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util

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This commit is contained in:
PikalaxALT
2019-05-03 17:02:57 -04:00
parent ee839a3cd9
commit 58aa02b87a
5 changed files with 518 additions and 512 deletions
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asm/util.s
-500
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@@ -1,500 +0,0 @@
.include "asm/macros.inc"
.include "constants/constants.inc"
.syntax unified
.text
thumb_func_start CreateInvisibleSpriteWithCallback
CreateInvisibleSpriteWithCallback: @ 8044EF8
push {r4-r6,lr}
adds r6, r0, 0
ldr r0, _08044F2C @ =gUnknown_825E4DC
movs r1, 0xF8
movs r2, 0xA8
movs r3, 0xE
bl CreateSprite
lsls r0, 24
lsrs r0, 24
ldr r5, _08044F30 @ =gSprites
lsls r2, r0, 4
adds r2, r0
lsls r2, 2
adds r3, r2, r5
adds r3, 0x3E
ldrb r1, [r3]
movs r4, 0x4
orrs r1, r4
strb r1, [r3]
adds r5, 0x1C
adds r2, r5
str r6, [r2]
pop {r4-r6}
pop {r1}
bx r1
.align 2, 0
_08044F2C: .4byte gUnknown_825E4DC
_08044F30: .4byte gSprites
thumb_func_end CreateInvisibleSpriteWithCallback
thumb_func_start StoreWordInTwoHalfwords
StoreWordInTwoHalfwords: @ 8044F34
strh r1, [r0]
lsrs r1, 16
strh r1, [r0, 0x2]
bx lr
thumb_func_end StoreWordInTwoHalfwords
thumb_func_start LoadWordFromTwoHalfwords
LoadWordFromTwoHalfwords: @ 8044F3C
ldrh r2, [r0]
movs r3, 0x2
ldrsh r0, [r0, r3]
lsls r0, 16
orrs r2, r0
str r2, [r1]
bx lr
thumb_func_end LoadWordFromTwoHalfwords
thumb_func_start SetBgAffineStruct
SetBgAffineStruct: @ 8044F4C
push {r4-r7,lr}
mov r7, r8
push {r7}
ldr r4, [sp, 0x18]
ldr r5, [sp, 0x1C]
ldr r6, [sp, 0x20]
ldr r7, [sp, 0x24]
mov r8, r7
str r1, [r0]
str r2, [r0, 0x4]
strh r3, [r0, 0x8]
strh r4, [r0, 0xA]
strh r5, [r0, 0xC]
strh r6, [r0, 0xE]
mov r1, r8
strh r1, [r0, 0x10]
pop {r3}
mov r8, r3
pop {r4-r7}
pop {r0}
bx r0
thumb_func_end SetBgAffineStruct
thumb_func_start DoBgAffineSet
DoBgAffineSet: @ 8044F78
push {r4-r6,lr}
mov r6, r8
push {r6}
sub sp, 0x24
mov r8, r0
ldr r0, [sp, 0x38]
ldr r4, [sp, 0x3C]
ldr r5, [sp, 0x40]
ldr r6, [sp, 0x44]
lsls r6, 16
lsrs r6, 16
lsls r3, 16
asrs r3, 16
lsls r0, 16
asrs r0, 16
str r0, [sp]
lsls r4, 16
asrs r4, 16
str r4, [sp, 0x4]
lsls r5, 16
asrs r5, 16
str r5, [sp, 0x8]
str r6, [sp, 0xC]
add r0, sp, 0x10
bl SetBgAffineStruct
add r0, sp, 0x10
mov r1, r8
movs r2, 0x1
bl BgAffineSet
add sp, 0x24
pop {r3}
mov r8, r3
pop {r4-r6}
pop {r0}
bx r0
thumb_func_end DoBgAffineSet
thumb_func_start CopySpriteTiles
CopySpriteTiles: @ 8044FC4
push {r4-r7,lr}
mov r7, r10
mov r6, r9
mov r5, r8
push {r5-r7}
sub sp, 0x3C
str r2, [sp, 0x20]
adds r4, r3, 0
ldr r7, [sp, 0x5C]
lsls r0, 24
lsls r1, 24
ldr r2, _0804504C @ =gUnknown_825E4F4
lsrs r1, 23
lsrs r0, 21
adds r1, r0
