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added CX16 VERA registers, made txt.fill_screen work on CX16
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Irmen de Jong
parent
438f3ee8d2
commit
f45eabdd9e
@ -79,6 +79,49 @@ cx16 {
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&uword r14 = $1e
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&uword r15 = $20
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; VERA registers
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const uword VERA_BASE = $9F20
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&uword VERA_ADDR_L = VERA_BASE + $00
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&uword VERA_ADDR_M = VERA_BASE + $01
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&uword VERA_ADDR_H = VERA_BASE + $02
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&uword VERA_DATA0 = VERA_BASE + $03
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&uword VERA_DATA1 = VERA_BASE + $04
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&uword VERA_CTRL = VERA_BASE + $05
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&uword VERA_IEN = VERA_BASE + $06
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&uword VERA_ISR = VERA_BASE + $07
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&uword VERA_IRQ_LINE_L = VERA_BASE + $08
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&uword VERA_DC_VIDEO = VERA_BASE + $09
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&uword VERA_DC_HSCALE = VERA_BASE + $0A
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&uword VERA_DC_VSCALE = VERA_BASE + $0B
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&uword VERA_DC_BORDER = VERA_BASE + $0C
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&uword VERA_DC_HSTART = VERA_BASE + $09
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&uword VERA_DC_HSTOP = VERA_BASE + $0A
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&uword VERA_DC_VSTART = VERA_BASE + $0B
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&uword VERA_DC_VSTOP = VERA_BASE + $0C
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&uword VERA_L0_CONFIG = VERA_BASE + $0D
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&uword VERA_L0_MAPBASE = VERA_BASE + $0E
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&uword VERA_L0_TILEBASE = VERA_BASE + $0F
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&uword VERA_L0_HSCROLL_L = VERA_BASE + $10
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&uword VERA_L0_HSCROLL_H = VERA_BASE + $11
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&uword VERA_L0_VSCROLL_L = VERA_BASE + $12
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&uword VERA_L0_VSCROLL_H = VERA_BASE + $13
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&uword VERA_L1_CONFIG = VERA_BASE + $14
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&uword VERA_L1_MAPBASE = VERA_BASE + $15
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&uword VERA_L1_TILEBASE = VERA_BASE + $16
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&uword VERA_L1_HSCROLL_L = VERA_BASE + $17
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&uword VERA_L1_HSCROLL_H = VERA_BASE + $18
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&uword VERA_L1_VSCROLL_L = VERA_BASE + $19
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&uword VERA_L1_VSCROLL_H = VERA_BASE + $1A
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&uword VERA_AUDIO_CTRL = VERA_BASE + $1B
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&uword VERA_AUDIO_RATE = VERA_BASE + $1C
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&uword VERA_AUDIO_DATA = VERA_BASE + $1D
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&uword VERA_SPI_DATA = VERA_BASE + $1E
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&uword VERA_SPI_CTRL = VERA_BASE + $1F
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; VERA_PSG_BASE = $1F9C0
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; VERA_PALETTE_BASE = $1FA00
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; VERA_SPRITES_BASE = $1FC00
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; supported C128 additions
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romsub $ff4a = close_all()
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@ -119,20 +162,20 @@ romsub $ff3e = GRAPH_get_char_size(ubyte baseline @A, ubyte width @X, ubyte heig
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romsub $ff41 = GRAPH_put_char(ubyte char @A) ; uses x=r0, y=r1
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; framebuffer
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romsub $fef6 = FB_init()
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romsub $fef9 = FB_get_info() -> byte @A ; also outputs width=r0, height=r1
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romsub $fefc = FB_set_palette(ubyte index @A, ubyte bytecount @X) ; also uses pointer=r0
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romsub $feff = FB_cursor_position() ; uses x=r0, y=r1
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romsub $ff02 = FB_cursor_next_line() ; uses x=r0
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romsub $ff05 = FB_get_pixel() -> ubyte @A
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romsub $ff08 = FB_get_pixels() ; uses ptr=r0, count=r1
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romsub $ff0b = FB_set_pixel(ubyte color @A)
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romsub $ff0e = FB_set_pixels() ; uses ptr=r0, count=r1
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romsub $ff11 = FB_set_8_pixels(ubyte pattern @A, ubyte color @X)
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romsub $ff14 = FB_set_8_pixels_opaque(ubyte pattern @A, ubyte color1 @X, ubyte color2 @Y) ; also uses mask=r0L
