diff --git a/asm/non_matchings/unknown_0C7F40/D_800C7340.s b/asm/non_matchings/unknown_0C7F40/D_800C7340.s
deleted file mode 100644
index a87dbca7..00000000
--- a/asm/non_matchings/unknown_0C7F40/D_800C7340.s
+++ /dev/null
@@ -1,7 +0,0 @@
-glabel D_800C7340
-/* 0C7F40 800C7340 03E00008 */  jr    $ra
-/* 0C7F44 800C7344 00001025 */   move  $v0, $zero
-
-/* 0C7F48 800C7348 00000000 */  nop   
-/* 0C7F4C 800C734C 00000000 */  nop   
-
diff --git a/asm/non_matchings/unknown_0C7F50/D_800C74A0.s b/asm/non_matchings/unknown_0C7F50/D_800C74A0.s
deleted file mode 100644
index 6b5b86fd..00000000
--- a/asm/non_matchings/unknown_0C7F50/D_800C74A0.s
+++ /dev/null
@@ -1,53 +0,0 @@
-glabel D_800C74A0
-/* 0C80A0 800C74A0 27BDFFC8 */  addiu $sp, $sp, -0x38
-/* 0C80A4 800C74A4 AFB50028 */  sw    $s5, 0x28($sp)
-/* 0C80A8 800C74A8 AFB40024 */  sw    $s4, 0x24($sp)
-/* 0C80AC 800C74AC AFB30020 */  sw    $s3, 0x20($sp)
-/* 0C80B0 800C74B0 AFB00014 */  sw    $s0, 0x14($sp)
-/* 0C80B4 800C74B4 AFB2001C */  sw    $s2, 0x1c($sp)
-/* 0C80B8 800C74B8 AFB10018 */  sw    $s1, 0x18($sp)
-/* 0C80BC 800C74BC 3C108013 */  lui   $s0, %hi(D_8012ACA0) # $s0, 0x8013
-/* 0C80C0 800C74C0 3C13800E */  lui   $s3, %hi(D_800E3774) # $s3, 0x800e
-/* 0C80C4 800C74C4 3C14800E */  lui   $s4, %hi(D_800E3778) # $s4, 0x800e
-/* 0C80C8 800C74C8 3C15800E */  lui   $s5, %hi(D_800E3770) # $s5, 0x800e
-/* 0C80CC 800C74CC AFBF002C */  sw    $ra, 0x2c($sp)
-/* 0C80D0 800C74D0 AFA40038 */  sw    $a0, 0x38($sp)
-/* 0C80D4 800C74D4 AFA00034 */  sw    $zero, 0x34($sp)
-/* 0C80D8 800C74D8 26B53770 */  addiu $s5, %lo(D_800E3770) # addiu $s5, $s5, 0x3770
-/* 0C80DC 800C74DC 26943778 */  addiu $s4, %lo(D_800E3778) # addiu $s4, $s4, 0x3778
-/* 0C80E0 800C74E0 26733774 */  addiu $s3, %lo(D_800E3774) # addiu $s3, $s3, 0x3774
-/* 0C80E4 800C74E4 2610ACA0 */  addiu $s0, %lo(D_8012ACA0) # addiu $s0, $s0, -0x5360
-/* 0C80E8 800C74E8 27B10034 */  addiu $s1, $sp, 0x34
-/* 0C80EC 800C74EC 2412000A */  li    $s2, 10
-.L800C74F0:
-/* 0C80F0 800C74F0 02002025 */  move  $a0, $s0
-.L800C74F4:
-/* 0C80F4 800C74F4 02202825 */  move  $a1, $s1
-/* 0C80F8 800C74F8 0C0322EC */  jal   osRecvMesg
-/* 0C80FC 800C74FC 24060001 */   li    $a2, 1
-/* 0C8100 800C7500 8FAE0034 */  lw    $t6, 0x34($sp)
-/* 0C8104 800C7504 00000000 */  nop   
-/* 0C8108 800C7508 15D2FFFA */  bne   $t6, $s2, .L800C74F4
-/* 0C810C 800C750C 02002025 */   move  $a0, $s0
-/* 0C8110 800C7510 8E640000 */  lw    $a0, ($s3)
-/* 0C8114 800C7514 8E860000 */  lw    $a2, ($s4)
-/* 0C8118 800C7518 0C01B8BA */  jal   func_8006E2E8
-/* 0C811C 800C751C 2405FFFF */   li    $a1, -1
-/* 0C8120 800C7520 1000FFF3 */  b     .L800C74F0
-/* 0C8124 800C7524 AEA00000 */   sw    $zero, ($s5)
