diff options
Diffstat (limited to 'arm9/asm/MSL_string.s')
| -rw-r--r-- | arm9/asm/MSL_string.s | 364 |
1 files changed, 364 insertions, 0 deletions
diff --git a/arm9/asm/MSL_string.s b/arm9/asm/MSL_string.s new file mode 100644 index 00000000..cdaf65d9 --- /dev/null +++ b/arm9/asm/MSL_string.s @@ -0,0 +1,364 @@ + .include "asm/macros.inc"
+ .include "global.inc"
+
+ .text
+
+ arm_func_start strlen
+strlen: ; 0x020E2EAC
+ mvn r2, #0x0
+_020E2EB0:
+ ldrsb r1, [r0], #0x1
+ add r2, r2, #0x1
+ cmp r1, #0x0
+ bne _020E2EB0
+ mov r0, r2
+ bx lr
+ arm_func_end strlen
+
+ arm_func_start strcpy
+strcpy: ; 0x020E2EC8
+ stmdb sp!, {r3-r5,lr}
+ and r4, r1, #0x3
+ and r3, r0, #0x3
+ mov r2, r0
+ cmp r3, r4
+ bne _020E2F64
+ cmp r4, #0x0
+ beq _020E2F20
+ ldrb r3, [r1, #0x0]
+ strb r3, [r0, #0x0]
+ cmp r3, #0x0
+ ldmeqia sp!, {r3-r5,pc}
+ rsbs r4, r4, #0x3
+ beq _020E2F18
+_020E2F00:
+ ldrb r3, [r1, #0x1]!
+ cmp r3, #0x0
+ strb r3, [r2, #0x1]!
+ ldmeqia sp!, {r3-r5,pc}
+ subs r4, r4, #0x1
+ bne _020E2F00
+_020E2F18:
+ add r2, r2, #0x1
+ add r1, r1, #0x1
+_020E2F20:
+ ldr r5, [r1, #0x0]
+ ldr r3, _020E2F88 ; =0xFEFEFEFF
+ mvn r4, r5
+ add lr, r5, r3
+ ldr ip, _020E2F8C ; =0x80808080
+ and r4, lr, r4
+ tst r4, r12
+ bne _020E2F64
+ sub r2, r2, #0x4
+_020E2F44:
+ str r5, [r2, #0x4]!
+ ldr r5, [r1, #0x4]!
+ add r4, r5, r3
+ mvn lr, r5
+ and lr, r4, lr
+ tst lr, r12
+ beq _020E2F44
+ add r2, r2, #0x4
+_020E2F64:
+ ldrb r3, [r1, #0x0]
+ strb r3, [r2, #0x0]
+ cmp r3, #0x0
+ ldmeqia sp!, {r3-r5,pc}
+_020E2F74:
+ ldrb r3, [r1, #0x1]!
+ cmp r3, #0x0
+ strb r3, [r2, #0x1]!
+ bne _020E2F74
+ ldmia sp!, {r3-r5,pc}
+ .balign 4
+_020E2F88: .word 0xFEFEFEFF
+_020E2F8C: .word 0x80808080
+ arm_func_end strcpy
+
+ arm_func_start strncpy
+strncpy: ; 0x020E2F90
+ stmdb sp!, {r3,lr}
+ mov lr, r0
+ cmp r2, #0x0
+ ldmeqia sp!, {r3,pc}
+_020E2FA0:
+ ldrsb r3, [r1], #0x1
+ mov r12, lr
+ strb r3, [lr], #0x1
+ ldrsb r3, [r12, #0x0]
+ cmp r3, #0x0
+ bne _020E2FD4
+ subs r2, r2, #0x1
+ ldmeqia sp!, {r3,pc}
+ mov r1, #0x0
+_020E2FC4:
+ strb r1, [lr], #0x1
+ subs r2, r2, #0x1
+ bne _020E2FC4
+ ldmia sp!, {r3,pc}
+_020E2FD4:
+ subs r2, r2, #0x1
