mirror of
https://github.com/cc65/cc65.git
synced 2024-06-28 19:29:53 +00:00
Moved additional zeropage variables into an extra module.
Added interrupt vector to joystick driver. New code from Karri. Rewrote joystick initialization to make it somewhat shorter. git-svn-id: svn://svn.cc65.org/cc65/trunk@3281 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz
parent
dc781be7f9
commit
84be744418
|
|
@ -27,19 +27,19 @@ CFLAGS = -Osir -g -T -t $(SYS) --forget-inc-paths -I . -I ../../include
|
|||
%.o: %.s
|
||||
@$(AS) -g -o $@ $(AFLAGS) $<
|
||||
|
||||
%.emd: %.o ../runtime/zeropage.o
|
||||
%.emd: %.o ../runtime/zeropage.o extzp.o
|
||||
@$(LD) -t module -o $@ $^
|
||||
|
||||
%.joy: %.o ../runtime/zeropage.o
|
||||
%.joy: %.o ../runtime/zeropage.o extzp.o
|
||||
@$(LD) -t module -o $@ $^
|
||||
|
||||
%.mou: %.o ../runtime/zeropage.o
|
||||
%.mou: %.o ../runtime/zeropage.o extzp.o
|
||||
@$(LD) -t module -o $@ $^
|
||||
|
||||
%.ser: %.o ../runtime/zeropage.o
|
||||
%.ser: %.o ../runtime/zeropage.o extzp.o
|
||||
@$(LD) -t module -o $@ $^
|
||||
|
||||
%.tgi: %.o ../runtime/zeropage.o
|
||||
%.tgi: %.o ../runtime/zeropage.o extzp.o
|
||||
@$(LD) -t module -o $@ $^
|
||||
|
||||
#--------------------------------------------------------------------------
|
||||
|
|
@ -48,6 +48,7 @@ CFLAGS = -Osir -g -T -t $(SYS) --forget-inc-paths -I . -I ../../include
|
|||
OBJS = crt0.o \
|
||||
ctype.o \
|
||||
eeprom.o \
|
||||
extzp.o \
|
||||
framerate.o \
|
||||
getenv.o \
|
||||
mainargs.o \
|
||||
|
|
|
|||
|
|
@ -19,7 +19,6 @@
|
|||
|
||||
.include "lynx.inc"
|
||||
.export _exit
|
||||
.exportzp __iodat,__iodir,__viddma,__sprsys
|
||||
|
||||
.import initlib, donelib
|
||||
.import zerobss
|
||||
|
|
@ -29,6 +28,7 @@
|
|||
.import __RAM_START__, __RAM_SIZE__
|
||||
|
||||
.include "zeropage.inc"
|
||||
.include "extzp.inc"
|
||||
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
|
|
@ -54,17 +54,6 @@ MikeyInitReg: .byte $00,$01,$08,$09,$20,$28,$30,$38,$44,$50,$8a,$8b,$8c,$92,$9
|
|||
MikeyInitData: .byte $9e,$18,$68,$1f,$00,$00,$00,$00,$00,$ff,$1a,$1b,$04,$0d,$29
|
||||
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; mikey and suzy shadow registers
|
||||
|
||||
.segment "EXTZP" : zeropage
|
||||
|
||||
__iodat: .res 1
|
||||
__iodir: .res 1
|
||||
__viddma: .res 1
|
||||
__sprsys: .res 1
|
||||
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; Actual code
|
||||
|
||||
|
|
|
|||
16
libsrc/lynx/extzp.inc
Normal file
16
libsrc/lynx/extzp.inc
Normal file
|
|
@ -0,0 +1,16 @@
|
|||
;
|
||||
; extzp.inc for the Lynx
|
||||
;
|
||||
; Ullrich von Bassewitz, 2004-11-06
|
||||
;
|
||||
; Assembler include file that imports the runtime zero page locations used
|
||||
; by the Lynx runtime, ready for usage in asm code.
|
||||
;
|
||||
|
||||
|
||||
.global __iodat: zp
|
||||
.global __iodir: zp
|
||||
.global __viddma: zp
|
||||
.global __sprsys: zp
|
||||
|
||||
|
||||
19
libsrc/lynx/extzp.s
Normal file
19
libsrc/lynx/extzp.s
Normal file
|
|
@ -0,0 +1,19 @@
|
|||
;
|
||||
; Ullrich von Bassewitz, 2004-11-06
|
||||
;
|
||||
; zeropage locations for exclusive use by the library
|
||||
;
|
||||
|
||||
.include "extzp.inc"
|
||||
|
||||
.segment "EXTZP" : zeropage
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; mikey and suzy shadow registers
|
||||
|
||||
__iodat: .res 1
|
||||
__iodir: .res 1
|
||||
__viddma: .res 1
|
||||
__sprsys: .res 1
|
||||
|
||||
|
||||
|
|
@ -1,7 +1,15 @@
|
|||
;
|
||||
; Graphics driver for the 160x102x16 mode on the Lynx.
|
||||
;
|
||||
; Based on Stephen L. Judds GRLIB code
|
||||
; All the drawing functions are simply done by sprites as the sprite
|
||||
; engine is the only way to do fast graphics on a Lynx.
