Instructions
Each opcode is 1 byte in size.
0x00 - 0x7F
Memory, Move, Function operators
0x00 - 0x3F
00xx nnnn
x = intermediate size (1 = 1 byte, 2 = 2 byte, 3 = 4 byte)
n = command
| Opcode |
Code |
Description
|
| 0x13 |
0001 0011 nnnnnnnn |
Writes n somewhere
|
| 0x18 - 0x1F |
0001 1xxx nnnnnnnn |
Execute the n function in set
|
| 0x28 - 0x2F |
0010 1xxx nnnnnnnn nnnnnnnn |
Execute the n function in set
|
| 0x15 |
0001 0101 nnnnnnnn |
Jumps by the amount of n
|
| 0x25 |
0010 0101 nnnnnnnn nnnnnnnn |
Jumps by the amount of n
|
| 0x35 |
0011 0101 nnnnnnnn nnnnnnnn nnnnnnnn nnnnnnnn |
Jumps by the amount of n
|
0x40 - 0x7F
Intermediate value reading.
01xx ddnn
x = intermediate size (1 = 1 byte, 2 = 2 byte, 3 = 4 byte)
d = command
n = subcommand
| Opcode |
Code |
Description
|
| 0x50 - 0x5F |
0101 xxxx nnnnnnnn |
Writes n somewhere(stack?) (1 byte)
|
| 0x60 - 0x6F |
0110 xxxx nnnnnnnn nnnnnnnn |
Writes n somewhere(stack?) (2 byte)
|
| 0x70 - 0x7F |
0111 xxxx nnnnnnnn nnnnnnnn nnnnnnnn nnnnnnnn |
Writes n somewhere(stack?) (4 byte)
|
0x80 - 0xBF (0x80 - 0xA6)
Arithmetic, Comparision/Relational, Logical, Bitwise, Compound assignment operators
| Opcode |
Code |
Description
|
| 0x80 |
1000 0000 |
Read
|
| 0x81 |
1000 0001 |
Write
|
| 0x82 |
1000 0010 |
MOBJ accessor?
|
| 0x83 |
1000 0011 |
MOBJ accessor?
|
| 0x84 |
1000 0100 |
MOBJ accessor?
|
| 0x85 |
1000 0101 |
MOBJ accessor?
|
| 0x86 |
1000 0110 |
MOBJ accessor?
|
| 0x87 |
1000 0111 |
MOBJ accessor?
|
| 0x88 |
1000 1000 |
!=
|
| 0x89 |
1000 1001 |
!=
|
| 0x8A |
1000 1010 |
>=
|
| 0x8B |
1000 1011 |
>
|
| 0x8C |
1000 1100 |
<=
|
| 0x8D |
1000 1101 |
<
|
| 0x8E |
1000 1110 |
~
|
| 0x8F |
1000 1111 |
&=
|
| 0x90 |
1001 0000 |
=
|
| 0x91 |
1001 0001 |
^=
|
| 0x92 |
1001 0010 |
+=
|
| 0x93 |
1001 0011 |
-=
|
| 0x94 |
1001 0100 |
*=
|
| 0x95 |
1001 0101 |
/=
|
| 0x96 |
1001 0110 |
%=
|
| 0x97 |
1001 0111 |
<<=
|
| 0x98 |
1001 1000 |
>>=
|
| 0x9D |
1001 1101 |
float cast
|
| 0x9E |
1001 1110 |
signed cast
|
| 0x9F |
1001 1111 |
<=
|
| 0xA0 |
1010 0000 |
<
|
| 0xA1 |
1010 0001 |
>= (<= inverted)
|
| 0xA2 |
1010 0010 |
> (< inverted)
|
| 0xA3 |
1010 0011 |
+
|
| 0xA4 |
1010 0100 |
-
|
| 0xA5 |
1010 0101 |
*
|
| 0xA6 |
1010 0110 |
/
|
0xC0 - 0xFF
Invalid
Function Sets
| Position |
Function Count |
Description
|
| 140559C98 |
1 |
Set 1 - Removed function
|
| 140559CA0 |
5 |
Set 2 - Memory functions (unused)
|
| 140559CD0 |
466 |
Set 3 - General Shenmue stuff
|
| 140A4F1E0 |
1 |
Set 4 - Unknown
|
| 140A4F1E8 |
1 |
Set 5 - Unknown
|
| 140A4F1F0 |
47 |
Set 6 - SCNF stuff
|
| 140554210 |
8 |
Set 7 - Unknown
|
Function Set (140559CA0)
| Function |
Description
|
| deleted |
?
