- save RBX register.

diff --git a/src/pcm/pcm_dmix_x86_64.h b/src/pcm/pcm_dmix_x86_64.h
index f4f5ba3..cbcb2cb 100644 (file)
--- a/src/pcm/pcm_dmix_x86_64.h
+++ b/src/pcm/pcm_dmix_x86_64.h
@@ -46,6 +46,7 @@ static void MIX_AREAS1(unsigned int size,
        __asm__ __volatile__ (
                "\n"
 
+               "\tpush %%rbx\n"
                /*
                 *  initialization, load ESI, EDI, EBX registers
                 */
@@ -110,6 +111,7 @@ static void MIX_AREAS1(unsigned int size,
                "6:"
                
                "\temms\n"
+               "\tpop %%rbx\n"
 
                : /* no output regs */
                : "m" (size), "m" (dst), "m" (src), "m" (sum), "m" (dst_step), "m" (src_step), "m" (sum_step)
@@ -136,6 +138,7 @@ static void MIX_AREAS2(unsigned int size,
        __asm__ __volatile__ (
                "\n"
 
+               "\tpush %%rbx\n"
                /*
                 *  initialization, load ESI, EDI, EBX registers
                 */
@@ -220,6 +223,8 @@ static void MIX_AREAS2(unsigned int size,
                // "\tjmp 6f\n"
                
                "6:"
+               "\tpop %%rbx\n"
+
                : /* no output regs */
                : "m" (size), "m" (dst), "m" (src), "m" (sum), "m" (dst_step), "m" (src_step), "m" (sum_step)
                : "rsi", "rdi", "edx", "ecx", "rbx", "eax"