View difference between Paste ID: a5qC9A6u and qbNJLXGA

-Another World Opcode List
+Another World File Formats
 (Based from RAW by Gregory Montoir, New RAW by Fabien Sanglard and from technical notes by Eric Chahi from Another World 15th Anniversary Disc)
-00 FF 00 04 00 F6 00 01 00 E3 00 00 00 32 00 00 06
+
-<bh:00><bh:ff><bh:00><bh:04><bh:00><bh:f6><bh:00><bh:01><bh:00><bh:e3><bh:00><bh:00><bh:00>2<bh:00><bh:00><bh:06>
+
 00 DD NNNN
-3f9fd
+(Variable = Imm16)
 
 Set	Vd, Vs
 01 DD SS
 (VariableDest = VariableSource)
 
 Add	Vd, Vs
 02 DD SS
 (VariableDest += VariableSource)
 
 Add.i	Vn, Imm16
 03 DD NNNN
 (Variable += Imm16)
 
 Jsr	Address
 04 AAAA
 
 return
 05
 
 break
 06
 
 Jmp	Address
 07 AAAA
 
 SetVec	Nb, Address
 08 VV AAAA
 (Vec = $FFFF; No code to run)
 
 dbra	Vn, Address
 09 VV AAAA
 (Go to Address if Variable != 0)
 
-Si Vn = Vn	Jmp Address
+
 If Vn = Vn	Jmp Address
 0A 80 VV WW AAAA
-Si Vn <> Vn	Jmp Address
+
 If Vn <> Vn	Jmp Address
 0A 81 VV WW AAAA
-Si Vn > Vn	Jmp Address
+
 If Vn > Vn	Jmp Address
 0A 82 VV WW AAAA
-Si Vn => Vn	Jmp Address
+
 If Vn => Vn	Jmp Address
 0A 83 VV WW AAAA
-Si Vn < Vn	Jmp Address
+
 If Vn < Vn	Jmp Address
 0A 84 VV WW AAAA
-Si Vn <= Vn	Jmp Address
+
 If Vn <= Vn	Jmp Address
 0A 85 VV WW AAAA
 
 
-Si Vn = Imm8	Jmp Address
+
 If Vn = Imm8	Jmp Address
 0A 00 VV WW AAAA
-Si Vn <> Imm8	Jmp Address
+
 If Vn <> Imm8	Jmp Address
 0A 01 VV WW AAAA
-Si Vn > Imm8	Jmp Address
+
 If Vn > Imm8	Jmp Address
 0A 02 VV WW AAAA
-Si Vn => Imm8	Jmp Address
+
 If Vn => Imm8	Jmp Address
 0A 03 VV WW AAAA
-Si Vn < Imm8	Jmp Address
+
 If Vn < Imm8	Jmp Address
 0A 04 VV WW AAAA
-Si Vn <= Imm8	Jmp Address
+
 If Vn <= Imm8	Jmp Address
 0A 05 VV WW AAAA
 
 
-Si Vn = Imm16	Jmp Address
+
 If Vn = Imm16	Jmp Address
 0A 40 VV WWWW AAAA
-Si Vn <> Imm16	Jmp Address
+
 If Vn <> Imm16	Jmp Address
 0A 41 VV WWWW AAAA
-Si Vn > Imm16	Jmp Address
+
 If Vn > Imm16	Jmp Address
 0A 42 VV WWWW AAAA
-Si Vn => Imm16	Jmp Address
+
 If Vn => Imm16	Jmp Address
 0A 43 VV WWWW AAAA
-Si Vn < Imm16	Jmp Address
+
 If Vn < Imm16	Jmp Address
 0A 44 VV WWWW AAAA
-Si Vn <= Imm16	Jmp Address
+
 If Vn <= Imm16	Jmp Address
 0A 45 VV WWWW AAAA
 
 
-0B NN 00?
+
 0B NN 00
 (Set Palette)
 
 Vec Start, End, Unlock
 0C SS EE 00
 (Unlock Vectors from Start to End)
 
 Vec Start, End, Lock
 0C SS EE 01
 (Lock Vectors from Start to End)
 
 Vec Start, End, Clean
 0C SS EE 02
 (Delete Vectors from Start to End)
 
 SetWS Nb
 0D NN
 (Select Work screen)
 
 Clr Nb, Color
 0E NN 0C
 (Clear screen with Color)
 
 Copy Ss Sd
 0F SS DD
 (Copy workscreen to another workscreen, see Screen Buffers for more info)
 
 Show NN
 10 NN
 (Show workscreen)
 
 Bigend
 11
 (break + current vector = $FFFF)
 
 Text TxtNb, X, Y, Color
 12 TTTT XX YY 0C
 (Show Text at X,Y with color)
 
 Sub Vd, Vs
 13 DD SS
 (VariableDest -= VariableSource)
 
 And.i Vn,Imm16
 14 VV IIII
 (Variable &= Imm16)
 
 Or.i Vn,Imm16
 15 VV IIII
 (Variable ^= Imm16)
 
 Lsl Vn, Imm16
 16 VV IIII
 (Variable <= Imm16)
 
 Lsr Vn, Imm16
 17 VV IIII
 (Variable >= Imm16)
 
 Play FileNb, Note, Volume, Channel
 18 FFFF NN VV CC
 (Play Sound at Note, Volume at one channel)
 
 Load FileNb
 19 FFFF
 (Load File number. If 0 then release the memory)
 
 Song FileNb, Tempo, Position
 1A FFFF TTTT PP
 (If file number and tempo = 0 then stop song)
 (If file number = 0 and tempo != than current tempo then change tempo of current song)
 
