diff --git a/media/libstagefright/codecs/amrnb/common/src/l_abs.cpp b/media/libstagefright/codecs/amrnb/common/src/l_abs.cpp
index fd1c90d..7e0ae99 100644
--- a/media/libstagefright/codecs/amrnb/common/src/l_abs.cpp
+++ b/media/libstagefright/codecs/amrnb/common/src/l_abs.cpp
@@ -176,7 +176,7 @@
 /*----------------------------------------------------------------------------
 ; FUNCTION CODE
 ----------------------------------------------------------------------------*/
-Word32 L_abs(register Word32 L_var1)
+Word32 L_abs(Word32 L_var1)
 {
     /*----------------------------------------------------------------------------
     ; Define all local variables
diff --git a/media/libstagefright/codecs/amrnb/common/src/l_shr_r.cpp b/media/libstagefright/codecs/amrnb/common/src/l_shr_r.cpp
index f609a73..47e1ee8 100644
--- a/media/libstagefright/codecs/amrnb/common/src/l_shr_r.cpp
+++ b/media/libstagefright/codecs/amrnb/common/src/l_shr_r.cpp
@@ -190,7 +190,7 @@
 /*----------------------------------------------------------------------------
 ; FUNCTION CODE
 ----------------------------------------------------------------------------*/
-Word32 L_shr_r(register Word32 L_var1, register Word16 var2, Flag *pOverflow)
+Word32 L_shr_r(Word32 L_var1, Word16 var2, Flag *pOverflow)
 {
     Word32 result;
 
diff --git a/media/libstagefright/codecs/amrnb/common/src/negate.cpp b/media/libstagefright/codecs/amrnb/common/src/negate.cpp
index be58d2b..aa36422 100644
--- a/media/libstagefright/codecs/amrnb/common/src/negate.cpp
+++ b/media/libstagefright/codecs/amrnb/common/src/negate.cpp
@@ -161,7 +161,7 @@
 /*----------------------------------------------------------------------------
 ; FUNCTION CODE
 ----------------------------------------------------------------------------*/
-Word16 negate(register Word16 var1)
+Word16 negate(Word16 var1)
 {
     /*----------------------------------------------------------------------------
     ; Define all local variables
diff --git a/media/libstagefright/codecs/amrnb/common/src/round.cpp b/media/libstagefright/codecs/amrnb/common/src/round.cpp
index 71d1702..633a8c9 100644
--- a/media/libstagefright/codecs/amrnb/common/src/round.cpp
+++ b/media/libstagefright/codecs/amrnb/common/src/round.cpp
@@ -184,7 +184,7 @@
 /*----------------------------------------------------------------------------
 ; FUNCTION CODE
 ----------------------------------------------------------------------------*/
-Word16 pv_round(register Word32 L_var1, Flag *pOverflow)
+Word16 pv_round(Word32 L_var1, Flag *pOverflow)
 {
     Word16  result;
 
diff --git a/media/libstagefright/codecs/amrnb/common/src/shr_r.cpp b/media/libstagefright/codecs/amrnb/common/src/shr_r.cpp
index 6656f93..cdcc246 100644
--- a/media/libstagefright/codecs/amrnb/common/src/shr_r.cpp
+++ b/media/libstagefright/codecs/amrnb/common/src/shr_r.cpp
@@ -193,7 +193,7 @@
 /*----------------------------------------------------------------------------
 ; FUNCTION CODE
 ----------------------------------------------------------------------------*/
-Word16 shr_r(register Word16 var1, register Word16 var2, Flag *pOverflow)
+Word16 shr_r(Word16 var1, Word16 var2, Flag *pOverflow)
 {
     /*----------------------------------------------------------------------------
     ; Define all local variables