cc65/libsrc/runtime/negabs.s

;
; Ullrich von Bassewitz, 05.08.1998
;
; int abs (int x);
; and
; CC65 runtime: negation on ints
;

        .export         negax
        .export         _abs

_abs:   cpx     #$00            ; test hi byte
        bpl     L1              ; don't touch if positive
negax:  clc
        eor     #$FF
        adc     #1
        pha
        txa
        eor     #$FF
        adc     #0
        tax
        pla
 L1:    rts
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00			`;`
			`; Ullrich von Bassewitz, 05.08.1998`
			`;`
Adapted div & mod for popptr1. 2018-05-24 01:55:40 +00:00			`; int abs (int x);`
			`; and`
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00			`; CC65 runtime: negation on ints`
			`;`

Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 11:56:54 +00:00			`.export negax`
Adapted div & mod for popptr1. 2018-05-24 01:55:40 +00:00			`.export _abs`
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00
Adapted div & mod for popptr1. 2018-05-24 01:55:40 +00:00			`_abs: cpx #$00 ; test hi byte`
			`bpl L1 ; don't touch if positive`
Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 11:56:54 +00:00			`negax: clc`
			`eor #$FF`
			`adc #1`
			`pha`
			`txa`
			`eor #$FF`
			`adc #0`
			`tax`
			`pla`
Adapted div & mod for popptr1. 2018-05-24 01:55:40 +00:00			`L1: rts`
This commit was generated by cvs2svn to compensate for changes in r2, which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-05-28 13:40:48 +00:00