GBA SWI calls
-------------

SoftReset:				swi		0	00
SoftResetExram:			swi		0	00
SoftResetRom:			swi		0	00
RegisterRamReset:		swi		1	01
IntrWait:				swi		4	04
VBlankIntrWait:			swi		5	05
Div:					swi		6	06
DivArm:					swi		7	07
DivRem:					swi		6	06
DivRemArm:				swi		7	07
Sqrt:					swi		8	08
ArcTan:					swi		9	09
ArcTan2:				swi		10	0A
CpuSet:					swi		11	0B
CpuFastSet:				swi		12	0C
BgAffineSet:			swi		14	0E
ObjAffineSet:			swi		15	0F
BitUnPack:				swi		16	10
LZ77UnCompWram:			swi		17	11
LZ77UnCompVram:			swi		18	12
HuffUnComp:				swi		19	13
RLUnCompWram:			swi		20	14
RLUnCompVram:			swi		21	15
Diff8bitUnFilterWram:	swi		22	16
Diff8bitUnFilterVram:	swi		23	17
Diff16bitUnFilter:		swi		24	18
SoundBiasChange:		swi		25	19
SoundBiasReset:			swi		25	19
SoundBiasSet:			swi		25	19
SoundDriverInit:		swi		26	1A
SoundDriverMode:		swi		27	1B
SoundDriverMain:		swi		28	1C
SoundDriverVSync:		swi		29	1D
SoundChannelClear:		swi		30	1E
MidiKey2Freq:			swi		31	1F
MusicPlayerOpen:		swi		32	20
MusicPlayerStart:		swi		33	21
MusicPlayerStop:		swi		34	22
MusicPlayerContinue:	swi		35	23
MusicPlayerFadeOut:		swi		36	24
MultiBoot:				swi		37	25
SoundDriverVSyncOff:	swi		40	28
SoundDriverVSyncOn:		swi		41	29



ARM7 SWI calls
--------------

.text:00000000 SVC_SoftReset
.text:00000000                 SWI     0
.text:00000004 SVC_WaitByLoop
.text:00000004                 SWI     3
.text:00000008 SVC_WaitIntr
.text:0000000A                 SWI     4
.text:0000000E SVC_WaitVBlankIntr
.text:00000010                 SWI     5
.text:00000014 SVC_Halt
.text:00000014                 SWI     6
.text:00000018 SVC_Sleep
.text:00000034                 SWI     7
.text:0000004A SVC_ChangeSoundBias
.text:0000004A                 SWI     8
.text:0000004E SVC_SetSoundBias
.text:00000052                 SWI     8
.text:00000056 SVC_ResetSoundBias
.text:0000005A                 SWI     8
.text:0000005E SVC_Div
.text:0000005E                 SWI     9
.text:00000062 SVC_DivRem
.text:00000062                 SWI     9
.text:00000068 SVC_CpuSet
.text:00000068                 SWI     0xB
.text:0000006C SVC_CpuSetFast
.text:0000006C                 SWI     0xC
.text:00000070 SVC_Sqrt
.text:00000070                 SWI     0xD
.text:00000074 SVC_GetCRC16
.text:00000074                 SWI     0xE
.text:00000078 SVC_UnPackBits
.text:00000078                 SWI     0x10
.text:0000007C SVC_UnCompLZ77Byte
.text:0000007C                 SWI     0x11
.text:00000080 SVC_UnCompLZ77Short
.text:00000080                 SWI     0x12
.text:00000084 SVC_UnCompHuffman
.text:00000084                 SWI     0x13
.text:00000088 SVC_UnCompRLByte
.text:00000088                 SWI     0x14
.text:0000008C SVC_UnCompRLShort
.text:0000008C                 SWI     0x15
.text:00000090 SVC_GetSinTable
.text:00000090                 SWI     0x1A
.text:00000094 SVC_GetPitchTable
.text:00000094                 SWI     0x1B
.text:00000098 SVC_GetVolumeTable
.text:00000098                 SWI     0x1C

unknows
01		hangs
02		hangs
0A		hangs
0F		something		returns r3=0x027FFFE0
16		hangs
17		hangs
18		hangs
19		hangs
1D		something
1E		hangs
1F		nothing happens



ARM9 SWI calls
----------

SVC_SoftReset
                SWI     0
SVC_WaitByLoop
                SWI     3
SVC_WaitIntr
                MOV     R2, #0
                SWI     4
SVC_WaitVBlankIntr
                MOV     R2, #0
                SWI     5
SVC_Div
                SWI     9
SVC_DivRem
                SWI     9
SVC_CpuSet
                SWI     0xB
SVC_CpuSetFast
                SWI     0xC
SVC_Sqrt
                SWI     0xD
SVC_UnPackBits
                SWI     0x10
SVC_UnCompLZ77Byte
                SWI     0x11
SVC_UnCompLZ77Short
                SWI     0x12
SVC_UnCompHuffman
                SWI     0x13
SVC_UnCompRLByte
                SWI     0x14
SVC_UnCompRLShort
                SWI     0x15