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authorRalf S. Engelschall <rse@openssl.org>1998-12-21 10:56:39 +0000
committerRalf S. Engelschall <rse@openssl.org>1998-12-21 10:56:39 +0000
commit58964a492275ca9a59a0cd9c8155cb2491b4b909 (patch)
treec7b16876a5789463bbbb468ef4829c8129b3d718 /crypto/perlasm
parentd02b48c63a58ea4367a0e905979f140b7d090f86 (diff)
downloadopenssl-58964a492275ca9a59a0cd9c8155cb2491b4b909.zip
openssl-58964a492275ca9a59a0cd9c8155cb2491b4b909.tar.gz
openssl-58964a492275ca9a59a0cd9c8155cb2491b4b909.tar.bz2
Import of old SSLeay release: SSLeay 0.9.0b
Diffstat (limited to 'crypto/perlasm')
-rw-r--r--crypto/perlasm/cbc.pl342
-rw-r--r--crypto/perlasm/readme124
-rw-r--r--crypto/perlasm/x86asm.pl113
-rw-r--r--crypto/perlasm/x86ms.pl189
-rw-r--r--crypto/perlasm/x86unix.pl256
5 files changed, 909 insertions, 115 deletions
diff --git a/crypto/perlasm/cbc.pl b/crypto/perlasm/cbc.pl
new file mode 100644
index 0000000..0145c4f
--- /dev/null
+++ b/crypto/perlasm/cbc.pl
@@ -0,0 +1,342 @@
+#!/usr/local/bin/perl
+
+# void des_ncbc_encrypt(input, output, length, schedule, ivec, enc)
+# des_cblock (*input);
+# des_cblock (*output);
+# long length;
+# des_key_schedule schedule;
+# des_cblock (*ivec);
+# int enc;
+#
+# calls
+# des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
+#
+
+#&cbc("des_ncbc_encrypt","des_encrypt",0);
+#&cbc("BF_cbc_encrypt","BF_encrypt","BF_encrypt",
+# 1,4,5,3,5,-1);
+#&cbc("des_ncbc_encrypt","des_encrypt","des_encrypt",
+# 0,4,5,3,5,-1);
+#&cbc("des_ede3_cbc_encrypt","des_encrypt3","des_decrypt3",
+# 0,6,7,3,4,5);
+#
+# When doing a cipher that needs bigendian order,
+# for encrypt, the iv is kept in bigendian form,
+# while for decrypt, it is kept in little endian.
+sub cbc
+ {
+ local($name,$enc_func,$dec_func,$swap,$iv_off,$enc_off,$p1,$p2,$p3)=@_;
+ # name is the function name
+ # enc_func and dec_func and the functions to call for encrypt/decrypt
+ # swap is true if byte order needs to be reversed
+ # iv_off is parameter number for the iv
+ # enc_off is parameter number for the encrypt/decrypt flag
+ # p1,p2,p3 are the offsets for parameters to be passed to the
+ # underlying calls.
