SAB80515 Datasheet, PDF(192/270 Page) Siemens Semiconductor Group – 8-Bit Single-Chip Microcontroller Family

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SAB80515 Datasheet, PDF (192/270 Pages) Siemens Semiconductor Group – 8-Bit Single-Chip Microcontroller Family

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Instruction Set

RET

Function:

Description:

Example:

Return from subroutine

RET pops the high and low-order bytes of the PC successively from the stack,

decrementing the stack pointer by two. Program execution continues at the

resulting address, generally the instruction immediately following an ACALL or

LCALL. No flags are affected.

The stack pointer originally contains the value 0BH. Internal RAM locations 0AH

and 0BH contain the values 23H and 01H, respectively. The instruction

RET

Operation:

will leave the stack pointer equal to the value 09H. Program execution will continue

at location 0123H.

RET

(PC15-8) â ((SP))

(SP) â (SP) â 1

(PC7-0) â ((SP))

(SP) â (SP) â 1

Encoding:

Bytes:

Cycles:

0010 0010

1

2

Semiconductor Group

192

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