From: cuz Date: Wed, 9 Apr 2003 19:34:57 +0000 (+0000) Subject: Make screensize() fetch the values dynamically instead of using variables X-Git-Tag: V2.12.0~1651 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=37178d5141375345ac209fc71dd8f386b9845ba0;p=cc65 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 --- diff --git a/libsrc/apple2/_scrsize.s b/libsrc/apple2/_scrsize.s index 5578c1be1..df849510c 100644 --- a/libsrc/apple2/_scrsize.s +++ b/libsrc/apple2/_scrsize.s @@ -4,12 +4,15 @@ ; Screen size variables ; - .export xsize, ysize + .export screensize -.rodata + .include "apple2.inc" -xsize: .byte 40 -ysize: .byte 24 +.proc screensize + ldx #XSIZE + ldy #YSIZE + rts +.endproc diff --git a/libsrc/apple2/apple2.inc b/libsrc/apple2/apple2.inc index 78f323dd0..7002f7aad 100644 --- a/libsrc/apple2/apple2.inc +++ b/libsrc/apple2/apple2.inc @@ -20,6 +20,12 @@ MEMSIZE = $73 ; Highest free RAM location BRKVec = $03F0 ; Break vector RESTOR = $03D0 ; Goto Dos +; --------------------------------------------------------------------------- +; Screen size + +XSIZE = 40 +YSIZE = 24 + ;----------------------------------------------------------------------------- ; Hardware diff --git a/libsrc/atari/_scrsize.s b/libsrc/atari/_scrsize.s index 5578c1be1..420505fa5 100644 --- a/libsrc/atari/_scrsize.s +++ b/libsrc/atari/_scrsize.s @@ -4,12 +4,14 @@ ; Screen size variables ; - .export xsize, ysize + .export screensize -.rodata +.proc screensize -xsize: .byte 40 -ysize: .byte 24 + ldx #40 + ldy #24 + rts +.endproc diff --git a/libsrc/c128/_scrsize.s b/libsrc/c128/_scrsize.s index dcbc4a2d9..1f38ea65c 100644 --- a/libsrc/c128/_scrsize.s +++ b/libsrc/c128/_scrsize.s @@ -4,26 +4,19 @@ ; Screen size variables ; - .export xsize, ysize - .import SCREEN - .constructor initscrsize + .export screensize + .include "c128.inc" -.code - -initscrsize: - jsr SCREEN - inx - stx xsize - iny - sty ysize - rts - -.bss - -xsize: .res 1 -ysize: .res 1 +.proc screensize + ldx #40 ; Assume 40 column mode + bit MODE + bpl C40 ; Jump if 40 column mode + ldx #80 +C40: ldy #25 + rts +.endproc diff --git a/libsrc/c16/_scrsize.s b/libsrc/c16/_scrsize.s index c63df59d2..c0a746198 100644 --- a/libsrc/c16/_scrsize.s +++ b/libsrc/c16/_scrsize.s @@ -4,22 +4,9 @@ ; Screen size variables ; - .export xsize, ysize + .export screensize .import SCREEN - .constructor initscrsize - -.code - -initscrsize: - jsr SCREEN - stx xsize - sty ysize - rts - -.bss - -xsize: .res 1 -ysize: .res 1 +screensize = SCREEN diff --git a/libsrc/c16/cputc.s b/libsrc/c16/cputc.s index 680dc5593..26bc2ae5a 100644 --- a/libsrc/c16/cputc.s +++ b/libsrc/c16/cputc.s @@ -8,7 +8,6 @@ .export _cputcxy, _cputc, cputdirect, putchar .export newline, plot .import popa, _gotoxy - .import xsize .import PLOT .include "../plus4/plus4.inc" @@ -50,7 +49,7 @@ cputdirect: advance: iny - cpy xsize + cpy #XSIZE bne L3 jsr newline ; new line ldy #0 ; + cr @@ -59,13 +58,13 @@ L3: sty CURS_X newline: clc - lda xsize + lda #XSIZE adc SCREEN_PTR sta SCREEN_PTR bcc L4 inc SCREEN_PTR+1 clc -L4: lda xsize +L4: lda #XSIZE adc CRAM_PTR sta CRAM_PTR bcc L5 diff --git a/libsrc/c64/_scrsize.s b/libsrc/c64/_scrsize.s index c63df59d2..c0a746198 100644 --- a/libsrc/c64/_scrsize.s +++ b/libsrc/c64/_scrsize.s @@ -4,22 +4,9 @@ ; Screen size variables ; - .export xsize, ysize + .export screensize .import SCREEN - .constructor initscrsize - -.code - -initscrsize: - jsr SCREEN - stx xsize - sty ysize - rts - -.bss - -xsize: .res 1 -ysize: .res 1 +screensize = SCREEN diff --git a/libsrc/c64/c64.inc b/libsrc/c64/c64.inc index e93872f93..471551c26 100644 --- a/libsrc/c64/c64.inc +++ b/libsrc/c64/c64.inc @@ -11,7 +11,7 @@ ST = $90 ; IEC status byte TIME = $A0 ; 60 HZ clock FNAM_LEN = $B7 ; Length of filename SECADR = $B9 ; Secondary address -DEVNUM = $BA ; Device number +DEVNUM = $BA ; Device number FNAM = $BB ; Pointer to filename KEY_COUNT = $C6 ; Number of keys in input buffer RVS = $C7 ; Reverse flag @@ -43,6 +43,12 @@ IRQVec = $0314 BRKVec = $0316 NMIVec = $0318 +; --------------------------------------------------------------------------- +; Screen size + +XSIZE = 40 +YSIZE = 25 + ; --------------------------------------------------------------------------- ; I/O: VIC diff --git a/libsrc/c64/cputc.s b/libsrc/c64/cputc.s index 83a0c8b63..cf4275668 100644 --- a/libsrc/c64/cputc.s +++ b/libsrc/c64/cputc.s @@ -8,7 +8,6 @@ .export _cputcxy, _cputc, cputdirect, putchar .export newline, plot .import popa, _gotoxy - .import xsize .import PLOT .include "c64.inc" @@ -50,7 +49,7 @@ cputdirect: advance: iny - cpy xsize + cpy #XSIZE bne L3 jsr newline ; new line ldy #0 ; + cr @@ -59,13 +58,13 @@ L3: sty CURS_X newline: clc - lda xsize + lda #XSIZE adc SCREEN_PTR sta SCREEN_PTR bcc L4 inc SCREEN_PTR+1 clc -L4: lda xsize +L4: lda #XSIZE adc CRAM_PTR sta CRAM_PTR bcc L5 diff --git a/libsrc/cbm510/_scrsize.s b/libsrc/cbm510/_scrsize.s index 5c0fb14e7..99a758455 100644 --- a/libsrc/cbm510/_scrsize.s +++ b/libsrc/cbm510/_scrsize.s @@ -4,12 +4,16 @@ ; Screen size variables ; - .export xsize, ysize + .export screensize -.rodata + .include "cbm510.inc" -xsize: .byte 40 -ysize: .byte 25 +.proc screensize + ldx #XSIZE + ldy #YSIZE + rts + +.endproc diff --git a/libsrc/cbm510/cbm510.inc b/libsrc/cbm510/cbm510.inc index 75ef374b7..1e66e2c6d 100644 --- a/libsrc/cbm510/cbm510.inc +++ b/libsrc/cbm510/cbm510.inc @@ -192,6 +192,12 @@ MoniSegSave = $03f0 wstvec = $03F8 WstFlag = $03FA ; Warm start flag +; --------------------------------------------------------------------------- +; Screen size + +XSIZE = 40 +YSIZE = 25 + ;----------------------------------------------------------------------------- ; I/O Definitions diff --git a/libsrc/cbm510/cputc.s b/libsrc/cbm510/cputc.s index e0c0e7837..6e321a017 100644 --- a/libsrc/cbm510/cputc.s +++ b/libsrc/cbm510/cputc.s @@ -10,7 +10,6 @@ .import PLOT .import popa, _gotoxy - .import xsize .include "cbm510.inc" @@ -53,7 +52,7 @@ cputdirect: advance: iny - cpy xsize + cpy #XSIZE bne L3 jsr newline ; new line ldy #0 ; + cr @@ -62,13 +61,13 @@ L3: sty CURS_X newline: clc - lda xsize + lda #XSIZE adc SCREEN_PTR sta SCREEN_PTR bcc L4 inc SCREEN_PTR+1 clc -L4: lda xsize +L4: lda #XSIZE adc CRAM_PTR sta CRAM_PTR bcc L5 diff --git a/libsrc/cbm610/_scrsize.s b/libsrc/cbm610/_scrsize.s index f7095af75..928972bcc 100644 --- a/libsrc/cbm610/_scrsize.s +++ b/libsrc/cbm610/_scrsize.s @@ -4,12 +4,16 @@ ; Screen size variables ; - .export xsize, ysize + .export screensize -.rodata + .include "cbm610.inc" -xsize: .byte 80 -ysize: .byte 