|
||||
;
|
||||
; So the code is not really based on any algorithms done by somebody.
|
||||
; I have looked at other routines in the cc65 libs to see what kind of
|
||||
; entry points we need. And I have looked at the old cc65 libs by
|
||||
; Bastian Schick to see how things worked in the past.
|
||||
;
|
||||
; This code is written by Karri Kaksonen, 2004 for the cc65 compiler.
|
||||
;
|
||||
|
||||
.include "zeropage.inc"
|
||||
|
|
@ -11,6 +19,7 @@
|
|||
.include "tgi-error.inc"
|
||||
|
||||
.include "lynx.inc"
|
||||
.include "extzp.inc"
|
||||
|
||||
.macpack generic
|
||||
|
||||
|
|
@ -28,7 +37,7 @@
|
|||
.word 160 ; X resolution
|
||||
.word 102 ; Y resolution
|
||||
.byte 16 ; Number of drawing colors
|
||||
.byte 1 ; Number of screens available
|
||||
.byte 2 ; Number of screens available
|
||||
.byte 8 ; System font X size
|
||||
.byte 8 ; System font Y size
|
||||
.res 4, $00 ; Reserved for future extensions
|
||||
|
|
@ -70,17 +79,11 @@ X1 := ptr1
|
|||
Y1 := ptr2
|
||||
X2 := ptr3
|
||||
Y2 := ptr4
|
||||
RADIUS := tmp1
|
||||
|
||||
ROW := tmp2 ; Bitmap row...
|
||||
COL := tmp3 ; ...and column, both set by PLOT
|
||||
TEMP := tmp4
|
||||
TEMP2 := sreg
|
||||
POINT := regsave
|
||||
INRANGE := regsave+2 ; PLOT variable, $00 = coordinates in range
|
||||
|
||||
CHUNK := X2 ; Used in the line routine
|
||||
OLDCHUNK := X2+1 ; Dito
|
||||
STRPTR := ptr3
|
||||
FONTOFF := ptr4
|
||||
STROFF := tmp3
|
||||
STRLEN := tmp4
|
||||
|
||||
; Absolute variables used in the code
|
||||
|
||||
|
|
@ -91,34 +94,17 @@ ERROR: .res 1 ; Error code
|
|||
DRAWINDEX: .res 1 ; Pen to use for drawing
|
||||
VIEWPAGEL: .res 1
|
||||
VIEWPAGEH: .res 1
|
||||
|
||||
; INIT/DONE
|
||||
OLDD018: .res 1 ; Old register value
|
||||
|
||||
; Line routine stuff
|
||||
DX: .res 2
|
||||
DY: .res 2
|
||||
|
||||
; Circle routine stuff, overlaid by BAR variables
|
||||
X1SAVE:
|
||||
CURX: .res 1
|
||||
CURY: .res 1
|
||||
Y1SAVE:
|
||||
BROW: .res 1 ; Bottom row
|
||||
TROW: .res 1 ; Top row
|
||||
X2SAVE:
|
||||
LCOL: .res 1 ; Left column
|
||||
RCOL: .res 1 ; Right column
|
||||
Y2SAVE:
|
||||
CHUNK1: .res 1
|
||||
OLDCH1: .res 1
|
||||
CHUNK2: .res 1
|
||||
OLDCH2: .res 1
|
||||
DRAWPAGEL: .res 1
|
||||
DRAWPAGEH: .res 1
|
||||
|
||||
; Text output stuff
|
||||
TEXTMAGX: .res 1
|
||||
TEXTMAGY: .res 1
|
||||
TEXTDIR: .res 1
|
||||
BGINDEX: .res 1 ; Pen to use for text background
|
||||
|
||||
text_bitmap: .res 8*(1+20+1)+1
|
||||
; 8 rows with (one offset-byte plus 20 character bytes plus one fill-byte) plus one 0-offset-byte
|
||||
|
||||
; Constants and tables
|
||||
|
||||
|
|
@ -159,13 +145,6 @@ DEFPALETTE: .byte >$000
|
|||
|
||||
PALETTESIZE = * - DEFPALETTE
|
||||
|
||||
BITTAB: .byte $80,$40,$20,$10,$08,$04,$02,$01
|
||||
BITCHUNK: .byte $FF,$7F,$3F,$1F,$0F,$07,$03,$01
|
||||
|
||||
VBASE = $E000 ; Video memory base address
|
||||
CBASE = $D000 ; Color memory base address
