cpuminer OS X XMM SSE2 patch

mac_xmm_amd64.diff

diff --git a/x86_64/sha256_xmm_amd64.asm b/x86_64/sha256_xmm_amd64.asm
index 4fa0ea9..9e36159 100644
--- a/x86_64/sha256_xmm_amd64.asm
+++ b/x86_64/sha256_xmm_amd64.asm
@@ -13,13 +13,14 @@ BITS 64
 %define data rsi
 %define init rdx
 
-extern g_4sha256_k
+extern _g_4sha256_k
 
-global CalcSha256_x64	
+global _CalcSha256_x64
 ;	CalcSha256	hash(rdi), data(rsi), init(rdx)
-CalcSha256_x64:	
+_CalcSha256_x64:
 
 	push	rbx
+	push r8
 
 LAB_NEXT_NONCE:
 	mov	r11, data
@@ -78,6 +79,7 @@ LAB_CALC:
 	pop	rcx
 
 	mov rax, 0
+	mov r8, qword _g_4sha256_k
 
 ; Load the init values of the message into the hash.
 
@@ -103,8 +105,9 @@ LAB_LOOP:
 ;; T t1 = h + (Rotr32(e, 6) ^ Rotr32(e, 11) ^ Rotr32(e, 25)) + ((e & f) ^ AndNot(e, g)) + Expand32<T>(g_sha256_k[j]) + w[j]
 
 	movdqa	xmm6, [rsi+rax*4]
-	paddd	xmm6, g_4sha256_k[rax*4]
+	paddd	xmm6, [r8]
 	add	rax, 4
+	add r8, 16
 
 	paddd	xmm6, xmm10	; +h
 
@@ -215,5 +218,6 @@ debug_me:
 	movdqa	[rdi+7*16], xmm10
 
 LAB_RET:
+    pop r8
 	pop	rbx
 	ret

In addition to this patch I had to fix the Makefile, rerun autogen.sh, and reconfigure with:
CFLAGS="-O3 -Wall -msse2 -arch x86_64" ./configure
although I think the -m and -arch flags are the defaults on my Mac OS X 10.8.3 MacBookPro

patch:

diff --git a/x86_64/Makefile.am b/x86_64/Makefile.am
index c74ddd2..2b91f3a 100644
--- a/x86_64/Makefile.am
+++ b/x86_64/Makefile.am
@@ -5,4 +5,4 @@ SUFFIXES = .asm
libx8664_a_SOURCES = sha256_xmm_amd64.asm

.asm.o:

•   $(YASM) -f elf64 $<
  

•   $(YASM) -f macho64 $<