super:data_maps:rom_map:bank80 [MetConst Wiki]

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<code>
______             _      _____ _____
| ___ \           | |    |  _  |  _  |
| |_/ / __ _ _ __ | | __  \ V /| |/' |
| ___ \/ _` | '_ \| |/ /  / _ \|  /| |
| |_/ / (_| | | | |   <  | |_| \ |_/ /
\____/ \__,_|_| |_|_|\_\ \_____/\___/
</code>
Data - 000000/007FFF - Common routines

|$80|8000-8001 [data] Skip NTSC/PAL and SRAM mapping check|
|$80|8002-8003 [data] Demo recorder|
|$80|8004-8005 [data] Debug mode|
|$80|8006-8007 [data] Debug scrolling|
|$80|8008-8009 [data] Something for the audio man|
|$80|800A-8027 Load new music (parameter after call)|
|$80|8028-8058 Load new music (parameter in $00)|
|$80|8059-80FF Process music data|
|$80|8100-8110 Increment Y (once or twice), bank overflow check|
|$80|8111-8145 Random number generator|
|$80|8146-818D ???|
|$80|818E-81A5 Change nth bit to address offset and mask|
|$80|81A6-81BF Set boss bits in A for current area ($7E:D828,X)|
|$80|81C0-81DB Clear boss bits in A for current area ($7E:D828,X)|
|$80|81DC-81F9 Checks if the boss bits for the current area matches any bits in A. SEC if there's a match|
|$80|81FA-8211 Marks an event as happened. Event bit # must be stored in A|
|$80|8212-8232 Marks an event as not happened. Event bit # must be stored in A|
|$80|8233-824E Checks if an event has happened. Event bit # must be stored in A. CLC if 0, SEC if 1|
|$80|824F-8260 Write 'supermetroid' to SRAM ($70:1FE0..1FEB)|
|$80|8261-82AC Check for non-corrupt SRAM|
|$80|82AD-82B8 [data] 'madadameyohn' garbage written if there's corrupt SRAM|
|$80|82B9-82C4 [data] 'supermetroid' written to SRAM|
|$80|82C5-82D5 Wait until the end of a VBlank|
|$80|82D6-8337 Multiplies A and Y together (16-bit * 16-bit). Result in $05F1-$05F4|
|$80|8338-834A Wait for IRQ|
|$80|834B-835C Enable NMI with $84 options|
|$80|835D-836E Disable NMI with $84 options|
|$80|836F-8381 Set force blank|
|$80|8382-8394 Clear force blank|
|$80|8395-83BC DMA, slot 1, 200h bytes from $7E:C000 through $2122 (CGRAM Data Write)|
|$80|83BD-83CF 8-bit write Y bytes of A to $00:X|
|$80|83D0-83E2 16-bit write Y bytes of A to $00:X|
|$80|83E3-83F5 8-bit write Y bytes of A to $7E:X|
|$80|83F6-8408 16-bit write Y bytes of A to $7E:X|
|$80|8409-841B 16-bit write Y bytes of A to $7F:X|
|$80|841C-8461 Boot|
|$80|8462-8081 Soft reset|
|$80|8482-8572 Game initialisation|
|$80|8573-8576 Infinite loop; pointed to by misc. error handling|
|$80|8577-858B Wait A many IRQs|
|$80|858C-85B5 Load mirror of current area's map explored|
|$80|85C6-85F5 Mirror current area's map explored|
|$80|85F6-875C NTSC/PAL and SRAM mapping check|
|$80|875D-8791 Initialise $4200..420D|
|$80|8792-88B3 Initialise $2100..2133|
|$80|88B4-88D0 Clear high RAM|
|$80|88D1-88EA Write a load of 1C2Fh|
|$80|88EB-88FD Write 800h bytes of A to $7E:3000|
