mirror of
https://github.com/cc65/cc65.git
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Merge branch 'master' into test_strtok
This commit is contained in:
Sven Michael Klose
commit
c385e52c12
@ -243,6 +243,12 @@ point to <tt/cx320p1.tgi (cx320p1_tgi)/.
|
||||
a way that's compatible with some of the other color drivers).
|
||||
</descrip><p>
|
||||
|
||||
<descrip>
|
||||
<tag><tt/cx640p1.tgi (cx640p1_tgi)/</tag>
|
||||
This driver features a resolution of 640 across and 480 down with 2 colors,
|
||||
black and white.
|
||||
</descrip><p>
|
||||
|
||||
|
||||
<sect1>Extended memory drivers<p>
|
||||
|
||||
|
||||
675
libsrc/cx16/tgi/cx640p1.s
Normal file
675
libsrc/cx16/tgi/cx640p1.s
Normal file
@ -0,0 +1,675 @@
|
||||
;
|
||||
; Graphics driver for the 640 pixels across, 480 pixels down, 2 color mode
|
||||
; on the Commander X16
|
||||
;
|
||||
; 2024-06-11, Scott Hutter
|
||||
; Based on code by Greg King
|
||||
;
|
||||
|
||||
.include "zeropage.inc"
|
||||
|
||||
.include "tgi-kernel.inc"
|
||||
.include "tgi-error.inc"
|
||||
|
||||
.include "cbm_kernal.inc"
|
||||
.include "cx16.inc"
|
||||
|
||||
.macpack generic
|
||||
.macpack module
|
||||
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; Header. Includes jump table and constants.
|
||||
|
||||
module_header _cx640p1_tgi ; 640 pixels across, 1 pixel per bit
|
||||
|
||||
; First part of the header is a structure that has a signature,
|
||||
; and defines the capabilities of the driver.
|
||||
|
||||
.byte $74, $67, $69 ; ASCII "tgi"
|
||||
.byte TGI_API_VERSION ; TGI API version number
|
||||
.addr $0000 ; Library reference
|
||||
.word 640 ; X resolution
|
||||
.word 480 ; Y resolution
|
||||
.byte 2 ; Number of drawing colors
|
||||
.byte 0 ; Number of screens available
|
||||
.byte 8 ; System font X size
|
||||
.byte 8 ; System font Y size
|
||||
.word $0100 ; Aspect ratio (based on VGA display)
|
||||
.byte 0 ; TGI driver flags
|
||||
|
||||
; Next, comes the jump table. Currently, all entries must be valid,
|
||||
; and may point to an RTS for test versions (function not implemented).
|
||||
|
||||
.addr INSTALL
|
||||
.addr UNINSTALL
|
||||
.addr INIT
|
||||
.addr DONE
|
||||
.addr GETERROR
|
||||
.addr CONTROL
|
||||
.addr CLEAR
|
||||
.addr SETVIEWPAGE
|
||||
.addr SETDRAWPAGE
|
||||
.addr SETCOLOR
|
||||
.addr SETPALETTE
|
||||
.addr GETPALETTE
|
||||
.addr GETDEFPALETTE
|
||||
.addr SETPIXEL
|
||||
.addr GETPIXEL
|
||||
.addr LINE
|
||||
.addr BAR
|
||||
.addr TEXTSTYLE
|
||||
.addr OUTTEXT
|
||||
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; Constant
|
||||
|
||||
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; Data.
|
||||
|
||||
; Variables mapped to the zero page segment variables. Some of these are
|
||||
; used for passing parameters to the driver.
|
||||
|
||||
X1 = ptr1
|
||||
Y1 = ptr2
|
||||
X2 = ptr3
|
||||
Y2 = ptr4
|
||||
|
||||
ADDR = tmp1 ; ADDR+1,2,3
|
||||
|
||||
TEMP = tmp3
|
||||
TEMP2 = tmp4 ; HORLINE
|
||||
TEMP3 = sreg ; HORLINE
|
||||
|
||||
|
||||
; Absolute variables used in the code
|
||||
|
||||
.bss
|
||||
|
||||
; The colors are indicies into a TGI palette. The TGI palette is indicies into
|
||||
; VERA's palette. Vera's palette is a table of Red, Green, and Blue levels.
