cc65/libsrc/vic20/kplot.s

;
; Ullrich von Bassewitz, 2002-12-09
;
; PLOT replacement function for the VIC20. The kernal function does not set
; the pointer to the color RAM correctly.
;

        .export         PLOT

.scope  KERNAL
        .include        "cbm_kernal.inc"
.endscope

.proc   PLOT

        bcs     @L1
        jsr     KERNAL::PLOT            ; Set cursor position using original ROM PLOT
        jmp     KERNAL::UPDCRAMPTR      ; Set pointer to color RAM to match new cursor position

@L1:    jmp     KERNAL::PLOT            ; Get cursor position

.endproc
Fixed the PLOT function git-svn-id: svn://svn.cc65.org/cc65/trunk@1728 b7a2c559-68d2-44c3-8de9-860c34a00d81 2002-12-09 10:45:16 +00:00			`;`
			`; Ullrich von Bassewitz, 2002-12-09`
			`;`
			`; PLOT replacement function for the VIC20. The kernal function does not set`
			`; the pointer to the color RAM correctly.`
			`;`

			`.export PLOT`

libsrc/*/kplot.s: Use cbm_kernal.inc symbols, not hardcoded addrs On C64, VIC-20 and Plus/4, the conio library PLOT routine uses direct calls into the Kernal, including the Kernal PLOT routine that we're replacing. These were previously hardcoded addresses; we change these to use the symbols for those routines defined in cbm_kernal.inc. (This changes no functionality.) To do this, we need to import cbm_kernal.inc in a namespace so we don't have a collision between the PLOT that we're defining and the Kernal definition. We also add a UPDCRAMPTR symbol (used by kplot for VIC-20 and C64) to the direct entry kernal routines in in cbm_kernal.inc, and expand the comments describing what the "direct entry" Kernal routines are. <greg.king5@verizon.net> (GitHub: greg-king5) came up with this idea and did initial testing of it. This has been tested on VICE xvic, x64 and xplus4 emulators with a program that does a cputs() call (github.com/0cjs/vic20cc65) to confirm that it works the same way after as it did before. 2019-10-24 04:46:41 +00:00			`.scope KERNAL`
			`.include "cbm_kernal.inc"`
			`.endscope`
Fixed the PLOT function git-svn-id: svn://svn.cc65.org/cc65/trunk@1728 b7a2c559-68d2-44c3-8de9-860c34a00d81 2002-12-09 10:45:16 +00:00
			`.proc PLOT`

Remove trailings spaces from CBM-related asm files 2019-03-22 21:54:05 +00:00			`bcs @L1`
libsrc/*/kplot.s: Use cbm_kernal.inc symbols, not hardcoded addrs On C64, VIC-20 and Plus/4, the conio library PLOT routine uses direct calls into the Kernal, including the Kernal PLOT routine that we're replacing. These were previously hardcoded addresses; we change these to use the symbols for those routines defined in cbm_kernal.inc. (This changes no functionality.) To do this, we need to import cbm_kernal.inc in a namespace so we don't have a collision between the PLOT that we're defining and the Kernal definition. We also add a UPDCRAMPTR symbol (used by kplot for VIC-20 and C64) to the direct entry kernal routines in in cbm_kernal.inc, and expand the comments describing what the "direct entry" Kernal routines are. <greg.king5@verizon.net> (GitHub: greg-king5) came up with this idea and did initial testing of it. This has been tested on VICE xvic, x64 and xplus4 emulators with a program that does a cputs() call (github.com/0cjs/vic20cc65) to confirm that it works the same way after as it did before. 2019-10-24 04:46:41 +00:00			`jsr KERNAL::PLOT ; Set cursor position using original ROM PLOT`
			`jmp KERNAL::UPDCRAMPTR ; Set pointer to color RAM to match new cursor position`
Fixed the PLOT function git-svn-id: svn://svn.cc65.org/cc65/trunk@1728 b7a2c559-68d2-44c3-8de9-860c34a00d81 2002-12-09 10:45:16 +00:00
libsrc/*/kplot.s: Use cbm_kernal.inc symbols, not hardcoded addrs On C64, VIC-20 and Plus/4, the conio library PLOT routine uses direct calls into the Kernal, including the Kernal PLOT routine that we're replacing. These were previously hardcoded addresses; we change these to use the symbols for those routines defined in cbm_kernal.inc. (This changes no functionality.) To do this, we need to import cbm_kernal.inc in a namespace so we don't have a collision between the PLOT that we're defining and the Kernal definition. We also add a UPDCRAMPTR symbol (used by kplot for VIC-20 and C64) to the direct entry kernal routines in in cbm_kernal.inc, and expand the comments describing what the "direct entry" Kernal routines are. <greg.king5@verizon.net> (GitHub: greg-king5) came up with this idea and did initial testing of it. This has been tested on VICE xvic, x64 and xplus4 emulators with a program that does a cputs() call (github.com/0cjs/vic20cc65) to confirm that it works the same way after as it did before. 2019-10-24 04:46:41 +00:00			`@L1: jmp KERNAL::PLOT ; Get cursor position`
Fixed the PLOT function git-svn-id: svn://svn.cc65.org/cc65/trunk@1728 b7a2c559-68d2-44c3-8de9-860c34a00d81 2002-12-09 10:45:16 +00:00
			`.endproc`