|$80|88FE-8910 Write 800h bytes of A to $7E:4000|
|$80|8911-8923 Write 800h bytes of A to $7E:6000|
|$80|8924-894C Handle fading out|
|$80|894D-896D Handle fading in|
|$80|896E-8B19 Clear unused OAM (sprites to Y=F0h), clear OAM data offset|
|$80|8B1A-8B4E Clear all OAM high-x bits and sizes|
|$80|8B4F-8BB9 Unpack mode 7 DMAs|
|$80|8BBA-8BD2 Handle mode 7 DMAs|
|$80|8BD3-8C82 Handle mode 7 DMAs continued|
|$80|8C83-8CD7 Process $D0,X VRAM writes|
|$80|8CD8-8DAB Execute horizontal scrolling DMAs|
|$80|8DAC-8EA1 Execute vertical scrolling DMAs|
|$80|8EA2-8EF3 Handle $0340,X VRAM reads|
|$80|8EF4-8F0B Check for command timer|
|$80|8F0C-8FA2 ???|
|$80|8FA3-8FC0 ???|
|$80|8FC1-8FF6 Changes music song/instruments or music track to A, with an 8-frame delay. Makes sure 0639 does not lap 063B|
|$80|8FF7-9020 Changes music song/instruments or music track to A, with a Y-frame delay (minimum of 8). Does not stop 0639 from lapping 063B|
|$80|9021-902A Sound library 1, $0653 = 0Fh|
|$80|902B-9034 Sound library 1, $0653 = 09h|
|$80|9035-903E Sound library 1, $0653 = 03h|
|$80|903F-9048 Sound library 1, $0653 = 01h|
|$80|9049-9050 Sound library 1, $0653 = 06h|
|$80|9051-90A2 Sound library 1|
|$80|90A3-90AC Sound library 2, $0653 = 0Fh|
|$80|90AD-90B6 Sound library 2, $0653 = 09h|
|$80|90B7-90C0 Sound library 2, $0653 = 03h|
|$80|90C1-90CA Sound library 2, $0653 = 01h|
|$80|90CB-90D2 Sound library 2, $0653 = 06h|
|$80|90D3-9124 Sound library 2|
|$80|9125-912E Sound library 3, $0653 = 0Fh|
|$80|912F-9138 Sound library 3, $0653 = 09h|
|$80|9139-9142 Sound library 3, $0653 = 03h|
|$80|9143-914C Sound library 3, $0653 = 01h|
|$80|914D-9154 Sound library 3, $0653 = 06h|
|$80|9155-91A6 Sound library 3|
|$80|91A7-91A8 NOP : RTS|
|$80|91A9-91ED Set up a (H)DMA transfer|
|$80|91EE-9339 Update hardware registers|
|$80|933A-9375 Update OAM & CGRAM|
|$80|9376-9415 Samus' graphics -> VRAM|
|$80|9416-9458 Handle misc. animations (spikes, FX1)|
|$80|9459-9582 Read controller input.  Also a debug branch|
|$80|9583-9615 NMI|
|$80|9616-9631 [data] Interrupt commands|
|$80|9632-966D DMA transfer to VRAM|
|$80|966E-967F Interrupt command 00h. Next interrupt command = [$A7]|
|$80|9680-968A Interrupt command 02h. Disable horizontal and vertical timer interrupts|
|$80|968B-96A8 Interrupt command 04h. Main gameplay, status bar drawing|
|$80|96A9-96D2 Interrupt command 06h. Main gameplay, status bar drawn|
|$80|96D3-96F0 Interrupt command 08h. Start of room transition, status bar drawing|
|$80|96F1-9719 Interrupt command 0Ah. Start of room transition, status bar drawn|
|$80|971A-9732 Interrupt command 0Ch. Draygon's room, status bar drawing|
|$80|9733-9757 Interrupt command 0Eh. Draygon's room, status bar drawn|
|$80|9758-9770 Interrupt command 10h. Vertical room transition, status bar drawing|
|$80|9771-97A8 Interrupt command 12h. Vertical room transition, screen drawing|