adds r0, r2, 0x1
adds r0, r1, r0
ldrb r0, [r0]
str r0, [sp, 0x24]
adds r1, r2
ldrb r1, [r1]
str r1, [sp, 0x28]
movs r1, 0
cmp r1, r0
bcc _08044FF8
b _0804517A
_08044FF8:
movs r0, 0x20
ldr r2, [sp, 0x28]
subs r0, r2
lsls r0, 1
str r0, [sp, 0x2C]
_08045002:
movs r2, 0
adds r1, 0x1
str r1, [sp, 0x34]
ldr r3, [sp, 0x28]
cmp r2, r3
bcc _08045010
b _08045168
_08045010:
ldr r0, _08045050 @ =0x040000d4
mov r8, r0
_08045014:
ldrh r1, [r4]
ldr r0, _08045054 @ =0x000003ff
ands r0, r1
lsls r0, 5
mov r12, r0
movs r0, 0xC0
lsls r0, 4
ands r0, r1
mov r3, sp
strh r1, [r3, 0x38]
cmp r0, 0
bne _0804505C
ldr r0, [sp, 0x20]
add r0, r12
mov r1, r8
str r0, [r1]
str r7, [r1, 0x4]
ldr r3, _08045058 @ =0x84000008
str r3, [r1, 0x8]
ldr r0, [r1, 0x8]
adds r4, 0x2
str r4, [sp, 0x30]
adds r7, 0x20
mov r10, r7
adds r2, 0x1
mov r9, r2
b _08045156
.align 2, 0
_0804504C: .4byte gUnknown_825E4F4
_08045050: .4byte 0x040000d4
_08045054: .4byte 0x000003ff
_08045058: .4byte 0x84000008
_0804505C:
movs r1, 0x80
lsls r1, 4
cmp r0, r1
bne _080450AC
movs r3, 0
adds r4, 0x2
str r4, [sp, 0x30]
movs r0, 0x20
adds r0, r7
mov r10, r0
adds r2, 0x1
mov r9, r2
ldr r4, _080450A4 @ =0x040000d4
ldr r6, _080450A8 @ =0x84000001
movs r5, 0x7
_0804507A:
lsls r2, r3, 24
asrs r2, 24
subs r0, r5, r2
lsls r0, 2
add r0, r12
ldr r1, [sp, 0x20]
adds r0, r1, r0
lsls r1, r2, 2
adds r1, r7, r1
str r0, [r4]
str r1, [r4, 0x4]
str r6, [r4, 0x8]
ldr r0, [r4, 0x8]
adds r2, 0x1
lsls r2, 24
lsrs r3, r2, 24
asrs r2, 24
cmp r2, 0x7
ble _0804507A
b _08045156
.align 2, 0
_080450A4: .4byte 0x040000d4
_080450A8: .4byte 0x84000001
_080450AC:
movs r3, 0
adds r4, 0x2
str r4, [sp, 0x30]
movs r0, 0x20
adds r0, r7
mov r10, r0
adds r2, 0x1
mov r9, r2
_080450BC:
movs r2, 0
lsls r4, r3, 24
lsls r0, r4, 2
lsrs r0, 24
adds r6, r0, 0x3
mov r1, r12
adds r5, r1, r0
_080450CA:
lsls r1, r2, 24
asrs r1, 24
subs r0, r6, r1
mov r2, sp
adds r3, r2, r0
adds r0, r5, r1
ldr r2, [sp, 0x20]
adds r0, r2, r0
ldrb r2, [r0]
movs r0, 0xF
ands r0, r2
lsls r0, 4
lsrs r2, 4
orrs r0, r2
strb r0, [r3]
adds r1, 0x1
lsls r1, 24
lsrs r2, r1, 24
asrs r1, 24
cmp r1, 0x3
ble _080450CA
movs r3, 0x80
lsls r3, 17
adds r0, r4, r3
lsrs r3, r0, 24
asrs r0, 24
cmp r0, 0x7
ble _080450BC
movs r0, 0x80
lsls r0, 4
mov r1, sp
ldrh r1, [r1, 0x38]
ands r0, r1
cmp r0, 0
beq _08045148
movs r3, 0
ldr r4, _08045140 @ =0x040000d4
ldr r6, _08045144 @ =0x84000001
movs r5, 0x7
_08045118:
lsls r1, r3, 24
asrs r1, 24
subs r0, r5, r1
lsls r0, 2
mov r3, sp
adds r2, r3, r0
lsls r0, r1, 2
adds r0, r7, r0
str r2, [r4]
str r0, [r4, 0x4]
str r6, [r4, 0x8]
ldr r0, [r4, 0x8]
adds r1, 0x1
lsls r1, 24
lsrs r3, r1, 24
asrs r1, 24
cmp r1, 0x7
ble _08045118
b _08045156
.align 2, 0
_08045140: .4byte 0x040000d4
