Basic rendering of projectiles

- Added gravity
- Physics now 8.8 instead of 12.4 fixed point
This commit is contained in:
blondie7575 2017-08-24 21:45:05 -07:00
parent e0c968eb48
commit 3e99f10ec7
8 changed files with 254 additions and 79 deletions

View File

@ -7,7 +7,7 @@ import math
def twosCompliment(value):
return (value^65535)+1
def toFixed(flt): # Floating point to 12.4 fixed point
def toFixed124(flt): # Floating point to 12.4 fixed point
whole = max(-2048, min(2047, math.trunc(flt))) # Clamp to signed range
frac = abs(flt)%1
binary = (abs(whole)<<4) + math.trunc(16*frac)
@ -18,6 +18,17 @@ def toFixed(flt): # Floating point to 12.4 fixed point
return binary
def toFixed88(flt): # Floating point to 8.8 fixed point
whole = max(-128, min(127, math.trunc(flt))) # Clamp to signed range
frac = abs(flt)%1
binary = (abs(whole)<<8) + math.trunc(256*frac)
if (flt<0 and abs(flt)>0.0037):
binary = twosCompliment(binary)
return binary
def main(argv):
print ("sineTable:\t\t; 8.8 fixed point",end="")
@ -34,7 +45,7 @@ def main(argv):
print (",", end="")
print ("\n\nangleToVectorX:\t\t; 12.4 fixed point, counterclockwise angle, +x=(1,0)",end="")
print ("\n\nangleToVectorX:\t\t; 8.8 fixed point, counterclockwise angle, +x=(1,0)",end="")
rowCount = 11
for v in range(0,360):
@ -43,12 +54,12 @@ def main(argv):
print ("\n\t.word ", end="")
rowCount=0
print ("$%04x" % toFixed(math.cos(math.radians(v))), end="")
print ("$%04x" % toFixed88(math.cos(math.radians(v))), end="")
if (rowCount<11):
print (",", end="")
print ("\n\nangleToVectorY:\t\t; 12.4 fixed point, counterclockwise angle, +x=(1,0)",end="")
print ("\n\nangleToVectorY:\t\t; 8.8 fixed point, counterclockwise angle, +x=(1,0)",end="")
rowCount = 11
for v in range(0,360):
@ -57,7 +68,7 @@ def main(argv):
print ("\n\t.word ", end="")
rowCount=0
print ("$%04x" % toFixed(math.sin(math.radians(v))), end="")
print ("$%04x" % toFixed88(math.sin(math.radians(v))), end="")
if (rowCount<11):
print (",", end="")

View File

@ -64,7 +64,9 @@ gameplayLoopFire:
jsr fire
gameplayLoopProjectiles:
jsr unrenderProjectiles
jsr updateProjectiles
jsr renderProjectiles
gameplayLoopEndFrame:

View File

@ -74,3 +74,65 @@ renderGameobject:
renderGameobjectDone:
RESTORE_AXY
rts
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; unrenderGameobject
;
; PARAML0 = Pointer to gameobject data
;
unrenderGameobject:
SAVE_AXY
; Find gameobject location in video memory
ldy #0
; X
lda (PARAML0),y
lsr
sec
sbc leftScreenEdge
bmi unrenderGameobjectDone ; Gameobject is off left edge of screen
cmp #320 - GAMEOBJECTWIDTH
bpl unrenderGameobjectDone ; Gameobject is off right edge of screen
sta SCRATCHL
; Y
iny
iny
sec
lda #200
sbc (PARAML0),y
bmi unrenderGameobjectDone ; Gameobject is off top edge of screen
cmp #200 - GAMEOBJECTHEIGHT
bpl unrenderGameobjectDone ; Gameobject is off bottom edge of screen
asl
tax
lda vramYOffset,x
clc
adc SCRATCHL
tax
; X now contains the VRAM offset of the upper left corner
lda #$0000
sta VRAM,x
sta VRAM+2,x
sta VRAM+160,x
sta VRAM+160+2,x
sta VRAM+160*2,x
sta VRAM+160*2+2,x
sta VRAM+160*3,x
sta VRAM+160*3+2,x
sta VRAM+160*4,x
sta VRAM+160*4+2,x
sta VRAM+160*5,x
sta VRAM+160*5+2,x
sta VRAM+160*6,x
sta VRAM+160*6+2,x
sta VRAM+160*7,x
sta VRAM+160*7+2,x
unrenderGameobjectDone:
RESTORE_AXY
rts

Binary file not shown.