|$80|97A9-97C0 Interrupt command 14h. Vertical room transition, screen drawn|
|$80|97C1-97D9 Interrupt command 16h. Horizontal room transition, status bar drawing|
|$80|97DA-9809 Interrupt command 18h. Horizontal room transition, screen drawing|
|$80|980A-9829 Interrupt command 1Ah. Horizontal room transition, screen drawn|
|$80|982A-9840 Enable horizontal and vertical timer interrupts|
|$80|9841-985E Enable horizontal and vertical timer interrupts now|
|$80|985F-9869 Disable horizontal and vertical timer interrupts|
|$80|986A-988A IRQ|
|$80|988B-98CA [data] HUD tilemap - top row, never changed|
|$80|98CB-998A [data] HUD tilemap - item selector background|
|$80|998B-9996 [data] HUD tilemap - auto reserve|
|$80|9997-99A2 [data] HUD tilemap - empty auto reserve|
|$80|99A3-99AE [data] HUD tilemap - missiles|
|$80|99AF-99B6 [data] HUD tilemap - super missiles|
|$80|99B7-99BE [data] HUD tilemap - power bombs|
|$80|99BF-99C6 [data] HUD tilemap - grapple|
|$80|99C7-99CE [data] HUD tilemap - x-ray|
|$80|99CF-9A0D Add missiles to HUD WRAM tilemap|
|$80|9A0E-9A1D Add super missiles to HUD WRAM tilemap|
|$80|9A1E-9A2D Add power bombs to HUD WRAM tilemap|
|$80|9A2E-9A3D Add grapple to HUD WRAM tilemap|
|$80|9A3E-9A4B Add x-ray to HUD WRAM tilemap|
|$80|9A4C-9A78 Add to HUD WRAM tilemap|
|$80|9A79-9B43 HUD routine when game is loading|
|$80|9B44-9CCD HUD routine when game is paused/running|
|$80|9CCE-9CE9 [data] Energy tank icon WRAM tilemap offsets|
|$80|9CEA-9D6D Toggle HUD item highlight|
|$80|9D6E-9D77 [data] Item WRAM tilemap offsets|
|$80|9D78-9D97 Draw three HUD digits|
|$80|9D98-9DBE Draw two HUD digits|
|$80|9DBF-9DD2 [data] HUD digits tilemap values - Health|
|$80|9DD3-9DE6 [data] HUD digits tilemap values - Artillery|
|$80|9DE7-9DFA Process timer|
|$80|9DFB-9E08 [data] Pointers to timer code|
|$80|9E09-9E1B Ceres start timer|
|$80|9E1C-9E2E Mother Brain start timer|
|$80|9E2F-9E40 Delay timer running/movement|
|$80|9E41-9E57 Run timer, delay movement|
|$80|9E58-9E8B Move timer, still running|
|$80|9E8C-9E92 Set timer to A_high minutes and A_low seconds|
|$80|9E93-9EA8 Clear timer RAM|
|$80|9EA9-9EEB Finally stop timer movement, still running|
|$80|9EEC-9F6B [data] Timer centisecond decrements|
|$80|9F6C-9F94 Draw timer|
|$80|9F95-9FB0 Draw timer section|
|$80|9FB3-9DF3 Draw timer spritemap|
|$80|9FD4-9FE7 [data] Timer digits spritemap pointers|
|$80|9FE8-A05F [data] Timer digits spritemaps|
|$80|A060-A07A [data] Timer TIME spritemap|
|$80|A07B-A12A ???|
|$80|A12B-A148|
|$80|A149-A175|
|$80|A176-A1E2|
|$80|A1E3-A210 Add VRAM $4800..57FF = 0338h|
|$80|A211-A23E Add VRAM $5880..677F = 184Eh|
|$80|A23F-A29B VRAM $4800..4FFF = 3838h|
|$80|A29C-A2F8 VRAM $5880..5FFF = 184Eh|
|$80|A2F9-A339 Calculate layer 2 X position|
|$80|A33A-A37A Calculate layer 2 Y position|
|$80|A37B-A39F Calculate BG positions|
