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FR81 Family
264 FUJITSU MICROELECTRONICS LIMITED CM71-00105-1E
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.88
7.88 FST (Store Word Data in Floating Point Register to
Memory)
Loads the word data in FRi to memory address BP+u16 × 4. Unsigned u16 value is
calculated. The value in u16 × 4 is specified as udisp18.
Assembler Format
FST FRi, @(BP, udisp18)
Operation
FRi (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 (a data access error or FPU
absence error), or an interrupt is detected.
NZVC
----
MSB LSB
(n+0)000101110111 FRi
(n+2) u16