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@ -19,7 +19,7 @@ mainBank2:
; Set up SCBs
jsr initSCBs
;SHRVIDEO
SHRVIDEO
jmp beginGameplay

View File

@ -71,6 +71,8 @@ playerFire:
lda playerData+PD_POSX,y
sta projectileParams
lda playerData+PD_POSY,y
clc
adc #GAMEOBJECTHEIGHT
sta projectileParams+2
lda playerData+PD_ANGLE,y
sta projectileParams+4

View File

@ -13,8 +13,10 @@ projectileData:
.word 0 ; Pos X (12.4 fixed point)
.word 0 ; Pos Y (12.4 fixed point)
.word 0 ; Velocity X (12.4 fixed point)
.word 0 ; Velocity Y (12.4 fixed point)
.word 0 ; Velocity X (8.8 fixed point)
.word 0 ; Velocity Y (8.8 fixed point)
.word 0,0 ; Padding
JD_POSX = 0 ; Byte offsets into projectile data structure
JD_POSY = 2
@ -23,6 +25,19 @@ JD_PRECISEY = 6
JD_VX = 8
JD_VY = 10
GRAVITY = $ffff ; 8.8 fixed point
.macro PROJECTILEPTR_Y
tya ; Pointer to projectil structure from index
asl
asl
asl
asl
tay
.endmacro
projectileParams:
.word 0 ; Starting pos X
@ -75,7 +90,6 @@ fireProjectile:
asl
tax
lda angleToVectorX,x ; Velocity X
sta (SCRATCHL),y
iny
iny
@ -96,14 +110,29 @@ fireProjectile:
; Trashes SCRATCHL
;
updateProjectiles:
SAVE_AXY
SAVE_AY
lda projectileData+JD_POSX
bmi updateProjectilesDone
; Integrate X velocity over position
lda projectileData+JD_PRECISEX
; Integrate gravity over velocity
lda projectileData+JD_VY
clc
adc projectileData+JD_VX
adc #GRAVITY
sta projectileData+JD_VY
; Integrate X velocity over position
lda projectileData+JD_VX
; Convert 8.8 to 12.4
cmp #$8000
ror
cmp #$8000
ror
cmp #$8000
ror
cmp #$8000
ror
clc
adc projectileData+JD_PRECISEX
sta projectileData+JD_PRECISEX
; Convert to integral for rendering
@ -112,11 +141,23 @@ updateProjectiles:
lsr
lsr
sta projectileData+JD_POSX
bmi updateProjectilesDelete
cmp #TERRAINWIDTH-GAMEOBJECTWIDTH-1
bpl updateProjectilesDelete
; Integrate Y velocity over position
lda projectileData+JD_PRECISEY
lda projectileData+JD_VY
; Convert 8.8 to 12.4
cmp #$8000
ror
cmp #$8000
ror
cmp #$8000
ror
cmp #$8000
ror
clc
adc projectileData+JD_VY
adc projectileData+JD_PRECISEY
sta projectileData+JD_PRECISEY
; Convert to integral for rendering
@ -125,7 +166,64 @@ updateProjectiles:
lsr
lsr
sta projectileData+JD_POSY
brk
bmi updateProjectilesDelete
cmp #201
bpl updateProjectilesDelete
updateProjectilesDone:
RESTORE_AXY
RESTORE_AY
rts
updateProjectilesDelete:
ldy #0
jsr deleteProjectile
bra updateProjectilesDone
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; deleteProjectile
;
; Y = Projectile index
; Trashes A
;
deleteProjectile:
PROJECTILEPTR_Y
lda #-1
sta projectileData+JD_POSX,y
rts
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; renderProjectiles
;
;
renderProjectiles:
pha
lda projectileData
bmi renderProjectilesDone
lda #projectileData
sta PARAML0
jsr renderGameobject
renderProjectilesDone:
pla
rts
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; unrenderProjectiles
;
;
unrenderProjectiles:
pha
lda projectileData
bmi unrenderProjectilesDone
lda #projectileData
sta PARAML0
jsr unrenderGameobject
unrenderProjectilesDone:
pla
rts

