mirror of
https://github.com/a2-4am/4cade.git
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working SHR slideshows
This commit is contained in:
4am
parent
752791c33c
commit
418c5e0245
2
Makefile
2
Makefile
@ -64,12 +64,12 @@ asm: md
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$(ACME) src/fx/fx.hgr.ripple.a
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$(ACME) src/fx/fx.hgr.ripple2.a
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$(ACME) src/fx/fx.hgr.star.a
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$(ACME) src/fx/fx.shr.fizzle.a
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dsk: md asm
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$(CADIUS) CREATEVOLUME build/"$(DISK)" "${VOLUME}" 32766KB >>build/log
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cp res/_FileInformation.txt build/ >>build/log
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$(CADIUS) ADDFILE build/"$(DISK)" "/${VOLUME}/" "build/LAUNCHER.SYSTEM" >>build/log
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# cp res/prefs-sample.conf build/PREFS.CONF >>build/log
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cp res/prefs.conf build/PREFS.CONF >>build/log
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bin/padto 512 build/PREFS.CONF
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$(CADIUS) ADDFILE build/"$(DISK)" "/${VOLUME}/" "res/COVER" >>build/log
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@ -1 +1 @@
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#
# Mega-Attract-Mode configuration file
#
# Mega-Attract-Mode is split into modules. Each module can be a
# short slideshow or a self-running demo (like a game's built-in
# 'attract mode'). Modules are run in the order listed here, one
# after the next, until interrupted by user input. The last-run
# module is tracked in the global prefs file.
#
# Format:
# key=value
#
# |key| must be unique within this file
#
# |value| must be one of
# 0 for self-running demo (|key| is an executable binary file in /demo/)
# 1 for title slideshow (|key| is a file containing a list of HGR graphics in /hgr/)
# 2 for action slideshow (|key| is a file containing a list of HGR graphics in /action/)
# 3 for DHGR title slideshow (|key| is a file containing a list of DHGR graphics in /dhgr/)
#
# Blank lines and lines beginning with '#' are ignored (like this one!)
# A line beginning with '[' terminates the parsing
#
FAVORITES1.CONF=1
BURGERTIME=0
ACTIONPOP.CONF=2
DHGR.CONF=3