-/* 0C8128 800C7528 00000000 */  nop   
-/* 0C812C 800C752C 00000000 */  nop   
-/* 0C8130 800C7530 8FBF002C */  lw    $ra, 0x2c($sp)
-/* 0C8134 800C7534 8FB00014 */  lw    $s0, 0x14($sp)
-/* 0C8138 800C7538 8FB10018 */  lw    $s1, 0x18($sp)
-/* 0C813C 800C753C 8FB2001C */  lw    $s2, 0x1c($sp)
-/* 0C8140 800C7540 8FB30020 */  lw    $s3, 0x20($sp)
-/* 0C8144 800C7544 8FB40024 */  lw    $s4, 0x24($sp)
-/* 0C8148 800C7548 8FB50028 */  lw    $s5, 0x28($sp)
-/* 0C814C 800C754C 03E00008 */  jr    $ra
-/* 0C8150 800C7550 27BD0038 */   addiu $sp, $sp, 0x38
-
-/* 0C8154 800C7554 00000000 */  nop   
-/* 0C8158 800C7558 00000000 */  nop   
-/* 0C815C 800C755C 00000000 */  nop   
-
diff --git a/asm/non_matchings/unknown_0C7F50/func_800C7350.s b/asm/non_matchings/unknown_0C7F50/func_800C7350.s
deleted file mode 100644
index 0827d90b..00000000
--- a/asm/non_matchings/unknown_0C7F50/func_800C7350.s
+++ /dev/null
@@ -1,29 +0,0 @@
-glabel func_800C7350
-/* 0C7F50 800C7350 27BDFFE0 */  addiu $sp, $sp, -0x20
-/* 0C7F54 800C7354 AFBF001C */  sw    $ra, 0x1c($sp)
-/* 0C7F58 800C7358 3C048013 */  lui   $a0, %hi(D_8012ACA0) # $a0, 0x8013
-/* 0C7F5C 800C735C 3C058013 */  lui   $a1, %hi(D_8012ACB8) # $a1, 0x8013
-/* 0C7F60 800C7360 24A5ACB8 */  addiu $a1, %lo(D_8012ACB8) # addiu $a1, $a1, -0x5348
-/* 0C7F64 800C7364 2484ACA0 */  addiu $a0, %lo(D_8012ACA0) # addiu $a0, $a0, -0x5360
-/* 0C7F68 800C7368 0C032208 */  jal   osCreateMesgQueue
-/* 0C7F6C 800C736C 24060002 */   li    $a2, 2
-/* 0C7F70 800C7370 3C0E8013 */  lui   $t6, %hi(D_8012CCC0) # $t6, 0x8013
-/* 0C7F74 800C7374 25CECCC0 */  addiu $t6, %lo(D_8012CCC0) # addiu $t6, $t6, -0x3340
-/* 0C7F78 800C7378 3C048013 */  lui   $a0, %hi(D_8012AAF0) # $a0, 0x8013
-/* 0C7F7C 800C737C 3C06800C */  lui   $a2, %hi(D_800C74A0) # $a2, 0x800c
-/* 0C7F80 800C7380 240F0008 */  li    $t7, 8
-/* 0C7F84 800C7384 AFAF0014 */  sw    $t7, 0x14($sp)
-/* 0C7F88 800C7388 24C674A0 */  addiu $a2, %lo(D_800C74A0) # addiu $a2, $a2, 0x74a0
-/* 0C7F8C 800C738C 2484AAF0 */  addiu $a0, %lo(D_8012AAF0) # addiu $a0, $a0, -0x5510
-/* 0C7F90 800C7390 AFAE0010 */  sw    $t6, 0x10($sp)
-/* 0C7F94 800C7394 2405001E */  li    $a1, 30
-/* 0C7F98 800C7398 0C032214 */  jal   osCreateThread
-/* 0C7F9C 800C739C 00003825 */   move  $a3, $zero
-/* 0C7FA0 800C73A0 3C048013 */  lui   $a0, %hi(D_8012AAF0) # $a0, 0x8013
-/* 0C7FA4 800C73A4 0C032268 */  jal   osStartThread
-/* 0C7FA8 800C73A8 2484AAF0 */   addiu $a0, %lo(D_8012AAF0) # addiu $a0, $a0, -0x5510
-/* 0C7FAC 800C73AC 8FBF001C */  lw    $ra, 0x1c($sp)
-/* 0C7FB0 800C73B0 27BD0020 */  addiu $sp, $sp, 0x20
-/* 0C7FB4 800C73B4 03E00008 */  jr    $ra
-/* 0C7FB8 800C73B8 00000000 */   nop   
-
