60 lines
1.5 KiB
NASM
60 lines
1.5 KiB
NASM
!add = "clc : adc"
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!sub = "sec : sbc"
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!bge = "bcs"
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!blt = "bcc"
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; Free RAM notes
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; Normal doors use $AB-AC for scrolling indicator
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; Normal doors use $FE to store the trap door indicator
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; Spiral doors use $045e to store stair type
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; Gfx uses $b1 to for sub-sub-sub-module thing
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; Hooks into various routines
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incsrc drhooks.asm
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;Main Code
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org $278000 ;138000
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incsrc normal.asm
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incsrc spiral.asm
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incsrc gfx.asm
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incsrc keydoors.asm
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incsrc overrides.asm
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incsrc edges.asm
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incsrc math.asm
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warnpc $279000
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; Data Section
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org $279000
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OffsetTable:
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dw -8, 8
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DRMode:
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dw 0
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DRFlags:
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dw 0
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DRScroll:
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db 0
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; Vert 0,6,0 Horz 2,0,8
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org $279010
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CoordIndex: ; Horizontal 1st
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db 2, 0 ; Coordinate Index $20-$23
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OppCoordIndex:
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db 0, 2 ; Swapped coordinate Index $20-$23 (minor optimization)
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CameraIndex: ; Horizontal 1st
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db 0, 6 ; Camera Index $e2-$ea
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CamQuadIndex: ; Horizontal 1st
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db 8, 0 ; Camera quadrants $600-$60f
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ShiftQuadIndex:
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db 2, 1 ; see ShiftQuad func (relates to $a9,$aa)
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CamBoundIndex: ; Horizontal 1st
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db 0, 4 ; Camera Bounds $0618-$61f
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OppCamBoundIndex: ; Horizontal 1st
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db 4, 0 ; Camera Bounds $0618-$61f
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CamBoundBaseLine: ; X camera stuff is 1st column todo Y camera needs more testing
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dw $007f, $0077 ; Left/Top camera bounds when at edge or layout frozen
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dw $0007, $000b ; Left/Top camera bounds when not frozen + appropriate low byte $22/$20 (preadj. by #$78/#$6c)
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dw $00ff, $010b ; Right/Bot camera bounds when not frozen + appropriate low byte $20/$22
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dw $017f, $0187 ; Right/Bot camera bound when at edge or layout frozen
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incsrc doortables.asm
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