STELLAR.7=0
ACTIONCD1.CONF=2
FAVORITES4.CONF=1
CONAN=0
SYNERGIST.CONF=1
ACTIONMNO1.CONF=2
HARD.HAT.MACK=0
ACTIONCLR1.CONF=2
IDSI.CONF=1
AQUATRON=0
BALLY.CONF=1
MR.DO.CONF=2
BOUNCING.KMNGAS=0
ACTIONS3.CONF=2
FAVORITES3.CONF=1
DUNG.BEETLES=0
BRODERBUND.CONF=1
ACTIONCLR2.CONF=2
JUNGLE.HUNT=0
ACTIONAB1.CONF=2
T.CONF=1
MR.COOL=0
SIRIUS.CONF=1
ACTIONCLR3.CONF=2
MATTEL.CONF=1
THUNDERBOMBS=0
FAVORITES2.CONF=1
ACTIONAB2.CONF=2
VINDICATOR=0
ACTIONBURG.CONF=2
ATARI.CONF=1
ROBOTRON=0
OTHER1.CONF=1
ACTIONEFG2.CONF=2
REPTON=0
ACTIONCLR4.CONF=2
DATAMOST.CONF=1
AGENT.USA=0
MNO.CONF=1
ACTIONPQR1.CONF=2
ALIEN.DOWNPOUR=0
ACTIONT1.CONF=2
SIERRA.CONF=1
POOYAN=0
CD.CONF=1
ACTIONCLR5.CONF=2
CEILING.ZERO=0
ACTIONPQR2.CONF=2
MICROFUN.CONF=1
GAMMA.GOBLINS=0
OTHER2.CONF=1
ACTIONT3.CONF=2
WAVY.NAVY=0
ACTIONT2.CONF=2
SYNAPSE.CONF=1
WARP.DESTROYER=0
PICCADILLY.CONF=1
ACTIONMNO2.CONF=2
CHOPLIFTER=0
ACTIONEFG1.CONF=2
DATAEAST.CONF=1
PEST.PATROL=0
EA.CONF=1
ACTIONEFG3.CONF=2
KARATEKA=0
ACTIONS2.CONF=2
SEGA.CONF=1
LOST.TOMB=0
HIJKL.CONF=1
ACTIONHIJ2.CONF=2
ALIEN.RAIN=0
ACTIONCD2.CONF=2
ACTIVISION.CONF=1
DINO.EGGS=0
TAITO.CONF=1
ACTIONAB3.CONF=2
FLIP.OUT=0
ACTIONHIJ1.CONF=2
PENGUIN.CONF=1
PACMAN=0
DATASOFT.CONF=1
ACTIONS1.CONF=2
ORILEYS.MINE=0
ACTIONCD3.CONF=2
SUBLOGIC.CONF=1
HIGH.RISE=0
EFG.CONF=1
ALIEN.AMBUSH=0
EPYX.CONF=1
BOLO=0
AB.CONF=1
CHAMP.LODERUN=0
PQR.CONF=1
GUMBALL=0
OTHER3.CONF=1
GOONIES=0
S.CONF=1
LADY.TUT=0
PIEMAN=0
SPYS.DEMISE=0
STARGATE=0
PLASMANIA=0
SPARE.CHANGE=0
SAMMY.LIGHTFOOT=0
SNEAKERS=0
LODE.RUNNER=0
SPY.HUNTER=0
NIBBLER=0
SERPENTINE=0
PITFALL.II=0
CIDER.SPIDER=0
FIREBIRD=0
TUBEWAY=0
BUZZARD.BAIT=0
SNAKE.BYTE=0
TRACK.AND.FIELD=0
#FORMULA.1=0
#SPIDER.RAID=0
[eof]
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#
# Mega-Attract-Mode configuration file
#
# Mega-Attract-Mode is split into modules. Each module can be a
# short slideshow or a self-running demo (like a game's built-in
# 'attract mode'). Modules are run in the order listed here, one
# after the next, until interrupted by user input. The last-run
# module is tracked in the global prefs file.
#
# Format:
# key=value
#
# |key| must be unique within this file
#
# |value| must be one of
# 0 for self-running demo (|key| is an executable binary file in /demo/)
# 1 for title slideshow (|key| is a file containing a list of HGR graphics in /hgr/)
# 2 for action slideshow (|key| is a file containing a list of HGR graphics in /action/)
# 3 for DHGR title slideshow (|key| is a file containing a list of DHGR graphics in /dhgr/)
# 4 for SHR box art slideshow (|key| is a file containing a list of SHR graphics in /shr/)
#
# Blank lines and lines beginning with '#' are ignored (like this one!)
# A line beginning with '[' terminates the parsing
#
SHR.CONF=4