+ bne _020E2FA0
+ ldmia sp!, {r3,pc}
+ arm_func_end strncpy
+
+ arm_func_start strcat
+strcat: ; 0x020E2FE0
+ mov r3, r0
+_020E2FE4:
+ ldrsb r2, [r3], #0x1
+ cmp r2, #0x0
+ bne _020E2FE4
+ sub r3, r3, #0x1
+_020E2FF4:
+ ldrsb r2, [r1], #0x1
+ mov r12, r3
+ strb r2, [r3], #0x1
+ ldrsb r2, [r12, #0x0]
+ cmp r2, #0x0
+ bne _020E2FF4
+ bx lr
+ arm_func_end strcat
+
+ arm_func_start strncat
+strncat: ; 0x020E3010
+ stmdb sp!, {r3,lr}
+ mov r12, r0
+_020E3018:
+ ldrsb r3, [r12], #0x1
+ cmp r3, #0x0
+ bne _020E3018
+ cmp r2, #0x0
+ sub r12, r12, #0x1
+ beq _020E3054
+_020E3030:
+ ldrsb r3, [r1], #0x1
+ mov lr, r12
+ strb r3, [r12], #0x1
+ ldrsb r3, [lr, #0x0]
+ cmp r3, #0x0
+ subeq r12, r12, #0x1
+ beq _020E3054
+ subs r2, r2, #0x1
+ bne _020E3030
+_020E3054:
+ mov r1, #0x0
+ strb r1, [r12, #0x0]
+ ldmia sp!, {r3,pc}
+ arm_func_end strncat
+
+ arm_func_start strcmp
+strcmp: ; 0x020E3060
+ stmdb sp!, {r4,lr}
+ ldrb r2, [r0, #0x0]
+ ldrb r3, [r1, #0x0]
+ subs r3, r2, r3
+ movne r0, r3
+ ldmneia sp!, {r4,pc}
+ and r4, r0, #0x3
+ and r3, r1, #0x3
+ cmp r3, r4
+ bne _020E313C
+ cmp r4, #0x0
+ beq _020E30D4
+ cmp r2, #0x0
+ moveq r0, #0x0
+ ldmeqia sp!, {r4,pc}
+ rsbs r4, r4, #0x3
+ beq _020E30CC
+_020E30A4:
+ ldrb r3, [r0, #0x1]!
+ ldrb r2, [r1, #0x1]!
+ subs r2, r3, r2
+ movne r0, r2
+ ldmneia sp!, {r4,pc}
+ cmp r3, #0x0
+ moveq r0, #0x0
+ ldmeqia sp!, {r4,pc}
+ subs r4, r4, #0x1
+ bne _020E30A4
+_020E30CC:
+ add r0, r0, #0x1
+ add r1, r1, #0x1
+_020E30D4:
+ ldr r2, [r0, #0x0]
+ ldr r3, _020E316C ; =0xFEFEFEFF
+ mvn r4, r2
+ add lr, r2, r3
+ ldr ip, _020E3170 ; =0x80808080
+ and r4, lr, r4
+ tst r4, r12
+ ldr r4, [r1, #0x0]
+ bne _020E3128
+ cmp r2, r4
+ bne _020E311C
+_020E3100:
+ ldr r2, [r0, #0x4]!
+ ldr r4, [r1, #0x4]!
+ add lr, r2, r3
+ tst lr, r12
+ bne _020E3128
+ cmp r2, r4
+ beq _020E3100
+_020E311C:
+ sub r0, r0, #0x1
+ sub r1, r1, #0x1
+ b _020E313C
+_020E3128:
+ ldrb r2, [r0, #0x0]
+ ldrb r3, [r1, #0x0]
+ subs r3, r2, r3
+ movne r0, r3
+ ldmneia sp!, {r4,pc}
+_020E313C:
+ cmp r2, #0x0
+ moveq r0, #0x0
+ ldmeqia sp!, {r4,pc}
+_020E3148:
+ ldrb r3, [r0, #0x1]!
+ ldrb r2, [r1, #0x1]!