_08045144: .4byte 0x84000001
_08045148:
mov r0, sp
mov r1, r8
str r0, [r1]
str r7, [r1, 0x4]
ldr r2, _0804518C @ =0x84000008
str r2, [r1, 0x8]
ldr r0, [r1, 0x8]
_08045156:
ldr r4, [sp, 0x30]
mov r7, r10
mov r3, r9
lsls r0, r3, 24
lsrs r2, r0, 24
ldr r0, [sp, 0x28]
cmp r2, r0
bcs _08045168
b _08045014
_08045168:
ldr r1, [sp, 0x2C]
adds r4, r1
ldr r2, [sp, 0x34]
lsls r0, r2, 24
lsrs r1, r0, 24
ldr r3, [sp, 0x24]
cmp r1, r3
bcs _0804517A
b _08045002
_0804517A:
add sp, 0x3C
pop {r3-r5}
mov r8, r3
mov r9, r4
mov r10, r5
pop {r4-r7}
pop {r0}
bx r0
.align 2, 0
_0804518C: .4byte 0x84000008
thumb_func_end CopySpriteTiles
thumb_func_start CountTrailingZeroBits
CountTrailingZeroBits: @ 8045190
push {lr}
adds r2, r0, 0
movs r1, 0
movs r3, 0x1
_08045198:
adds r0, r2, 0
ands r0, r3
cmp r0, 0
beq _080451A4
adds r0, r1, 0
b _080451B2
_080451A4:
lsrs r2, 1
adds r0, r1, 0x1
lsls r0, 24
lsrs r1, r0, 24
cmp r1, 0x1F
bls _08045198
movs r0, 0
_080451B2:
pop {r1}
bx r1
thumb_func_end CountTrailingZeroBits
thumb_func_start CalcCRC16
CalcCRC16: @ 80451B8
push {r4-r7,lr}
adds r7, r0, 0
adds r4, r1, 0
ldr r2, _080451E8 @ =0x00001121
movs r3, 0
cmp r3, r4
bcs _08045204
movs r6, 0x1
ldr r0, _080451EC @ =0x00008408
adds r5, r0, 0
_080451CC:
adds r0, r7, r3
ldrb r0, [r0]
eors r2, r0
movs r1, 0
adds r3, 0x1
_080451D6:
adds r0, r2, 0
ands r0, r6
cmp r0, 0
beq _080451F0
lsrs r0, r2, 1
eors r0, r5
lsls r0, 16
lsrs r2, r0, 16
b _080451F2
.align 2, 0
_080451E8: .4byte 0x00001121
_080451EC: .4byte 0x00008408
_080451F0:
lsrs r2, 1
_080451F2:
adds r0, r1, 0x1
lsls r0, 16
lsrs r1, r0, 16
cmp r1, 0x7
bls _080451D6
lsls r0, r3, 16
lsrs r3, r0, 16
cmp r3, r4
bcc _080451CC
_08045204:
mvns r0, r2
lsls r0, 16
lsrs r0, 16
pop {r4-r7}
pop {r1}
bx r1
thumb_func_end CalcCRC16
thumb_func_start CalcCRC16WithTable
CalcCRC16WithTable: @ 8045210
push {r4-r6,lr}
adds r5, r0, 0
adds r4, r1, 0
ldr r2, _0804524C @ =0x00001121
movs r3, 0
cmp r3, r4
bcs _0804523E
ldr r6, _08045250 @ =gUnknown_825E50C
_08045220:
lsrs r1, r2, 8
adds r0, r5, r3
ldrb r0, [r0]
eors r2, r0
lsls r0, r2, 24
lsrs r0, 23
adds r0, r6
ldrh r0, [r0]
adds r2, r0, 0
eors r2, r1
adds r0, r3, 0x1
lsls r0, 16
lsrs r3, r0, 16
cmp r3, r4
bcc _08045220
_0804523E:
mvns r0, r2
lsls r0, 16
lsrs r0, 16
pop {r4-r6}
pop {r1}
bx r1
.align 2, 0
_0804524C: .4byte 0x00001121
_08045250: .4byte gUnknown_825E50C
thumb_func_end CalcCRC16WithTable
thumb_func_start CalcByteArraySum
CalcByteArraySum: @ 8045254
push {r4,lr}
adds r4, r0, 0
movs r3, 0
movs r2, 0
cmp r3, r1
bcs _0804526C
_08045260:
adds r0, r4, r2
ldrb r0, [r0]
adds r3, r0
adds r2, 0x1
cmp r2, r1
bcc _08045260
_0804526C:
adds r0, r3, 0
pop {r4}
pop {r1}
bx r1
thumb_func_end CalcByteArraySum
.align 2, 0 @ Don't pad with nop.