|
||||
|
||||
|
||||
.code
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
|
|
@ -177,6 +156,10 @@ CBASE = $D000 ; Color memory base address
|
|||
;
|
||||
|
||||
INSTALL:
|
||||
lda #1
|
||||
sta TEXTMAGX
|
||||
sta TEXTMAGY
|
||||
stz BGINDEX
|
||||
rts
|
||||
|
||||
|
||||
|
|
@ -207,7 +190,6 @@ UNINSTALL:
|
|||
|
||||
INIT:
|
||||
; Done, reset the error code
|
||||
|
||||
lda #TGI_ERR_OK
|
||||
sta ERROR
|
||||
rts
|
||||
|
|
@ -237,9 +219,72 @@ GETERROR:
|
|||
;
|
||||
; Must set an error code: YES
|
||||
;
|
||||
; The TGI lacks a way to draw sprites. As that functionality is vital to
|
||||
; Lynx games we borrow this CONTROL function to implement the still
|
||||
; missing tgi_draw_sprite funtion. To use this in your C-program
|
||||
; do a #define tgi_draw_sprite(spr) tgi_ioctl(0, spr)
|
||||
;
|
||||
; To do a flip-screen call tgi_ioctl(1, 0)
|
||||
;
|
||||
; To set the background index for text outputs call tgi_ioctl(2, bgindex)
|
||||
|
||||
CONTROL:
|
||||
lda #TGI_ERR_INV_FUNC
|
||||
cmp #2
|
||||
bne @L0
|
||||
lda ptr1
|
||||
sta BGINDEX
|
||||
lda #TGI_ERR_OK
|
||||
sta ERROR
|
||||
rts
|
||||
@L0:
|
||||
cmp #1
|
||||
bne @L2
|
||||
lda __sprsys
|
||||
eor #8
|
||||
sta __sprsys
|
||||
sta SPRSYS
|
||||
|
||||
lda __viddma
|
||||
eor #2
|
||||
sta __viddma
|
||||
sta DISPCTL
|
||||
ldy VIEWPAGEL
|
||||
ldx VIEWPAGEH
|
||||
and #2
|
||||
beq @L1
|
||||
clc
|
||||
tya
|
||||
adc #<8159
|
||||
tay
|
||||
txa
|
||||
adc #>8159
|
||||
tax
|
||||
@L1:
|
||||
sty DISPADRL
|
||||
stx DISPADRH
|
||||
lda #TGI_ERR_OK
|
||||
sta ERROR
|
||||
rts
|
||||
@L2:
|
||||
lda ptr1 ; Get the sprite address
|
||||
ldx ptr1+1
|
||||
|
||||
draw_sprite: ; Draw it in render buffer
|
||||
sta SCBNEXTL
|
||||
stx SCBNEXTH
|
||||
lda DRAWPAGEL
|
||||
ldx DRAWPAGEH
|
||||
sta VIDBASL
|
||||
stx VIDBASH
|
||||
lda #1
|
||||
sta SPRGO
|
||||
stz SDONEACK
|
||||
@L3: stz CPUSLEEP
|
||||
lda SPRSYS
|
||||
lsr
|
||||
bcs @L3
|
||||
stz SDONEACK
|
||||
lda #TGI_ERR_OK
|
||||
sta ERROR
|
||||
rts
|
||||
|
||||
|
|
@ -266,18 +311,7 @@ cls_sprite:
|
|||
.code
|
||||
CLEAR: lda #<cls_sprite
|
||||
ldx #>cls_sprite
|
||||
draw_sprite:
|
||||
sta $fc10
|
||||
stx $fc11
|
||||
lda #1
|
||||
sta $fc91
|
||||
stz $fd90
|
||||
@L3: stz CPUSLEEP
|
||||
lda $fc92
|
||||
lsr
|
||||
bcs @L3
|
||||
stz $fd90
|
||||
rts
|
||||
bra draw_sprite
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; SETVIEWPAGE: Set the visible page. Called with the new page in A (0..n).
|
||||
|
|
@ -285,18 +319,36 @@ draw_sprite:
|
|||
;
|
||||
; Must set an error code: NO (will only be called if page ok)
|
||||
;
|
||||
; It is a good idea to call this function during the vertical blanking
|
||||
; period. If you call it in the middle of the screen update then half of
|
||||
; the drawn frame will be from the old buffer and the other half is
|
||||
; from the new buffer. This is usually noticed by the user.