|
||||
; The first 16 RGB elements mimic the Commodore 64's colors.
|
||||
|
||||
SCRBASE: .res 1 ; High byte of screen base
|
||||
BITMASK: .res 1 ; $00 = clear, $FF = set pixels
|
||||
|
||||
defpalette: .res 2
|
||||
palette: .res 2
|
||||
|
||||
color: .res 1 ; Stroke and fill index
|
||||
text_mode: .res 1 ; Old text mode
|
||||
|
||||
tempX: .res 2
|
||||
tempY: .res 2
|
||||
ERR2: .res 1
|
||||
ERR: .res 1
|
||||
SY: .res 1
|
||||
SX: .res 1
|
||||
DY: .res 1
|
||||
DX: .res 1
|
||||
CURRENT_Y: .res 2
|
||||
CURRENT_X: .res 2
|
||||
|
||||
.data
|
||||
|
||||
ERROR: .byte TGI_ERR_OK ; Error code
|
||||
|
||||
|
||||
; Constants and tables
|
||||
|
||||
.rodata
|
||||
|
||||
veracolors:
|
||||
col_black: .byte %00000000, %00000000
|
||||
col_white: .byte %11111111, %00001111
|
||||
col_red: .byte %00000000, %00001000
|
||||
col_cyan: .byte %11111110, %00001010
|
||||
col_purple: .byte %01001100, %00001100
|
||||
col_green: .byte %11000101, %00000000
|
||||
col_blue: .byte %00001010, %00000000
|
||||
col_yellow: .byte %11100111, %00001110
|
||||
col_orange: .byte %10000101, %00001101
|
||||
col_brown: .byte %01000000, %00000110
|
||||
col_lred: .byte %01110111, %00001111
|
||||
col_gray1: .byte %00110011, %00000011
|
||||
col_gray2: .byte %01110111, %00000111
|
||||
col_lgreen: .byte %11110110, %00001010
|
||||
col_lblue: .byte %10001111, %00000000
|
||||
col_gray3: .byte %10111011, %00001011
|
||||
|
||||
; Bit masks for setting pixels
|
||||
bitMasks1:
|
||||
.byte %10000000, %01000000, %00100000, %00010000
|
||||
.byte %00001000, %00000100, %00000010, %00000001
|
||||
bitMasks2:
|
||||
.byte %01111111, %10111111, %11011111, %11101111
|
||||
.byte %11110111, %11111011, %11111101, %11111110
|
||||
|
||||
|
||||
.code
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; INSTALL routine. Is called after the driver is loaded into memory. May
|
||||
; initialize anything that has to be done just once. Is probably empty
|
||||
; most of the time.
|
||||
;
|
||||
; Must set an error code: NO
|
||||
|
||||
INSTALL:
|
||||
; Create the default palette.
|
||||
lda #$00
|
||||
sta defpalette
|
||||
lda #$01
|
||||
sta defpalette+1
|
||||
|
||||
; Fall through.
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; UNINSTALL routine. Is called before the driver is removed from memory. May
|
||||
; clean up anything done by INSTALL, but is probably empty most of the time.
|
||||
;
|
||||
; Must set an error code: NO
|
||||
|
||||
UNINSTALL:
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; INIT: Changes an already installed device from text mode to graphics
|
||||
; mode.
|
||||
; Note that INIT/DONE may be called multiple times while the driver
|
||||
; is loaded, while INSTALL is called only once; so, any code that is needed
|
||||
; to initiate variables and so on must go here. Setting the palette is not
|
||||
; needed because that is called by the graphics kernel later.
|
||||
; The graphics kernel never will call INIT when a graphics mode already is
|
||||
; active, so there is no need to protect against that.
|
||||
;
|
||||
; Must set an error code: YES
|
||||
|
||||
INIT: stz ERROR ; #TGI_ERR_OK
|
||||
|
||||
; Save the current text mode.
|
||||
|
||||
sec
|
||||
jsr SCREEN_MODE
|
||||
sta text_mode
|
||||
|
||||
; Switch into (640 x 480 x 2 bpp) graphics mode.
