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more in LC RAM2
This commit is contained in:
Peter Ferrie
parent
ec637fe9ba
commit
11fb880be9
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@ -83,10 +83,6 @@ RestoreStackNextTime
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!source "src/glue.font.a"
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; add new files above here so ui.common stays last
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!source "src/ui.common.a"
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MachineStatus
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!byte 0
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GameCount
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!byte 0
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gAttractModeStore
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gFXStore
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gDFXStore
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@ -241,6 +241,7 @@ OneTimeSetup
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cpy #$03
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bcc @outer
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+READ_RAM2_WRITE_RAM2
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ldx #5
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- lda Prelaunch,x ; copy reentry wrapper to bottom of stack
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sta $100,x ; (used as reset vector because ][+ always
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@ -194,65 +194,4 @@ Launch
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dex
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bpl -
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jmp $106 ; jump to pre-launch code
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;------------------------------------------------------------------------------
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; Prelaunch
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; code to set up and launch third-party code (either a self-running demo or
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; an actual game)
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; THIS IS NOT A FUNCTION. DO NOT CALL THIS DIRECTLY.
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; must be run from main memory
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; contains multiple entry points
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;
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; in: for first entry point, none
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; for second entry point, the game must already be loaded in memory
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; and ldrlo2/ldrhi2 must be the game entry point
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; out: exits via JMP (ldrlo2), which is expected to exit via JMP |Prelaunch|
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; (not here, but wherever it was copied to in main memory) or by
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; manually enabling LC RAM then JMP |Reenter|
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;------------------------------------------------------------------------------
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Prelaunch
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; copied to $0100 in main memory
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; main entry point to return to launcher (used by self-running demos, vectors)
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+READ_RAM1_NO_WRITE
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jmp Reenter
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!if * != Prelaunch+6 {
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!error "Prelaunch entry points are messed up"
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}
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; copied to $0106 in main memory
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; main entry point to launch game
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+READ_ROM_NO_WRITE
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lda ldrlo2 ; set up game entry point in stack page
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ldy ldrhi2 ; (last load address - 1)
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sec
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sbc #$01
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bcs +
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dey
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+
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+STAY $1FE
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ldx #0 ; wipe zero page
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txa
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- sta $00,x
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inx
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bne -
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lda #$65 ; Initialize 'random' seed. These are
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sta RNDSEED ; arbitrary values. Some games like Pooyan
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lda #$02 ; require these to be non-zero. Ask me
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sta RNDSEED+1 ; how long that one took to debug.
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jsr ROM_IN0 ; Initialize machine like a cold boot.
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jsr ROM_PR0 ; Many games assume a 'clean slate' and
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jsr ROM_NORMAL ; rely on zero page values set by these
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sta STOREOFF ; ROM routines,
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sta READMAINMEM ; e.g. Wavy Navy just prints out text via
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sta WRITEMAINMEM ; $FDED and expects it to work. Having it
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sta CLR80VID ; print all null characters is amusing, in
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sta PRIMARYCHARSET ; a quiet way, but not really helpful.
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jsr ROM_TEXT
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jsr ROM_HOME
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bit CLEARKBD
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ldx #$FD ; Jump to game entry point via stack pop.
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txs
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rts
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End_Prelaunch
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}
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@ -1,5 +1,5 @@
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;license:MIT
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;(c) 2019 by qkumba
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;(c) 2019 by 4am & qkumba
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;
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; Pseudo-ProDOS environment
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;
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@ -647,3 +647,63 @@ SaveSmallFileInternal
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sta reqcmd
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sta sizelo ; non-zero
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jmp hddopendir ; exit via ProRWTS2 (must re-open the file after query)
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;------------------------------------------------------------------------------
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; Prelaunch
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; code to set up and launch third-party code (either a self-running demo or
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; an actual game)
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; THIS IS NOT A FUNCTION. DO NOT CALL THIS DIRECTLY.