|
||||
|
||||
SETVIEWPAGE:
|
||||
beq @L1
|
||||
lda #<$fe00-8160-8160
|
||||
ldx #>$fe00-8160-8160
|
||||
beq @L1 ; page == maxpages-1
|
||||
ldy #<$de20 ; page 0
|
||||
ldx #>$de20
|
||||
bra @L2
|
||||
@L1: lda #<$fe00-8160
|
||||
ldx #>$fe00-8160
|
||||
@L2: sta DISPADRL ; $FD94
|
||||
sta VIEWPAGEL
|
||||
stx DISPADRH ; $FD95
|
||||
sta VIEWPAGEH
|
||||
@L1:
|
||||
ldy #<$be40 ; page 1
|
||||
ldx #>$be40
|
||||
@L2:
|
||||
sty VIEWPAGEL ; Save viewpage for getpixel
|
||||
stx VIEWPAGEH
|
||||
|
||||
lda __viddma ; Process flipped displays
|
||||
and #2
|
||||
beq @L3
|
||||
clc
|
||||
tya
|
||||
adc #<8159
|
||||
tay
|
||||
txa
|
||||
adc #>8159
|
||||
tax
|
||||
@L3:
|
||||
sty DISPADRL ; $FD94
|
||||
stx DISPADRH ; $FD95
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
|
|
@ -307,14 +359,16 @@ SETVIEWPAGE:
|
|||
;
|
||||
|
||||
SETDRAWPAGE:
|
||||
beq @L1
|
||||
lda #<$fe00-8160-8160
|
||||
ldx #>$fe00-8160-8160
|
||||
beq @L1 ; page == maxpages-1
|
||||
lda #<$de20 ; page 0
|
||||
ldx #>$de20
|
||||
bra @L2
|
||||
@L1: lda #<$fe00-8160
|
||||
ldx #>$fe00-8160
|
||||
@L2: sta VIDBASL ; $FD94
|
||||
stx VIDBASH ; $FD95
|
||||
@L1:
|
||||
lda #<$be40 ; page 1
|
||||
ldx #>$be40
|
||||
@L2:
|
||||
sta DRAWPAGEL
|
||||
stx DRAWPAGEH
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
|
|
@ -383,7 +437,7 @@ GETDEFPALETTE:
|
|||
;
|
||||
; Must set an error code: NO
|
||||
;
|
||||
|
||||
|
||||
.data
|
||||
pixel_sprite:
|
||||
.byte %00000001 ; A pixel sprite
|
||||
|
|
@ -392,10 +446,10 @@ pixel_sprite:
|
|||
.addr 0,pixel_bitmap
|
||||
pix_x: .word 0
|
||||
pix_y: .word 0
|
||||
.word $0100
|
||||
.word $0100
|
||||
.word $100
|
||||
.word $100
|
||||
pix_c: .byte $00
|
||||
|
||||
|
||||
.code
|
||||
SETPIXEL:
|
||||
lda X1
|
||||
|
|
@ -451,19 +505,124 @@ GETPIXEL:
|
|||
; LINE: Draw a line from X1/Y1 to X2/Y2, where X1/Y1 = ptr1/ptr2 and
|
||||
; X2/Y2 = ptr3/ptr4 using the current drawing color.
|
||||
;
|
||||
; To deal with off-screen coordinates, the current row
|
||||
; and column (40x25) is kept track of. These are set
|
||||
; negative when the point is off the screen, and made
|
||||
; positive when the point is within the visible screen.
|
||||
;
|
||||
; X1,X2 etc. are set up above (x2=LINNUM in particular)
|
||||
; Format is LINE x2,y2,x1,y1
|
||||
;
|
||||
; Must set an error code: NO
|
||||
;
|
||||
|
||||
.data
|
||||
|
||||
line_sprite:
|
||||
.byte 0 ; Will be replaced by the code
|
||||
.byte %00110000
|
||||
.byte %00100000
|
||||
.word 0,pixel_bitmap
|
||||
line_x:
|
||||
.word 0
|
||||
line_y:
|
||||
.word 0
|
||||
line_sx:
|
||||
.word $100
|
||||
line_sy:
|
||||
.word $100
|
||||
.word 0
|
||||
line_tilt:
|
||||
.word 0
|
||||
line_c:
|
||||
.byte $e
|
||||
|
||||
LINE:
|
||||
rts
|
||||
lda DRAWINDEX
|
||||
sta line_c
|
||||
stz line_sx
|
||||
stz line_sy
|
||||
|
||||
sec
|
||||
lda X2
|
||||
sbc X1
|
||||
lda X2+1
|
||||
sbc X1+1
|
||||
bpl @L1
|
||||
lda X1
|
||||
ldx X2
|
||||
sta X2
|
||||
stx X1
|
||||
lda X1+1
|
||||
ldx X2+1
|
||||
sta X2+1
|
||||
stx X1+1
|
||||
lda Y1
|
||||
ldx Y2
|
||||
sta Y2
|
||||
stx Y1
|
||||
lda Y1+1
|
||||
ldx Y2+1
|
||||
sta Y2+1
|
||||
stx Y1+1
|
||||
@L1:
|
||||
lda #%00000000 ; Not flipped
|
||||
sta line_sprite
|
||||
|
||||
sec
|
||||
lda Y2
|
||||
sbc Y1
|
||||
sta Y2
|
||||
lda Y2+1
|
||||
sbc Y1+1
|
||||
sta Y2+1
|
||||
bpl @L2
|
||||
sec
|
||||
lda #0
|
||||
sbc Y2
|
||||
sta Y2
|
||||
lda #0
|
||||
sbc Y2+1
|
||||
sta Y2+1
|
||||
lda #%00010000 ; Vertical flip
|
||||
sta line_sprite
|
||||
@L2:
|
||||
lda X1
|
||||
sta line_x
|
||||
lda X1+1
|
||||
sta line_x+1
|
||||
lda Y1
|
||||
sta line_y
|
||||
lda Y1+1
|
||||
sta line_y+1
|
||||
|
||||
lda Y2
|
||||
ina
|
||||
sta line_sy+1
|
||||
sta MATHP ; hardware divide
|
||||
stz MATHN
|
||||
|
||||
stz MATHH
|
||||
stz MATHG
|
||||
sec
|
||||
lda X2
|
||||
sbc X1
|
||||
ina
|
||||
sta MATHF
|
||||
stz MATHE
|
||||
@L3:
|
||||
lda SPRSYS
|
||||
bmi @L3 ; wait for math done (bit 7 of sprsys)
|
||||
lda MATHC
|
||||
sta line_tilt
|
||||
lda MATHB
|
||||
sta line_tilt+1
|
||||
bne @L4
|
||||
lda #1
|
||||
sta line_sx+1
|
||||
bra @L6
|
||||
@L4:
|
||||
bit line_tilt
|
||||
bpl @L5
|
||||
ina
|
||||
@L5:
|
||||
sta line_sx+1
|
||||
@L6:
|
||||
lda #<line_sprite
|
||||
ldx #>line_sprite
|
||||
jmp draw_sprite
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; BAR: Draw a filled rectangle with the corners X1/Y1, X2/Y2, where
|
||||
|
|
@ -501,10 +660,12 @@ BAR: lda X1
|
|||
lda X2
|
||||
sec
|
||||
sbc X1
|
||||
ina
|
||||
sta bar_sx+1
|
||||
lda Y2
|
||||
sec
|
||||
sbc Y1
|
||||
ina
|
||||
sta bar_sy+1
|
||||
lda DRAWINDEX
|
||||
sta bar_c
|
||||
|
|
@ -518,9 +679,58 @@ BAR: lda X1
|
|||
;
|
||||
; Must set an error code: NO
|
||||
;
|
||||
; There is no sensible way of drawing a circle on a Lynx. As I would
|
||||
; have to use line elements to do the circle I rather do it in C than
|
||||
; create it here in the driver.
