Define DABR and IABR

(cherry picked from commit cbca83f)

Author: Extrems

gc/ogc/machine/asm.h

@@ -127,6 +127,10 @@
 #define SPRG2	274
 #define SPRG3	275
 
+#define DABR	1013
+
+#define IABR	1010
+
 #define PMC1    953
 #define PMC2    954
 #define PMC3    957

libdb/debug_handler.S

@@ -113,7 +113,7 @@ __set_iabr:
 	rlwinm	r5,r4,0,18,16
 	mtmsr	r5
 	clrrwi	r3,r3,2
-	mtspr	1010,r3
+	mtspr	IABR,r3
 	isync
 	sync
 	mtmsr	r4
@@ -124,9 +124,9 @@ __enable_iabr:
 	mfmsr	r4
 	rlwinm	r5,r4,0,18,16
 	mtmsr	r5
-	mfspr	r3,1010
+	mfspr	r3,IABR
 	ori		r3,r3,0x0003
-	mtspr	1010,r3
+	mtspr	IABR,r3
 	isync
 	sync
 	mtmsr	r4
@@ -137,9 +137,9 @@ __disable_iabr:
 	mfmsr	r4
 	rlwinm	r5,r4,0,18,16
 	mtmsr	r5
-	mfspr	r3,1010
+	mfspr	r3,IABR
 	clrrwi	r3,r3,2
-	mtspr	1010,r3
+	mtspr	IABR,r3
 	isync
 	sync
 	mtmsr	r4
@@ -150,7 +150,7 @@ __clr_iabr:
 	mfmsr	r4
 	rlwinm	r5,r4,0,18,16
 	mtmsr	r5
-	mtspr	1010,0
+	mtspr	IABR,0
 	isync
 	sync
 	mtmsr	r4