25 +.proc screensize + ldx #XSIZE + ldy #YSIZE + rts + +.endproc diff --git a/libsrc/cbm610/cbm610.inc b/libsrc/cbm610/cbm610.inc index 4f259ed2a..942c6bf84 100644 --- a/libsrc/cbm610/cbm610.inc +++ b/libsrc/cbm610/cbm610.inc @@ -187,6 +187,12 @@ wstvec = $03F8 WstFlag = $03FA ; Warm start flag +; --------------------------------------------------------------------------- +; Screen size + +XSIZE = 80 +YSIZE = 25 + ; --------------------------------------------------------------------------- ; I/O definitions diff --git a/libsrc/cbm610/cputc.s b/libsrc/cbm610/cputc.s index 64988e4fe..ae8bfb16f 100644 --- a/libsrc/cbm610/cputc.s +++ b/libsrc/cbm610/cputc.s @@ -12,7 +12,6 @@ .import PLOT .import _gotoxy .import popa - .import xsize .include "cbm610.inc" @@ -53,7 +52,7 @@ cputdirect: advance: iny - cpy xsize + cpy #XSIZE bne L3 jsr newline ; new line ldy #0 ; + cr @@ -62,7 +61,7 @@ L3: sty CURS_X newline: clc - lda xsize + lda #XSIZE adc CharPtr sta CharPtr bcc L4 diff --git a/libsrc/conio/scrsize.s b/libsrc/conio/scrsize.s index 0779fb1e5..291f42d4a 100644 --- a/libsrc/conio/scrsize.s +++ b/libsrc/conio/scrsize.s @@ -6,24 +6,29 @@ .export _screensize - .import popax - .import xsize, ysize - .importzp ptr1, ptr2 + .import popsreg + .import screensize + .importzp ptr1, sreg .proc _screensize - sta ptr1 ; Store the y pointer + sta ptr1 ; Store the y pointer stx ptr1+1 + jsr popsreg ; Get the x pointer into sreg + jsr screensize ; Get screensize into X/Y + tya ; Get Y size into A + +.IFP02 + ldy #0 + sta (ptr1),y + txa + sta (sreg),y +.ELSE + sta (ptr1) + txa + sta (sreg) +.ENDIF - jsr popax ; get the x pointer - sta ptr2 - stx ptr2+1 - - ldy #0 - lda xsize - sta (ptr2),y - lda ysize - sta (ptr1),y rts .endproc diff --git a/libsrc/pet/_scrsize.s b/libsrc/pet/_scrsize.s index 09c94182b..ef8b4c56b 100644 --- a/libsrc/pet/_scrsize.s +++ b/libsrc/pet/_scrsize.s @@ -4,27 +4,16 @@ ; Screen size variables ; - - .export xsize, ysize - .constructor initscrsize + .export screensize .include "pet.inc" -.code +.proc screensize -initscrsize: ldx SCR_LINELEN inx ; Variable is one less - stx xsize - lda #25 - sta ysize + ldy #25 rts - -.bss - -xsize: .res 1 -ysize: .res 1 - - +.endproc diff --git a/libsrc/pet/clrscr.s b/libsrc/pet/clrscr.s index 2cabcc084..426a8c5ad 100644 --- a/libsrc/pet/clrscr.s +++ b/libsrc/pet/clrscr.s @@ -7,7 +7,6 @@ .export _clrscr .import plot .importzp ptr1 - .import xsize .include "pet.inc" @@ -23,9 +22,9 @@ _clrscr: ; Determine, how many pages to fill ldx #4 - lda xsize - cmp #40 - beq L1 + lda SCR_LINELEN ; Check length of one line + cmp #40+1 + bcc L1 ldx #8 ; Clear the screen diff --git a/libsrc/pet/cputc.s b/libsrc/pet/cputc.s index eb8430536..c9ac9928e 100644 --- a/libsrc/pet/cputc.s +++ b/libsrc/pet/cputc.s @@ -8,10 +8,8 @@ .export _cputcxy, _cputc, cputdirect, putchar .export newline, plot .import popa, _gotoxy - .import xsize .include "pet.inc" -; .include "../cbm/cbm.inc" _cputcxy: pha ; Save C @@ -48,17 +46,17 @@ cputdirect: ; Advance cursor position advance: - iny - cpy xsize + cpy SCR_LINELEN ; xsize-1 bne L3 jsr newline ; new line - ldy #0 ; + cr -L3: sty CURS_X + ldy #$FF ; + cr +L3: iny + sty CURS_X rts newline: - clc - lda xsize + lda SCR_LINELEN ; xsize-1 + sec ; Account for -1 above adc