diff --git a/asm/non_matchings/unknown_0C7F50/func_800C73BC.s b/asm/non_matchings/unknown_0C7F50/func_800C73BC.s
deleted file mode 100644
index c8c5e78b..00000000
--- a/asm/non_matchings/unknown_0C7F50/func_800C73BC.s
+++ /dev/null
@@ -1,11 +0,0 @@
-glabel func_800C73BC
-/* 0C7FBC 800C73BC 27BDFFE8 */  addiu $sp, $sp, -0x18
-/* 0C7FC0 800C73C0 AFBF0014 */  sw    $ra, 0x14($sp)
-/* 0C7FC4 800C73C4 3C048013 */  lui   $a0, %hi(D_8012AAF0) # $a0, 0x8013
-/* 0C7FC8 800C73C8 0C0322BC */  jal   osStopThread
-/* 0C7FCC 800C73CC 2484AAF0 */   addiu $a0, %lo(D_8012AAF0) # addiu $a0, $a0, -0x5510
-/* 0C7FD0 800C73D0 8FBF0014 */  lw    $ra, 0x14($sp)
-/* 0C7FD4 800C73D4 27BD0018 */  addiu $sp, $sp, 0x18
-/* 0C7FD8 800C73D8 03E00008 */  jr    $ra
-/* 0C7FDC 800C73DC 00000000 */   nop   
-
diff --git a/asm/non_matchings/unknown_0C7F50/func_800C73E0.s b/asm/non_matchings/unknown_0C7F50/func_800C73E0.s
deleted file mode 100644
index a6f0af3a..00000000
--- a/asm/non_matchings/unknown_0C7F50/func_800C73E0.s
+++ /dev/null
@@ -1,6 +0,0 @@
-glabel func_800C73E0
-/* 0C7FE0 800C73E0 3C02800E */  lui   $v0, %hi(D_800E3770) # $v0, 0x800e
-/* 0C7FE4 800C73E4 8C423770 */  lw    $v0, %lo(D_800E3770)($v0)
-/* 0C7FE8 800C73E8 03E00008 */  jr    $ra
-/* 0C7FEC 800C73EC 00000000 */   nop   
-
diff --git a/asm/non_matchings/unknown_0C7F50/func_800C73F0.s b/asm/non_matchings/unknown_0C7F50/func_800C73F0.s
deleted file mode 100644
index 25b6f959..00000000
--- a/asm/non_matchings/unknown_0C7F50/func_800C73F0.s
+++ /dev/null
@@ -1,30 +0,0 @@
-glabel func_800C73F0
-/* 0C7FF0 800C73F0 3C0E800E */  lui   $t6, %hi(D_800E3770) # $t6, 0x800e
-/* 0C7FF4 800C73F4 8DCE3770 */  lw    $t6, %lo(D_800E3770)($t6)
-/* 0C7FF8 800C73F8 27BDFFE8 */  addiu $sp, $sp, -0x18
-/* 0C7FFC 800C73FC 11C0000E */  beqz  $t6, .L800C7438
-/* 0C8000 800C7400 AFBF0014 */   sw    $ra, 0x14($sp)
-/* 0C8004 800C7404 3C03800E */  lui   $v1, %hi(D_800E377C) # $v1, 0x800e
-/* 0C8008 800C7408 2463377C */  addiu $v1, %lo(D_800E377C) # addiu $v1, $v1, 0x377c
-/* 0C800C 800C740C 8C620000 */  lw    $v0, ($v1)
-/* 0C8010 800C7410 00000000 */  nop   
-/* 0C8014 800C7414 18400008 */  blez  $v0, .L800C7438
-/* 0C8018 800C7418 244FFFFF */   addiu $t7, $v0, -1
-/* 0C801C 800C741C 15E00006 */  bnez  $t7, .L800C7438
-/* 0C8020 800C7420 AC6F0000 */   sw    $t7, ($v1)
-/* 0C8024 800C7424 3C048013 */  lui   $a0, %hi(D_8012ACA0) # $a0, 0x8013
-/* 0C8028 800C7428 2484ACA0 */  addiu $a0, %lo(D_8012ACA0) # addiu $a0, $a0, -0x5360
-/* 0C802C 800C742C 2405000A */  li    $a1, 10
-/* 0C8030 800C7430 0C03238C */  jal   osSendMesg
-/* 0C8034 800C7434 00003025 */   move  $a2, $zero
-.L800C7438:
-/* 0C8038 800C7438 8FBF0014 */  lw    $ra, 0x14($sp)