+
+ &function_begin_B($name,"");
+ &comment("");
+
+ $in="esi";
+ $out="edi";
+ $count="ebp";
+
+ &push("ebp");
+ &push("ebx");
+ &push("esi");
+ &push("edi");
+
+ $data_off=4;
+ $data_off+=4 if ($p1 > 0);
+ $data_off+=4 if ($p2 > 0);
+ $data_off+=4 if ($p3 > 0);
+
+ &mov($count, &wparam(2)); # length
+
+ &comment("getting iv ptr from parameter $iv_off");
+ &mov("ebx", &wparam($iv_off)); # Get iv ptr
+
+ &mov($in, &DWP(0,"ebx","",0));# iv[0]
+ &mov($out, &DWP(4,"ebx","",0));# iv[1]
+
+ &push($out);
+ &push($in);
+ &push($out); # used in decrypt for iv[1]
+ &push($in); # used in decrypt for iv[0]
+
+ &mov("ebx", "esp"); # This is the address of tin[2]
+
+ &mov($in, &wparam(0)); # in
+ &mov($out, &wparam(1)); # out
+
+ # We have loaded them all, how lets push things
+ &comment("getting encrypt flag from parameter $enc_off");
+ &mov("ecx", &wparam($enc_off)); # Get enc flag
+ if ($p3 > 0)
+ {
+ &comment("get and push parameter $p3");
+ if ($enc_off != $p3)
+ { &mov("eax", &wparam($p3)); &push("eax"); }
+ else { &push("ecx"); }
+ }
+ if ($p2 > 0)
+ {
+ &comment("get and push parameter $p2");
+ if ($enc_off != $p2)
+ { &mov("eax", &wparam($p2)); &push("eax"); }
+ else { &push("ecx"); }
+ }
+ if ($p1 > 0)
+ {
+ &comment("get and push parameter $p1");
+ if ($enc_off != $p1)
+ { &mov("eax", &wparam($p1)); &push("eax"); }
+ else { &push("ecx"); }
+ }
+ &push("ebx"); # push data/iv
+
+ &cmp("ecx",0);
+ &jz(&label("decrypt"));
+
+ &and($count,0xfffffff8);
+ &mov("eax", &DWP($data_off,"esp","",0)); # load iv[0]
+ &mov("ebx", &DWP($data_off+4,"esp","",0)); # load iv[1]
+
+ &jz(&label("encrypt_finish"));
+
+ #############################################################
+
+ &set_label("encrypt_loop");
+ # encrypt start
+ # "eax" and "ebx" hold iv (or the last cipher text)
+
+ &mov("ecx", &DWP(0,$in,"",0)); # load first 4 bytes
+ &mov("edx", &DWP(4,$in,"",0)); # second 4 bytes
+
+ &xor("eax", "ecx");
+ &xor("ebx", "edx");
+
+ &bswap("eax") if $swap;
+ &bswap("ebx") if $swap;
+
+ &mov(&DWP($data_off,"esp","",0), "eax"); # put in array for call
+ &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
+
+ &call($enc_func);
+
+ &mov("eax", &DWP($data_off,"esp","",0));
+ &mov("ebx", &DWP($data_off+4,"esp","",0));
+
+ &bswap("eax") if $swap;
+ &bswap("ebx") if $swap;
+
+ &mov(&DWP(0,$out,"",0),"eax");
+ &mov(&DWP(4,$out,"",0),"ebx");
+
+ # eax and ebx are the next iv.
+
+ &add($in, 8);
+ &add($out, 8);
+
+ &sub($count, 8);
+ &jnz(&label("encrypt_loop"));
+
+###################################################################3
+ &set_label("encrypt_finish");
+ &mov($count, &wparam(2)); # length
+ &and($count, 7);
+ &jz(&label("finish"));
+ &xor("ecx","ecx");
+ &xor("edx","edx");
+ &mov($count,&DWP(&label("cbc_enc_jmp_table"),"",$count,4));
+ &jmp_ptr($count);
+
+&set_label("ej7");
+ &xor("edx", "edx") if $ppro; # ppro friendly
+ &movb(&HB("edx"), &BP(6,$in,"",0));
+ &shl("edx",8);
+&set_label("ej6");
+ &movb(&HB("edx"), &BP(5,$in,"",0));
+&set_label("ej5");
+ &movb(&LB("edx"), &BP(4,$in,"",0));
+&set_label("ej4");
+ &mov("ecx", &DWP(0,$in,"",0));
+ &jmp(&label("ejend"));