FAVORITES1.CONF=1
BURGERTIME=0
ACTIONPOP.CONF=2
DHGR.CONF=3
STELLAR.7=0
ACTIONCD1.CONF=2
FAVORITES4.CONF=1
CONAN=0
SYNERGIST.CONF=1
ACTIONMNO1.CONF=2
HARD.HAT.MACK=0
ACTIONCLR1.CONF=2
IDSI.CONF=1
AQUATRON=0
BALLY.CONF=1
MR.DO.CONF=2
BOUNCING.KMNGAS=0
ACTIONS3.CONF=2
FAVORITES3.CONF=1
DUNG.BEETLES=0
BRODERBUND.CONF=1
ACTIONCLR2.CONF=2
JUNGLE.HUNT=0
ACTIONAB1.CONF=2
T.CONF=1
MR.COOL=0
SIRIUS.CONF=1
ACTIONCLR3.CONF=2
MATTEL.CONF=1
THUNDERBOMBS=0
FAVORITES2.CONF=1
ACTIONAB2.CONF=2
VINDICATOR=0
ACTIONBURG.CONF=2
ATARI.CONF=1
ROBOTRON=0
OTHER1.CONF=1
ACTIONEFG2.CONF=2
REPTON=0
ACTIONCLR4.CONF=2
DATAMOST.CONF=1
AGENT.USA=0
MNO.CONF=1
ACTIONPQR1.CONF=2
ALIEN.DOWNPOUR=0
ACTIONT1.CONF=2
SIERRA.CONF=1
POOYAN=0
CD.CONF=1
ACTIONCLR5.CONF=2
CEILING.ZERO=0
ACTIONPQR2.CONF=2
MICROFUN.CONF=1
GAMMA.GOBLINS=0
OTHER2.CONF=1
ACTIONT3.CONF=2
WAVY.NAVY=0
ACTIONT2.CONF=2
SYNAPSE.CONF=1
WARP.DESTROYER=0
PICCADILLY.CONF=1
ACTIONMNO2.CONF=2
CHOPLIFTER=0
ACTIONEFG1.CONF=2
DATAEAST.CONF=1
PEST.PATROL=0
EA.CONF=1
ACTIONEFG3.CONF=2
KARATEKA=0
ACTIONS2.CONF=2
SEGA.CONF=1
LOST.TOMB=0
HIJKL.CONF=1
ACTIONHIJ2.CONF=2
ALIEN.RAIN=0
ACTIONCD2.CONF=2
ACTIVISION.CONF=1
DINO.EGGS=0
TAITO.CONF=1
ACTIONAB3.CONF=2
FLIP.OUT=0
ACTIONHIJ1.CONF=2
PENGUIN.CONF=1
PACMAN=0
DATASOFT.CONF=1
ACTIONS1.CONF=2
ORILEYS.MINE=0
ACTIONCD3.CONF=2
SUBLOGIC.CONF=1
HIGH.RISE=0
EFG.CONF=1
ALIEN.AMBUSH=0
EPYX.CONF=1
BOLO=0
AB.CONF=1
CHAMP.LODERUN=0
PQR.CONF=1
GUMBALL=0
OTHER3.CONF=1
GOONIES=0
S.CONF=1
LADY.TUT=0
PIEMAN=0
SPYS.DEMISE=0
STARGATE=0
PLASMANIA=0
SPARE.CHANGE=0
SAMMY.LIGHTFOOT=0
SNEAKERS=0
LODE.RUNNER=0
SPY.HUNTER=0
NIBBLER=0
SERPENTINE=0
PITFALL.II=0
CIDER.SPIDER=0
FIREBIRD=0
TUBEWAY=0
BUZZARD.BAIT=0
SNAKE.BYTE=0
TRACK.AND.FIELD=0
#FORMULA.1=0
#SPIDER.RAID=0
[eof]
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@ -41,3 +41,4 @@ DHGR.RADIAL4=Type(06),AuxType(6000),Access(C3)
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DHGR.RADIAL5=Type(06),AuxType(6000),Access(C3)
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DHGR.STAR=Type(06),AuxType(6000),Access(C3)
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DHGR.CORNER=Type(06),AuxType(6000),Access(C3)
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SHR.FIZZLE=Type(06),AuxType(A000),Access(C3)
