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CM71-00105-1E FUJITSU MICROELECTRONICS LIMITED 265
FR81 Family
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.89
7.89 FSTM (Single Precision Floating Point Data Store from
Multiple Register)
The registers shown on frlist are sequentially saved in the stack. Registers FR0 to FR15
can be set on the frlist. They are processed in descending order of register numbers.
● Assembler Format
FSTM (frlist)
● Operation
The following operations are repeated according to the number of registers specified in the parameter frlist.
R15 - 4 → R15
(R15) → FRi
The bit and register relation of frlist of FSTM instruction is shown in Table 7.89-1.
● Classification
Single-precision floating point instruction, FR81 family
● Execution Cycles
na cycle (n: Transfer register number)
● Instruction Format
Table 7.89-1 The bit and register relation of frlist of FSTM instruction
bit1514131211109876543210
FRi FR0 FR1 FR2 FR3 FR4 FR5 FR6 FR7 FR8 FR9 FR10 FR11 FR12 FR13 FR14 FR15
MSB LSB
(n+0)00010111110111 -
(n+2) frlist