+&set_label("ej3");
+ &movb(&HB("ecx"), &BP(2,$in,"",0));
+ &xor("ecx", "ecx") if $ppro; # ppro friendly
+ &shl("ecx",8);
+&set_label("ej2");
+ &movb(&HB("ecx"), &BP(1,$in,"",0));
+&set_label("ej1");
+ &movb(&LB("ecx"), &BP(0,$in,"",0));
+&set_label("ejend");
+
+ &xor("eax", "ecx");
+ &xor("ebx", "edx");
+
+ &bswap("eax") if $swap;
+ &bswap("ebx") if $swap;
+
+ &mov(&DWP($data_off,"esp","",0), "eax"); # put in array for call
+ &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
+
+ &call($enc_func);
+
+ &mov("eax", &DWP($data_off,"esp","",0));
+ &mov("ebx", &DWP($data_off+4,"esp","",0));
+
+ &bswap("eax") if $swap;
+ &bswap("ebx") if $swap;
+
+ &mov(&DWP(0,$out,"",0),"eax");
+ &mov(&DWP(4,$out,"",0),"ebx");
+
+ &jmp(&label("finish"));
+
+ #############################################################
+ #############################################################
+ &set_label("decrypt",1);
+ # decrypt start
+ &and($count,0xfffffff8);
+ # The next 2 instructions are only for if the jz is taken
+ &mov("eax", &DWP($data_off+8,"esp","",0)); # get iv[0]
+ &mov("ebx", &DWP($data_off+12,"esp","",0)); # get iv[1]
+ &jz(&label("decrypt_finish"));
+
+ &set_label("decrypt_loop");
+ &mov("eax", &DWP(0,$in,"",0)); # load first 4 bytes
+ &mov("ebx", &DWP(4,$in,"",0)); # second 4 bytes
+
+ &bswap("eax") if $swap;
+ &bswap("ebx") if $swap;
+
+ &mov(&DWP($data_off,"esp","",0), "eax"); # put back
+ &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
+
+ &call($dec_func);
+
+ &mov("eax", &DWP($data_off,"esp","",0)); # get return
+ &mov("ebx", &DWP($data_off+4,"esp","",0)); #
+
+ &bswap("eax") if $swap;
+ &bswap("ebx") if $swap;
+
+ &mov("ecx", &DWP($data_off+8,"esp","",0)); # get iv[0]
+ &mov("edx", &DWP($data_off+12,"esp","",0)); # get iv[1]
+
+ &xor("ecx", "eax");
+ &xor("edx", "ebx");
+
+ &mov("eax", &DWP(0,$in,"",0)); # get old cipher text,
+ &mov("ebx", &DWP(4,$in,"",0)); # next iv actually
+
+ &mov(&DWP(0,$out,"",0),"ecx");
+ &mov(&DWP(4,$out,"",0),"edx");
+
+ &mov(&DWP($data_off+8,"esp","",0), "eax"); # save iv
+ &mov(&DWP($data_off+12,"esp","",0), "ebx"); #
+
+ &add($in, 8);
+ &add($out, 8);
+
+ &sub($count, 8);
+ &jnz(&label("decrypt_loop"));
+############################ ENDIT #######################3
+ &set_label("decrypt_finish");
+ &mov($count, &wparam(2)); # length
+ &and($count, 7);
+ &jz(&label("finish"));
+
+ &mov("eax", &DWP(0,$in,"",0)); # load first 4 bytes
+ &mov("ebx", &DWP(4,$in,"",0)); # second 4 bytes
+
+ &bswap("eax") if $swap;
+ &bswap("ebx") if $swap;
+
+ &mov(&DWP($data_off,"esp","",0), "eax"); # put back
+ &mov(&DWP($data_off+4,"esp","",0), "ebx"); #
+
+ &call($dec_func);
+
+ &mov("eax", &DWP($data_off,"esp","",0)); # get return
+ &mov("ebx", &DWP($data_off+4,"esp","",0)); #
+
+ &bswap("eax") if $swap;
+ &bswap("ebx") if $swap;
+
+ &mov("ecx", &DWP($data_off+8,"esp","",0)); # get iv[0]
+ &mov("edx", &DWP($data_off+12,"esp","",0)); # get iv[1]
+
+ &xor("ecx", "eax");
+ &xor("edx", "ebx");
+
+ # this is for when we exit
+ &mov("eax", &DWP(0,$in,"",0)); # get old cipher text,
+ &mov("ebx", &DWP(4,$in,"",0)); # next iv actually