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@ -1 +0,0 @@
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# 4cade preferences file
# Do not edit by hand.
# Or do. I'm a comment, not a cop.
# value=game directory listed in GAMES.CONF, or empty
LASTPLAYED=SAMMY.LIGHTFOOT
# value=attract mode module listed in ATTRACT.CONF, or empty
NEXTATTRACT=FAVORITES.CONF
# value=transition effect listed in FX.CONF, or empty
NEXTFX=RIPPLE
# value=transition effect listed in DFX.CONF, or empty
NEXTDFX=DHGR.STAR
[eof]
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1
res/ss/SHR.CONF
Normal file
1
res/ss/SHR.CONF
Normal file
@ -0,0 +1 @@
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#
# super hi-res slideshow
#
APPLE.PANIC
BRUCE.LEE
CHAMP.LODERUN
CANYON.CLIMBER
BOUNCING.KMNGAS
PRINCEUNP
SNAKE.BYTE
AGENT.USA
CANNONBALL.BLTZ
ALCAZAR
ALIEN.AMBUSH
BCS.QUEST
BOLO
BRAINTEASERBLVD
CHOPLIFTER
CONAN
CRISIS.MOUNTAIN
CROSSFIRE
[eof]
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@ -13,11 +13,17 @@
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jsr $FC58
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jsr Has64K ; check for 64K (required)
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bcs @no64K
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jsr DisableAccelerator ; set to 1 MHz
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jsr Has128K ; check for 128K (absence is OK, we just filter out some games)
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jsr DisableAccelerator ; set to 1 MHz (supports IIgs and many common accelerator cards)
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jsr IsGS ; check for IIgs (allows super hi-res artwork)
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ror MachineStatus
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jsr HasJoystick ; check for joystick (absence is OK, we just filter out some games)
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ror MachineStatus ; now bit 6 = 1 if 128K
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jsr HasVidHDCard ; check for VidHD card (allows super hi-res artwork even on non-IIgs machines)
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ror MachineStatus
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jsr Has128K ; check for 128K (allows DHGR slideshows and 128K games)
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ror MachineStatus
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jsr HasJoystick ; check for joystick (absence is OK but we filter out some games that require a joystick)
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ror MachineStatus ; now bit 4 = 1 if IIgs
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; bit 5 = 1 if VidHD
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; bit 6 = 1 if 128K
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; bit 7 = 1 if joystick
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jsr init ; initialize ProRWTS2 (bye bye ProDOS)
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@ -50,6 +56,8 @@
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!source "src/prorwts2.a"
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ProRWTSBuffer
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; these routines will only be called once, from main memory, before relocating to language card
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!source "src/hw.iigs.a"
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!source "src/hw.vidhd.a"
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!source "src/hw.memcheck.a"
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!source "src/hw.joystick.a"
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!source "src/hw.normfast.a"
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@ -24,6 +24,8 @@ HTAB = $24
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VTAB = $25
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MachineStatus =$F0 ; bit 7 = 1 if machine has joystick
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; bit 6 = 1 if machine has 128K
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; bit 5 = 1 if machine has a VidHD card
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; bit 4 = 1 if machine is a IIgs
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; $FE ; used by ParseGamesList
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; $FF ; used by ParseGamesList
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95
src/fx/fx.shr.fizzle.a
Normal file
95
src/fx/fx.shr.fizzle.a
Normal file
@ -0,0 +1,95 @@
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;license:MIT
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;(c) 2019 by qkumba
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!cpu 6502
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!to "build/FX/SHR.FIZZLE",plain
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*=$a000
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;init RNG
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ldy #1
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sty @rnd1+1
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dey
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sty @rnd2+1
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;copy SCB and palette
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lda #$9d
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sta $3d
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sty $3c
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ldx #$23 ; copy SCB+palette+this code to auxmem
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sta $c005
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@copystuff
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lda ($3c),y
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sta ($3c),y
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iny
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bne @copystuff
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inc $3d
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dex
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bne @copystuff
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;force write offset 0 otherwise it will be missed
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lda $2000
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sta $2000
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sta $c004
