(_aes_crypt): Access IDX1 and IDX3 through the T pointer, saving

two registers.

Rev: src/nettle/sparc/aes.asm:1.93

diff --git a/sparc/aes.asm b/sparc/aes.asm
index 9aead0dcbf8581012c404091a858e4955a8b04eb..8ac0d4d1735f8fa01697a1258d82b8661f4a0eac 100644 (file)
--- a/sparc/aes.asm
+++ b/sparc/aes.asm
@@ -22,8 +22,8 @@
 ! (see gcc/config/sparc.h). We should use only %g1-%g3 to be safe.
        
        ! Used registers:       %l0,1,2,3,4,5,6,7
-       !                       %i0,1,2,3,4,5 (%i6=%fp, %i7 = return)
-       !                       %o0,1,2,3,4,5,7 (%o6=%sp)
+       !                       %i0,1,2,3,4 (%i6=%fp, %i7 = return)
+       !                       %o0,1,2,3,4,7 (%o6=%sp)
        !                       %g1,2,3,5
        
        .file   "aes.asm"
@@ -57,9 +57,10 @@ define(T0, %l6)
 define(T1, %l7)
 define(T2, %g5)
 define(T3, %o7)
-define(IDX1, %i5)
-C define(IDX1, <T + AES_SIDX1 >)
-define(IDX3, %o5)
+C define(IDX1, %i5)
+define(IDX1, <T + AES_SIDX1 >)
+C define(IDX3, %o5)
+define(IDX3, <T + AES_SIDX3 >)
 
 ! Teporaries
 define(t0, %o0)
@@ -95,9 +96,9 @@ _aes_crypt:
        add     T, AES_TABLE1, T1
        add     T, AES_TABLE2, T2
        add     T, AES_TABLE3, T3
-       add     T, AES_SIDX1, IDX1
+       C add   T, AES_SIDX1, IDX1
        
-       add     T, AES_SIDX3, IDX3
+       C add   T, AES_SIDX3, IDX3
        ! Read src, and add initial subkey
        ! Difference between ctx and src.
        ! NOTE: These instructions are duplicated in the delay slot,