data/data.s
+2 -10
View File
@@ -553,17 +553,9 @@ gSineTable:: @ 825E074
gUnknown_825E2F4:: @ 825E2F4
.incbin "baserom.gba", 0x25E2F4, 0x168
gBitTable:: @ 825E45C
.incbin "baserom.gba", 0x25E45C, 0x80
.section .rodata.825EF0C
gUnknown_825E4DC:: @ 825E4DC
.incbin "baserom.gba", 0x25E4DC, 0x18
gUnknown_825E4F4:: @ 825E4F4
.incbin "baserom.gba", 0x25E4F4, 0x18
gUnknown_825E50C:: @ 825E50C
.incbin "baserom.gba", 0x25E50C, 0xA00
.incbin "baserom.gba", 0x25E70C, 0x800
gUnknown_825EF0C:: @ 825EF0C
.incbin "baserom.gba", 0x25EF0C, 0x8E8
include/util.h
+1 -1
View File
@@ -12,7 +12,7 @@ u8 CreateInvisibleSpriteWithCallback(void (*)(struct Sprite *));
void StoreWordInTwoHalfwords(u16 *, u32);
void LoadWordFromTwoHalfwords(u16 *, u32 *);
int CountTrailingZeroBits(u32 value);
u16 CalcCRC16(const u8 *data, s32 length);
u16 CalcCRC16(const u8 *data, u32 length);
u16 CalcCRC16WithTable(const u8 *data, u32 length);
u32 CalcByteArraySum(const u8* data, u32 length);
void BlendPalette(u16 palOffset, u16 numEntries, u8 coeff, u16 blendColor);
ld_script.txt
+3 -1
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@@ -79,7 +79,7 @@ SECTIONS {
asm/pokemon_3.o(.text);
asm/trig.o(.text);
src/random.o(.text);
asm/util.o(.text);
src/util.o(.text);
asm/blend_palette.o(.text);
asm/daycare.o(.text);
asm/egg_hatch.o(.text);
@@ -363,6 +363,8 @@ SECTIONS {
src/bg_regs.o(.rodata);
src/string_util.o(.rodata);
data/data.o(.rodata);
src/util.o(.rodata);
data/data.o(.rodata.825EF0C);
data/connections.o(.rodata);
src/fieldmap.o(.rodata);
src/metatile_behavior.o(.rodata);
src/util.c
+512
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@@ -0,0 +1,512 @@
#include "global.h"
#include "util.h"
const u32 gBitTable[] =
{
1 << 0,
1 << 1,
1 << 2,
1 << 3,
1 << 4,
1 << 5,
1 << 6,
1 << 7,
1 << 8,
1 << 9,
1 << 10,
1 << 11,
1 << 12,
1 << 13,
1 << 14,
1 << 15,
1 << 16,
1 << 17,
1 << 18,
1 << 19,
1 << 20,
1 << 21,
1 << 22,
1 << 23,
1 << 24,
1 << 25,
1 << 26,
1 << 27,
1 << 28,
1 << 29,
1 << 30,
1 << 31,
};
static const struct SpriteTemplate gInvisibleSpriteTemplate =
{
.tileTag = 0,
.paletteTag = 0,
.oam = &gDummyOamData,
.anims = gDummySpriteAnimTable,
.images = NULL,
.affineAnims = gDummySpriteAffineAnimTable,
.callback = SpriteCallbackDummy,
};
static const u8 sSpriteDimensions[3][4][2] =
{
// square
{
{1, 1},
{2, 2},
{4, 4},
{8, 8},
},
// horizontal rectangle
{
{2, 1},
{4, 1},
{4, 2},
{8, 4},
},
// vertical rectangle
{
