demos: o: merge in the hires stuff
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Vince Weaver
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@ -11,6 +11,15 @@ GBASH = $27
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A5H = $45
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XREG = $46
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YREG = $47
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PHASE = $6C
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FRAME = $6D
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PAGE = $6E
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LINE = $6F
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OUTL = $74
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OUTH = $75
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COUNT = $76
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; C0-CF should be clear
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; D0-DF?? D0-D5 = HGR scratch?
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HGR_DX = $D0 ; HGLIN
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@ -31,27 +40,6 @@ HGR_SHAPE_TABLE2= $E9
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HGR_COLLISIONS = $EA
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;HGR2 = $F3D8
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PLOT = $F800 ; PLOT AT Y,A (A colors output, Y preserved)
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GBASCALC = $F847 ; Y in A, put addr in GBASL/GBASH
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SETGR = $FB40
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;WAIT = $FCA8 ; delay 1/2(26+27A+5A^2) us
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;GBASL = $26
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;GBASH = $27
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OUTL = $74
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OUTH = $75
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FRAME = $6D
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PAGE = $6E
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LINE = $6F
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OUR_ROT = $E0
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; soft-switch
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SPEAKER = $C030
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SET_GR = $C050
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@ -68,99 +56,83 @@ HCLR = $F3F2 ; A=0, Y=0 after, X unchanged
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HPOSN = $F411
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XDRAW0 = $F65D
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XDRAW1 = $F661
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PLOT = $F800 ; PLOT AT Y,A (A colors output, Y preserved)
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GBASCALC = $F847 ; Y in A, put addr in GBASL/GBASH
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SETGR = $FB40
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WAIT = $FCA8 ; delay 1/2(26+27A+5A^2) us
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RESTORE = $FF3F
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pattern1 = $d000 ; location in memory
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pattern1 = $d000 ; location in memory to use as
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; background pixel pattern
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dsr_intro:
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;========================================
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;========================================
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; actual start
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;========================================
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;========================================
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jsr HGR2 ; Hi-res, full screen ; 3
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dsr_scroll_intro:
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jsr HGR2 ; Hi-res, full screen
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; Y=0, A=0 after this call
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ldy #8
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sty HGR_SCALE ; 2 init scale to 0
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sta PAGE ; needed?
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sta PHASE
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sta FRAME
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sta OUTL
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lda #8
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sta HGR_SCALE ; init scale to 8
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;=========================================
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; MAIN LOOP
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; hi-res loop
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;=========================================
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;main_loop:
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; inc HGR_SCALE ; 2 ; increment scale
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hires_setup:
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; inc rot_smc+1 ; 2 ; rotate
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; inc rot_smc+1 ; 2
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jsr xdraw ; non-rotate, HGR2
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;=======================
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; xdraw
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;=======================
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xdraw:
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; setup X and Y co-ords
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ldy #0 ; XPOSH always 0 for us
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ldx #140
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lda #96
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jsr HPOSN ; X= (y,x) Y=(a)
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; after, A=COLOR.BITS
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; Y = xoffset (140/7=20?)
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; X = remainder?
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jsr HCLR ; A=0 and Y=0 after, X=unchanged
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ldx #<shape_dsr ; point to our shape
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ldy #>shape_dsr ; this is always zero since in zero page
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rot_smc:
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lda #$0 ; set rotation
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jsr XDRAW0 ; XDRAW 1 AT X,Y
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flip_page:
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; flip draw page $20/$40
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lda HGR_PAGE
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eor #$60
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sta HGR_PAGE
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; flip page
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; have $20/$40 want to map to C054/C055
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lda #2
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sta rot_smc+1
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jsr xdraw
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asl
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asl ; $20 -> C=1 $00
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asl ; $40 -> C=0 $00
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rol
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tax
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sta PAGE1,X
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;hires_loop:
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; lda #200
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; jsr WAIT
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lda #200
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jsr WAIT
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; jsr flip_page
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;blah:
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; jmp blah
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; dec COUNT
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; bne hires_loop
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lo_res_scroll:
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; bit LORES ; set LORES
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; lda #0 ; set OUTL to 0, also PAGE
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; sta OUTL
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random:
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bit LORES
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; jsr SETGR ; set LORES ; 70 71 72
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lda #0 ; also OUTL=0/OUTH ; 73 74
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sta OUTL
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; bit FULLGR ; set FULL 48x40 ; 75 76 77
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;===============================
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;===============================
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; main loop
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;===============================
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;===============================
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main_loop:
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sta PAGE ; start at page 1
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; current page is in A at this point
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sta PAGE
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asl ; make OUTH $4 or $8 depending on value in PAGE
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; which we have in A above or at end of loop
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@ -171,7 +143,7 @@ main_loop:
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; bit SPEAKER
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lda #100
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lda #200
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jsr WAIT
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inc FRAME
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@ -303,6 +275,8 @@ its_black:
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; switch page
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flip_page:
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lda PAGE
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tax
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@ -313,6 +287,32 @@ its_black:
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bpl main_loop ; bra
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;=======================
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; xdraw
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;=======================
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xdraw:
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; setup X and Y co-ords
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ldy #0 ; XPOSH always 0 for us
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ldx #140
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lda #80 ; 96 would be halfway?
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jsr HPOSN ; X= (y,x) Y=(a)
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; after, A=COLOR.BITS
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; Y = xoffset (140/7=20?)
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; X = remainder?
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jsr HCLR ; A=0 and Y=0 after, X=unchanged
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ldx #<shape_dsr ; point to our shape
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ldy #>shape_dsr ; this is always zero since in zero page
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rot_smc:
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lda #$0 ; set rotation
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jmp XDRAW0 ; XDRAW 1 AT X,Y
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; updated desire logo thanks to
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;012|456|012|456|
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