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FR81 Family
262 FUJITSU MICROELECTRONICS LIMITED CM71-00105-1E
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.86
7.86 FST (Single Precision Floating Point Data Store)
Loads the value in FRi to memory address R15+u14 × 4. Unsigned u14 value is
calculated. The value in u14 × 4 is specified as udisp16.
● Assembler Format
FST FRi, @(R15,udisp16)
● Operation
FRi → (R15 + u14 × 4)
● Classification
Single-precision floating point 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.
MSB LSB
(n+0)00010111110101 u14
(n+2) u14 FRi