+
+&set_label("dj7");
+ &rotr("edx", 16);
+ &movb(&BP(6,$out,"",0), &LB("edx"));
+ &shr("edx",16);
+&set_label("dj6");
+ &movb(&BP(5,$out,"",0), &HB("edx"));
+&set_label("dj5");
+ &movb(&BP(4,$out,"",0), &LB("edx"));
+&set_label("dj4");
+ &mov(&DWP(0,$out,"",0), "ecx");
+ &jmp(&label("djend"));
+&set_label("dj3");
+ &rotr("ecx", 16);
+ &movb(&BP(2,$out,"",0), &LB("ecx"));
+ &shl("ecx",16);
+&set_label("dj2");
+ &movb(&BP(1,$in,"",0), &HB("ecx"));
+&set_label("dj1");
+ &movb(&BP(0,$in,"",0), &LB("ecx"));
+&set_label("djend");
+
+ # final iv is still in eax:ebx
+ &jmp(&label("finish"));
+
+
+############################ FINISH #######################3
+ &set_label("finish",1);
+ &mov("ecx", &wparam($iv_off)); # Get iv ptr
+
+ #################################################
+ $total=16+4;
+ $total+=4 if ($p1 > 0);
+ $total+=4 if ($p2 > 0);
+ $total+=4 if ($p3 > 0);
+ &add("esp",$total);
+
+ &mov(&DWP(0,"ecx","",0), "eax"); # save iv
+ &mov(&DWP(4,"ecx","",0), "ebx"); # save iv
+
+ &function_end_A($name);
+
+ &set_label("cbc_enc_jmp_table",1);
+ &data_word("0");
+ &data_word(&label("ej1"));
+ &data_word(&label("ej2"));
+ &data_word(&label("ej3"));
+ &data_word(&label("ej4"));
+ &data_word(&label("ej5"));
+ &data_word(&label("ej6"));
+ &data_word(&label("ej7"));
+ &set_label("cbc_dec_jmp_table",1);
+ &data_word("0");
+ &data_word(&label("dj1"));
+ &data_word(&label("dj2"));
+ &data_word(&label("dj3"));
+ &data_word(&label("dj4"));
+ &data_word(&label("dj5"));
+ &data_word(&label("dj6"));
+ &data_word(&label("dj7"));
+
+ &function_end_B($name);
+
+ }
+
+1;
diff --git a/crypto/perlasm/readme b/crypto/perlasm/readme
new file mode 100644
index 0000000..f02bbee
--- /dev/null
+++ b/crypto/perlasm/readme
@@ -0,0 +1,124 @@
+The perl scripts in this directory are my 'hack' to generate
+multiple different assembler formats via the one origional script.
+
+The way to use this library is to start with adding the path to this directory
+and then include it.
+
+push(@INC,"perlasm","../../perlasm");
+require "x86asm.pl";
+
+The first thing we do is setup the file and type of assember
+
+&asm_init($ARGV[0],$0);
+
+The first argument is the 'type'. Currently
+'cpp', 'sol', 'a.out', 'elf' or 'win32'.
+Argument 2 is the file name.
+
+The reciprocal function is
+&asm_finish() which should be called at the end.
+
+There are 2 main 'packages'. x86ms.pl, which is the microsoft assembler,
+and x86unix.pl which is the unix (gas) version.
+
+Functions of interest are:
+&external_label("des_SPtrans"); declare and external variable
+&LB(reg); Low byte for a register
+&HB(reg); High byte for a register
+&BP(off,base,index,scale) Byte pointer addressing
+&DWP(off,base,index,scale) Word pointer addressing
+&stack_push(num) Basically a 'sub esp, num*4' with extra
+&stack_pop(num) inverse of stack_push
+&function_begin(name,extra) Start a function with pushing of
+ edi, esi, ebx and ebp. extra is extra win32
+ external info that may be required.
+&function_begin_B(name,extra) Same as norma function_begin but no pushing.
+&function_end(name) Call at end of function.