124
tables.s
View File

@ -64,69 +64,69 @@ sineTable: ; 8.8 fixed point
.word $004f,$0051,$0054,$0057,$005a,$005d,$0060,$0063
.word $0067,$006a,$006d,$0070,$0073,$0076,$0079,$007c
angleToVectorX: ; 12.4 fixed point, counterclockwise angle, +x=(1,0)
.word $0010,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f
.word $000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000e,$000e,$000e
.word $000e,$000e,$000e,$000e,$000e,$000d,$000d,$000d,$000d,$000d,$000d,$000d
.word $000c,$000c,$000c,$000c,$000c,$000c,$000b,$000b,$000b,$000b,$000b,$000a
.word $000a,$000a,$000a,$000a,$0009,$0009,$0009,$0009,$0008,$0008,$0008,$0008
.word $0008,$0007,$0007,$0007,$0007,$0006,$0006,$0006,$0005,$0005,$0005,$0005
.word $0004,$0004,$0004,$0004,$0003,$0003,$0003,$0003,$0002,$0002,$0002,$0001
.word $0001,$0001,$0001,$0000,$0000,$0000,$0000,$0000,$0000,$0000,$ffff,$ffff
.word $ffff,$ffff,$fffe,$fffe,$fffe,$fffd,$fffd,$fffd,$fffd,$fffc,$fffc,$fffc
.word $fffc,$fffb,$fffb,$fffb,$fffb,$fffa,$fffa,$fffa,$fff9,$fff9,$fff9,$fff9
.word $fff9,$fff8,$fff8,$fff8,$fff8,$fff7,$fff7,$fff7,$fff7,$fff6,$fff6,$fff6
.word $fff6,$fff6,$fff5,$fff5,$fff5,$fff5,$fff5,$fff4,$fff4,$fff4,$fff4,$fff4
.word $fff4,$fff3,$fff3,$fff3,$fff3,$fff3,$fff3,$fff3,$fff2,$fff2,$fff2,$fff2
.word $fff2,$fff2,$fff2,$fff2,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1
.word $fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1
.word $fff0,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1
.word $fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff2,$fff2,$fff2
.word $fff2,$fff2,$fff2,$fff2,$fff2,$fff3,$fff3,$fff3,$fff3,$fff3,$fff3,$fff3
.word $fff4,$fff4,$fff4,$fff4,$fff4,$fff4,$fff5,$fff5,$fff5,$fff5,$fff5,$fff6
.word $fff6,$fff6,$fff6,$fff6,$fff7,$fff7,$fff7,$fff7,$fff8,$fff8,$fff8,$fff8
.word $fff8,$fff9,$fff9,$fff9,$fff9,$fffa,$fffa,$fffa,$fffb,$fffb,$fffb,$fffb
.word $fffc,$fffc,$fffc,$fffc,$fffd,$fffd,$fffd,$fffd,$fffe,$fffe,$fffe,$ffff
.word $ffff,$ffff,$ffff,$0000,$0000,$0000,$0000,$0000,$0000,$0000,$0001,$0001
.word $0001,$0001,$0002,$0002,$0002,$0003,$0003,$0003,$0003,$0004,$0004,$0004
.word $0004,$0005,$0005,$0005,$0005,$0006,$0006,$0006,$0007,$0007,$0007,$0007
.word $0008,$0008,$0008,$0008,$0008,$0009,$0009,$0009,$0009,$000a,$000a,$000a
.word $000a,$000a,$000b,$000b,$000b,$000b,$000b,$000c,$000c,$000c,$000c,$000c
.word $000c,$000d,$000d,$000d,$000d,$000d,$000d,$000d,$000e,$000e,$000e,$000e
.word $000e,$000e,$000e,$000e,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f
