1 files changed, 108 insertions, 0 deletions
diff --git a/mpg123_artsplugin/mpg123/decode_MMX.s b/mpg123_artsplugin/mpg123/decode_MMX.s
new file mode 100644
index 00000000..1c9a1adb
--- /dev/null
+++ b/mpg123_artsplugin/mpg123/decode_MMX.s
@@ -0,0 +1,108 @@
+# this code comes under GPL
+
+.text
+
+.globl synth_1to1_MMX
+
+synth_1to1_MMX: 
+        pushl %ebp
+        pushl %edi
+        pushl %esi
+        pushl %ebx
+        movl 24(%esp),%ecx              
+        movl 28(%esp),%edi              
+        movl $15,%ebx
+        movl 36(%esp),%edx              
+        leal (%edi,%ecx,2),%edi
+	decl %ecx
+        movl 32(%esp),%esi              
+        movl (%edx),%eax                
+        jecxz .L1
+        decl %eax
+        andl %ebx,%eax                  
+        leal 1088(%esi),%esi                            
+        movl %eax,(%edx)                
+.L1:
+        leal (%esi,%eax,2),%edx         
+        movl %eax,%ebp                  
+        incl %eax                       
+        pushl 20(%esp)                  
+        andl %ebx,%eax                  
+        leal 544(%esi,%eax,2),%ecx      
+        incl %ebx                       
+	testl $1, %eax
+	jnz .L2                       
+        xchgl %edx,%ecx
+	incl %ebp
+        leal 544(%esi),%esi           
+.L2: 
+        pushl %edx
+        pushl %ecx
+        call dct64_MMX
+        addl $12,%esp
+	leal 1(%ebx), %ecx
+        subl %ebp,%ebx                
+
+	leal decwins(%ebx,%ebx,1), %edx
+.L3: 
+        movq  (%edx),%mm0
+        pmaddwd (%esi),%mm0
+        movq  8(%edx),%mm1
+        pmaddwd 8(%esi),%mm1
+        movq  16(%edx),%mm2
+        pmaddwd 16(%esi),%mm2
+        movq  24(%edx),%mm3
+        pmaddwd 24(%esi),%mm3
+        paddd %mm1,%mm0
+        paddd %mm2,%mm0
+        paddd %mm3,%mm0
+        movq  %mm0,%mm1
+        psrlq $32,%mm1
+        paddd %mm1,%mm0
+        psrad $13,%mm0
+        packssdw %mm0,%mm0
+        movd %mm0,%eax
+	movw %ax, (%edi)
+
+        leal 32(%esi),%esi
+        leal 64(%edx),%edx
+        leal 4(%edi),%edi                
+        loop .L3
+
+
+        subl $64,%esi                    
+        movl $15,%ecx
+.L4: 
+        movq  (%edx),%mm0
+        pmaddwd (%esi),%mm0
+        movq  8(%edx),%mm1
+        pmaddwd 8(%esi),%mm1
+        movq  16(%edx),%mm2
+        pmaddwd 16(%esi),%mm2
+        movq  24(%edx),%mm3
+        pmaddwd 24(%esi),%mm3
+        paddd %mm1,%mm0
+        paddd %mm2,%mm0
+        paddd %mm3,%mm0
+        movq  %mm0,%mm1
+        psrlq $32,%mm1
+        paddd %mm0,%mm1
+        psrad $13,%mm1
+        packssdw %mm1,%mm1
+        psubd %mm0,%mm0
+        psubsw %mm1,%mm0
+        movd %mm0,%eax
+	movw %ax,(%edi)
+
+        subl $32,%esi
+        addl $64,%edx
+        leal 4(%edi),%edi                
+        loop .L4
+	emms
+        popl %ebx
+        popl %esi
+        popl %edi
+        popl %ebp
+        ret
+
+