|
||||
|
||||
; To do a circle please add this to your C program
|
||||
|
||||
;int sintbl[9] = {
|
||||
; 0, // 0 degrees
|
||||
; 3196, // 11.25 degrees
|
||||
; 6270, // 22.5 degrees
|
||||
; 9102, // 33.75 degrees
|
||||
; 11585, // 45 degrees
|
||||
; 13623, // 56.25 degrees
|
||||
; 15137, // 67.5 degrees
|
||||
; 16069, // 78.75 degrees
|
||||
; 16384 // 90 degrees
|
||||
;};
|
||||
|
||||
;int sin(char d)
|
||||
;{
|
||||
; char neg;
|
||||
; d = d & 31;
|
||||
; neg = d > 16;
|
||||
; d = d & 15;
|
||||
; if (d > 8)
|
||||
; d = 16 - d;
|
||||
; if (neg)
|
||||
; return -sintbl[d];
|
||||
; else
|
||||
; return sintbl[d];
|
||||
;}
|
||||
|
||||
;void tgi_Circle(int x0, int y0, unsigned char r)
|
||||
;{
|
||||
; char i;
|
||||
; int x1, y1, x2, y2;
|
||||
;
|
||||
; x1 = ((long)sin(0) * r + 8192) / 16384 + x0;
|
||||
; y1 = ((long)sin(8) * r + 8192) / 16384 + y0;
|
||||
; for (i = 1; i <= 32; i++) {
|
||||
; x2 = ((long)sin(i) * r + 8192) / 16384 + x0;
|
||||
; y2 = ((long)sin(i+8) * r + 8192) / 16384 + y0;
|
||||
; tgi_line(x1, y1, x2, y2);
|
||||
; x1 = x2;
|
||||
; y1 = y2;
|
||||
; }
|
||||
;}
|
||||
|
||||
;#define tgi_circle tgi_Circle
|
||||
|
||||
CIRCLE:
|
||||
rts
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; TEXTSTYLE: Set the style used when calling OUTTEXT. Text scaling in X and Y
|
||||
|
|
@ -535,7 +745,6 @@ TEXTSTYLE:
|
|||
sta TEXTDIR
|
||||
rts
|
||||
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; OUTTEXT: Output text at X/Y = ptr1/ptr2 using the current color and the
|
||||
; current text style. The text to output is given as a zero terminated
|
||||
|
|
@ -545,5 +754,237 @@ TEXTSTYLE:
|
|||
;
|
||||
|
||||
OUTTEXT:
|
||||
rts
|
||||
lda TEXTMAGX ; Scale sprite
|
||||
sta text_sx+1
|
||||
lda TEXTMAGY
|
||||
sta text_sy+1
|
||||
|
||||
stz text_sprite ; Set normal sprite
|
||||
lda BGINDEX
|
||||
bne @L1
|
||||
lda #4
|
||||
sta text_sprite ; Set opaque sprite
|
||||
@L1:
|
||||
lda DRAWINDEX ; Set color
|
||||
asl
|
||||
asl
|
||||
asl
|
||||
asl
|
||||
ora BGINDEX
|
||||
sta text_c
|
||||
|
||||
lda X1 ; Set start position
|
||||
sta text_x
|
||||
lda X1+1
|
||||
sta text_x+1
|
||||
lda Y1
|
||||
sta text_y
|
||||
lda Y1+1
|
||||
sta text_y+1
|
||||
|
||||
ldy #-1 ; Calculate string length
|
||||
@L2:
|
||||
iny
|
||||
lda (STRPTR),y
|
||||
bne @L2
|
||||
cpy #20
|
||||
bmi @L3
|
||||
ldy #20
|
||||
@L3:
|
||||
sty STRLEN
|
||||
bne @L4
|
||||
rts ; Zero length string
|
||||
@L4:
|
||||
iny ; Prepare text_bitmap
|
||||
iny
|
||||
sty STROFF
|
||||
|
||||
ldy #8-1 ; 8 pixel lines per character
|
||||
ldx #0
|
||||
clc
|
||||
@L5:
|
||||
lda STROFF
|
||||
sta text_bitmap,x
|
||||
txa
|
||||
adc STROFF
|
||||
tax
|
||||
lda #$ff
|
||||
sta text_bitmap-1,x
|
||||
dey
|
||||
bpl @L5
|
||||
stz text_bitmap,x
|
||||
|
||||
stz tmp2
|
