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CHAPTER 18 INSTRUCTION SET
242
Increments the program counter PC value, stores it to stack, and branches to a subroutine specified by addr.
<3> Example 1
..................
............
..................
SUB:
RET
CALL
SUB1
MAIN
Example 2
...............
............
...........
SUB1:
CALL
SUB1
MAIN
CALL SUB2
RET
...........
...........
SUB2:
CALL SUB3
RET
...........
...............................
SUB3:
RET
(2)
CALL @AR
Call subroutine specified by address register
<1> OP code
00111
000
0101
0000
<2> Function
SP
←
SP–1,
ASR
←
PC,
PC
←
AR
Increments and saves to the stack the program counter PC value, and branches to a subroutine that starts
from the address specified by address register AR.
Содержание mPD17120 Subseries
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