diff options
Diffstat (limited to 'arm9/asm/MSL_rand.s')
| -rw-r--r-- | arm9/asm/MSL_rand.s | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arm9/asm/MSL_rand.s b/arm9/asm/MSL_rand.s new file mode 100644 index 00000000..3ef4ab8b --- /dev/null +++ b/arm9/asm/MSL_rand.s @@ -0,0 +1,38 @@ + .include "asm/macros.inc"
+ .include "global.inc"
+
+ .data
+
+ .global random_next
+random_next: ; 0x02106DE0
+ .word 0x00000001
+ .size random_next,.-random_next
+
+ .text
+
+ arm_func_start rand
+rand: ; 0x020E19EC
+ ldr r2, _020E1A14 ; =random_next
+ ldr r0, _020E1A18 ; =0x41C64E6D
+ ldr r3, [r2, #0x0]
+ ldr r1, _020E1A1C ; =0x00007FFF
+ mul r0, r3, r0
+ add r0, r0, #0x39
+ add r0, r0, #0x3000
+ str r0, [r2, #0x0]
+ and r0, r1, r0, lsr #0x10
+ bx lr
+ .balign 4
+_020E1A14: .word random_next
+_020E1A18: .word 0x41C64E6D
+_020E1A1C: .word 0x00007FFF
+ arm_func_end rand
+
+ arm_func_start srand
+srand: ; 0x020E1A20
+ ldr r1, _020E1A2C ; =random_next
+ str r0, [r1, #0x0]
+ bx lr
+ .balign 4
+_020E1A2C: .word random_next
+ arm_func_end srand
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