Changes in boot/arch/ia64/src/asm.S [a2da43c:fe7abd0] in mainline

File:

• boot/arch/ia64/src/asm.S (modified) (2 diffs)

boot/arch/ia64/src/asm.S

@@ -1 +1 @@
 #
 # Copyright (c) 2006 Martin Decky
-# Copyright (c) 2006 Jakub Jermar
+# Copyright (c) 2006 Jakub Jermar 
 # All rights reserved.
 #
@@ -39 +39 @@
         br halt
 
+memcpy:
+        alloc loc0 = ar.pfs, 3, 1, 0, 0
+
+        adds r14 = 7, in1
+        mov r2 = ar.lc
+        mov r8 = in0 ;;
+        and r14 = -8, r14 ;;
+        cmp.ne p6, p7 = r14, in1
+(p7)    br.cond.dpnt 3f ;;
+0:
+        cmp.ne p6, p7 = 0, in2
+(p7)    br.cond.dpnt 2f ;;
+(p6)    adds r14 = -1, in2
+(p6)    mov r16 = r0
+(p6)    mov r17 = r0 ;;
+(p6)    mov ar.lc = r14
+1:
+        add r14 = r16, in1 
+        add r15 = r16, in0
+        adds r17 = 1, r17 ;;
+        ld1 r14 = [r14]
+        mov r16 = r17 ;;
+        st1 [r15] = r14
+        br.cloop.sptk.few 1b ;;
+2:
+        mov ar.lc = r2
+        mov ar.pfs = loc0
+        br.ret.sptk.many rp
+3:
+        adds r14 = 7, in0 ;;
+        and r14 = -8, r14 ;;
+        cmp.eq p6, p7 = r14, in0
+(p7)    br.cond.dptk 0b
+        shr.u r18 = in2, 3 ;;
+        cmp.ne p6, p7 = 0, r18
+(p7)    br.cond.dpnt 5f ;;
+(p6)    adds r14 = -1, r18
+(p6)    mov r16 = r0
+(p6)    mov r17 = r0 ;;
+(p6)    mov ar.lc = r14
+4:
+        shladd r14 = r16, 3, r0
+        adds r16 = 1, r17 ;;
+        add r15 = in1, r14
+        add r14 = in0, r14
+        mov r17 = r16 ;;
+        ld8 r15 = [r15] ;;
+        st8 [r14] = r15
+        br.cloop.sptk.few 4b
+5:
+        and r15 = 7, in2
+        shladd r14 = r18, 3, r0
+        mov r16 = r0
+        mov r18 = r0 ;;
+        cmp.eq p6, p7 = 0, r15
+        add in0 = r14, in0
+        adds r15 = -1, r15
+        add r17 = r14, in1 
+(p6)    br.cond.dpnt 2b ;;
+        mov ar.lc = r15
+6:
+        add r14 = r16, r17
+        add r15 = r16, in0
+        adds r16 = 1, r18 ;;
+        ld1 r14 = [r14]
+        mov r18 = r16 ;;
+        st1 [r15] = r14
+        br.cloop.sptk.few 6b ;;
+        mov ar.lc = r2
+        mov ar.pfs = loc0
+        br.ret.sptk.many rp
+
 jump_to_kernel:
         alloc loc0 = ar.pfs, 1, 1, 0, 0