|
||||
|
||||
lda #%00000000 ; DCSEL = 0, VRAM port 1
|
||||
sta VERA::CTRL
|
||||
lda #%00100001 ; Disable sprites, layer 1 enable, VGA
|
||||
sta VERA::DISP::VIDEO
|
||||
lda #%00000100 ; Bitmap mode enable
|
||||
sta VERA::L1::CONFIG
|
||||
lda #%00000001 ; Tile width 640
|
||||
sta VERA::L1::TILE_BASE
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; DONE: Will be called to switch the graphics device back into text mode.
|
||||
; The graphics kernel never will call DONE when no graphics mode is active,
|
||||
; so there is no need to protect against that.
|
||||
;
|
||||
; Must set an error code: NO
|
||||
|
||||
DONE:
|
||||
jsr CINT
|
||||
lda text_mode
|
||||
clc
|
||||
jmp SCREEN_MODE
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; GETERROR: Return the error code in .A, and clear it.
|
||||
|
||||
GETERROR:
|
||||
lda ERROR
|
||||
stz ERROR
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; CONTROL: Platform-/driver-specific entry point.
|
||||
;
|
||||
; Must set an error code: YES
|
||||
|
||||
CONTROL:
|
||||
lda #TGI_ERR_INV_FUNC
|
||||
sta ERROR
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; CLEAR: Clear the screen.
|
||||
;
|
||||
; Must set an error code: NO
|
||||
|
||||
CLEAR:
|
||||
.scope inner
|
||||
|
||||
; set up DCSEL=2
|
||||
lda #(2 << 1)
|
||||
sta VERA::CTRL
|
||||
|
||||
; set cache writes
|
||||
lda #$40
|
||||
tsb VERA::DISP::VIDEO ; VERA_FX_CTRL when DCSEL=2
|
||||
|
||||
; set FX cache to all zeroes
|
||||
lda #(6 << 1)
|
||||
sta VERA::CTRL
|
||||
|
||||
lda #$00
|
||||
sta VERA::DISP::VIDEO
|
||||
sta VERA::DISP::HSCALE
|
||||
sta VERA::DISP::VSCALE
|
||||
sta VERA::DISP::FRAME
|
||||
|
||||
stz VERA::CTRL
|
||||
; set address and increment for bitmap area
|
||||
stz VERA::ADDR
|
||||
stz VERA::ADDR + 1
|
||||
lda #$30 ; increment +4
|
||||
sta VERA::ADDR + 2
|
||||
|
||||
ldy #$F0
|
||||
@blank_outer:
|
||||
ldx #$0A
|
||||
@blank_loop:
|
||||
|
||||
.repeat 8
|
||||
stz VERA::DATA0
|
||||
.endrep
|
||||
|
||||
dex
|
||||
bne @blank_loop
|
||||
dey
|
||||
bne @blank_outer
|
||||
|
||||
; set up DCSEL=2
|
||||
lda #(2 << 1)
|
||||
sta VERA::CTRL
|
||||
|
||||
; set FX off (cache write bit 1 -> 0)
|
||||
stz VERA::DISP::VIDEO ; VERA_FX_CTRL when DCSEL=2
|
||||
stz VERA::CTRL
|
||||
|
||||
.endscope
|
||||
rts
|
||||
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; SETVIEWPAGE: Set the visible page. Called with the new page in .A (0..n-1).
|
||||
; The page number already is checked to be valid by the graphics kernel.
|
||||
;
|
||||
; Must set an error code: NO (will be called only if page OK)
|
||||
|
||||
SETVIEWPAGE:
|
||||
|
||||
; Fall through.