{1, 2},
{1, 4},
{2, 4},
{4, 8},
},
};
static const u16 gCrc16Table[] =
{
0x0000, 0x1189, 0x2312, 0x329B, 0x4624, 0x57AD, 0x6536, 0x74BF,
0x8C48, 0x9DC1, 0xAF5A, 0xBED3, 0xCA6C, 0xDBE5, 0xE97E, 0xF8F7,
0x1081, 0x0108, 0x3393, 0x221A, 0x56A5, 0x472C, 0x75B7, 0x643E,
0x9CC9, 0x8D40, 0xBFDB, 0xAE52, 0xDAED, 0xCB64, 0xF9FF, 0xE876,
0x2102, 0x308B, 0x0210, 0x1399, 0x6726, 0x76AF, 0x4434, 0x55BD,
0xAD4A, 0xBCC3, 0x8E58, 0x9FD1, 0xEB6E, 0xFAE7, 0xC87C, 0xD9F5,
0x3183, 0x200A, 0x1291, 0x0318, 0x77A7, 0x662E, 0x54B5, 0x453C,
0xBDCB, 0xAC42, 0x9ED9, 0x8F50, 0xFBEF, 0xEA66, 0xD8FD, 0xC974,
0x4204, 0x538D, 0x6116, 0x709F, 0x0420, 0x15A9, 0x2732, 0x36BB,
0xCE4C, 0xDFC5, 0xED5E, 0xFCD7, 0x8868, 0x99E1, 0xAB7A, 0xBAF3,
0x5285, 0x430C, 0x7197, 0x601E, 0x14A1, 0x0528, 0x37B3, 0x263A,
0xDECD, 0xCF44, 0xFDDF, 0xEC56, 0x98E9, 0x8960, 0xBBFB, 0xAA72,
0x6306, 0x728F, 0x4014, 0x519D, 0x2522, 0x34AB, 0x0630, 0x17B9,
0xEF4E, 0xFEC7, 0xCC5C, 0xDDD5, 0xA96A, 0xB8E3, 0x8A78, 0x9BF1,
0x7387, 0x620E, 0x5095, 0x411C, 0x35A3, 0x242A, 0x16B1, 0x0738,
0xFFCF, 0xEE46, 0xDCDD, 0xCD54, 0xB9EB, 0xA862, 0x9AF9, 0x8B70,
0x8408, 0x9581, 0xA71A, 0xB693, 0xC22C, 0xD3A5, 0xE13E, 0xF0B7,
0x0840, 0x19C9, 0x2B52, 0x3ADB, 0x4E64, 0x5FED, 0x6D76, 0x7CFF,
0x9489, 0x8500, 0xB79B, 0xA612, 0xD2AD, 0xC324, 0xF1BF, 0xE036,
0x18C1, 0x0948, 0x3BD3, 0x2A5A, 0x5EE5, 0x4F6C, 0x7DF7, 0x6C7E,
0xA50A, 0xB483, 0x8618, 0x9791, 0xE32E, 0xF2A7, 0xC03C, 0xD1B5,
0x2942, 0x38CB, 0x0A50, 0x1BD9, 0x6F66, 0x7EEF, 0x4C74, 0x5DFD,
0xB58B, 0xA402, 0x9699, 0x8710, 0xF3AF, 0xE226, 0xD0BD, 0xC134,
0x39C3, 0x284A, 0x1AD1, 0x0B58, 0x7FE7, 0x6E6E, 0x5CF5, 0x4D7C,
0xC60C, 0xD785, 0xE51E, 0xF497, 0x8028, 0x91A1, 0xA33A, 0xB2B3,
0x4A44, 0x5BCD, 0x6956, 0x78DF, 0x0C60, 0x1DE9, 0x2F72, 0x3EFB,
0xD68D, 0xC704, 0xF59F, 0xE416, 0x90A9, 0x8120, 0xB3BB, 0xA232,
0x5AC5, 0x4B4C, 0x79D7, 0x685E, 0x1CE1, 0x0D68, 0x3FF3, 0x2E7A,
0xE70E, 0xF687, 0xC41C, 0xD595, 0xA12A, 0xB0A3, 0x8238, 0x93B1,
0x6B46, 0x7ACF, 0x4854, 0x59DD, 0x2D62, 0x3CEB, 0x0E70, 0x1FF9,
0xF78F, 0xE606, 0xD49D, 0xC514, 0xB1AB, 0xA022, 0x92B9, 0x8330,
0x7BC7, 0x6A4E, 0x58D5, 0x495C, 0x3DE3, 0x2C6A, 0x1EF1, 0x0F78,
};
u8 CreateInvisibleSpriteWithCallback(void (*callback)(struct Sprite *))
{
u8 sprite = CreateSprite(&gInvisibleSpriteTemplate, 248, 168, 14);
gSprites[sprite].invisible = TRUE;
gSprites[sprite].callback = callback;
return sprite;
}
void StoreWordInTwoHalfwords(u16 *h, u32 w)
{
h[0] = (u16)(w);