.word $000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f
angleToVectorX: ; 8.8 fixed point, counterclockwise angle, +x=(1,0)
.word $0100,$00ff,$00ff,$00ff,$00ff,$00ff,$00fe,$00fe,$00fd,$00fc,$00fc,$00fb
.word $00fa,$00f9,$00f8,$00f7,$00f6,$00f4,$00f3,$00f2,$00f0,$00ee,$00ed,$00eb
.word $00e9,$00e8,$00e6,$00e4,$00e2,$00df,$00dd,$00db,$00d9,$00d6,$00d4,$00d1
.word $00cf,$00cc,$00c9,$00c6,$00c4,$00c1,$00be,$00bb,$00b8,$00b5,$00b1,$00ae
.word $00ab,$00a7,$00a4,$00a1,$009d,$009a,$0096,$0092,$008f,$008b,$0087,$0083
.word $0080,$007c,$0078,$0074,$0070,$006c,$0068,$0064,$005f,$005b,$0057,$0053
.word $004f,$004a,$0046,$0042,$003d,$0039,$0035,$0030,$002c,$0028,$0023,$001f
.word $001a,$0016,$0011,$000d,$0008,$0004,$0000,$fffc,$fff8,$fff3,$ffef,$ffea
.word $ffe6,$ffe1,$ffdd,$ffd8,$ffd4,$ffd0,$ffcb,$ffc7,$ffc3,$ffbe,$ffba,$ffb6
.word $ffb1,$ffad,$ffa9,$ffa5,$ffa1,$ff9c,$ff98,$ff94,$ff90,$ff8c,$ff88,$ff84
.word $ff81,$ff7d,$ff79,$ff75,$ff71,$ff6e,$ff6a,$ff66,$ff63,$ff5f,$ff5c,$ff59
.word $ff55,$ff52,$ff4f,$ff4b,$ff48,$ff45,$ff42,$ff3f,$ff3c,$ff3a,$ff37,$ff34
.word $ff31,$ff2f,$ff2c,$ff2a,$ff27,$ff25,$ff23,$ff21,$ff1e,$ff1c,$ff1a,$ff18
.word $ff17,$ff15,$ff13,$ff12,$ff10,$ff0e,$ff0d,$ff0c,$ff0a,$ff09,$ff08,$ff07
.word $ff06,$ff05,$ff04,$ff04,$ff03,$ff02,$ff02,$ff01,$ff01,$ff01,$ff01,$ff01
.word $ff00,$ff01,$ff01,$ff01,$ff01,$ff01,$ff02,$ff02,$ff03,$ff04,$ff04,$ff05
.word $ff06,$ff07,$ff08,$ff09,$ff0a,$ff0c,$ff0d,$ff0e,$ff10,$ff12,$ff13,$ff15
.word $ff17,$ff18,$ff1a,$ff1c,$ff1e,$ff21,$ff23,$ff25,$ff27,$ff2a,$ff2c,$ff2f
.word $ff31,$ff34,$ff37,$ff3a,$ff3c,$ff3f,$ff42,$ff45,$ff48,$ff4b,$ff4f,$ff52
.word $ff55,$ff59,$ff5c,$ff5f,$ff63,$ff66,$ff6a,$ff6e,$ff71,$ff75,$ff79,$ff7d
.word $ff80,$ff84,$ff88,$ff8c,$ff90,$ff94,$ff98,$ff9c,$ffa1,$ffa5,$ffa9,$ffad
.word $ffb1,$ffb6,$ffba,$ffbe,$ffc3,$ffc7,$ffcb,$ffd0,$ffd4,$ffd8,$ffdd,$ffe1
.word $ffe6,$ffea,$ffef,$fff3,$fff8,$fffc,$0000,$0004,$0008,$000d,$0011,$0016
.word $001a,$001f,$0023,$0028,$002c,$0030,$0035,$0039,$003d,$0042,$0046,$004a
.word $004f,$0053,$0057,$005b,$005f,$0064,$0068,$006c,$0070,$0074,$0078,$007c
.word $0080,$0083,$0087,$008b,$008f,$0092,$0096,$009a,$009d,$00a1,$00a4,$00a7
.word $00ab,$00ae,$00b1,$00b5,$00b8,$00bb,$00be,$00c1,$00c4,$00c6,$00c9,$00cc
.word $00cf,$00d1,$00d4,$00d6,$00d9,$00db,$00dd,$00df,$00e2,$00e4,$00e6,$00e8
.word $00e9,$00eb,$00ed,$00ee,$00f0,$00f2,$00f3,$00f4,$00f6,$00f7,$00f8,$00f9
.word $00fa,$00fb,$00fc,$00fc,$00fd,$00fe,$00fe,$00ff,$00ff,$00ff,$00ff,$00ff
