From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 9 Feb 2004 18:07:47 +0000 (+0000)
Subject: - save RBX register.
X-Git-Tag: v1.0.3~13
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=0d810e14e128beffa83ee1a620fdfd9331132736;p=alsa-lib.git

- save RBX register.
---

diff --git a/src/pcm/pcm_dmix_x86_64.h b/src/pcm/pcm_dmix_x86_64.h
index f4f5ba34..cbcb2cb4 100644
--- 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"