I've compared two dumps (1.01a & 1.01b). It seems they differ only in some data. All referenced addresses are the same.
--- aaa.asm Sun Apr 6 11:19:35 2008
+++ bbb.asm Sun Apr 6 11:31:01 2008
@@ -10595,7 +10595,7 @@
-aMar142007 DCB "Mar 14 2007",0 ; DATA XREF: ROM:off_FF817F30o
+aMay142007 DCB "May 14 2007",0 ; DATA XREF: ROM:off_FF817F30o
@@ -10603,14 +10603,14 @@
- LDR R0, =aMar142007
+ LDR R0, =aMay142007
-off_FF817F30 DCD aMar142007 ; DATA XREF: GetBuildDater
- ; "Mar 14 2007"
-a182623 DCB "18:26:23",0 ; DATA XREF: ROM:off_FF817F48o
+off_FF817F30 DCD aMay142007 ; DATA XREF: GetBuildDater
+ ; "May 14 2007"
+a094823 DCB "09:48:23",0 ; DATA XREF: ROM:off_FF817F48o
@@ -10622,13 +10622,13 @@
- LDR R0, =a182623
+ LDR R0, =a094823
-off_FF817F48 DCD a182623 ; DATA XREF: GetBuildTimer
- ; "18:26:23"
+off_FF817F48 DCD a094823 ; DATA XREF: GetBuildTimer
+ ; "09:48:23"
@@ -10717,7 +10717,7 @@
-aFirmwareVerGm1 DCB "Firmware Ver GM1.01A",0 ; DATA XREF: ROM:off_FF818048o
+aFirmwareVerGm1 DCB "Firmware Ver GM1.01B",0 ; DATA XREF: ROM:off_FF818048o
@@ -10733,7 +10733,7 @@
- ; "Firmware Ver GM1.01A"
+ ; "Firmware Ver GM1.01B"
@@ -542669,19 +542669,19 @@
-unk_FF95127C DCB 2 ; DATA XREF: ROM:off_FF9522F8o
+unk_FF95127C DCB 0 ; DATA XREF: ROM:off_FF9522F8o
+ DCB 0
+ DCB 0x92 ; ?
+ DCB 3
+ DCB 0
+ DCB 0
+ DCB 0
+ DCB 0
+ DCB 0x10
DCB 0
- DCB 0xE4 ; ?
DCB 0
- DCB 0x3B ; ;
- DCB 2
- DCB 0xAD ; ?
- DCB 2
- DCB 4
DCB 0
- DCB 0xA
DCB 0
- DCB 0xC
@@ -542767,19 +542767,19 @@
- DCB 2
DCB 0
- DCB 0x78 ; x
DCB 0
- DCB 0x2C ; ,
- DCB 1
- DCB 0x68 ; h
+ DCB 0xE0 ; ?
DCB 1
- DCB 4
DCB 0
- DCB 0xA
DCB 0
- DCB 0xC
+ DCB 0
+ DCB 0
+ DCB 0x10
+ DCB 0
+ DCB 0
+ DCB 0
+ DCB 0
@@ -542865,19 +542865,19 @@
- DCB 2
DCB 0
- DCB 0xE4 ; ?
DCB 0
- DCB 0x3B ; ;
- DCB 2
- DCB 0xAD ; ?
- DCB 2
- DCB 4
+ DCB 0xBF ; ?
+ DCB 3
+ DCB 0
+ DCB 0
+ DCB 0
+ DCB 0
+ DCB 0x10
+ DCB 0
+ DCB 0
DCB 0
- DCB 0xA
DCB 0
- DCB 0xC
@@ -1092870,7 +1092870,7 @@
-aGm1_01a DCB "GM1.01A",0 ; DATA XREF: ROM:off_FFA87B98o
+aGm1_01b DCB "GM1.01B",0 ; DATA XREF: ROM:off_FFA87B98o
@@ -1092897,7 +1092897,7 @@
- LDR R4, =aGm1_01a
+ LDR R4, =aGm1_01b
@@ -1092990,8 +1092990,8 @@
-off_FFA87B98 DCD aGm1_01a ; DATA XREF: sub_FFA87A4C+18r
- ; "GM1.01A"
+off_FFA87B98 DCD aGm1_01b ; DATA XREF: sub_FFA87A4C+18r
+ ; "GM1.01B"