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FR81 Family
400 FUJITSU MICROELECTRONICS LIMITED CM71-00105-1E
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.160
7.160 STB (Store Byte Data in Register to Memory)
Loads the byte data in Ri to memory address BP+u16. Unsigned u16 value is calculated.
The value in u16 is specified as udisp16.
● Assembler Format
STB Ri, @(BP, udisp16)
● Operation
Ri → (BP+u16)
● Flag Change
N, Z, V, C: Unchanged.
● Classification
Memory Store instruction, FR81 family
● Execution Cycles
a cycle
● Instruction Format
● EIT Occurrence and Detection
A data access protection violation exception, an invalid instruction exception (data access error), or an
interrupt is detected.
NZVC
----
MSB LSB
(n+0)000101100110 Ri
(n+2) u16