h[1] = (u16)(w >> 16);
}
void LoadWordFromTwoHalfwords(u16 *h, u32 *w)
{
*w = h[0] | (s16)h[1] << 16;
}
void SetBgAffineStruct(struct BgAffineSrcData *src, u32 texX, u32 texY, s16 scrX, s16 scrY, s16 sx, s16 sy, u16 alpha)
{
src->texX = texX;
src->texY = texY;
src->scrX = scrX;
src->scrY = scrY;
src->sx = sx;
src->sy = sy;
src->alpha = alpha;
}
void DoBgAffineSet(struct BgAffineDstData *dest, u32 texX, u32 texY, s16 scrX, s16 scrY, s16 sx, s16 sy, u16 alpha)
{
struct BgAffineSrcData src;
SetBgAffineStruct(&src, texX, texY, scrX, scrY, sx, sy, alpha);
BgAffineSet(&src, dest, 1);
}
#ifdef NONMATCHING
void CopySpriteTiles(u8 shape, u8 size, u8 *tiles, u16 *tilemap, u8 *output)
{
u8 x, y;
s8 i, j;
u8 xflip[32];
u8 h = sSpriteDimensions[shape][size][1];
u8 w = sSpriteDimensions[shape][size][0];
for (y = 0; y < h; y++)
{
int filler = 32 - w;
for (x = 0; x < w; x++)
{
int tile = (*tilemap & 0x3ff) * 32;
int attr = *tilemap & 0xc00;
if (attr == 0)
{
DmaCopy32Defvars(3, tiles + tile, output, 32);
}
else if (attr == 0x800) // yflip
{
for (i = 0; i < 8; i++)
{
DmaCopy32Defvars(3, (7 - i) * 4 + tile + tiles, output + i * 4, 4);
}
}
else // xflip
{
for (i = 0; i < 8; i++)
{
for (j = 0; j < 4; j++)
{
u8 i2 = i * 4;
xflip[i2 + (3-j)] = (tiles[tile + i2 + j] & 0xf) << 4;
xflip[i2 + (3-j)] |= tiles[tile + i2 + j] >> 4;
}
}
if (*tilemap & 0x800) // yflip
{
for (i = 0; i < 8; i++)
{
DmaCopy32Defvars(3, (7 - i) * 4 + xflip, output + i * 4, 4);
}
}
else
{
DmaCopy32Defvars(3, xflip, output, 32);
}
}
tilemap++;
output += 32;
}
tilemap += filler;
}
}
#else
NAKED
void CopySpriteTiles(u8 shape, u8 size, u8 *tiles, u16 *tilemap, u8 *output)
{
asm_unified("\tpush {r4-r7,lr}\n"
"\tmov r7, r10\n"
"\tmov r6, r9\n"
"\tmov r5, r8\n"
"\tpush {r5-r7}\n"
"\tsub sp, 0x3C\n"
"\tstr r2, [sp, 0x20]\n"
"\tadds r4, r3, 0\n"
"\tldr r7, [sp, 0x5C]\n"
"\tlsls r0, 24\n"
"\tlsls r1, 24\n"
"\tldr r2, _0804504C @ =sSpriteDimensions\n"
"\tlsrs r1, 23\n"
"\tlsrs r0, 21\n"
"\tadds r1, r0\n"
"\tadds r0, r2, 0x1\n"
"\tadds r0, r1, r0\n"
"\tldrb r0, [r0]\n"
"\tstr r0, [sp, 0x24]\n"
"\tadds r1, r2\n"
"\tldrb r1, [r1]\n"
"\tstr r1, [sp, 0x28]\n"
"\tmovs r1, 0\n"
"\tcmp r1, r0\n"
"\tbcc _08044FF8\n"
"\tb _0804517A\n"
"_08044FF8:\n"
"\tmovs r0, 0x20\n"
"\tldr r2, [sp, 0x28]\n"
"\tsubs r0, r2\n"
"\tlsls r0, 1\n"
"\tstr r0, [sp, 0x2C]\n"
"_08045002:\n"
"\tmovs r2, 0\n"
"\tadds r1, 0x1\n"
"\tstr r1, [sp, 0x34]\n"
"\tldr r3, [sp, 0x28]\n"
