Rename JAP to JPN

Makefile

@@ -12,7 +12,7 @@ export ROMID
 
 NTSC=0
 PAL=0
-JAP=0
+JPN=0
 
 ifeq ($(ROMID),ntsc-beta)
 	NTSC=1
@@ -34,8 +34,8 @@ ifeq ($(ROMID),pal-final)
 	PAL=1
 	VERSION=4
 endif
-ifeq ($(ROMID),jap-final)
-	JAP=1
+ifeq ($(ROMID),jpn-final)
+	JPN=1
 	VERSION=5
 endif
 
@@ -57,7 +57,7 @@ endif
 CFLAGS := -DVERSION=$(VERSION) \
 	-DNTSC=$(NTSC) \
 	-DPAL=$(PAL) \
-	-DJAP=$(JAP) \
+	-DJPN=$(JPN) \
 	-DPIRACYCHECKS=$(PIRACYCHECKS) \
 	-Wo,-loopunroll,0 \
 	-Wab,-r4300_mul \

README.md

@@ -28,9 +28,9 @@ Perfect Dark has six known versions:
 | ntsc-beta  | NTSC 6.4 beta - can extract assets only                       |
 | pal-final  | PAL 8.7 final - can extract assets only                       |
 | pal-beta   | PAL 28.7 beta - can extract assets only                       |
-| jap-final  | Japanese 8.7 final - can extract assets only                  |
+| jpn-final  | Japanese 8.7 final - can extract assets only                  |
 
-Currently only the ntsc-final and ntsc-1.0 versions are fully supported. The NTSC beta, PAL and JAP versions can have their assets extracted from the base ROM but no effort has been made to build those versions back into a ROM.
+Currently only the ntsc-final and ntsc-1.0 versions are fully supported. The NTSC beta, PAL and JPN versions can have their assets extracted from the base ROM but no effort has been made to build those versions back into a ROM.
 
 The project uses the `$ROMID` environment variable to know which version to work with. If not set, it defaults to `ntsc-final`. You can change it by running something like `export ROMID=ntsc-1.0`.
 

ld/pd.ld

@@ -7,7 +7,7 @@
 #define VERSION_NTSC_FINAL 2
 #define VERSION_PAL_BETA   3
 #define VERSION_PAL_FINAL  4
-#define VERSION_JAP_FINAL  5
+#define VERSION_JPN_FINAL  5
 
 #define BEGIN_SEG(name) \
 	_##name##SegmentStart = ADDR(.name); \