||||
iny
|
||||
@L6:
|
||||
lda (STRPTR),y
|
||||
sty tmp1
|
||||
|
||||
sec ; (ch-' ') * 8
|
||||
sbc #32
|
||||
stz FONTOFF
|
||||
stz FONTOFF+1
|
||||
asl
|
||||
asl
|
||||
rol FONTOFF+1
|
||||
asl
|
||||
rol FONTOFF+1
|
||||
clc ; Choose font
|
||||
adc #<font
|
||||
sta FONTOFF
|
||||
lda FONTOFF+1
|
||||
adc #>font
|
||||
sta FONTOFF+1
|
||||
|
||||
; and now copy the 8 bytes of that char
|
||||
|
||||
ldx tmp2
|
||||
inx
|
||||
stx tmp2
|
||||
|
||||
; draw char from top to bottom, reading char-data from offset 8-1 to offset 0
|
||||
ldy #8-1
|
||||
@L7:
|
||||
lda (FONTOFF),y ; *chptr
|
||||
sta text_bitmap,x ;textbuf[y*(1+len+1)+1+x]
|
||||
|
||||
txa
|
||||
adc STROFF
|
||||
tax
|
||||
|
||||
dey
|
||||
bpl @L7
|
||||
|
||||
; goto next char
|
||||
ldy tmp1
|
||||
iny
|
||||
dec STRLEN
|
||||
bne @L6
|
||||
|
||||
lda #<text_sprite
|
||||
ldx #>text_sprite
|
||||
jmp draw_sprite
|
||||
|
||||
.data
|
||||
text_sprite:
|
||||
.byte $00,$90,$20
|
||||
.addr 0, text_bitmap
|
||||
text_x:
|
||||
.word 0
|
||||
text_y:
|
||||
.word 0
|
||||
text_sx:
|
||||
.word $100
|
||||
text_sy:
|
||||
.word $100
|
||||
text_c:
|
||||
.byte 0
|
||||
|
||||
.rodata
|
||||
; The Font
|
||||
; 96 characters from ASCII 32 to 127
|
||||
; 8 pixels wide, 8 pixels high
|
||||
; bit value 0 = foreground, bit value 1 = background / transparent
|
||||
font:
|
||||
; VERSAIL
|
||||
.byte $FF, $FF, $FF, $FF, $FF, $FF, $FF, $FF ;32
|
||||
.byte $FF, $E7, $FF, $FF, $E7, $E7, $E7, $E7 ;33
|
||||
.byte $FF, $FF, $FF, $FF, $FF, $99, $99, $99 ;34
|
||||
.byte $FF, $99, $99, $00, $99, $00, $99, $99 ;35
|
||||
.byte $FF, $E7, $83, $F9, $C3, $9F, $C1, $E7 ;36
|
||||
.byte $FF, $B9, $99, $CF, $E7, $F3, $99, $9D ;37
|
||||
.byte $FF, $C0, $99, $98, $C7, $C3, $99, $C3 ;38
|
||||
.byte $FF, $FF, $FF, $FF, $FF, $E7, $F3, $F9 ;39
|
||||
.byte $FF, $F3, $E7, $CF, $CF, $CF, $E7, $F3 ;40
|
||||
.byte $FF, $CF, $E7, $F3, $F3, $F3, $E7, $CF ;41
|
||||
.byte $FF, $FF, $99, $C3, $00, $C3, $99, $FF ;42
|
||||
.byte $FF, $FF, $E7, $E7, $81, $E7, $E7, $FF ;43
|
||||
.byte $CF, $E7, $E7, $FF, $FF, $FF, $FF, $FF ;44
|
||||
.byte $FF, $FF, $FF, $FF, $81, $FF, $FF, $FF ;45
|
||||
.byte $FF, $E7, $E7, $FF, $FF, $FF, $FF, $FF ;46
|
||||
.byte $FF, $9F, $CF, $E7, $F3, $F9, $FC, $FF ;47
|
||||
.byte $FF, $C3, $99, $99, $89, $91, $99, $C3 ;48
|
||||
.byte $FF, $81, $E7, $E7, $E7, $C7, $E7, $E7 ;49
|
||||
.byte $FF, $81, $9F, $CF, $F3, $F9, $99, $C3 ;50
|
||||
.byte $FF, $C3, $99, $F9, $E3, $F9, $99, $C3 ;51
|
||||
.byte $FF, $F9, $F9, $80, $99, $E1, $F1, $F9 ;52
|
||||
.byte $FF, $C3, $99, $F9, $F9, $83, $9F, $81 ;53
|
||||
.byte $FF, $C3, $99, $99, $83, $9F, $99, $C3 ;54
|
||||
.byte $FF, $E7, $E7, $E7, $E7, $F3, $99, $81 ;55
|
||||
.byte $FF, $C3, $99, $99, $C3, $99, $99, $C3 ;56
|
||||
.byte $FF, $C3, $99, $F9, $C1, $99, $99, $C3 ;57