"\tcmp r2, r3\n"
"\tbcc _08045010\n"
"\tb _08045168\n"
"_08045010:\n"
"\tldr r0, _08045050 @ =0x040000d4\n"
"\tmov r8, r0\n"
"_08045014:\n"
"\tldrh r1, [r4]\n"
"\tldr r0, _08045054 @ =0x000003ff\n"
"\tands r0, r1\n"
"\tlsls r0, 5\n"
"\tmov r12, r0\n"
"\tmovs r0, 0xC0\n"
"\tlsls r0, 4\n"
"\tands r0, r1\n"
"\tmov r3, sp\n"
"\tstrh r1, [r3, 0x38]\n"
"\tcmp r0, 0\n"
"\tbne _0804505C\n"
"\tldr r0, [sp, 0x20]\n"
"\tadd r0, r12\n"
"\tmov r1, r8\n"
"\tstr r0, [r1]\n"
"\tstr r7, [r1, 0x4]\n"
"\tldr r3, _08045058 @ =0x84000008\n"
"\tstr r3, [r1, 0x8]\n"
"\tldr r0, [r1, 0x8]\n"
"\tadds r4, 0x2\n"
"\tstr r4, [sp, 0x30]\n"
"\tadds r7, 0x20\n"
"\tmov r10, r7\n"
"\tadds r2, 0x1\n"
"\tmov r9, r2\n"
"\tb _08045156\n"
"\t.align 2, 0\n"
"_0804504C: .4byte sSpriteDimensions\n"
"_08045050: .4byte 0x040000d4\n"
"_08045054: .4byte 0x000003ff\n"
"_08045058: .4byte 0x84000008\n"
"_0804505C:\n"
"\tmovs r1, 0x80\n"
"\tlsls r1, 4\n"
"\tcmp r0, r1\n"
"\tbne _080450AC\n"
"\tmovs r3, 0\n"
"\tadds r4, 0x2\n"
"\tstr r4, [sp, 0x30]\n"
"\tmovs r0, 0x20\n"
"\tadds r0, r7\n"
"\tmov r10, r0\n"
"\tadds r2, 0x1\n"
"\tmov r9, r2\n"
"\tldr r4, _080450A4 @ =0x040000d4\n"
"\tldr r6, _080450A8 @ =0x84000001\n"
"\tmovs r5, 0x7\n"
"_0804507A:\n"
"\tlsls r2, r3, 24\n"
"\tasrs r2, 24\n"
"\tsubs r0, r5, r2\n"
"\tlsls r0, 2\n"
"\tadd r0, r12\n"
"\tldr r1, [sp, 0x20]\n"
"\tadds r0, r1, r0\n"
"\tlsls r1, r2, 2\n"
"\tadds r1, r7, r1\n"
"\tstr r0, [r4]\n"
"\tstr r1, [r4, 0x4]\n"
"\tstr r6, [r4, 0x8]\n"
"\tldr r0, [r4, 0x8]\n"
"\tadds r2, 0x1\n"
"\tlsls r2, 24\n"
"\tlsrs r3, r2, 24\n"
"\tasrs r2, 24\n"
"\tcmp r2, 0x7\n"
"\tble _0804507A\n"
"\tb _08045156\n"
"\t.align 2, 0\n"
"_080450A4: .4byte 0x040000d4\n"
"_080450A8: .4byte 0x84000001\n"
"_080450AC:\n"
"\tmovs r3, 0\n"
"\tadds r4, 0x2\n"
"\tstr r4, [sp, 0x30]\n"
"\tmovs r0, 0x20\n"
"\tadds r0, r7\n"
"\tmov r10, r0\n"
"\tadds r2, 0x1\n"
"\tmov r9, r2\n"
"_080450BC:\n"
"\tmovs r2, 0\n"
"\tlsls r4, r3, 24\n"
"\tlsls r0, r4, 2\n"
"\tlsrs r0, 24\n"
"\tadds r6, r0, 0x3\n"
"\tmov r1, r12\n"
"\tadds r5, r1, r0\n"
"_080450CA:\n"
"\tlsls r1, r2, 24\n"
"\tasrs r1, 24\n"
"\tsubs r0, r6, r1\n"
"\tmov r2, sp\n"
"\tadds r3, r2, r0\n"
"\tadds r0, r5, r1\n"
"\tldr r2, [sp, 0x20]\n"
"\tadds r0, r2, r0\n"
"\tldrb r2, [r0]\n"
"\tmovs r0, 0xF\n"
"\tands r0, r2\n"
"\tlsls r0, 4\n"
"\tlsrs r2, 4\n"
"\torrs r0, r2\n"
"\tstrb r0, [r3]\n"
"\tadds r1, 0x1\n"
"\tlsls r1, 24\n"
"\tlsrs r2, r1, 24\n"
"\tasrs r1, 24\n"