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;iterate
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@loop
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ldy @rnd1+1
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ldx @rnd2+1
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lsr @rnd2+1
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ror @rnd1+1
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bcc +
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;feedback polynomial forms #$4001 for period of 32767
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lda @rnd1+1
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eor #1
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sta @rnd1+1
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lda @rnd2+1
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eor #$40
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sta @rnd2+1
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;don't rewrite SCB or palette
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;it will make the fizzle take longer than obviously needed
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+ cpx #$7d
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bcs +
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sty $26
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sty $3c
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txa
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;select address
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clc
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adc #$20
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sta $27
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sta $3d
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;copy pixel from other page to this page
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ldy #0
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lda ($3c),y
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sta $c005
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sta ($26),y
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sta $c004
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;wait while checking for keypress
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+ ldx #2
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@wait lda $c000
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bmi @exit
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dex
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bne @wait
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;and exit condition
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@rnd2 lda #0
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bne @loop
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@rnd1 lda #0
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cmp #1
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bne @loop
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@exit rts
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20
src/hw.iigs.a
Normal file
20
src/hw.iigs.a
Normal file
@ -0,0 +1,20 @@
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;------------------------------------------------------------------------------
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; IsGS
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; detect IIgs by running CPU-specific magic
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;
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; in: none
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; out: C set if running on a IIgs
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; C clear otherwise
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; A clobbered
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; X/Y preserved
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;------------------------------------------------------------------------------
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IsGS
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lda #0 ; set Z flag
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!cpu 65816
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rep #2 ; clear Z flag on 65816 only
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!cpu 6502
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beq @no
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@yes sec
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+HIDE_NEXT_BYTE
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@no clc
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rts
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@ -13,7 +13,6 @@
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; (c) 1989 Broderbund Software
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; https://github.com/jmechner/Prince-of-Persia-Apple-II/blob/master/01%20POP%20Source/Source/GRAFIX.S#L1225
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;------------------------------------------------------------------------------
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!zone {
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HasJoystick
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lda #0
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sta @joyX
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@ -39,4 +38,3 @@ HasJoystick
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bpl @nextpdl ; kill time
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@joyX !byte 0
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@joyY !byte 0
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}
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33
src/hw.vidhd.a
Normal file
33
src/hw.vidhd.a
Normal file
@ -0,0 +1,33 @@
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;------------------------------------------------------------------------------
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; HasVidHDCard
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; detect VidHD card by searching for magic bytes across all slots
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;
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; in: none
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; out: C set if VidHD card found in any slot
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; if card was found, X = #$Cn where n is the slot number of the card