|
||||
.byte $FF, $FF, $E7, $FF, $FF, $E7, $FF, $FF ;58
|
||||
.byte $CF, $E7, $E7, $FF, $FF, $E7, $FF, $FF ;59
|
||||
.byte $FF, $F1, $E7, $CF, $9F, $CF, $E7, $F1 ;60
|
||||
.byte $FF, $FF, $FF, $81, $FF, $81, $FF, $FF ;61
|
||||
.byte $FF, $8F, $E7, $F3, $F9, $F3, $E7, $8F ;62
|
||||
.byte $FF, $E7, $FF, $E7, $F3, $F9, $99, $C3 ;63
|
||||
|
||||
|
||||
.byte $FF, $C3, $9D, $9F, $91, $91, $99, $C3 ;0
|
||||
.byte $FF, $99, $99, $99, $81, $99, $C3, $E7 ;1
|
||||
.byte $FF, $83, $99, $99, $83, $99, $99, $83 ;2
|
||||
.byte $FF, $C3, $99, $9F, $9F, $9F, $99, $C3 ;3
|
||||
.byte $FF, $87, $93, $99, $99, $99, $93, $87 ;4
|
||||
.byte $FF, $81, $9F, $9F, $87, $9F, $9F, $81 ;5
|
||||
.byte $FF, $9F, $9F, $9F, $87, $9F, $9F, $81 ;6
|
||||
.byte $FF, $C3, $99, $99, $91, $9F, $99, $C3 ;7
|
||||
.byte $FF, $99, $99, $99, $81, $99, $99, $99 ;8
|
||||
.byte $FF, $C3, $E7, $E7, $E7, $E7, $E7, $C3 ;9
|
||||
.byte $FF, $C7, $93, $F3, $F3, $F3, $F3, $E1 ;10
|
||||
.byte $FF, $99, $93, $87, $8F, $87, $93, $99 ;11
|
||||
.byte $FF, $81, $9F, $9F, $9F, $9F, $9F, $9F ;12
|
||||
.byte $FF, $9C, $9C, $9C, $94, $80, $88, $9C ;13
|
||||
.byte $FF, $99, $99, $91, $81, $81, $89, $99 ;14
|
||||
.byte $FF, $C3, $99, $99, $99, $99, $99, $C3 ;15
|
||||
.byte $FF, $9F, $9F, $9F, $83, $99, $99, $83 ;16
|
||||
.byte $FF, $F1, $C3, $99, $99, $99, $99, $C3 ;17
|
||||
.byte $FF, $99, $93, $87, $83, $99, $99, $83 ;18
|
||||
.byte $FF, $C3, $99, $F9, $C3, $9F, $99, $C3 ;19
|
||||
.byte $FF, $E7, $E7, $E7, $E7, $E7, $E7, $81 ;20
|
||||
.byte $FF, $C3, $99, $99, $99, $99, $99, $99 ;21
|
||||
.byte $FF, $E7, $C3, $99, $99, $99, $99, $99 ;22
|
||||
.byte $FF, $9C, $88, $80, $94, $9C, $9C, $9C ;23
|
||||
.byte $FF, $99, $99, $C3, $E7, $C3, $99, $99 ;24
|
||||
.byte $FF, $E7, $E7, $E7, $C3, $99, $99, $99 ;25
|
||||
.byte $FF, $81, $9F, $CF, $E7, $F3, $F9, $81 ;26
|
||||
.byte $FF, $C3, $CF, $CF, $CF, $CF, $CF, $C3 ;27
|
||||
.byte $FF, $03, $9D, $CF, $83, $CF, $ED, $F3 ;28
|
||||
.byte $FF, $C3, $F3, $F3, $F3, $F3, $F3, $C3 ;29
|
||||
.byte $E7, $E7, $E7, $E7, $81, $C3, $E7, $FF ;30
|
||||
.byte $FF, $EF, $CF, $80, $80, $CF, $EF, $FF ;31
|
||||
|
||||
|
||||
; gemena
|
||||
.byte $FF, $C3, $9D, $9F, $91, $91, $99, $C3 ;224
|
||||
.byte $FF, $C1, $99, $C1, $F9, $C3, $FF, $FF ;225
|
||||
.byte $FF, $83, $99, $99, $83, $9F, $9F, $FF ;226
|
||||
.byte $FF, $C3, $9F, $9F, $9F, $C3, $FF, $FF ;227
|
||||
.byte $FF, $C1, $99, $99, $C1, $F9, $F9, $FF ;228
|
||||
.byte $FF, $C3, $9F, $81, $99, $C3, $FF, $FF ;229
|
||||
.byte $FF, $E7, $E7, $E7, $C1, $E7, $F1, $FF ;230
|
||||
.byte $83, $F9, $C1, $99, $99, $C1, $FF, $FF ;231
|
||||
.byte $FF, $99, $99, $99, $83, $9F, $9F, $FF ;232
|
||||
.byte $FF, $C3, $E7, $E7, $C7, $FF, $E7, $FF ;233
|
||||
.byte $C3, $F9, $F9, $F9, $F9, $FF, $F9, $FF ;234
|
||||
.byte $FF, $99, $93, $87, $93, $9F, $9F, $FF ;235
