demos: d2
This commit is contained in:
Vince Weaver
parent
29951578fd
commit
c75dffc7ed
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@ -29,6 +29,7 @@ D2: d2.o
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ld65 -o D2 d2.o -C $(LINKER_SCRIPTS)/apple2_6000.inc
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d2.o: d2.s \
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moving.s wires.s \
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zp.inc hardware.inc \
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peasant_music.s \
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interrupt_handler.s mockingboard_setup.s
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@ -45,5 +46,5 @@ text_to_tiny.o: text_to_tiny.c
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####
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clean:
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rm -f *~ *.o *.lst YANKEE PEASANT HELLO text_to_tiny peasant_music.s
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rm -f *~ *.o *.lst D2 HELLO text_to_tiny peasant_music.s
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@ -1,14 +1,4 @@
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; Tiny Mockingboard Player
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; 514B -- Initial implementation
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; 423B -- inline everything
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; 400B -- put register init at end of song
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; 381B -- generate the frequency table
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; proposed format
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; CCOONNNN -- c=channel, o=octave, n=note
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; 11LLLLLL -- L=length
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; 11LLLLLL -- wait time
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; Demo2
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; by deater (Vince Weaver) <vince@deater.net>
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@ -17,15 +7,10 @@
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.include "hardware.inc"
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;==========================================
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tiny_music:
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d2:
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;===================
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;
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;===================
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; Player Setup
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; music Player Setup
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lda #<peasant_song
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@ -39,11 +24,69 @@ tiny_music:
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start_interrupts:
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cli
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forever:
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jmp moving
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;================================
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; Clear screen and setup graphics
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;================================
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jsr HGR2 ; set hi-res 140x192, page2, fullscreen
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; A and Y both 0 at end
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sty FRAME ; start at 1 for wires purposes
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;==================
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; create sinetable
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;ldy #0 ; Y is 0
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sinetable_loop:
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tya ; 2
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and #$3f ; wrap sine at 63 entries ; 2
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cmp #$20
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php ; save pos/negative for later
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and #$1f
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cmp #$10
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bcc sin_left ; blt
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sin_right:
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; sec carry should be set here
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eor #$FF
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adc #$20 ; 32-X
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sin_left:
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tax
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lda sinetable_base,X ; 4+
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plp
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bcc sin_done
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sin_negate:
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; carry set here
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eor #$ff
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; adc #0 ; FIXME: this makes things off by 1
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sin_done:
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sta sinetable,Y
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iny
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bne sinetable_loop
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; NOTE: making gbash/gbasl table wasn't worth it
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forever:
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jsr oval
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jsr moving
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jsr wires
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jmp forever
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.include "moving.s"
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.include "wires.s"
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.include "oval.s"
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; music
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.include "peasant_music.s"
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@ -51,3 +94,11 @@ forever:
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; must be last
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.include "mockingboard_setup.s"
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; Moving
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; moving, orange and green
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@ -6,54 +6,11 @@
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;================================
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moving:
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jsr HGR2 ; set hi-res 140x192, page2, fullscreen
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; A and Y both 0 at end
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;==================
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; create sinetable
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;ldy #0 ; Y is 0
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sinetable_loop:
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tya ; 2
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and #$3f ; wrap sine at 63 entries ; 2
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cmp #$20
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php ; save pos/negative for later
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and #$1f
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cmp #$10
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bcc sin_left ; blt
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sin_right:
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; sec carry should be set here
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eor #$FF
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adc #$20 ; 32-X
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sin_left:
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tax
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lda sinetable_base,X ; 4+
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plp
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bcc sin_done
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sin_negate:
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; carry set here
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eor #$ff
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; adc #0 ; FIXME: this makes things off by 1
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sin_done:
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sta sinetable,Y
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iny
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bne sinetable_loop
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; NOTE: making gbash/gbasl table wasn't worth it
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;============================
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; main loop
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;============================
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draw_oval:
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draw_moving:
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inc FRAME
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lda #191 ; YY
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@ -137,8 +94,11 @@ done_page:
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eor #$60 ; flip draw page between $2000/$4000
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sta HGR_PAGE
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bne draw_oval ; bra
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lda FRAME
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cmp #$1f
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bne draw_moving ; bra
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rts
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colorlookup:
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.byte $22,$aa,$ba,$ff,$ba,$aa,$22 ; use 00 from sinetable
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@ -158,7 +118,7 @@ sinetable_base:
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; for bot
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; 3F5 - 7d = 378
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; jmp oval
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; jmp moving
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sinetable=$8000
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@ -0,0 +1,182 @@
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; Ovals
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; zero page
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;GBASL = $26
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;GBASH = $27
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;YY = $69
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;ROW_SUM = $70
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;HGR_X = $E0
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;HGR_XH = $E1
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;HGR_Y = $E2
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;HGR_COLOR = $E4
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;HGR_PAGE = $E6
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;FRAME = $FC
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;SUM = $FD
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;SAVEX = $FE
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;SAVEY = $FF
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; soft-switches
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;FULLGR = $C052
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;PAGE1 = $C054
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; ROM routines
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;HGR2 = $F3D8
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;HPOSN = $F411 ; (Y,X),(A) (values stores in HGRX,XH,Y)
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;================================
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; Clear screen and setup graphics
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;================================
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oval:
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; jsr HGR2 ; set hi-res 140x192, page2, fullscreen
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;====================
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; create sinetable
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; ldy #0
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;sinetable_loop:
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; tya ; 2
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; and #$3f ; wrap sine at 63 entries ; 2
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; cmp #$20
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; php ; save pos/negative for later
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;
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; and #$1f
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; cmp #$10
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; bcc sin_left
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;sin_right:
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; sec carry should be set?
