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CM71-00105-1E FUJITSU MICROELECTRONICS LIMITED 389
FR81 Family
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.154
7.154 ST (Store Word Data in Register to Memory)
Loads the word data in Ri to memory address BP+u16 × 4. Unsigned u16 value is
calculated. The value in u16 × 4 is specified as udisp18.
Assembler Format
ST Ri, @(BP, udisp18)
Operation
Ri (BP+u16 × 4)
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)000101110100 Ri
(n+2) u16