-/* 0C803C 800C743C 27BD0018 */  addiu $sp, $sp, 0x18
-/* 0C8040 800C7440 03E00008 */  jr    $ra
-/* 0C8044 800C7444 00000000 */   nop   
-
-/* 0C8048 800C7448 3C02800E */  lui   $v0, %hi(D_800E377C) # $v0, 0x800e
-/* 0C804C 800C744C 8C42377C */  lw    $v0, %lo(D_800E377C)($v0)
-/* 0C8050 800C7450 03E00008 */  jr    $ra
-/* 0C8054 800C7454 00000000 */   nop   
-
diff --git a/asm/non_matchings/unknown_0C7F50/func_800C7458.s b/asm/non_matchings/unknown_0C7F50/func_800C7458.s
deleted file mode 100644
index 4119d5e2..00000000
--- a/asm/non_matchings/unknown_0C7F50/func_800C7458.s
+++ /dev/null
@@ -1,22 +0,0 @@
-glabel func_800C7458
-/* 0C8058 800C7458 3C03800E */  lui   $v1, %hi(D_800E3770) # $v1, 0x800e
-/* 0C805C 800C745C 24633770 */  addiu $v1, %lo(D_800E3770) # addiu $v1, $v1, 0x3770
-/* 0C8060 800C7460 8C6E0000 */  lw    $t6, ($v1)
-/* 0C8064 800C7464 240F0004 */  li    $t7, 4
-/* 0C8068 800C7468 15C0000A */  bnez  $t6, .L800C7494
-/* 0C806C 800C746C 3C01800E */   lui   $at, %hi(D_800E377C) # $at, 0x800e
-/* 0C8070 800C7470 AC2F377C */  sw    $t7, %lo(D_800E377C)($at)
-/* 0C8074 800C7474 3C01800E */  lui   $at, %hi(D_800E3774) # $at, 0x800e
-/* 0C8078 800C7478 AC243774 */  sw    $a0, %lo(D_800E3774)($at)
-/* 0C807C 800C747C 3C01800E */  lui   $at, %hi(D_800E3778) # $at, 0x800e
-/* 0C8080 800C7480 AC253778 */  sw    $a1, %lo(D_800E3778)($at)
-/* 0C8084 800C7484 24180001 */  li    $t8, 1
-/* 0C8088 800C7488 AC780000 */  sw    $t8, ($v1)
-/* 0C808C 800C748C 03E00008 */  jr    $ra
-/* 0C8090 800C7490 24020001 */   li    $v0, 1
-
-.L800C7494:
-/* 0C8094 800C7494 00001025 */  move  $v0, $zero
-/* 0C8098 800C7498 03E00008 */  jr    $ra
-/* 0C809C 800C749C 00000000 */   nop   
-
diff --git a/lib/asm/non_matchings/unknown_0CCF90/osInitialize.s b/lib/asm/non_matchings/unknown_0CCF90/osInitialize.s
index 1ce2eb20..49e78744 100644
--- a/lib/asm/non_matchings/unknown_0CCF90/osInitialize.s
+++ b/lib/asm/non_matchings/unknown_0CCF90/osInitialize.s
@@ -161,9 +161,9 @@ glabel osInitialize
 /* 0CD3FC 800CC7FC AFAB0034 */   sw    $t3, 0x34($sp)
 /* 0CD400 800CC800 240D0001 */  li    $t5, 1
 /* 0CD404 800CC804 3C01800E */  lui   $at, %hi(D_800E38B0) # $at, 0x800e
-/* 0CD408 800CC808 3C05800C */  lui   $a1, %hi(D_800C7340) # $a1, 0x800c
+/* 0CD408 800CC808 3C05800C */  lui   $a1, %hi(func_800C7340) # $a1, 0x800c
 /* 0CD40C 800CC80C AC2D38B0 */  sw    $t5, %lo(D_800E38B0)($at)
-/* 0CD410 800CC810 24A57340 */  addiu $a1, %lo(D_800C7340) # addiu $a1, $a1, 0x7340
+/* 0CD410 800CC810 24A57340 */  addiu $a1, %lo(func_800C7340) # addiu $a1, $a1, 0x7340
 /* 0CD414 800CC814 0C0351FC */  jal   func_800D47F0
 /* 0CD418 800CC818 24040001 */   li    $a0, 1
 /* 0CD41C 800CC81C 10000003 */  b     .L800CC82C