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; eor #$FF
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; adc #$20 ; 32-X
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;sin_left:
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; tax
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; lda sinetable_base,X ; 4+
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; plp
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; bcc sin_done
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;sin_negate:
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; carry set here
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; eor #$ff
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; adc #0
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;sin_done:
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; sta sinetable,Y
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; iny
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; bne sinetable_loop
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; NOTE: making gbash/gbasl table wasn't worth it
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;============================
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; main loop
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;============================
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draw_oval:
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inc FRAME
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lda #191 ; YY
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oval_yloop:
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; HGR_Y (YY) is in A here
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; ldx #39 ; X is don't care?
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ldy #0
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jsr HPOSN ; (Y,X),(A) (values stores in HGRX,XH,Y)
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; restore values
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lda HGR_Y ; YY
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calcsine_div2:
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lsr ; 2
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tax
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clc
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lda sinetable,X
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adc FRAME
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sta oval_row_sum_smc+1
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ldx HGR_Y ; YY
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ldy #39 ; XX
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oval_xloop:
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;=====================
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; critical inner loop
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; every cycle here is 40x192 cycles
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;=====================
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lda sinetable,Y ; 4+
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clc ; 2
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oval_row_sum_smc:
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adc #$dd ; row base value ; 2
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lsr ; double colors ; 2
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; also puts bit in carry
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; which helps make blue
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and #$7 ; mask ; 2
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tax ; 2
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lda colorlookup2,X ; lookup in table ; 5
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oval_ror_nop_smc:
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ror ; $6A/$EA ; 2
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; and #$7f ; make all purple
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sta (GBASL),Y ; 6
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lda oval_ror_nop_smc ; toggle ror/nop ; 4
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eor #$80 ; 2
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sta oval_ror_nop_smc ; 4
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dey ; 2
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bpl oval_xloop ; 2/3
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dec HGR_Y
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lda HGR_Y
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cmp #$ff
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bne oval_yloop
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; we skip drawing line 0 as it makes it easier
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oval_flip_pages:
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; Y should be $FF here
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; iny
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lda HGR_PAGE
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cmp #$20
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bne oval_done_page
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dey
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oval_done_page:
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ldx PAGE1-$FE,Y ; set display page to PAGE1 or PAGE2
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eor #$60 ; flip draw page between $400/$800
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sta HGR_PAGE
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bne draw_oval ; bra
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colorlookup2:
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.byte $11,$55,$5d,$7f,$5d,$55,$11,$00
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;sinetable_base:
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; this is actually (32*sin(x))
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;.byte $00,$03,$06,$09,$0C,$0F,$11,$14
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;.byte $16,$18,$1A,$1C,$1D,$1E,$1F,$1F
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;.byte $20
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;,$1F,$1F,$1E,$1D,$1C,$1A,$18
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;.byte $16,$14,$11,$0F,$0C,$09,$06,$03
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; for bot
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; 3F5 - 7d = 378
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; jmp oval
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;sinetable=$6000
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@ -0,0 +1,94 @@
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; wires -- Apple II Hires
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; go for 100 frames?
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wires:
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; jsr HGR2
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reset_x:
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ldx #$0
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stx FRAME
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outer_loop:
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; pulse loop horizontal
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lda #$00
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tay
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sta GBASL
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lda #$40
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sta GBASH
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horiz_loop:
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lda even_lookup,X
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sta (GBASL),Y
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iny
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lda odd_lookup,X
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sta (GBASL),Y
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iny
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bne noflo2
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inc GBASH
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noflo2:
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lda #$44
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cmp GBASH
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bne horiz_loop
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; A should already be $44 here
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; Y should be 0
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vert_loop:
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txa
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clc
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adc #2
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asl
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asl
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adc #$40
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sbc GBASH
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cmp #8
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lda #$81
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bcs noeor
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ora #$02
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noeor:
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sta (GBASL),Y
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inc GBASL
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inc GBASL
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bne noflo
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inc GBASH
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noflo:
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lda #$60
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cmp GBASH
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bne vert_loop
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inx ; wrap at 7
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cpx #7
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beq reset_x
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inc FRAME
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bne outer_loop
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rts
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even_lookup:
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.byte $D7,$DD,$F5, $D5,$D5,$D5,$D5
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odd_lookup:
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.byte $AA,$AA,$AA, $AB,$AE,$BA,$EA
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; want this to be at 3f5
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; Length is 94 so start at
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; $3F5 - 91 = $39A
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@ -20,5 +20,6 @@ HGR_Y = $E2
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HGR_COLOR = $E4
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HGR_PAGE = $E6
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COUNT = $FB
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FRAME = $FC
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