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; must be run from main memory
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; contains multiple entry points
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;
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; in: for first entry point, none
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; for second entry point, the game must already be loaded in memory
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; and ldrlo2/ldrhi2 must be the game entry point
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; out: exits via JMP (ldrlo2), which is expected to exit via JMP |Prelaunch|
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; (not here, but wherever it was copied to in main memory) or by
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; manually enabling LC RAM then JMP |Reenter|
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;------------------------------------------------------------------------------
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Prelaunch
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; copied to $0100 in main memory
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; main entry point to return to launcher (used by self-running demos, vectors)
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+READ_RAM1_NO_WRITE
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jmp Reenter
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!if * != Prelaunch+6 {
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!error "Prelaunch entry points are messed up"
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}
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; copied to $0106 in main memory
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; main entry point to launch game
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+READ_ROM_NO_WRITE
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lda ldrlo2 ; set up game entry point in stack page
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ldy ldrhi2 ; (last load address - 1)
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sec
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sbc #$01
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bcs +
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dey
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+
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+STAY $1FE
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ldx #0 ; wipe zero page
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txa
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- sta $00,x
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inx
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bne -
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lda #$65 ; Initialize 'random' seed. These are
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sta RNDSEED ; arbitrary values. Some games like Pooyan
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lda #$02 ; require these to be non-zero. Ask me
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sta RNDSEED+1 ; how long that one took to debug.
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jsr ROM_IN0 ; Initialize machine like a cold boot.
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jsr ROM_PR0 ; Many games assume a 'clean slate' and
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jsr ROM_NORMAL ; rely on zero page values set by these
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sta STOREOFF ; ROM routines,
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sta READMAINMEM ; e.g. Wavy Navy just prints out text via
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sta WRITEMAINMEM ; $FDED and expects it to work. Having it
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sta CLR80VID ; print all null characters is amusing, in
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sta PRIMARYCHARSET ; a quiet way, but not really helpful.
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jsr ROM_TEXT
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jsr ROM_HOME
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bit CLEARKBD
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ldx #$FD ; Jump to game entry point via stack pop.
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txs
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rts
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End_Prelaunch
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@ -219,32 +219,42 @@ RunAttractModule
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pla ; restore module type
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- and #$0F ; convert ASCII digit to int
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asl
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tax
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lda @slideshows-2,x
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lda @slideshowslo-1,x
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sta @jmp+1
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lda @slideshows-1,x
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lda @slideshowshi-1,x
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sta @jmp+2
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+LDAY @key ; pass in module name
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@jmp jmp $FDFD ; SMC
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@dispatchSingle
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clc
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adc #$06
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adc #(@singleslo-@slideshowslo)-1
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bne - ; always branches
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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 DHGRActionSlideshow
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!word SHRSlideshow
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!word GRActionSlideshow
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@singles
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!word HGRSingle
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!word DHGRSingle
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!word SHRSingle
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!word GRSingle
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@slideshowslo
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!byte <HGRTitleSlideshow
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!byte <HGRActionSlideshow
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!byte <DHGRTitleSlideshow
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!byte <DHGRActionSlideshow
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!byte <SHRSlideshow
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!byte <GRActionSlideshow
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@singleslo
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!byte <HGRSingle
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!byte <DHGRSingle
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!byte <SHRSingle
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!byte <GRSingle
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@slideshowshi
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!byte >HGRTitleSlideshow
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!byte >HGRActionSlideshow
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!byte >DHGRTitleSlideshow
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!byte >DHGRActionSlideshow
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!byte >SHRSlideshow
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!byte >GRActionSlideshow
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@singleshi
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!byte >HGRSingle
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!byte >DHGRSingle
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!byte >SHRSingle
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!byte >GRSingle
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LoadAndParseAttractModeConf
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; TODO refactor launch code then make this private
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@ -66,7 +66,8 @@ BrowseMode
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ldx BrowseSelectedIndex
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cpx #$FF
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bne @notTooSmall
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ldx GameCount
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GameCount = *+1
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ldx #$D1 ; SMC
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dex
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bne @done ; always branches
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@notTooSmall
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@ -259,7 +259,8 @@ SoftBell
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; out: $0106..$011F clobbered
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;------------------------------------------------------------------------------
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Home
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lda MachineStatus
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MachineStatus = *+1
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lda #$D1 ; SMC
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and #SUPPORTS_SHR
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beq @noSHR
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lda NEWVIDEO
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