SCREEN_PTR sta SCREEN_PTR bcc L4 @@ -84,9 +82,9 @@ plot: ldy CURS_Y lda ScrLo,y sta SCREEN_PTR lda ScrHi,y - ldy xsize - cpy #40 - beq @L1 + ldy SCR_LINELEN + cpy #40+1 + bcc @L1 asl SCREEN_PTR ; 80 column mode rol a @L1: ora #$80 ; Screen at $8000 diff --git a/libsrc/plus4/_scrsize.s b/libsrc/plus4/_scrsize.s index 15dd1f778..19f92d7e5 100644 --- a/libsrc/plus4/_scrsize.s +++ b/libsrc/plus4/_scrsize.s @@ -4,11 +4,18 @@ ; Screen size variables ; - .export xsize, ysize + .export screensize -.data +; We will return the values directly instead of banking in the ROM and calling +; SCREEN which is a lot more overhead in code size and CPU cycles. + +.proc screensize + + ldx #40 + ldy #25 + rts + +.endproc -xsize: .byte 40 -ysize: .byte 25 diff --git a/libsrc/plus4/cputc.s b/libsrc/plus4/cputc.s index bbf4c5f12..5788c1cb0 100644 --- a/libsrc/plus4/cputc.s +++ b/libsrc/plus4/cputc.s @@ -8,7 +8,6 @@ .export _cputcxy, _cputc, cputdirect, putchar .export newline, plot .import popa, _gotoxy - .import xsize .import PLOT .include "plus4.inc" @@ -50,7 +49,7 @@ cputdirect: advance: iny - cpy xsize + cpy #XSIZE bne L3 jsr newline ; new line ldy #0 ; + cr @@ -59,13 +58,13 @@ L3: sty CURS_X newline: clc - lda xsize + lda #XSIZE adc SCREEN_PTR sta SCREEN_PTR bcc L4 inc SCREEN_PTR+1 clc -L4: lda xsize +L4: lda #XSIZE adc CRAM_PTR sta CRAM_PTR bcc L5 diff --git a/libsrc/plus4/plus4.inc b/libsrc/plus4/plus4.inc index e4f53a76c..0d51f0aaf 100644 --- a/libsrc/plus4/plus4.inc +++ b/libsrc/plus4/plus4.inc @@ -41,6 +41,12 @@ IRQVec = $0314 BRKVec = $0316 NMIVec = $0318 +; --------------------------------------------------------------------------- +; Screen size + +XSIZE = 40 +YSIZE = 25 + ; --------------------------------------------------------------------------- ; I/O diff --git a/libsrc/vic20/_scrsize.s b/libsrc/vic20/_scrsize.s index c63df59d2..c0a746198 100644 --- a/libsrc/vic20/_scrsize.s +++ b/libsrc/vic20/_scrsize.s @@ -4,22 +4,9 @@ ; Screen size variables ; - .export xsize, ysize + .export screensize .import SCREEN - .constructor initscrsize - -.code - -initscrsize: - jsr SCREEN - stx xsize - sty ysize - rts - -.bss - -xsize: .res 1 -ysize: .res 1 +screensize = SCREEN diff --git a/libsrc/vic20/cputc.s b/libsrc/vic20/cputc.s index cf3c02fdf..2dd6f00c9 100644 --- a/libsrc/vic20/cputc.s +++ b/libsrc/vic20/cputc.s @@ -8,7 +8,6 @@ .export _cputcxy, _cputc, cputdirect, putchar .export newline, plot .import popa, _gotoxy - .import xsize .import PLOT .include "vic20.inc" @@ -50,7 +49,7 @@ cputdirect: advance: iny - cpy xsize + cpy #XSIZE bne L3 jsr newline ; new line ldy #0 ; + cr @@ -59,13 +58,13 @@ L3: sty CURS_X newline: clc - lda xsize + lda #XSIZE adc SCREEN_PTR sta SCREEN_PTR bcc L4 inc SCREEN_PTR+1 clc -L4: lda xsize +L4: lda #XSIZE adc CRAM_PTR sta CRAM_PTR bcc L5 diff --git a/libsrc/vic20/vic20.inc b/libsrc/vic20/vic20.inc index 3297fdbca..95c1f2fec 100644 --- a/libsrc/vic20/vic20.inc +++ b/libsrc/vic20/vic20.inc @@ -28,6 +28,12 @@ CURS_COLOR = $287 ; Color under the cursor PALFLAG = $2A6 ; $01 = PAL, $00 = NTSC +; --------------------------------------------------------------------------- +; Screen size + +XSIZE = 22 +YSIZE = 23 + ; --------------------------------------------------------------------------- ; Kernal routines