diff --git a/src/lib/ultra/io/conteepprobe.c b/src/lib/ultra/io/conteepprobe.c
index b3b82c504..73eb79910 100644
--- a/src/lib/ultra/io/conteepprobe.c
+++ b/src/lib/ultra/io/conteepprobe.c
@@ -1,36 +1,35 @@
 #include <libultra_internal.h>
 
-GLOBAL_ASM(
-glabel osEepromProbe
-/*    50130:	27bdffd0 */ 	addiu	$sp,$sp,-48
-/*    50134:	afbf0014 */ 	sw	$ra,0x14($sp)
-/*    50138:	0c012a18 */ 	jal	__osSiGetAccess
-/*    5013c:	afa40030 */ 	sw	$a0,0x30($sp)
-/*    50140:	8fa40030 */ 	lw	$a0,0x30($sp)
-/*    50144:	0c012fb9 */ 	jal	__osEepStatus
-/*    50148:	27a50024 */ 	addiu	$a1,$sp,0x24
-/*    5014c:	10400003 */ 	beqz	$v0,.L0005015c
-/*    50150:	97ae0024 */ 	lhu	$t6,0x24($sp)
-/*    50154:	1000000b */ 	b	.L00050184
-/*    50158:	00001825 */ 	or	$v1,$zero,$zero
-.L0005015c:
-/*    5015c:	31cfc000 */ 	andi	$t7,$t6,0xc000
-/*    50160:	34018000 */ 	dli	$at,0x8000
-/*    50164:	11e10005 */ 	beq	$t7,$at,.L0005017c
-/*    50168:	3401c000 */ 	dli	$at,0xc000
-/*    5016c:	11e10005 */ 	beq	$t7,$at,.L00050184
-/*    50170:	24030002 */ 	addiu	$v1,$zero,0x2
-/*    50174:	10000003 */ 	b	.L00050184
-/*    50178:	00001825 */ 	or	$v1,$zero,$zero
-.L0005017c:
-/*    5017c:	10000001 */ 	b	.L00050184
-/*    50180:	24030001 */ 	addiu	$v1,$zero,0x1
-.L00050184:
-/*    50184:	0c012a29 */ 	jal	__osSiRelAccess
-/*    50188:	afa3002c */ 	sw	$v1,0x2c($sp)
-/*    5018c:	8fbf0014 */ 	lw	$ra,0x14($sp)
-/*    50190:	8fa2002c */ 	lw	$v0,0x2c($sp)
-/*    50194:	27bd0030 */ 	addiu	$sp,$sp,0x30
-/*    50198:	03e00008 */ 	jr	$ra
-/*    5019c:	00000000 */ 	nop
-);
+s32 osEepromProbe(OSMesgQueue *mq)
+{
+	s32 ret;
+	u16 type;
+	OSContStatus sdata;
+
+	ret = 0;
+
+	__osSiGetAccess();
+
+	ret = __osEepStatus(mq, &sdata);
+	type = sdata.type & (CONT_EEPROM | CONT_EEP16K);
+
+	if (ret != 0) {
+		ret = 0;
+	} else {
+		switch (type) {
+		case CONT_EEPROM:
+			ret = EEPROM_TYPE_4K;
+			break;
+		case CONT_EEPROM | CONT_EEP16K:
+			ret = EEPROM_TYPE_16K;
+			break;
+		default:
+			ret = 0;
+			break;
+		}
+	}
+
+	__osSiRelAccess();
+
+	return ret;
+}