|
||||
.byte $FF, $C3, $E7, $E7, $E7, $E7, $C7, $FF ;236
|
||||
.byte $FF, $9C, $94, $80, $80, $99, $FF, $FF ;237
|
||||
.byte $FF, $99, $99, $99, $99, $83, $FF, $FF ;238
|
||||
.byte $FF, $C3, $99, $99, $99, $C3, $FF, $FF ;239
|
||||
.byte $9F, $9F, $83, $99, $99, $83, $FF, $FF ;240
|
||||
.byte $F9, $F9, $C1, $99, $99, $C1, $FF, $FF ;241
|
||||
.byte $FF, $9F, $9F, $9F, $99, $83, $FF, $FF ;242
|
||||
.byte $FF, $83, $F9, $C3, $9F, $C1, $FF, $FF ;243
|
||||
.byte $FF, $F1, $E7, $E7, $E7, $81, $E7, $FF ;244
|
||||
.byte $FF, $C1, $99, $99, $99, $99, $FF, $FF ;245
|
||||
.byte $FF, $E7, $C3, $99, $99, $99, $FF, $FF ;246
|
||||
.byte $FF, $C9, $C1, $80, $94, $9C, $FF, $FF ;247
|
||||
.byte $FF, $99, $C3, $E7, $C3, $99, $FF, $FF ;248
|
||||
.byte $87, $F3, $C1, $99, $99, $99, $FF, $FF ;249
|
||||
.byte $FF, $81, $CF, $E7, $F3, $81, $FF, $FF ;250
|
||||
.byte $FF, $C3, $CF, $CF, $CF, $CF, $CF, $C3 ;251
|
||||
.byte $FF, $03, $9D, $CF, $83, $CF, $ED, $F3 ;252
|
||||
.byte $FF, $C3, $F3, $F3, $F3, $F3, $F3, $C3 ;253
|
||||
.byte $E7, $E7, $E7, $E7, $81, $C3, $E7, $FF ;254
|
||||
.byte $FF, $EF, $CF, $80, $80, $CF, $EF, $FF ;255
|
||||
|
|
|
|||
|
|
@ -12,6 +12,7 @@
|
|||
.include "joy-kernel.inc"
|
||||
.include "joy-error.inc"
|
||||
.include "lynx.inc"
|
||||
.include "extzp.inc"
|
||||
|
||||
.macpack generic
|
||||
|
||||
|
|
@ -28,6 +29,7 @@
|
|||
|
||||
; Button state masks (8 values)
|
||||
|
||||
joy_mask:
|
||||
.byte $80 ; JOY_UP
|
||||
.byte $40 ; JOY_DOWN
|
||||
.byte $20 ; JOY_LEFT
|
||||
|
|
@ -39,10 +41,11 @@
|
|||
|
||||
; Jump table.
|
||||
|
||||
.word INSTALL
|
||||
.word UNINSTALL
|
||||
.word COUNT
|
||||
.word READ
|
||||
.addr INSTALL
|
||||
.addr UNINSTALL
|
||||
.addr COUNT
|
||||
.addr READ
|
||||
.addr 0 ; IRQ entry unused
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; Constants
|
||||
|
|
@ -62,9 +65,37 @@ JOY_COUNT = 1 ; Number of joysticks we support
|
|||
; memory available.
|
||||
; Must return an JOY_ERR_xx code in a/x.
|
||||
;
|
||||
; Here we also flip the joypad in case the display is flipped.
|
||||
; This install routine should be called after you send the flip code
|
||||
; to the display hardware.
|
||||
|
||||
INSTALL:
|
||||
lda #<JOY_ERR_OK
|
||||
lda __viddma ; Process flipped displays
|
||||
and #2
|
||||
beq @L2
|
||||
|
||||
; Set joypad for flipped display
|
||||
|
||||
lda #$10
|
||||
ldx #$00
|
||||
@L1: sta joy_mask,x
|
||||
inx
|
||||
asl a
|
||||
bcc @L1
|
||||
bra @L4
|
||||
|
||||
; Set joypad for normal display
|
||||
|
||||
@L2: lda #$10
|
||||
ldx #$03
|
||||
@L3: sta joy_mask,x
|
||||
dex
|
||||
asl a
|
||||
bcc @L3
|
||||
|
||||
; Done
|
||||
|
||||
@L4: lda #<JOY_ERR_OK
|
||||
ldx #>JOY_ERR_OK
|
||||
; rts ; Run into UNINSTALL instead
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user