"\tcmp r1, 0x3\n"
"\tble _080450CA\n"
"\tmovs r3, 0x80\n"
"\tlsls r3, 17\n"
"\tadds r0, r4, r3\n"
"\tlsrs r3, r0, 24\n"
"\tasrs r0, 24\n"
"\tcmp r0, 0x7\n"
"\tble _080450BC\n"
"\tmovs r0, 0x80\n"
"\tlsls r0, 4\n"
"\tmov r1, sp\n"
"\tldrh r1, [r1, 0x38]\n"
"\tands r0, r1\n"
"\tcmp r0, 0\n"
"\tbeq _08045148\n"
"\tmovs r3, 0\n"
"\tldr r4, _08045140 @ =0x040000d4\n"
"\tldr r6, _08045144 @ =0x84000001\n"
"\tmovs r5, 0x7\n"
"_08045118:\n"
"\tlsls r1, r3, 24\n"
"\tasrs r1, 24\n"
"\tsubs r0, r5, r1\n"
"\tlsls r0, 2\n"
"\tmov r3, sp\n"
"\tadds r2, r3, r0\n"
"\tlsls r0, r1, 2\n"
"\tadds r0, r7, r0\n"
"\tstr r2, [r4]\n"
"\tstr r0, [r4, 0x4]\n"
"\tstr r6, [r4, 0x8]\n"
"\tldr r0, [r4, 0x8]\n"
"\tadds r1, 0x1\n"
"\tlsls r1, 24\n"
"\tlsrs r3, r1, 24\n"
"\tasrs r1, 24\n"
"\tcmp r1, 0x7\n"
"\tble _08045118\n"
"\tb _08045156\n"
"\t.align 2, 0\n"
"_08045140: .4byte 0x040000d4\n"
"_08045144: .4byte 0x84000001\n"
"_08045148:\n"
"\tmov r0, sp\n"
"\tmov r1, r8\n"
"\tstr r0, [r1]\n"
"\tstr r7, [r1, 0x4]\n"
"\tldr r2, _0804518C @ =0x84000008\n"
"\tstr r2, [r1, 0x8]\n"
"\tldr r0, [r1, 0x8]\n"
"_08045156:\n"
"\tldr r4, [sp, 0x30]\n"
"\tmov r7, r10\n"
"\tmov r3, r9\n"
"\tlsls r0, r3, 24\n"
"\tlsrs r2, r0, 24\n"
"\tldr r0, [sp, 0x28]\n"
"\tcmp r2, r0\n"
"\tbcs _08045168\n"
"\tb _08045014\n"
"_08045168:\n"
"\tldr r1, [sp, 0x2C]\n"
"\tadds r4, r1\n"
"\tldr r2, [sp, 0x34]\n"
"\tlsls r0, r2, 24\n"
"\tlsrs r1, r0, 24\n"
"\tldr r3, [sp, 0x24]\n"
"\tcmp r1, r3\n"
"\tbcs _0804517A\n"
"\tb _08045002\n"
"_0804517A:\n"
"\tadd sp, 0x3C\n"
"\tpop {r3-r5}\n"
"\tmov r8, r3\n"
"\tmov r9, r4\n"
"\tmov r10, r5\n"
"\tpop {r4-r7}\n"
"\tpop {r0}\n"
"\tbx r0\n"
"\t.align 2, 0\n"
"_0804518C: .4byte 0x84000008");
}
#endif // NONMATCHING
int CountTrailingZeroBits(u32 value)
{
u8 i;
for (i = 0; i < 32; i++)
{
if ((value & 1) == 0)
value >>= 1;
else
return i;
}
return 0;
}
u16 CalcCRC16(const u8 *data, u32 length)
{
u16 i, j;
u16 crc = 0x1121;
for (i = 0; i < length; i++)
{
crc ^= data[i];
for (j = 0; j < 8; j++)
{
if (crc & 1)
crc = (crc >> 1) ^ 0x8408;
else
crc >>= 1;
}
}
return ~crc;
}
u16 CalcCRC16WithTable(const u8 *data, u32 length)
{
u16 i;
u16 crc = 0x1121;
u8 byte;
for (i = 0; i < length; i++)
{
byte = crc >> 8;
crc ^= data[i];
crc = byte ^ gCrc16Table[(u8)crc];
}
return ~crc;
}
u32 CalcByteArraySum(const u8 * array, u32 size)
{
s32 i;
u32 result = 0;
for (i = 0; i < size; i++)
{
result += array[i];
}
return result;
}