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; SETDRAWPAGE: Set the drawable page. Called with the new page in .A (0..n-1).
|
||||
; The page number already is checked to be valid by the graphics kernel.
|
||||
;
|
||||
; Must set an error code: NO (will be called only if page OK)
|
||||
|
||||
SETDRAWPAGE:
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; SETPALETTE: Set the palette (not available with all drivers/hardware).
|
||||
; A pointer to the palette is passed in ptr1. Must set an error if palettes
|
||||
; are not supported
|
||||
;
|
||||
; Must set an error code: YES
|
||||
|
||||
SETPALETTE:
|
||||
stz ERROR ; #TGI_ERR_OK
|
||||
ldy #$01 ; Palette size of 2 colors
|
||||
@L1: lda (ptr1),y ; Copy the palette
|
||||
sta palette,y
|
||||
dey
|
||||
bpl @L1
|
||||
|
||||
; set background color from palette color 0
|
||||
lda #$00
|
||||
sta VERA::ADDR
|
||||
lda #$FA
|
||||
sta VERA::ADDR+1
|
||||
lda #$01
|
||||
sta VERA::ADDR+2 ; write color RAM @ $1FA00
|
||||
|
||||
lda palette
|
||||
asl
|
||||
tay
|
||||
lda veracolors,y
|
||||
sta VERA::DATA0
|
||||
|
||||
inc VERA::ADDR ; $1FA01
|
||||
|
||||
lda palette
|
||||
asl
|
||||
tay
|
||||
iny ; second byte of color
|
||||
lda veracolors,y
|
||||
sta VERA::DATA0
|
||||
|
||||
; set foreground color from palette color 1
|
||||
inc VERA::ADDR ; $1FA02
|
||||
|
||||
lda palette+1
|
||||
asl
|
||||
tay
|
||||
lda veracolors,y
|
||||
sta VERA::DATA0
|
||||
|
||||
inc VERA::ADDR ; $1FA03
|
||||
|
||||
lda palette+1
|
||||
asl
|
||||
tay
|
||||
iny ; second byte of color
|
||||
lda veracolors,y
|
||||
sta VERA::DATA0
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; SETCOLOR: Set the drawing color (in .A). The new color already is checked
|
||||
; to be in a valid range (0..maxcolor).
|
||||
;
|
||||
; Must set an error code: NO (will be called only if color OK)
|
||||
|
||||
SETCOLOR:
|
||||
tax
|
||||
beq @L1
|
||||
lda #$FF
|
||||
@L1: sta BITMASK
|
||||
stx color
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; GETPALETTE: Return the current palette in .XA. Even drivers that cannot
|
||||
; set the palette should return the default palette here, so there's no
|
||||
; way for this function to fail.
|
||||
;
|
||||
; Must set an error code: NO
|
||||
|
||||
GETPALETTE:
|
||||
lda #<palette
|
||||
ldx #>palette
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; GETDEFPALETTE: Return the default palette for the driver in .XA. All
|
||||
; drivers should return something reasonable here, even drivers that don't
|
||||
; support palettes, otherwise the caller has no way to determine the colors
|
||||
; of the (not changable) palette.
|
||||
;
|
||||
; Must set an error code: NO (all drivers must have a default palette)
|
||||
|
||||
GETDEFPALETTE:
|
||||
lda #<defpalette
|
||||
ldx #>defpalette
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; SETPIXEL: Draw one pixel at X1/Y1 = ptr1/ptr2 with the current drawing
|
||||
; color. The co-ordinates passed to this function never are outside the
|
||||
; visible screen area, so there is no need for clipping inside this function.
|
||||
;
|
||||
; Must set an error code: NO
|
||||
|
||||
SETPIXEL:
|
||||
jsr CALC
|
||||
|
||||
stx TEMP
|
||||
|
||||
lda ADDR
|
||||
ldy ADDR+1
|
||||
ldx #$00
|
||||
|
||||
sta VERA::ADDR
|
||||
sty VERA::ADDR + 1
|
||||
stx VERA::ADDR + 2
|
||||
|
||||
ldx TEMP
|
||||
|
||||
lda BITMASK
|
||||
beq @ahead
|
||||
|
||||
; if BITMASK = $00, white is line color
|
||||
; Set the bit in the byte at VERA_DATA0
|
||||
lda VERA::DATA0 ; Load the byte at memory address
|
||||
ora bitMasks1,X ; OR with the bit mask
|
||||
sta VERA::DATA0 ; Store back the modified byte
|
||||
rts
|
||||
|
||||
@ahead:
|
||||
; if BITMASK = $FF, black is line color
|
||||
lda VERA::DATA0 ; Load the byte at memory address
|
||||
and bitMasks2,X ; OR with the bit mask
|
||||
sta VERA::DATA0 ; Store back the modified byte
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; GETPIXEL: Read the color value of a pixel, and return it in .XA. The
|
||||
; co-ordinates passed to this function never are outside the visible screen
|
||||
; area, so there is no need for clipping inside this function.
