mirror of
https://github.com/a2-4am/passport.git
synced 2024-12-22 19:30:50 +00:00
add support for Methods and Solutions RWTS swapper, JSR 08B3 bootloader
This commit is contained in:
4am
parent
398e849f8b
commit
74cc71b644
@ -133,7 +133,9 @@ IDBootloader
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;
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jsr ID8b3
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bcs .not8b3
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jmp found8b3
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lda #s_jsr8b3
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jsr PrintByID
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jmp Trace8B3
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.not8b3
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;
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@ -45,33 +45,4 @@ ID8b3
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!byte $C6,$01,$A9,$08,$C5,$01,$D0,$EC
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!byte $60
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rts
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found8b3
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tya
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pha
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ldy #$0F
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lda #$00
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A8b3 sta T00,y
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dey
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bpl A8b3
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ldy #$0B
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B8b3 sta T02,y
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iny
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cpy #$10
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bne B8b3
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pla
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tay
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lda #$4C
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sta $085A
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lda #<Inspect1_8b3
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sta $085B
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lda #>Inspect1_8b3
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sta $085C
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lda #$60
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sta $08CC
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lda #$2C
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sta $083F
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sta $0842
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sta $0845
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jmp $0801
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}
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@ -15,6 +15,15 @@ TraceDOS33
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sta gTrack
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lda #$09
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sta gSector
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;
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; This pre-check is made more difficult by the fact that
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; some disks have a timing bit after the $D5 nibble in
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; the address prologue, which triggers the wrong code path
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; in our built-in RWTS. So just for this pre-check, we
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; disable that code path. This hack will get overwritten
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; either by the disk's own RWTS when we capture it, or by
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; re-copying the built-in RWTS later.
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;
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lda #$F0
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sta $B959
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lda #$05
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@ -28,9 +37,9 @@ precheck
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+
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dec gSector
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bne precheck
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;
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; pre-check passed, do the trace
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;
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lda #<TraceDOS33b
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ldx #>TraceDOS33b
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jmp Trace
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@ -145,14 +154,6 @@ _Inspect1a
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sta T02S05
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+ jmp ADStyle ; use this RWTS to read the disk
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; TODO this doesn't belong here
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Inspect1_8b3
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jsr WriteTrack
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lda $08FE
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clc
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adc #$01
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jmp _Inspect1a
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;-------------------------------
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; Trace
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; common code for all boot tracers
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110
src/id/trace8b3.a
Normal file
110
src/id/trace8b3.a
Normal file
@ -0,0 +1,110 @@
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;-------------------------------
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; Trace8B3
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; set up 1st-level boot trace on
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; a bootloader that calls $08B3
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; on first run to alter nibble table
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; for rest of track 0
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;-------------------------------
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!zone {
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Trace8B3
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lda #<Trace8B3b
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ldx #>Trace8B3b
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jmp Trace
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;-------------------------------
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; Trace8B3b
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; set up 2nd boot trace at $084A
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;-------------------------------
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Trace8B3b
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lda $085A
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sta _restore1+1
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lda $085B
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sta _restore2+1
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lda $085C
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sta _restore3+1
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lda #$4C
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sta $085A
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lda #<Trace8B3c
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sta $085B
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lda #>Trace8B3c
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sta $085C
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lda #$2C ; disable calls to
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sta $083F ; TEXt/PR0/IN0
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sta $0842
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sta $0845
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lda #$60 ; disable memory wipe
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sta $08CC
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jmp $0801
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Trace8B3c
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;
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; Need to write out track 0 now because the built-in RWTS
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; won't be able to read it later.