diff --git a/src/unknown_0C7F40.c b/src/unknown_0C7F40.c
index 6ce17ce2..6986dbab 100644
--- a/src/unknown_0C7F40.c
+++ b/src/unknown_0C7F40.c
@@ -4,4 +4,6 @@
 #include "types.h"
 #include "macros.h"
 
-GLOBAL_ASM("asm/non_matchings/unknown_0C7F40/D_800C7340.s")
+s32 func_800C7340(void) {
+    return 0;
+}
diff --git a/src/unknown_0C7F50.c b/src/unknown_0C7F50.c
index 17f09f81..dc0f66d3 100644
--- a/src/unknown_0C7F50.c
+++ b/src/unknown_0C7F50.c
@@ -3,10 +3,70 @@
 
 #include "types.h"
 #include "macros.h"
+#include "libultra_internal.h"
 
-GLOBAL_ASM("asm/non_matchings/unknown_0C7F50/func_800C7350.s")
-GLOBAL_ASM("asm/non_matchings/unknown_0C7F50/func_800C73BC.s")
-GLOBAL_ASM("asm/non_matchings/unknown_0C7F50/func_800C73E0.s")
-GLOBAL_ASM("asm/non_matchings/unknown_0C7F50/func_800C73F0.s")
-GLOBAL_ASM("asm/non_matchings/unknown_0C7F50/func_800C7458.s")
-GLOBAL_ASM("asm/non_matchings/unknown_0C7F50/D_800C74A0.s")
+extern s32 D_800E3770; // boolean
+extern s32 D_800E3774;
+extern s32 D_800E3778;
+extern s32 D_800E377C;
+
+extern OSMesgQueue D_8012ACA0;
+extern OSMesg D_8012ACB8;
+extern OSThread D_8012AAF0;
+extern void *D_8012CCC0;
+
+void func_800C74A0(void *arg);
+
+void func_800C7350(void) {
+    osCreateMesgQueue(&D_8012ACA0, &D_8012ACB8, 2);
+    osCreateThread(&D_8012AAF0, 0x1E, &func_800C74A0, 0, &D_8012CCC0, 8);
+    osStartThread(&D_8012AAF0);
+}
+
+void func_800C73BC(void) {
+    osStopThread(&D_8012AAF0);
+}
+
+s32 func_800C73E0(void) {
+    return D_800E3770;
+}
+
+void func_800C73F0(void) {
+    s32 temp_t7;
+
+    if (D_800E3770) {
+        if (D_800E377C > 0) {
+            D_800E377C--;
+            if (D_800E377C == 0) {
+                osSendMesg(&D_8012ACA0, (OSMesg)10, 0);
+            }
+        }
+    }
+}
+
+// Unused?
+s32 func_800C7448(void) {
+    return D_800E377C;
+}
+
+s32 func_800C7458(s32 arg0, s32 arg1) {
+    if (!D_800E3770) {
+        D_800E377C = 4;
+        D_800E3774 = arg0;
+        D_800E3778 = arg1;
+        D_800E3770 = 1;
+        return 1;
+    }
+    return 0;
+}
+
+void func_800C74A0(void *arg) {
+    OSMesg sp34 = 0;
+    while(1){
+        do {
+            osRecvMesg(&D_8012ACA0, &sp34, 1);
+        } while(sp34 != (OSMesg)10);
+        func_8006E2E8(D_800E3774, -1, D_800E3778);
+        D_800E3770 = 0;
+    }
+}
diff --git a/undefined_syms.txt b/undefined_syms.txt
index 77b290c0..ed24fccb 100755
--- a/undefined_syms.txt
+++ b/undefined_syms.txt
@@ -45,7 +45,7 @@ D_8006C330 = 0x8006C330;
 D_800795AC = 0x800795AC;
 D_8008F618 = 0x8008F618;
 D_800B6FC4 = 0x800B6FC4;
-D_800C7340 = 0x800C7340;
+func_800C7340 = 0x800C7340;
 D_800C74A0 = 0x800C74A0;
 D_800C9D40 = 0x800C9D40;
 alEnvMixerPull = 0x800CA0D0;