+ subs r2, r3, r2
+ movne r0, r2
+ ldmneia sp!, {r4,pc}
+ cmp r3, #0x0
+ bne _020E3148
+ mov r0, #0x0
+ ldmia sp!, {r4,pc}
+ .balign 4
+_020E316C: .word 0xFEFEFEFF
+_020E3170: .word 0x80808080
+ arm_func_end strcmp
+
+ arm_func_start strncmp
+strncmp: ; 0x020E3174
+ cmp r2, #0x0
+ beq _020E31A0
+_020E317C:
+ ldrb r12, [r1], #0x1
+ ldrb r3, [r0], #0x1
+ cmp r3, r12
+ subne r0, r3, r12
+ bxne lr
+ cmp r3, #0x0
+ beq _020E31A0
+ subs r2, r2, #0x1
+ bne _020E317C
+_020E31A0:
+ mov r0, #0x0
+ bx lr
+ arm_func_end strncmp
+
+ arm_func_start strchr
+strchr: ; 0x020E31A8
+ ldrsb r2, [r0], #0x1
+ mov r1, r1, lsl #0x18
+ mov r1, r1, asr #0x18
+ cmp r2, #0x0
+ beq _020E31D4
+_020E31BC:
+ cmp r2, r1
+ subeq r0, r0, #0x1
+ bxeq lr
+ ldrsb r2, [r0], #0x1
+ cmp r2, #0x0
+ bne _020E31BC
+_020E31D4:
+ cmp r1, #0x0
+ movne r0, #0x0
+ subeq r0, r0, #0x1
+ bx lr
+ arm_func_end strchr
+
+ arm_func_start strspn
+strspn: ; 0x020E31E4
+ stmdb sp!, {r4,lr}
+ sub sp, sp, #0x20
+ add r12, sp, #0x0
+ mov r3, #0x8
+ mov r2, #0x0
+_020E31F8:
+ strb r2, [r12, #0x0]
+ strb r2, [r12, #0x1]
+ strb r2, [r12, #0x2]
+ strb r2, [r12, #0x3]
+ add r12, r12, #0x4
+ subs r3, r3, #0x1
+ bne _020E31F8
+ ldrb r3, [r1, #0x0]
+ add r4, r1, #0x1
+ cmp r3, #0x0
+ beq _020E3254
+ add lr, sp, #0x0
+ mov r2, #0x1
+_020E322C:
+ and r12, r3, #0xff
+ and r1, r3, #0x7
+ mov r1, r2, lsl r1
+ ldrb r3, [lr, r12, asr #0x3]
+ and r1, r1, #0xff
+ orr r1, r3, r1
+ strb r1, [lr, r12, asr #0x3]
+ ldrb r3, [r4], #0x1
+ cmp r3, #0x0
+ bne _020E322C
+_020E3254:
+ ldrb r1, [r0, #0x0]
+ add r4, r0, #0x1
+ cmp r1, #0x0
+ beq _020E3294
+ add r12, sp, #0x0
+ mov r2, #0x1
+_020E326C:
+ and r3, r1, #0xff
+ and r1, r1, #0x7
+ mov r1, r2, lsl r1
+ ldrb r3, [r12, r3, asr #0x3]
+ and r1, r1, #0xff
+ tst r3, r1
+ bne _020E3294
+ ldrb r1, [r4], #0x1
+ cmp r1, #0x0
+ bne _020E326C
+_020E3294:
+ sub r0, r4, r0
+ sub r0, r0, #0x1
+ add sp, sp, #0x20
+ ldmia sp!, {r4,pc}
+ arm_func_end strspn
+
+ arm_func_start strstr
+strstr: ; 0x020E32A4
+ stmdb sp!, {r4,lr}
+ cmp r1, #0x0
+ ldrneb r2, [r1, #0x0]
+ cmpne r2, #0x0
+ ldmeqia sp!, {r4,pc}
+ ldrb r3, [r0, #0x0]
+ add r4, r0, #0x1
+ cmp r3, #0x0
+ beq _020E3308
+_020E32C8:
+ cmp r3, r2
+ bne _020E32FC
+ mov lr, r4
+ add r12, r1, #0x1
+_020E32D8:
+ ldrb r3, [r12], #0x1
+ ldrb r0, [lr], #0x1
+ cmp r0, r3
+ bne _020E32F0
+ cmp r0, #0x0
+ bne _020E32D8
+_020E32F0:
+ cmp r3, #0x0
+ subeq r0, r4, #0x1
+ ldmeqia sp!, {r4,pc}
+_020E32FC:
+ ldrb r3, [r4], #0x1
+ cmp r3, #0x0
+ bne _020E32C8
+_020E3308:
+ mov r0, #0x0
+ ldmia sp!, {r4,pc}
+ arm_func_end strstr
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