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; C clear if no VidHD card found
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; other flags clobbered
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; A/Y clobbered
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;------------------------------------------------------------------------------
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HasVidHDCard
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ldx #$c7
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@slotLoop
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stx @byteLoop+2
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ldy #$02
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@byteLoop
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lda $FD00, y ; SMC (high byte)
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cmp @kVidHDMagicBytes, y
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bne @nextSlot
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dey
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bpl @byteLoop
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sec ; found
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rts
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@nextSlot
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dex
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cpx #$c0
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bne @slotLoop
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clc ; not found
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rts
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@kVidHDMagicBytes
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!byte $00, $00, $00
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; !byte $24, $EA, $4C
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@ -26,6 +26,10 @@ kDHGRTitleDirectory
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!byte 4
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!raw "DHGR"
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kSHRArtworkDirectory
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!byte 3
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!raw "SHR"
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kAttractModeSlideshowDirectory
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!byte 2
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!raw "SS"
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@ -128,34 +128,54 @@ gAttractIndex
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!byte 0
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pla ; restore module type
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cmp #$01
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beq @HGRTitleSlideshow
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cmp #$02
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beq @HGRActionSlideshow
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asl
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tax
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lda @slideshows-2,x
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sta @jmp+1
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lda @slideshows-1,x
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sta @jmp+2
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@jmp jmp $FDFD ; SMC
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@slideshows
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!word HGRTitleSlideshow
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!word HGRActionSlideshow
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!word DHGRTitleSlideshow
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!word SHRArtworkSlideshow
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@DHGRTitleSlideshow
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HGRTitleSlideshow
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jsr LoadHGRTransition ; load transition effect code at $6000
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jsr okvs_iter ; cycle through all listed HGR files
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!word gSlideshowStore
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!word HGRTitleCallback ; address of callback (called on each file)
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rts ; exit with last picture still visible
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HGRActionSlideshow
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jsr LoadHGRTransition ; load transition effect code at $6000
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jsr okvs_iter ; cycle through all listed HGR files
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!word gSlideshowStore
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!word HGRActionCallback ; address of callback (called on each file)
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rts ; exit with last picture still visible
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DHGRTitleSlideshow
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bit MachineStatus ; only run DHGR slideshow if we have 128K
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bvc @exit
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jsr LoadDHGRTransition ; load transition effect code at $6000
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bvs +
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rts
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+ jsr LoadDHGRTransition ; load transition effect code at $6000
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jsr BlankDHGR ; switch to DHGR mode with initial blank screen
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jsr okvs_iter ; cycle through all listed DHGR files
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!word gSlideshowStore
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!word DHGRTitleCallback ; address of callback (called on each file)
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jmp BlankHGR ; switch back to HGR mode with initial blank screen on exit
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||||
|
||||
@HGRTitleSlideshow
|
||||
jsr LoadHGRTransition ; load transition effect code at $6000
|
||||
jsr okvs_iter ; cycle through all listed HGR files
|
||||
