)
Condition code register CCR (8 bits)
Register bank pointer RP (5 bits)
General-purpose register Ri (8 bits, i = 0 to 7)
Indicates that the very × is the immediate data.
(Whether its length is 8 or 16 bits is determined by the instruction in use.)
Indicates that the contents of × is the target of accessing.
(Whether its length is 8 or 16 bits is determined by the instruction in use.)
The address indicated by the contents of × is the target of accessing.
(Whether its length is 8 or 16 bits is determined by the instruction in use.)
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