Datasheet

Instruction Set Description

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4.6.2.43 SETC

* SETC Set carry bit

SETC

Syntax

Operation 1 → C

BIS #1,SR

Emulation

Description The carry bit (C) is set.

Status Bits N: Not affected

Z: Not affected

C: Set

V: Not affected

Mode Bits OSCOFF, CPUOFF, and GIE are not affected.

Example

Emulation of the decimal subtraction:

Subtract R5 from R6 decimally.

Assume that R5 = 03987h and R6 = 04137h.

DSUB ADD #06666h,R5 ; Move content R5 from 0-9 to 6-0Fh

; R5 = 03987h + 06666h = 09FEDh

INV R5 ; Invert this (result back to 0-9)

; R5 = .NOT. R5 = 06012h

SETC ; Prepare carry = 1

DADD R5,R6 ; Emulate subtraction by addition of:

; (010000h - R5 - 1)

; R6 = R6 + R5 + 1

; R6 = 0150h

206

CPUX SLAU144J–December 2004–Revised July 2013

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