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;
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lda $C0E8 ; turn off source drive
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;
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; Restore the original code in memory before continuing
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;
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lda #$B6
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sta $B6FE
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lda #$09
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sta $B6FF
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lda #$20
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sta $B63F
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sta $B642
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sta $B645
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lda #$A9
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sta $B6CC
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_restore1
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lda #$d1 ; set at runtime (in Trace8B3b)
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sta $B65A
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_restore2
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lda #$d1 ; set at runtime (in Trace8B3b)
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sta $B65B
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_restore3
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lda #$d1 ; set at runtime (in Trace8B3b)
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sta $B65C
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;
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; Copy track into buffer from writing
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;
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jsr ClearTSBuffer
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lda #$B6
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ldx #$10
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ldy #$0A
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jsr CopyMemory
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;
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; Manually write out track 0 (with patches)
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;
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jsr IncProgress
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lda #$00
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sta gTrack
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jsr AnalyzeTrack
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jsr ReorderLogicalToPhysical ; bootloader expects sectors in physical sector order
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jsr WriteTrackNA
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;
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; Mark track 0 and part of track 2 as "skip" in sector map
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;
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ldy #$0F
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lda #$00
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- sta T00,y
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dey
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bpl -
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ldy #$0B
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- sta T02,y
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iny
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cpy #$10
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bne -
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;
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; Set up RWTS entry point
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;
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lda #$00
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sta callrwts+1
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lda #$BD
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sta callrwts+2
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;
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; Read the rest of the disk with the original RWTS
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;
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lda #$01
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sta gLastTrack
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jmp ADStyle
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}
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80
src/memory.a
80
src/memory.a
@ -151,3 +151,83 @@ SwapProDOS
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ldy #$01
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jsr SwapMemory
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rts
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;-------------------------------
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; ReorderLogicalToPhysical - reorder pages in
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; track data buffer for disks that expect
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; sectors in physical sector order
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;
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; 1 -> 7
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; 2 -> E
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; 3 -> 6
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; 4 -> D
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;
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; 6 -> C
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; 7 -> 4
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; 8 -> B
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; 9 -> 3
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;
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; B -> 2
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; C -> 9
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; D -> 1
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; E -> 8
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;
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; 0123456789ABCDEF
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; 07E6D5C4B3A2918F
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; in: track buffer has data in logical sector order
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; out: A,Y clobbered
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; X preserved
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;-------------------------------
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!zone {
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ReorderLogicalToPhysical
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ldy #$00
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- lda $1100,y
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pha
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lda $1200,y
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pha
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lda $1300,y
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pha
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lda $1400,y
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pha
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lda $1600,y
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pha
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lda $1700,y
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pha
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lda $1800,y
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pha
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lda $1900,y
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pha
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lda $1b00,y
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pha
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lda $1c00,y
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pha
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lda $1d00,y
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pha
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lda $1e00,y
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sta $1800,y
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pla
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sta $1100,y
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pla
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sta $1900,y
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pla
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sta $1200,y
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pla
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sta $1300,y
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pla
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sta $1b00,y
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pla
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sta $1400,y
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pla
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sta $1c00,y
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pla
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sta $1d00,y
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pla
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sta $1600,y
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pla
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sta $1e00,y
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pla
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sta $1700,y
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iny
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bne -
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rts
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}
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@ -94,7 +94,7 @@ flag = $FF ; byte
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}
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; Application constants (not zero addresses)
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RELBASE = $6500 ; address to move Passport code
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RELBASE = $6300 ; address to move Passport code
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; so that it's out of the way
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LOWPOINT = $4300 ; lowest available address for code
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BASEPAGE = $10 ; Special Delivery tracer assumes
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@ -142,6 +142,7 @@ FirstMover
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!source "id/trace.a"
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!source "id/dos33.a"
