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-rw-r--r--constants/serial_constants.asm20
1 files changed, 19 insertions, 1 deletions
diff --git a/constants/serial_constants.asm b/constants/serial_constants.asm
index e7b4c4b2c..757292ee9 100644
--- a/constants/serial_constants.asm
+++ b/constants/serial_constants.asm
@@ -6,7 +6,25 @@
const LINK_COLOSSEUM ; 3
const LINK_MOBILE ; 4
-
+; hSerialReceive high nybbles
SERIAL_TIMECAPSULE EQU $60
SERIAL_TRADECENTER EQU $70
SERIAL_BATTLE EQU $80
+
+ESTABLISH_CONNECTION_WITH_INTERNAL_CLOCK EQU $01
+ESTABLISH_CONNECTION_WITH_EXTERNAL_CLOCK EQU $02
+
+START_TRANSFER_EXTERNAL_CLOCK EQU $80 ; 1 << rSC_ON
+START_TRANSFER_INTERNAL_CLOCK EQU $81 ; (1 << rSC_ON) | 1
+
+; hSerialConnectionStatus
+USING_EXTERNAL_CLOCK EQU $01
+USING_INTERNAL_CLOCK EQU $02
+CONNECTION_NOT_ESTABLISHED EQU $ff
+
+; signals the start of an array of bytes transferred over the link cable
+SERIAL_PREAMBLE_BYTE EQU $fd
+; this byte is used when there is no data to send
+SERIAL_NO_DATA_BYTE EQU $fe
+; signals the end of one part of a patch list (there are two parts) for player/enemy party data
+SERIAL_PATCH_LIST_PART_TERMINATOR EQU $ff