-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all,
I added support for pushl xxx(%esp) instruction and also I managed to create smarter wrapper code which means 10% drop in size (measured if -O0 is used). Signed-off-by: Rudolf Marek <[email protected]> Rudolf -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkrPdyAACgkQ3J9wPJqZRNWhGwCeJcqRNRfZJf889PcP/RFhychk SUoAn2lcBzedRFFpxOcBwDg34VluHGUs =D22D -----END PGP SIGNATURE-----
Index: xmmstack.c
===================================================================
--- xmmstack.c (revision 10)
+++ xmmstack.c (working copy)
@@ -162,6 +162,30 @@
//bswap and xchg also not affect flags.
//dr2 must be initially 0x7f
+ fprintf(w,"docall:\nmovl %%eax,%%dr0 #NOSTACK\n\
+ ovl %%dr2,%%eax #NOSTACK\n\
+ movzbl %%al,%%eax #NOSTACK\n\
+ leal -4(%%eax),%%eax #NOSTACK\n\
+ movb %%al,%%ah #NOSTACK\n\
+ movl %%eax,%%dr2 #NOSTACK\n\
+ leal 8(%%esp),%%eax #NOSTACK\n\
+ jmp setxmml\n\
+ dopop:\n movl %%eax,%%dr0 #NOSTACK\n\
+ movl %%dr2,%%eax #NOSTACK\n\
+ movzbl %%al,%%eax #NOSTACK\n\
+ movb %%al,%%ah #NOSTACK\n\
+ leal 4(%%eax),%%eax #NOSTACK\n\
+ movl %%eax,%%dr2 #NOSTACK\n\
+ jmp getxmml\n\
+ dopush:\n movl %%eax,%%dr3 #NOSTACK\n\
+ movl %%dr2,%%eax #NOSTACK\n\
+ movzbl %%al,%%eax #NOSTACK\n\
+ leal -4(%%eax),%%eax #NOSTACK\n\
+ movb %%al,%%ah #NOSTACK\n\
+ movl %%eax,%%dr2 #NOSTACK\n\
+ movl %%dr3,%%eax\n\
+ jmp setxmml\n");
+
//16 bytes table xmm/12 mmx, pextrw and pinsrw consumes 5 bytes, and jmp *esp consumes 2, nop consumes 1 byte, movb consumes 2 bytes
//Align of each,must 16 bytes, for use 1,2,4,8 escalar multiple.
fprintf(w,"setxmm:\n");
@@ -550,6 +574,23 @@
fprintf(w,"#%s #ORIG\n", buf);
+ /* handle pushl xxx(%esp) */
+ if (regexp("^pushl\\s+(\\d*)\\(\\%esp\\)",buf,len,find)) {
+ fprintf(w,"movl %%eax,%%dr0 #NOSTACK\n");
+ fprintf(w,"movl %%dr2,%%eax #NOSTACK\n");
+ fprintf(w,"movzbl %%al,%%eax #NOSTACK\n");
+ fprintf(w,"movb %%al,%%ah #NOSTACK\n");
+ fprintf(w,"leal %d(%%eax),%%eax #NOSTACK\n",256*atoi(find[1]));
+ fprintf(w,"movl %%eax,%%dr2 #NOSTACK\n");
+ fprintf(w,"movl %%dr0,%%eax #NOSTACK\n");
+ fprintf(w,"movl $.+10,%%esp\n");
+ fprintf(w,"jmp getxmml\n");
+ fprintf(w,"movl $.+10,%%esp\n");
+ fprintf(w,"jmp dopush\n");
+ fprintf(w,"movl %%dr0,%%eax #NOSTACK\n");
+ continue;
+ }
+
/* leal is tricky */
if (regexp("^leal\\s+(\\d*)\\(\\%esp\\)\\s*,\\s*(.*)$",buf,len,find))
{
@@ -675,27 +716,17 @@
if (regexp("^pushl\\s+(.*)$",buf,len,find))
{
fprintf(w,"movl %%eax,%%dr0 #NOSTACK\n");
- fprintf(w,"movl %%dr2,%%eax #NOSTACK\n");
- fprintf(w,"movzbl %%al,%%eax #NOSTACK\n");
- fprintf(w,"leal -4(%%eax),%%eax #NOSTACK\n");
- fprintf(w,"movb %%al,%%ah #NOSTACK\n");
- fprintf(w,"movl %%eax,%%dr2 #NOSTACK\n");
fprintf(w,"movl %s,%%eax\n",find[1]);
fprintf(w,"movl $.+10,%%esp\n");
- fprintf(w,"jmp setxmml\n");
+ fprintf(w,"jmp dopush\n");
fprintf(w,"movl %%dr0,%%eax #NOSTACK\n");
continue;
}
if (regexp("^popl\\s+(.*)$",buf,len,find))
{
- fprintf(w,"movl %%eax,%%dr0 #NOSTACK\n");
- fprintf(w,"movl %%dr2,%%eax #NOSTACK\n");
- fprintf(w,"movzbl %%al,%%eax #NOSTACK\n");
- fprintf(w,"movb %%al,%%ah #NOSTACK\n");
- fprintf(w,"leal 4(%%eax),%%eax #NOSTACK\n");
- fprintf(w,"movl %%eax,%%dr2 #NOSTACK\n");
+
fprintf(w,"movl $.+10,%%esp\n");
- fprintf(w,"jmp getxmml\n");
+ fprintf(w,"jmp dopop\n");
fprintf(w,"movl %%eax,%s\n",find[1]);
if (strcmp(find[1],"%eax"))
fprintf(w,"movl %%dr0,%%eax #NOSTACK\n");
@@ -703,15 +734,8 @@
}
if (regexp("^call\\s+(.*)$",buf,len,find))
{
- fprintf(w,"movl %%eax,%%dr0 #NOSTACK\n");
- fprintf(w,"movl %%dr2,%%eax #NOSTACK\n");
- fprintf(w,"movzbl %%al,%%eax #NOSTACK\n");
- fprintf(w,"leal -4(%%eax),%%eax #NOSTACK\n");
- fprintf(w,"movb %%al,%%ah #NOSTACK\n");
- fprintf(w,"movl %%eax,%%dr2 #NOSTACK\n");
- fprintf(w,"movl $.+23,%%eax #NOSTACK\n");
fprintf(w,"movl $.+10,%%esp\n");
- fprintf(w,"jmp setxmml\n");
+ fprintf(w,"jmp docall\n");
fprintf(w,"movl %%dr0,%%eax #NOSTACK\n");
fprintf(w,".byte 0xe9\n.long %s-4-. #NOSTACK\n",find[1]);//jmp, not works with .global??? gcc???
continue;
a.patch.sig
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