|$80|A3A0-A3AA Updates only BG1 when scrolling, I think|
|$80|A3AB-A4BA Updates BG1 and BG2 graphics when scrolling|
|$80|A4BB-A527 Calculate blocks scrolled|
|$80|A528-A640 Handle autoscrolling when not moving horizontally and part of the screen is has no scroll|
|$80|A641-A6BA Handle scrolling when moving and triggered scrolling right|
|$80|A6BB-A730 Handle scrolling when moving and triggered scrolling left|
|$80|A731-A892 Handle autoscrolling when not moving vertically and part of the screen is has no scroll|
|$80|A893-A935 Handle scrolling when moving and triggered scrolling down|
|$80|A936-A9AB Handle scrolling when moving and triggered scrolling up|
|$80|A9AC-A9D5 Debug scroll position save/loading|
|$80|A9D6-ABDA Update background data block|
|$80|A9DB-AB6F Update level data block|
|$80|AB70-AB74 Update a block in Layer 2 / BG2|
|$80|AB75-AD1C Update a block in Layer 1 / BG1|
|$80|AD1D-AD2F Run to 'Fix' doors moving up; redraws top row of blocks|
|$80|AD30-AD49 Follow door transition|
|$80|AD4A-AD73 Door transition - right|
|$80|AD74-AD9D Door transition - left|
|$80|AD9E-ADC7 Door transition - down|
|$80|ADC8-AE07 Door transition - up|
|$80|AE08-AE0F [data] Pointers to door transition code|
|$80|AE10-AE28 Save number of blocks scrolled|
|$80|AE29-AE4D Update BG scroll offsets|
|$80|AE4E-AE75 Follow door transition|
|$80|AE76-AE7D [data] Pointers to door transition code|
|$80|AE7E-AEC1 Door transition - right|
|$80|AEC2-AF01 Door transition - left|
|$80|AF02-AF88 Door transition - down|
|$80|AF89-B031 Door transition - up|
|$80|B032-B0C1 Unused. Mode 7 initialisation?|
|$80|B0C2-B0FE Configure mode 7 rotation matrix|
|$80|B0FF-B118 Decompression to [PC+3]|
|$80|B119-B265 Decompression|
|$80|B266-B270 Source bank overflow correction|
|$80|B271-B436 Decompression to VRAM|
|$80|B437-BC36 [data] Tilemap for failed NTSC/PAL check|
|$80|BC37-C436 [data] Tilemap for failed SRAM mapping check|
|$80|C437-C4B4 Load new save/elevator|
|$80|C4B5-C4C4 [data] Pointers to each area's saves/elevators|
|$80|C4C5-C5CE [data] Crateria saves/elevators|
|$80|C5CF-C6C8 [data] Brinstar saves/elevators|
|$80|C6D9-C81A [data] Norfair saves/elevators|
|$80|C81B-C916 [data] Wrecked Ship saves/elevators|
|$80|C917-CA2E [data] Maridia saves/elevators|
|$80|CA2F-CB2A [data] Tourian saves/elevators|
|$80|CB2B-CC18 [data] Ceres saves/elevators|
|$80|CC19-CD06 [data] Debug saves/elevators|
|$80|CD07-CD45 Set elevators as used|
|$80|CD46-CD51 [data] Pointers to each area's elevator bits|
|$80|CD52-CD65 [data] Crateria elevator bits|
|$80|CD66-CD75 [data] Brinstar elevator bits|
|$80|CD76-CD81 [data] Norfair elevator bits|
|$80|CD82-CD85 [data] Maridia elevator bits|
|$80|CD86-CD89 [data] Tourian elevator bits|
|$80|CD8A-CD8D [data] Wrecked Ship elevator bits|
|$80|CD8E-FFBF Free space|
|$80|FFC0-FFFF [data] Game header|
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