|
||||
|
||||
GETPIXEL:
|
||||
jsr CALC
|
||||
|
||||
stx TEMP
|
||||
|
||||
lda ADDR
|
||||
ldy ADDR+1
|
||||
ldx #$00
|
||||
|
||||
sta VERA::ADDR
|
||||
sty VERA::ADDR + 1
|
||||
stx VERA::ADDR + 2
|
||||
|
||||
ldx TEMP
|
||||
lda VERA::DATA0 ; Load the byte at memory address
|
||||
and bitMasks1,X
|
||||
|
||||
bne @ahead
|
||||
|
||||
ldx #$00
|
||||
lda #$00
|
||||
rts
|
||||
|
||||
@ahead:
|
||||
ldx #$00
|
||||
lda #$01
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; BAR: Draw a filled rectangle with the corners X1/Y1, X2/Y2, where
|
||||
; X1/Y1 = ptr1/ptr2 and X2/Y2 = ptr3/ptr4, using the current drawing color.
|
||||
; Contrary to most other functions, the graphics kernel will sort and clip
|
||||
; the co-ordinates before calling the driver; so on entry, the following
|
||||
; conditions are valid:
|
||||
; X1 <= X2
|
||||
; Y1 <= Y2
|
||||
; (X1 >= 0) && (X1 < XRES)
|
||||
; (X2 >= 0) && (X2 < XRES)
|
||||
; (Y1 >= 0) && (Y1 < YRES)
|
||||
; (Y2 >= 0) && (Y2 < YRES)
|
||||
;
|
||||
; Must set an error code: NO
|
||||
|
||||
BAR:
|
||||
; Initialize tempY with Y1
|
||||
lda Y1
|
||||
sta tempY
|
||||
lda Y1+1
|
||||
sta tempY+1
|
||||
|
||||
@outer_loop:
|
||||
; Compare tempY with Y2
|
||||
lda tempY+1
|
||||
cmp Y2+1
|
||||
bcc @outer_continue ; If tempY high byte < Y2 high byte, continue
|
||||
bne @outer_end ; If tempY high byte > Y2 high byte, end
|
||||
lda tempY
|
||||
cmp Y2
|
||||
bcc @outer_continue ; If tempY low byte < Y2 low byte, continue
|
||||
beq @outer_end ; If tempY low byte = Y2 low byte, end
|
||||
|
||||
@outer_continue:
|
||||
; Initialize tempX with X1
|
||||
lda X1
|
||||
sta tempX
|
||||
lda X1+1
|
||||
sta tempX+1
|
||||
|
||||
@inner_loop:
|
||||
; Compare tempX with X2
|
||||
lda tempX+1
|
||||
cmp X2+1
|
||||
bcc @inner_continue ; If tempX high byte < X2 high byte, continue
|
||||
bne @inner_end ; If tempX high byte > X2 high byte, end
|
||||
lda tempX
|
||||
cmp X2
|
||||
bcc @inner_continue ; If tempX low byte < X2 low byte, continue
|
||||
|
||||
@inner_end:
|
||||
; Increment tempY
|
||||
inc tempY
|
||||
bne @outer_loop ; If no overflow, continue outer loop
|
||||
inc tempY+1 ; If overflow, increment high byte
|
||||
|
||||
@inner_continue:
|
||||
; Call setpixel(tempX, tempY)
|
||||
lda X1
|
||||
pha
|
||||
lda X1+1
|
||||
pha
|
||||
lda Y1
|
||||
pha
|
||||
lda Y1+1
|
||||
pha
|
||||
|
||||
lda tempX
|
||||
ldx tempX+1
|
||||
sta X1
|
||||
stx X1+1
|
||||
|
||||
lda tempY
|
||||
ldx tempY+1
|
||||
sta Y1
|
||||
stx Y1+1
|
||||
|
||||
jsr SETPIXEL
|
||||
|
||||
pla
|
||||
sta Y1+1
|
||||
pla
|
||||
sta Y1
|
||||
pla
|
||||
sta X1+1
|
||||
pla
|
||||
sta X1
|
||||
|
||||
; Increment tempX
|
||||
inc tempX
|
||||
bne @inner_loop_check ; If no overflow, continue