 
 Spr.s Addr, X, Y
 (80 || AA) AA XX YY
 
-[C0||Color] LL HH PP
+
 Spr.l Addr, X, Y, (Z)
 01XXYYZZb AAAA (XX)XX (YY)YY (ZZZZ)
-GM Format:
+
-02 RX RY NN
+
-CHHHHHHHb HH RX RY (MCCCCCCCb MM)
+
 3=11=No Z or X||100
-Screen Buffers:
+
 Exemples:
 Spr.l Addr, X16, Y16, Z16
 40 AAAA XXXX YYYY ZZZZ
 
 Spr.l Addr, X8, Y8, Z8
 6B AAAA XX YY ZZ
 
-Palette Format:
+
 55 AAAA VX VY VX
 
-Compression:
+
-Backwards.
+
-[18:51] <@Seru-kun> https://github.com/fabiensanglard/Another-World-Bytecode-Interpreter/blob/master/bank.cpp
+Header:
-[18:56] <@hcs> wow, yeah, that's pretty hard to read
+[C0||Pallette] HH VV PP
-[18:57] <@hcs> but it looks like the whole getCode, nextChunk, rcr thing is just pulling off bits
+(HH = Horizontal Size, VV = Vertical Size)
-[18:58] <@hcs> everything is run backwards, for whatever reason
+
-[18:59] <@hcs> storage mode is indicated by two or three bit prefixes, these are what the ifs starting at 93 do
+Points:
-[19:01] <@hcs> 00 is a string of literal bytes, the next three bits give the number-1, (that's the meaning of decUnk(8,0)
+
-[19:01] <@hcs> er, decUnk1(3,0)
+
-[19:02] <@hcs> decUnk2 looks like LZ77, with decUnk2(8) (prefix 01) you have a 8 bit backreference length
+
-[19:03] <@hcs> backref distance, rather
+Polygon Group Format:
-[19:04] <@hcs> prefix 01 only does 2 bytes, but it can be 1 to 256 bytes back
+Header:
-[19:05] <@hcs> notice how line 77 adds i, the backref distance, whereas most processing is done with decrements, so we're reaching back in the already decompressed data
+02 BX BY NN
-[19:06] <@hcs> The other prefixes are just different variations on the same theme, 111 is literals, 8 bit length + 8 + 1 (the second arg in decUnk1(8, 8) indicates an additional to the count)
+(BX = Horizontal Point Base, BY = Vertical Point Base)
-[19:06] <@hcs> *an addition
+
-[19:07] <@hcs> this nicely complements the decUnk1(3,0), which can give you up to 8, decUnk1(8,8) can give you from 9 to 255+9
+Group:
-[19:08] <@hcs> 110 is followed by an 8 bit backreference length (-1) with is used by decUnk(12), so there's also a 12 bit backreference distance
+CHHHHHHHb HH RX RY (APPPPPPPb) (MM)
-[19:09] <@hcs> 100 and 101 have a fixed length (3 and 4 respectively) and 9 or 10 bit backreference dists
+C = 0: Default Color
 C = 1: Color 4
 H = Group number (15-bit)
 RX = X relative
-Source Codes:
+RY = Y relative
-code0:
+A = Mask Flag Bit
 P = Pallette (only if C = 1)
-start	jsr	init
+MM = Mask (only if A = 1)
-	setvec	60	flip10
+
-	seti	v255	4
+
-	seti	v246	1
+Screen Buffers (workscreens):
-	seti	v227	0
+
-	seti	v50	0
+
-	break
+
-	play	106	20	0	2
+
-	play	106	20	0	3
+
-	play	106	20	0	1
+
-	play	106	20	0	0
+
-	jsr	initiz
+Special Screen copy (Source Screen byte only):
-	jsr	setmar
+10000SSb
-	jsr	inic
+SS = Screen Buffer (0 to 3)
-	jsr	mun1
+Copy Screen to Destination Screen at Vertical Position taken from Variable 249
-	setvec	20	nag1
+
-	setvec	21	nag2
+
-	setvec	20	mard1a
+Color Format:
-	seti	v99	2
+
-	si	v4	=	48	suit
+
 Color Number:
 0 to 15 = Plain colors
-code1:
+16 = Written to the last screen
 17 = Written to the first screen
-snes1	setvec	1	fdera1
+
-zic01	song	4025	0	1
+
-	setvec	2	derape
+Pallette Format:
-	setvec	3	plan1
+64 pallettes with 16 colors (32 bytes)
-	setvec	60	flip10
+64 * 32 = 2048.
-	bigend
+
-stopv	bigend
+First half is for Amiga
-flip1	addi	v199	1
+Last half is for other ports
-	show	255
+
-	setws	255
+Special Variables:
-	si	v250	<>	0	exit
+V60  = Random Seed
-	copy	64	255
+V218 = Keyboard Letter Key pressed (from 'a' to 'z' only)
-	break
+V229 = Joystick Vertical (0 = None; -1 = Up; 1 = Down)
-	jmp	flip1
+V244 = Used for Music Sync
-flip10	addi	v199	1
+V249 = Vertical Position for Copy (Can be used for vertical scrolling)
-	show	255
+V250 = Joystick Button (0 = Release; 1 = Hold)
-	setws	255
+V251 = Joystick Vertical (0 = None; -1 = Up; 1 = Down)
-	copy	0	255
+V252 = Joystick Horizontal (0 = None; -1 = Left; 1 = Right)
-	break
+V253 = Button Mask (0000UDLR)
-	addi	v199	1
+V254 = Button Mask 2 (B000UDLR)
 V255 = Game Speed