angleToVectorY: ; 12.4 fixed point, counterclockwise angle, +x=(1,0)
.word $0000,$0000,$0000,$0000,$0001,$0001,$0001,$0001,$0002,$0002,$0002,$0003
.word $0003,$0003,$0003,$0004,$0004,$0004,$0004,$0005,$0005,$0005,$0005,$0006
.word $0006,$0006,$0007,$0007,$0007,$0007,$0007,$0008,$0008,$0008,$0008,$0009
.word $0009,$0009,$0009,$000a,$000a,$000a,$000a,$000a,$000b,$000b,$000b,$000b
.word $000b,$000c,$000c,$000c,$000c,$000c,$000c,$000d,$000d,$000d,$000d,$000d
.word $000d,$000d,$000e,$000e,$000e,$000e,$000e,$000e,$000e,$000e,$000f,$000f
.word $000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f
.word $000f,$000f,$000f,$000f,$000f,$000f,$0010,$000f,$000f,$000f,$000f,$000f
.word $000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f,$000f
.word $000f,$000f,$000f,$000e,$000e,$000e,$000e,$000e,$000e,$000e,$000e,$000d
.word $000d,$000d,$000d,$000d,$000d,$000d,$000c,$000c,$000c,$000c,$000c,$000c
.word $000b,$000b,$000b,$000b,$000b,$000a,$000a,$000a,$000a,$000a,$0009,$0009
.word $0009,$0009,$0008,$0008,$0008,$0008,$0007,$0007,$0007,$0007,$0007,$0006
.word $0006,$0006,$0005,$0005,$0005,$0005,$0004,$0004,$0004,$0004,$0003,$0003
.word $0003,$0003,$0002,$0002,$0002,$0001,$0001,$0001,$0001,$0000,$0000,$0000
.word $0000,$0000,$0000,$0000,$ffff,$ffff,$ffff,$ffff,$fffe,$fffe,$fffe,$fffd
.word $fffd,$fffd,$fffd,$fffc,$fffc,$fffc,$fffc,$fffb,$fffb,$fffb,$fffb,$fffa
.word $fffa,$fffa,$fff9,$fff9,$fff9,$fff9,$fff8,$fff8,$fff8,$fff8,$fff8,$fff7
.word $fff7,$fff7,$fff7,$fff6,$fff6,$fff6,$fff6,$fff6,$fff5,$fff5,$fff5,$fff5
.word $fff5,$fff4,$fff4,$fff4,$fff4,$fff4,$fff4,$fff3,$fff3,$fff3,$fff3,$fff3
.word $fff3,$fff3,$fff2,$fff2,$fff2,$fff2,$fff2,$fff2,$fff2,$fff2,$fff1,$fff1
.word $fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1
.word $fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff0,$fff1,$fff1,$fff1,$fff1,$fff1
.word $fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1,$fff1
.word $fff1,$fff1,$fff1,$fff2,$fff2,$fff2,$fff2,$fff2,$fff2,$fff2,$fff2,$fff3
.word $fff3,$fff3,$fff3,$fff3,$fff3,$fff3,$fff4,$fff4,$fff4,$fff4,$fff4,$fff4
.word $fff5,$fff5,$fff5,$fff5,$fff5,$fff6,$fff6,$fff6,$fff6,$fff6,$fff7,$fff7
.word $fff7,$fff7,$fff8,$fff8,$fff8,$fff8,$fff8,$fff9,$fff9,$fff9,$fff9,$fffa
.word $fffa,$fffa,$fffb,$fffb,$fffb,$fffb,$fffc,$fffc,$fffc,$fffc,$fffd,$fffd
.word $fffd,$fffd,$fffe,$fffe,$fffe,$ffff,$ffff,$ffff,$ffff,$0000,$0000,$0000
angleToVectorY: ; 8.8 fixed point, counterclockwise angle, +x=(1,0)
