rm bin/

[avr-crypto-lib.git] / xtea / xtea-asm.S

diff --git a/xtea/xtea-asm.S b/xtea/xtea-asm.S
index f8aac8cd1380adbdd55c1ac3f77a32adb7e03c84..a05f4cb69434a2a2f77d1761205ef3b4ad35b2f1 100644 (file)
--- a/xtea/xtea-asm.S
+++ b/xtea/xtea-asm.S
@@ -1,6 +1,6 @@
-/* xtea-enc.S */
+/* xtea-asm.S */
 /*
-    This file is part of the ARM-Crypto-Lib.
+    This file is part of the AVR-Crypto-Lib.
     Copyright (C) 2006-2011 Daniel Otte (daniel.otte@rub.de)
 
     This program is free software: you can redistribute it and/or modify
@@ -29,15 +29,15 @@ A1 =  9
 A2 = 10
 A3 = 11
 
-V10 = 12
-V11 = 13
-V12 = 14
-V13 = 15
+V00 = 12
+V01 = 13
+V02 = 14
+V03 = 15
 
-V00 = 16
-V01 = 17
-V02 = 18
-V03 = 19
+V10 = 16
+V11 = 17
+V12 = 18
+V13 = 19
 
 S0 = 20
 S1 = 21
@@ -124,6 +124,7 @@ main1:
        mov r24, S0
        lsl r24
        lsl r24
+20:
        rcall sum_plus_k
        ret
 
@@ -132,9 +133,8 @@ main2:
        rcall g_func
        mov r24, S1
        lsr r24
-       rcall sum_plus_k
        rcall xchg_V0V1
-       ret
+       rjmp 20b
 
 .global xtea_enc
 xtea_enc:
@@ -184,6 +184,7 @@ xtea_intro:
 xtea_enc_exit:
        pop r27
        pop r26
+/*
        st X+, V00
        st X+, V01
        st X+, V02
@@ -192,13 +193,22 @@ xtea_enc_exit:
        st X+, V11
        st X+, V12
        st X+, V13
+*/
+       clr r31
+       ldi r30, V00
+       ldi r24, 8
+10:
+       ld r0, Z+
+       st X+, r0
+       dec r24
+       brne 10b
 
-       clr r27
-       ldi r26, 18
+;      clr r31
+       ldi r30, 18
        ldi r24, 14
 10:
        pop r0
-       st -X, r0
+       st -Z, r0
        dec r24
        brne 10b
        ret