|
| memset |
memset
|
| memcpy |
memcpy
|
| strcpy |
strcpy
|
| sub_14018FFE0 |
Reads 140EB1B30
|
Function Set (140559CD0)
| Function |
Description
|
| sub_140190350 |
|
| sub_14009B750 |
|
| sub_14009B790 |
|
| sub_14009B830 |
|
| sub_1401905B0 |
|
| sub_140177D30 |
|
| sub_1401B8460 |
|
| sub_14009B890 |
|
| sub_140190BC0 |
|
| sub_140190630 |
|
| sub_1401919B0 |
|
| sub_140191B60 |
|
| sub_1401953F0 |
|
| sub_140192370 |
|
| sub_140193750 |
|
| deleted |
|
| sub_1401937A0 |
|
| sub_1401937C0 |
|
| sub_1401938F0 |
|
| sub_140193920 |
|
| sub_140193980 |
|
| sub_140193990 |
|
| sub_1401939A0 |
|
| sub_140193A00 |
|
| sub_140194B70 |
|
| sub_140194E00 |
|
| sub_1401950F0 |
|
| sub_140195380 |
|
| sub_140195AB0 |
|
| sub_1401954A0 |
|
| sub_140195550 |
|
| sub_140196160 |
|
| sub_1401972C0 |
|
| sub_1401972D0 |
|
| sub_1401973E0 |
|
| sub_140197450 |
|
| sub_1401974F0 |
|
| sub_1402CBD90 |
|
| sub_1401AB600 |
|
| sub_1401ABE60 |
|
| sub_1401ADEF0 |
|
| sub_1401AE230 |
|
| sub_1401AE3A0 |
|
| sub_1401AE730 |
|
| sub_1401AE8A0 |
|
| sub_1401B4210 |
|
| sub_1401B7270 |
|
| sub_1401B7450 |
|
| sub_1401B8100 |
|
| sub_1401B8150 |
|
| sub_1401B8250 |
|
| sub_1401975F0 |
|
| sub_1401976A0 |
|
| sub_140191D10 |
|
| sub_140192000 |
|
| sub_1401ACE20 |
|
| deleted |
|
| deleted |
|
| deleted |
|
| sub_1401A8EF0 |
|
| sub_1401A8F20 |
|
| sub_1401A9000 |
|
| sub_1401A9080 |
|
| sub_1401AE0C0 |
|
| sub_1401B4500 |
|
| sub_1401AE6B0 |
|
| sub_140195C90 |
|
| sub_140193A80 |
|
| sub_1401B55D0 |
|
| sub_1401977A0 |
|
| sub_1401A2EE0 |
|
| sub_1401A34C0 |
|
| sub_1401B7470 |
|
| sub_1401B7530 |
|
| sub_1401B75B0 |
|
| sub_1401C1E10 |
|
| sub_140190D30 |
|
| sub_1401ADC20 |
|
| sub_140190A90 |
|
| sub_14018FA80 |
|
| sub_140198720 |
|
| sub_1401B4550 |
|
| sub_1401B45C0 |
|
| sub_1401B4650 |
|
| sub_1401B4660 |
|
| sub_1401BED00 |
|
| sub_1401BED30 |
|
| sub_1401BEDC0 |
|
| sub_1401BEDE0 |
|
| sub_140194530 |
|
| sub_1401BEE40 |
|
| sub_1401BEE50 |
|
| sub_1401978E0 |
|
| sub_1401ACE90 |
|
| sub_1401B8370 |
|
| sub_1401B8390 |
|
| sub_140191CD0 |
|
| sub_1401AAE20 |
|
| sub_1401AAE10 |
|
| sub_1401AAC00 |
|
| sub_1401AAC70 |
|
| sub_1401AACE0 |
|
| sub_1401AAE30 |
|
| sub_1401AAE70 |
|
| sub_1401AAEA0 |
|
| sub_140195DB0 |
|
| sub_1401B78D0 |
|
| sub_1401B7C00 |
|
| sub_140193C00 |
|
| sub_1401B7620 |
|
| sub_140194D20 |
|
| sub_140193D00 |
|
| sub_1401962B0 |
|
| sub_1401B7770 |
|
| sub_1401ABF20 |
|
| sub_1401AC1E0 |
|
| deleted |
|
| sub_1401AE9A0 |
|
| sub_1400A9420 |
|
| sub_1400A9430 |
|
| sub_1400A9440 |
|
| sub_1400A9450 |
|
| sub_1400A9460 |
|
| sub_1400A9470 |
|
| sub_1400A9480 |
|
| sub_1400A94A0 |
|
| ... |
|
Function Set (140A4F1F0)
| Function |
Description
|
| sub_140191580 |
|
| sub_1401915C0 |
|
| sub_1401A8DC0 |
|
| sub_1401A8E60 |
|
| sub_14000F380 |
|
| sub_14000F380 |
|
| sub_1401A9240 |
|
| sub_1401A92A0 |
|
| sub_1401A9440 |
|
| sub_1401A9460 |
|
| sub_1401A9470 |
|
| sub_1401A94D0 |
|
| sub_1401916A0 |
|
| sub_1401916A0 |
|
| sub_1401A91D0 |
|
| sub_1401A9200 |
|
| sub_140196560 |
|
| sub_140196760 |
|
| sub_1401A9190 |
|
| sub_1401A91B0 |
|
| sub_1401966A0 |
|
| sub_140196760 |
|
| sub_1401A9520 |
|
| sub_1401A9570 |
|
| sub_1401A9590 |
|
| sub_1401A95C0 |
|
| sub_1401A9150 |
|
| sub_1401A9170 |
|
| sub_1401A94D0 |
|
| sub_1401A9470 |
|
| sub_1401A9240 |
|
| sub_1401A92A0 |
|
| sub_1401A9240 |
|
| sub_1401A92A0 |
|
| sub_1401A92C0 |
|
| sub_1401A9380 |
|
| sub_1401A9B50 |
|
| sub_1401A9BB0 |
|
| sub_1401A9460 |
|
Function Set (140554210)
| Function |
Description
|
| sub_14019F120 |
|
| sub_14019F3D0 |
|
| sub_14019F330 |
|
| sub_1401A1EB0 |
|
| sub_1401A1F20 |
|
| sub_1401A1F90 |
|
| sub_14006D3F0 |
|
| sub_14000F380 |
|