|
||||
inc tempX+1 ; If overflow, increment high byte
|
||||
|
||||
@inner_loop_check:
|
||||
; Compare tempX with X2 again after increment
|
||||
lda tempX+1
|
||||
cmp X2+1
|
||||
bcc @inner_continue ; If tempX high byte < X2 high byte, continue
|
||||
bne @outer_increment ; If tempX high byte > X2 high byte, increment tempY
|
||||
lda tempX
|
||||
cmp X2
|
||||
bcc @inner_continue ; If tempX low byte < X2 low byte, continue
|
||||
|
||||
@outer_increment:
|
||||
; Increment tempY
|
||||
inc tempY
|
||||
bne @outer_loop ; If no overflow, continue outer loop
|
||||
inc tempY+1 ; If overflow, increment high byte
|
||||
|
||||
@outer_end:
|
||||
jmp @done
|
||||
|
||||
@done:
|
||||
rts
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; TEXTSTYLE: Set the style used when calling OUTTEXT. Text scaling in X and Y
|
||||
; directions are passed in .X and .Y, the text direction is passed in .A.
|
||||
;
|
||||
; Must set an error code: NO
|
||||
|
||||
TEXTSTYLE:
|
||||
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
|
||||
; string with address in ptr3.
|
||||
;
|
||||
; Must set an error code: NO
|
||||
|
||||
OUTTEXT:
|
||||
rts
|
||||
|
||||
|
||||
; ------------------------------------------------------------------------
|
||||
; Calculate all variables to plot the pixel at X1/Y1.
|
||||
;------------------------
|
||||
;< X1,Y1 - pixel
|
||||
;> ADDR - address of card
|
||||
;> X - bit number (X1 & 7)
|
||||
CALC:
|
||||
lda Y1+1
|
||||
sta ADDR+1
|
||||
lda Y1
|
||||
asl
|
||||
rol ADDR+1
|
||||
asl
|
||||
rol ADDR+1 ; Y*4
|
||||
clc
|
||||
adc Y1
|
||||
sta ADDR
|
||||
lda Y1+1
|
||||
adc ADDR+1
|
||||
sta ADDR+1 ; Y*4+Y=Y*5
|
||||
lda ADDR
|
||||
asl
|
||||
rol ADDR+1
|
||||
asl
|
||||
rol ADDR+1
|
||||
asl
|
||||
rol ADDR+1
|
||||
asl
|
||||
rol ADDR+1
|
||||
sta ADDR ; Y*5*16=Y*80
|
||||
lda X1+1
|
||||
sta TEMP
|
||||
lda X1
|
||||
lsr TEMP
|
||||
ror
|
||||
lsr TEMP
|
||||
ror
|
||||
lsr TEMP
|
||||
ror
|
||||
clc
|
||||
adc ADDR
|
||||
sta ADDR
|
||||
lda ADDR+1 ; ADDR = Y*80+x/8
|
||||
adc TEMP
|
||||
sta ADDR+1
|
||||
lda ADDR+1
|
||||
lda X1
|
||||
and #7
|
||||
tax
|
||||
rts
|
||||
|
||||
|
||||
.include "../../tgi/tgidrv_line.inc"
|
||||
@ -50,7 +50,7 @@ ISEQUAL = ..$S..$Stestwrk$Sisequal$(EXE)
|
||||
# will have to change that, and create said special cases here.
|
||||
# see discussion in https://github.com/cc65/cc65/issues/2277
|
||||
CC = gcc
|
||||
CFLAGS = -std=gnu17 -O2 -Wall -W -Wextra -funsigned-char -fwrapv -fno-strict-overflow
|
||||
CFLAGS = -std=gnu17 -O2 -Wall -W -Wextra -funsigned-char -fwrapv -fno-strict-overflow -Wno-error=implicit-int -Wno-error=int-conversion
|
||||
|
||||
.PHONY: all clean
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user