.word $0000,$0004,$0008,$000d,$0011,$0016,$001a,$001f,$0023,$0028,$002c,$0030
.word $0035,$0039,$003d,$0042,$0046,$004a,$004f,$0053,$0057,$005b,$005f,$0064
.word $0068,$006c,$0070,$0074,$0078,$007c,$007f,$0083,$0087,$008b,$008f,$0092
.word $0096,$009a,$009d,$00a1,$00a4,$00a7,$00ab,$00ae,$00b1,$00b5,$00b8,$00bb
.word $00be,$00c1,$00c4,$00c6,$00c9,$00cc,$00cf,$00d1,$00d4,$00d6,$00d9,$00db
.word $00dd,$00df,$00e2,$00e4,$00e6,$00e8,$00e9,$00eb,$00ed,$00ee,$00f0,$00f2
.word $00f3,$00f4,$00f6,$00f7,$00f8,$00f9,$00fa,$00fb,$00fc,$00fc,$00fd,$00fe
.word $00fe,$00ff,$00ff,$00ff,$00ff,$00ff,$0100,$00ff,$00ff,$00ff,$00ff,$00ff
.word $00fe,$00fe,$00fd,$00fc,$00fc,$00fb,$00fa,$00f9,$00f8,$00f7,$00f6,$00f4
.word $00f3,$00f2,$00f0,$00ee,$00ed,$00eb,$00e9,$00e8,$00e6,$00e4,$00e2,$00df
.word $00dd,$00db,$00d9,$00d6,$00d4,$00d1,$00cf,$00cc,$00c9,$00c6,$00c4,$00c1
.word $00be,$00bb,$00b8,$00b5,$00b1,$00ae,$00ab,$00a7,$00a4,$00a1,$009d,$009a
.word $0096,$0092,$008f,$008b,$0087,$0083,$007f,$007c,$0078,$0074,$0070,$006c
.word $0068,$0064,$005f,$005b,$0057,$0053,$004f,$004a,$0046,$0042,$003d,$0039
.word $0035,$0030,$002c,$0028,$0023,$001f,$001a,$0016,$0011,$000d,$0008,$0004
.word $0000,$fffc,$fff8,$fff3,$ffef,$ffea,$ffe6,$ffe1,$ffdd,$ffd8,$ffd4,$ffd0
.word $ffcb,$ffc7,$ffc3,$ffbe,$ffba,$ffb6,$ffb1,$ffad,$ffa9,$ffa5,$ffa1,$ff9c
.word $ff98,$ff94,$ff90,$ff8c,$ff88,$ff84,$ff80,$ff7d,$ff79,$ff75,$ff71,$ff6e
.word $ff6a,$ff66,$ff63,$ff5f,$ff5c,$ff59,$ff55,$ff52,$ff4f,$ff4b,$ff48,$ff45
.word $ff42,$ff3f,$ff3c,$ff3a,$ff37,$ff34,$ff31,$ff2f,$ff2c,$ff2a,$ff27,$ff25
.word $ff23,$ff21,$ff1e,$ff1c,$ff1a,$ff18,$ff17,$ff15,$ff13,$ff12,$ff10,$ff0e
.word $ff0d,$ff0c,$ff0a,$ff09,$ff08,$ff07,$ff06,$ff05,$ff04,$ff04,$ff03,$ff02
.word $ff02,$ff01,$ff01,$ff01,$ff01,$ff01,$ff00,$ff01,$ff01,$ff01,$ff01,$ff01
.word $ff02,$ff02,$ff03,$ff04,$ff04,$ff05,$ff06,$ff07,$ff08,$ff09,$ff0a,$ff0c
.word $ff0d,$ff0e,$ff10,$ff12,$ff13,$ff15,$ff17,$ff18,$ff1a,$ff1c,$ff1e,$ff21
.word $ff23,$ff25,$ff27,$ff2a,$ff2c,$ff2f,$ff31,$ff34,$ff37,$ff3a,$ff3c,$ff3f
.word $ff42,$ff45,$ff48,$ff4b,$ff4f,$ff52,$ff55,$ff59,$ff5c,$ff5f,$ff63,$ff66
.word $ff6a,$ff6e,$ff71,$ff75,$ff79,$ff7d,$ff80,$ff84,$ff88,$ff8c,$ff90,$ff94
.word $ff98,$ff9c,$ffa1,$ffa5,$ffa9,$ffad,$ffb1,$ffb6,$ffba,$ffbe,$ffc3,$ffc7
.word $ffcb,$ffd0,$ffd4,$ffd8,$ffdd,$ffe1,$ffe6,$ffea,$ffef,$fff3,$fff8,$fffc
vramRowEndsMinusOne:
.word $209f,$213f,$21df,$227f,$231f,$23bf,$245f,$24ff,$259f,$263f,$26df,$277f,$281f,$28bf,$295f,$29ff,$2a9f,$2b3f,$2bdf,$2c7f