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!source "id/jsr8b3.a"
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!source "id/trace8b3.a"
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!source "id/mecc.a"
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!source "id/datasoft.a"
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!source "id/protecteddos.a"
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@ -692,6 +693,8 @@ _applyToT00
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!source "patchers/diskvol.a"
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!source "patchers/c9ff.a"
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!source "patchers/milliken.a"
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!source "patchers/methods.a"
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!source "patchers/jsr8b3.a"
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_applyToAll
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!source "patchers/universale7.a"
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!source "patchers/runhello.a"
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42
src/patchers/jsr8b3.a
Normal file
42
src/patchers/jsr8b3.a
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@ -0,0 +1,42 @@
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;-------------------------------
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; #JSR8B3
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; patch insane bootloader that
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; alters the nibble table used
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; by the drive firmware, reads
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; sectors in the wrong order,
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; and decodes nibbles in the
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; wrong order
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; e.g. English Achievement I
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;-------------------------------
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!zone {
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jsr ID8b3
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bcs .exit
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bcc +
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.sectors
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!byte $00,$00,$02,$02,$02,$02,$02,$02,$02,$02
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.offsets
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!byte $02,$5C,$0A,$0E,$10,$20,$25,$CA,$CE,$D2
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.values
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!byte $C7,$B7,$BC,$BC,$00,$BC,$BC,$00,$BC,$BC
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+ lda #$09
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sta .loop+1
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ldx #$B8
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ldy #$10
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jsr modify
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!byte $00,$0D,$0B,$09,$07,$05,$03,$01
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!byte $0E,$0C,$0A,$08,$06,$04,$02,$0F
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.loop ldy #$d1
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lda .values,y
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sta .value
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lda .sectors,y
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ldx .offsets,y
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ldy #$01
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jsr modify
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.value !byte $d1
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dec .loop+1
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bpl .loop
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.exit
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}
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56
src/patchers/methods.a
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56
src/patchers/methods.a
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@ -0,0 +1,56 @@
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;-------------------------------
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; #METHODS
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; RWTS changes prologue with RWTS
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; swapper at $B6B4
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; e.g. "Alphabetizing: Blue Level"
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; and others by Methods & Solutions
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;-------------------------------
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!zone {
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_methods
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lda gIsBoot0 ; if DOS 3.3 boot0 loader
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bne .exit
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lda #$08
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ldx #$5A
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ldy #$03
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jsr compare ; and T00,S08,$5A ==
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!byte $4C,$B4,$36; JMP $36B4
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bcs .exit
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lda #$00
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ldx #$B4
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ldy #$1A
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jsr compare ; and T00,S00,$B4 ==
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!byte $48 ; PHA
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!byte $68 ; PLA
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!byte $48 ; PHA
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!byte $F0,$06 ; BEQ +$06
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!byte $A9,WILDCARD; LDA #$**
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!byte $A0,WILDCARD; LDY #$**
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!byte $D0,$04 ; BNE +$04
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!byte $A9,$D5 ; LDA #$D5
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!byte $A0,$AA ; LDY #$AA
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!byte $8D,$55,$39; STA $3955
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!byte $8C,$5F,$39; STY $395F
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!byte $A0,$01 ; LDY #$01
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!byte $4C,$5D,$3E; JMP $3E5D
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bcs .exit
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sta gDisplayBytes
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lda #s_bytrack
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jsr PrintByID
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lda #$00
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ldx #$BD
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ldy #$01
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jsr modify ; then set T00,S00,$BD =
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!byte $24 ; BIT
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lda #$01
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ldx #$47
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ldy #$03
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jsr compare ; if T00,S01,$47 ==
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!byte $4C,$CE,$36; JMP $36CE
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bcs .exit
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lda #$01
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ldx #$48
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ldy #$01
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jsr modify ; then set T00,S01,$48 =
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!byte $D8
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.exit
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}
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@ -91,7 +91,8 @@ s_eeef = $48
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s_poke = $49
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s_bootcounter = $4A
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s_milliken = $4B
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STRINGCOUNT = $4C
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s_jsr8b3 = $4C
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STRINGCOUNT = $4D
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!zone {
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StringTable
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@ -171,6 +172,7 @@ StringTable
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!word .poke
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!word .bootcounter
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!word .milliken
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!word .jsr8b3
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;
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; Text can contain substitution strings, which
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; are replaced by current values at runtime. Each
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@ -196,7 +198,7 @@ StringTable
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; can be set directly before calling PrintByID.
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;
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.header
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!text "Passport by 4am 2017-04-18",00
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!text "Passport by 4am 2017-05-01",00
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.mainmenu
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!text "________________________________________",$8D,$8D,$8D,$8D,$8D,$8D,$8D
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!text " "
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@ -437,4 +439,6 @@ StringTable
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.milliken
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!text "T00,S0A Found Milliken protection check",$8D
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!text "T02,S05 might be unreadable",$8D,00
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.jsr8b3
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!text "T00,S00 Found JSR $08B3 bootloader",$8D,00
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}
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