cc65/libsrc/apple2/_scrsize.s

;
; Ullrich von Bassewitz, 26.10.2000
;
; Screen size variables
;

        .export	      	screensize

        .include        "apple2.inc"

screensize:
        ldx	WNDWDTH
        lda	WNDBTM
        sec
        sbc	WNDTOP
        tay
        rts
Two module splits git-svn-id: svn://svn.cc65.org/cc65/trunk@396 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-10-26 20:43:29 +00:00			`;`
			`; Ullrich von Bassewitz, 26.10.2000`
			`;`
			`; Screen size variables`
			`;`

New version from Oliver Schmidt git-svn-id: svn://svn.cc65.org/cc65/trunk@3421 b7a2c559-68d2-44c3-8de9-860c34a00d81 2005-03-26 17:03:30 +00:00			`.export screensize`

			`.include "apple2.inc"`
Two module splits git-svn-id: svn://svn.cc65.org/cc65/trunk@396 b7a2c559-68d2-44c3-8de9-860c34a00d81 2000-10-26 20:43:29 +00:00
New code from Oliver Schmidt git-svn-id: svn://svn.cc65.org/cc65/trunk@3351 b7a2c559-68d2-44c3-8de9-860c34a00d81 2005-01-06 12:26:47 +00:00			`screensize:`
New version from Oliver Schmidt git-svn-id: svn://svn.cc65.org/cc65/trunk@3421 b7a2c559-68d2-44c3-8de9-860c34a00d81 2005-03-26 17:03:30 +00:00			`ldx WNDWDTH`
			`lda WNDBTM`
			`sec`
			`sbc WNDTOP`
			`tay`
Make screensize() fetch the values dynamically instead of using variables that are set on startup. This is needed to support the C128, which can switch the screen size at runtime. git-svn-id: svn://svn.cc65.org/cc65/trunk@2042 b7a2c559-68d2-44c3-8de9-860c34a00d81 2003-04-09 19:34:57 +00:00			`rts`