Fujitsu FR81 Computer Hardware User Manual


 
FR81 Family
304 FUJITSU MICROELECTRONICS LIMITED CM71-00105-1E
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.110
7.110 LDM1 (Load Multiple Registers)
Loads the word data of address R15 to multiple registers R8 to R15 specified in reglist,
repeats the operation of adding 4 to R15. Registers are processed in ascending
numerical order. If R15 is specified in the parameter reglist, the final contents of R15
will be read from memory.
Assembler Format
LDM1 (reglist)
Registers from R8 to R15 are separated in reglist, multiple register are arranged and specified.
Operation
The following operations are repeated according to the number of registers specified in the parameter
reglist.
(R15) Ri
R15+4 R15
Bit values and register numbers for reglist (LDM1) are shown in Table 7.110-1.
Table 7.110-1 Bit values and register numbers for reglist (LDM1)
Flag Change
N, Z, V, C: Unchanged.
Bit Register
7R15
6R14
5R13
4R12
3R11
2R10
1R9
0R8
NZVC
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