Fujitsu CM71-00101-5E User Manual
254
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.133
ENTER (Enter Function)
This instruction is used for stack frame generation processing for high level languages.
The value "u8" is calculated as an unsigned value.
The value "u8" is calculated as an unsigned value.
■
ENTER (Enter Function)
Assembler format:
ENTER #u10
Operation:
R14
→
(R15 – 4)
R15 – 4
→
R14
R15 – extu (u8 × 4)
→
R15
Flag change:
N, Z, V, and C: Unchanged
Execution cycles:
1 + a cycles
Instruction format:
N
Z
V
C
–
–
–
–
MSB
LSB
0
0
0
0
1
1
1
1
u8