diff options
Diffstat (limited to 'arm9/asm/RUNTIME_ll_div.s')
| -rw-r--r-- | arm9/asm/RUNTIME_ll_div.s | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/arm9/asm/RUNTIME_ll_div.s b/arm9/asm/RUNTIME_ll_div.s new file mode 100644 index 00000000..9b53d21b --- /dev/null +++ b/arm9/asm/RUNTIME_ll_div.s @@ -0,0 +1,167 @@ + .include "asm/macros.inc"
+ .include "global.inc"
+
+ .text
+
+ arm_func_start _ll_mod
+_ll_mod: ; 0x020EBA28
+ stmdb sp!, {r4-r7,r11-r12,lr}
+ mov r4, r1
+ orr r4, r4, #0x1
+ b _020EBA48
+
+ arm_func_start _ll_sdiv
+_ll_sdiv: ; 0x020EBA38
+ stmdb sp!, {r4-r7,r11-r12,lr}
+ eor r4, r1, r3
+ mov r4, r4, asr #0x1
+ mov r4, r4, lsl #0x1
+_020EBA48:
+ orrs r5, r3, r2
+ bne _020EBA58
+ ldmia sp!, {r4-r7,r11-r12,lr}
+ bx lr
+_020EBA58:
+ mov r5, r0, lsr #0x1f
+ add r5, r5, r1
+ mov r6, r2, lsr #0x1f
+ add r6, r6, r3
+ orrs r6, r5, r6
+ bne _020EBA8C
+ mov r1, r2
+ bl _s32_div_f
+ ands r4, r4, #0x1
+ movne r0, r1
+ mov r1, r0, asr #0x1f
+ ldmia sp!, {r4-r7,r11-r12,lr}
+ bx lr
+_020EBA8C:
+ cmp r1, #0x0
+ bge _020EBA9C
+ rsbs r0, r0, #0x0
+ rsc r1, r1, #0x0
+_020EBA9C:
+ cmp r3, #0x0
+ bge _020EBAAC
+ rsbs r2, r2, #0x0
+ rsc r3, r3, #0x0
+_020EBAAC:
+ orrs r5, r1, r0
+ beq _020EBBD0
+ mov r5, #0x0
+ mov r6, #0x1
+ cmp r3, #0x0
+ bmi _020EBAD8
+_020EBAC4:
+ add r5, r5, #0x1
+ adds r2, r2, r2
+ adcs r3, r3, r3
+ bpl _020EBAC4
+ add r6, r6, r5
+_020EBAD8:
+ cmp r1, #0x0
+ blt _020EBAF8
+_020EBAE0:
+ cmp r6, #0x1
+ beq _020EBAF8
+ sub r6, r6, #0x1
+ adds r0, r0, r0
+ adcs r1, r1, r1
+ bpl _020EBAE0
+_020EBAF8:
+ mov r7, #0x0
+ mov r12, #0x0
+ mov r11, #0x0
+ b _020EBB20
+_020EBB08:
+ orr r12, r12, #0x1
+ subs r6, r6, #0x1
+ beq _020EBB78
+ adds r0, r0, r0
+ adcs r1, r1, r1
+ adcs r7, r7, r7
+_020EBB20:
+ subs r0, r0, r2
+ sbcs r1, r1, r3
+ sbcs r7, r7, #0x0
+ adds r12, r12, r12
+ adc r11, r11, r11
+ cmp r7, #0x0
+ bge _020EBB08
+_020EBB3C:
+ subs r6, r6, #0x1
+ beq _020EBB70
+ adds r0, r0, r0
+ adcs r1, r1, r1
+ adc r7, r7, r7
+ adds r0, r0, r2
+ adcs r1, r1, r3
+ adc r7, r7, #0x0
+ adds r12, r12, r12
+ adc r11, r11, r11
+ cmp r7, #0x0
+ bge _020EBB08
+ b _020EBB3C
+_020EBB70:
+ adds r0, r0, r2
+ adc r1, r1, r3
+_020EBB78:
+ ands r7, r4, #0x1
+ moveq r0, r12
+ moveq r1, r11
+ beq _020EBBB0
+ subs r7, r5, #0x20
+ movge r0, r1, lsr r7
+ bge _020EBBD4
+ rsb r7, r5, #0x20
+ mov r0, r0, lsr r5
+ orr r0, r0, r1, lsl r7
+ mov r1, r1, lsr r5
+ b _020EBBB0
+_020EBBA8: ; 0x020EBBA8
+ mov r0, r1, lsr r7
+ mov r1, #0x0
+_020EBBB0:
+ cmp r4, #0x0
+ blt _020EBBC0
+ ldmia sp!, {r4-r7,r11-r12,lr}
+ bx lr
+_020EBBC0:
+ rsbs r0, r0, #0x0
+ rsc r1, r1, #0x0
+ ldmia sp!, {r4-r7,r11-r12,lr}
+ bx lr
+_020EBBD0:
+ mov r0, #0x0
+_020EBBD4:
+ mov r1, #0x0
+ cmp r4, #0x0
+ blt _020EBBC0
+ ldmia sp!, {r4-r7,r11-r12,lr}
+ bx lr
+
+ arm_func_start _ll_udiv
+_ll_udiv: ; 0x020EBBE8
+ stmdb sp!, {r4-r7,r11-r12,lr}
+ mov r4, #0x0
+ b _020EBBFC
+
+ arm_func_start _ull_mod
+_ull_mod: ; 0x020EBBF4
+ stmdb sp!, {r4-r7,r11-r12,lr}
+ mov r4, #0x1
+_020EBBFC:
+ orrs r5, r3, r2
+ bne _020EBC0C
+ ldmia sp!, {r4-r7,r11-r12,lr}
+ bx lr
+_020EBC0C:
+ orrs r5, r1, r3
+ bne _020EBAAC
+ mov r1, r2
+ bl _u32_div_not_0_f
+ cmp r4, #0x0
+ movne r0, r1
+ mov r1, #0x0
+ ldmia sp!, {r4-r7,r11-r12,lr}
+ bx lr
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