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romsub $ff17 = FB_fill_pixels(ubyte color @A) ; also uses count=r0, step=r1
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romsub $ff1a = FB_filter_pixels() ; uses ptr=r0, count=r1
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romsub $ff1d = FB_move_pixels() ; uses sx=r0, sy=r1, tx=r2, ty=r3, count=r4
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romsub $fef6 = FB_init()
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romsub $fef9 = FB_get_info() -> byte @A ; also outputs width=r0, height=r1
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romsub $fefc = FB_set_palette(ubyte index @A, ubyte bytecount @X) ; also uses pointer=r0
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romsub $feff = FB_cursor_position() ; uses x=r0, y=r1
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romsub $ff02 = FB_cursor_next_line() ; uses x=r0
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romsub $ff05 = FB_get_pixel() -> ubyte @A
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romsub $ff08 = FB_get_pixels() ; uses ptr=r0, count=r1
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romsub $ff0b = FB_set_pixel(ubyte color @A)
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romsub $ff0e = FB_set_pixels() ; uses ptr=r0, count=r1
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romsub $ff11 = FB_set_8_pixels(ubyte pattern @A, ubyte color @X)
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romsub $ff14 = FB_set_8_pixels_opaque(ubyte pattern @A, ubyte color1 @X, ubyte color2 @Y) ; also uses mask=r0L
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romsub $ff17 = FB_fill_pixels(ubyte color @A) ; also uses count=r0, step=r1
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romsub $ff1a = FB_filter_pixels() ; uses ptr=r0, count=r1
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romsub $ff1d = FB_move_pixels() ; uses sx=r0, sy=r1, tx=r2, ty=r3, count=r4
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; misc
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romsub $fef0 = sprite_set_image(ubyte number @A, ubyte width @X, ubyte height @Y, ubyte apply_mask @Pc) -> ubyte @Pc ; also uses pixels=r0, mask=r1, bpp=r2L
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@ -17,22 +17,40 @@ sub clear_screen() {
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asmsub fill_screen (ubyte char @ A, ubyte txtcolor @ Y) clobbers(A) {
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; ---- clear the character screen with the given fill character and character color.
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; ---- fill the character screen with the given fill character and character color.
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%asm {{
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pha
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tya
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and #$0f
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lda txt.color_to_charcode,y
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jsr c64.CHROUT
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pla
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cmp #' '
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bne +
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lda #147 ; clear screen
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jmp c64.CHROUT
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+ ; TODO fill the screen with a different fillchar (not space) - not yet supported
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sta P8ZP_SCRATCH_W1 ; fillchar
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sty P8ZP_SCRATCH_W1+1 ; textcolor
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phx
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jsr c64.SCREEN ; get dimensions in X/Y
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dex
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dey
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txa
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asl a
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adc #1
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sta P8ZP_SCRATCH_B1
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- ldx P8ZP_SCRATCH_B1
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- stz cx16.VERA_ADDR_H
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stx cx16.VERA_ADDR_L
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sty cx16.VERA_ADDR_M
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lda cx16.VERA_DATA0
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and #$f0
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ora P8ZP_SCRATCH_W1+1
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sta cx16.VERA_DATA0
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dex
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stz cx16.VERA_ADDR_H
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stx cx16.VERA_ADDR_L
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sty cx16.VERA_ADDR_M
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lda P8ZP_SCRATCH_W1
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sta cx16.VERA_DATA0
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dex
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cpx #255
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bne -
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dey
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bpl --
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plx
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rts
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}}
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}}
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}
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