cc65/libsrc/atari/cvline.s

;
; Ullrich von Bassewitz, 08.08.1998
;
; void cvlinexy (unsigned char x, unsigned char y, unsigned char length);
; void cvline (unsigned char length);
;
        .include "atari.inc"

        .export         _cvlinexy, _cvline
        .import         gotoxy, putchar, setcursor
        .importzp       tmp1

CHRCODE =       $7C             ; Vertical bar

_cvlinexy:
        pha                     ; Save the length
        jsr     gotoxy          ; Call this one, will pop params
        pla                     ; Restore the length and run into _cvline

_cvline:
        cmp     #0              ; Is the length zero?
        beq     L9              ; Jump if done
        sta     tmp1
L1:     lda     COLCRS
        pha
        lda     #CHRCODE        ; Vertical bar
        jsr     putchar         ; Write, no cursor advance
        pla
        sta     COLCRS
        inc     ROWCRS
        dec     tmp1
        bne     L1
L9:     jmp     setcursor
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, 08.08.1998`
			`;`
			`; void cvlinexy (unsigned char x, unsigned char y, unsigned char length);`
			`; void cvline (unsigned char length);`
			`;`
Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 11:56:54 +00:00			`.include "atari.inc"`
remove dangling spaces 2022-04-17 14:06:22 +00:00
Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 11:56:54 +00:00			`.export _cvlinexy, _cvline`
Introduced internal gotoxy that pops both parameters. About all CONIO functions offering a <...>xy variant call popa _gotoxy By providing an internal gotoxy variant that starts with a popa all those CONIO function can be shortened by 3 bytes. As soon as program calls more than one CONIO function this means an overall code size reduction. 2016-06-05 12:58:38 +00:00			`.import gotoxy, putchar, setcursor`
Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 11:56:54 +00:00			`.importzp tmp1`
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
Normalized style. We don't use .ifndef .else .endif 2014-06-03 16:30:11 +00:00			`CHRCODE = $7C ; Vertical bar`
add some conio functions 2014-03-11 00:17:59 +00:00
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			`_cvlinexy:`
Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 11:56:54 +00:00			`pha ; Save the length`
Introduced internal gotoxy that pops both parameters. About all CONIO functions offering a <...>xy variant call popa _gotoxy By providing an internal gotoxy variant that starts with a popa all those CONIO function can be shortened by 3 bytes. As soon as program calls more than one CONIO function this means an overall code size reduction. 2016-06-05 12:58:38 +00:00			`jsr gotoxy ; Call this one, will pop params`
Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 11:56:54 +00:00			`pla ; Restore the length and run into _cvline`
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
			`_cvline:`
Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 11:56:54 +00:00			`cmp #0 ; Is the length zero?`
			`beq L9 ; Jump if done`
			`sta tmp1`
			`L1: lda COLCRS`
			`pha`
add some conio functions 2014-03-11 00:17:59 +00:00			`lda #CHRCODE ; Vertical bar`
Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 11:56:54 +00:00			`jsr putchar ; Write, no cursor advance`
			`pla`
			`sta COLCRS`
			`inc ROWCRS`
			`dec tmp1`
			`bne L1`
			`L9: jmp setcursor`