SHRArtworkSlideshow
|
||||
lda MachineStatus ; only run SHR slideshow on IIgs or if we have a VidHD card
|
||||
and #%00110000
|
||||
bne +
|
||||
rts
|
||||
+ jsr LoadSHRTransition
|
||||
jsr okvs_iter
|
||||
!word gSlideshowStore
|
||||
!word HGRTitleCallback ; address of callback (called on each file)
|
||||
@exit rts ; exit with last picture still visible
|
||||
|
||||
@HGRActionSlideshow
|
||||
jsr LoadHGRTransition ; load transition effect code at $6000
|
||||
jsr okvs_iter ; cycle through all listed HGR files
|
||||
!word gSlideshowStore
|
||||
!word HGRActionCallback ; address of callback (called on each file)
|
||||
rts ; exit with last picture still visible
|
||||
!word SHRArtworkCallback
|
||||
jmp BlankHGR
|
||||
|
||||
kAttractModeConfFile
|
||||
!byte @kAttractModeConfFile_e-*-1
|
||||
@ -386,7 +406,6 @@ HGRActionCallback
|
||||
|
||||
; in: A/Y contains address of filename (name only, path is always /DHGR/)
|
||||
; X contains 0-based index of the current record in gSlideshowStore
|
||||
; gGamesListStore must be initialized
|
||||
; out: all registers and flags clobbered
|
||||
; $0800..$1EFF preserved (this contains the gSlideshowStore OKVS data)
|
||||
; $2000..$BFFF clobbered by graphics data and transition code
|
||||
@ -415,7 +434,9 @@ DHGRTitleCallback
|
||||
|
||||
ExecuteTransition
|
||||
jsr $6000 ; call transition effect code to display picture
|
||||
; execution falls through here
|
||||
|
||||
WaitAfterTransition
|
||||
ldx #$20 ; picture is already showing so just wait
|
||||
- lda #0
|
||||
jsr WaitForKeyWithTimeout
|
||||
@ -424,6 +445,43 @@ ExecuteTransition
|
||||
bpl -
|
||||
+ rts
|
||||
|
||||
;------------------------------------------------------------------------------
|
||||
; SHRArtworkCallback
|
||||
; callback called by okvs_iter on gSlideshowStore
|
||||
; to load and display a single SHR graphic
|
||||
|
||||
; in: A/Y contains address of filename (name only, path is always /SHR/)
|
||||
; X contains 0-based index of the current record in gSlideshowStore
|
||||
; out: all registers and flags clobbered
|
||||
; $0800..$1EFF preserved (this contains the gSlideshowStore OKVS data)
|
||||
; $2000..$BFFF clobbered by graphics data and transition code
|
||||
; $2000..$5FFF/aux clobbered
|
||||
;------------------------------------------------------------------------------
|
||||
SHRArtworkCallback
|
||||
+STAY PTR
|
||||
|
||||
lda $C000
|
||||
bpl +
|
||||
rts
|
||||
+
|
||||
stx gCurrentlyVisibleSlideshowIndex
|
||||
|
||||
jsr BlankSHR
|
||||
|
||||
; load SHR artwork at $2000/main (not aux)
|
||||
jsr ResetPath
|
||||
+LDADDR kSHRArtworkDirectory
|
||||
jsr AddToPath
|
||||
+LDADDR kPathSeparator
|
||||
jsr AddToPath
|
||||
+LDAY PTR
|
||||
jsr AddToPath
|
||||
jsr LoadFile
|
||||
!word gPathname
|
||||
|
||||
jsr $A000
|
||||
jmp WaitAfterTransition
|
||||
|
||||
;------------------------------------------------------------------------------
|
||||
; LoadHGRTransition
|
||||
; looks up name of next HGR transition effect in FX.CONF and loads that file
|
||||
@ -487,8 +545,7 @@ gFXIndex
|
||||
rts
|
||||
@fxkey !word $FDFD
|
||||
kFXConfFile
|
||||
!byte @kFXConfFile_e-@kFXConfFile_b
|
||||
@kFXConfFile_b
|
||||
!byte @kFXConfFile_e-*-1
|
||||
!text "FX.CONF"
|
||||
@kFXConfFile_e
|
||||
|
||||
@ -555,11 +612,30 @@ gDFXIndex
|
||||
rts
|
||||
@dfxkey !word $FDFD
|
||||
kDFXConfFile
|
||||
!byte @kDFXConfFile_e-@kDFXConfFile_b
|
||||
@kDFXConfFile_b
|
||||
!byte @kDFXConfFile_e-*-1
|
||||
!text "DFX.CONF"
|
||||
@kDFXConfFile_e
|
||||
|
||||
;------------------------------------------------------------------------------
|
||||
; LoadSHGRTransition
|
||||
; [TODO] for now there is only 1 SHR transition so this always load the same file
|
||||
; [TODO] but eventually it should look up name of next SHR transition effect in
|
||||
; [TODO] SFX.CONF or something and loads that file at $A000
|
||||
;
|
||||
; in: gSFXStore has been initialized
|
||||
; gGlobalPrefsStore has been initialized
|
||||
; out: all registers and flags clobbered
|
||||
; $A000..$BFFF/main contains transition effect code
|
||||
;------------------------------------------------------------------------------
|
||||
LoadSHRTransition
|
||||
jsr LoadFile
|
||||
!word kSFXFizzleFile
|
||||
rts
|
||||
kSFXFizzleFile
|
||||
!byte @kSFXFizzleFile_e-*-1
|
||||
!text "FX/SHR.FIZZLE"
|
||||
@kSFXFizzleFile_e
|
||||
|
||||
;------------------------------------------------------------------------------
|
||||
; BlankHGR
|
||||
; clear and show HGR page 1 without flickering
|
||||
@ -599,6 +675,50 @@ BlankDHGR
|
||||
sta $c05e
|
||||
rts
|
||||
|
||||
;------------------------------------------------------------------------------
|
||||
; BlankSHR
|
||||
; clear and show SHR mode without flickering
|
||||
;
|
||||
; in: machine is a IIgs or has a VidHD card that responds appropriately to
|
||||
; IIgs-specific softswitches for graphics and memory modes
|
||||
; NOTE: THIS ROUTINE WILL CRASH ON AN APPLE //C due to writing $C029,
|
||||
; so it is imperative that the caller ensure the machine type
|
||||
; out: text page clobbered (but screen holes preserved)
|
||||
; $2000..$9FFF/aux cleared
|
||||
;------------------------------------------------------------------------------
|
||||
BlankSHR
|
||||
jsr Home
|
||||
|
||||
lda $C029 ; set GS NEWVIDEO mode to turn off linearize
|
||||
ora #$40
|
||||
sta $C029
|
||||
|
||||
sta $C005 ; writes go to auxmem
|
||||
|
||||
lda $C035 ; enable auxmem-to-bank-E1 shadowing on IIgs
|
||||
and #$F7
|
||||
sta $C035
|
||||
|
||||
lda #$20 ; clear $2000..$9FFF in auxmem
|
||||
sta @a+2
|
||||
ldx #$80
|
||||
lda #0
|
||||
tay
|
||||
@a sta $2000,y
|
||||
iny
|
||||
bne @a
|
||||
inc @a+2
|
||||
dex
|
||||
bne @a
|
||||
|
||||
sta $C004 ; writes go to main memory
|
||||
|
||||
lda $C029 ; set GS NEWVIDEO mode to turn on SHR mode
|
||||
ora #$81
|
||||
sta $C029
|
||||
|
||||
rts
|
||||
|
||||
;------------------------------------------------------------------------------
|
||||
; ClearHGR1
|
||||
; clear $2000..$3FFF in current memory bank (main or auxmem)
|
||||
@ -645,6 +765,13 @@ Home
|
||||
jsr $FB2F ; TEXT
|
||||
jsr $FC58 ; HOME
|
||||
+READ_RAM1_WRITE_RAM1
|
||||
lda MachineStatus
|
||||
and #%00110000
|
||||
beq @noSHR
|
||||
lda $C029
|
||||
and #$7F
|
||||
sta $C029 ; get out of SHR mode
|
||||
@noSHR
|
||||
rts
|
||||
@end
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user