+&function_end_A(name) Standard pop and ret, for use inside functions
+&function_end_B(name) Call at end but with poping or 'ret'.
+&swtmp(num) Address on stack temp word.
+&wparam(num) Parameter number num, that was push
+ in C convention. This all works over pushes
+ and pops.
+&comment("hello there") Put in a comment.
+&label("loop") Refer to a label, normally a jmp target.
+&set_label("loop") Set a label at this point.
+&data_word(word) Put in a word of data.
+
+So how does this all hold together? Given
+
+int calc(int len, int *data)
+ {
+ int i,j=0;
+
+ for (i=0; i<len; i++)
+ {
+ j+=other(data[i]);
+ }
+ }
+
+So a very simple version of this function could be coded as
+
+ push(@INC,"perlasm","../../perlasm");
+ require "x86asm.pl";
+
+ &asm_init($ARGV[0],"cacl.pl");
+
+ &external_label("other");
+
+ $tmp1= "eax";
+ $j= "edi";
+ $data= "esi";
+ $i= "ebp";
+
+ &comment("a simple function");
+ &function_begin("calc");
+ &mov( $data, &wparam(1)); # data
+ &xor( $j, $j);
+ &xor( $i, $i);
+
+ &set_label("loop");
+ &cmp( $i, &wparam(0));
+ &jge( &label("end"));
+
+ &mov( $tmp1, &DWP(0,$data,$i,4));
+ &push( $tmp1);
+ &call( "other");
+ &add( $j, "eax");
+ &pop( $tmp1);
+ &inc( $i);
+ &jmp( &label("loop"));
+
+ &set_label("end");
+ &mov( "eax", $j);
+
+ &function_end("calc");
+
+ &asm_finish();
+
+The above example is very very unoptimised but gives an idea of how
+things work.
+
+There is also a cbc mode function generator in cbc.pl
+
+&cbc( $name,
+ $encrypt_function_name,
+ $decrypt_function_name,
+ $true_if_byte_swap_needed,
+ $parameter_number_for_iv,
+ $parameter_number_for_encrypt_flag,
+ $first_parameter_to_pass,
+ $second_parameter_to_pass,
+ $third_parameter_to_pass);
+
+So for example, given
+void BF_encrypt(BF_LONG *data,BF_KEY *key);
+void BF_decrypt(BF_LONG *data,BF_KEY *key);
+void BF_cbc_encrypt(unsigned char *in, unsigned char *out, long length,
+ BF_KEY *ks, unsigned char *iv, int enc);
+
+&cbc("BF_cbc_encrypt","BF_encrypt","BF_encrypt",1,4,5,3,-1,-1);
+
+&cbc("des_ncbc_encrypt","des_encrypt","des_encrypt",0,4,5,3,5,-1);
+&cbc("des_ede3_cbc_encrypt","des_encrypt3","des_decrypt3",0,6,7,3,4,5);
+
diff --git a/crypto/perlasm/x86asm.pl b/crypto/perlasm/x86asm.pl
new file mode 100644
index 0000000..d62c9bc
--- /dev/null
+++ b/crypto/perlasm/x86asm.pl
@@ -0,0 +1,113 @@
+#!/usr/local/bin/perl
+
+# require 'x86asm.pl';
+# &asm_init("cpp","des-586.pl");
+# XXX
+# XXX
+# main'asm_finish
+
+sub main'asm_finish
+ {
+ &file_end();
+ &asm_finish_cpp() if $cpp;
+ print &asm_get_output();
+ }
+
+sub main'asm_init
+ {
+ ($type,$fn)=@_;
+ $filename=$fn;
+
+ $cpp=$sol=$aout=$win32=0;
+ if ( ($type eq "elf"))
+ { require "x86unix.pl"; }
+ elsif ( ($type eq "a.out"))
+ { $aout=1; require "x86unix.pl"; }
+ elsif ( ($type eq "sol"))
+ { $sol=1; require "x86unix.pl"; }
+ elsif ( ($type eq "cpp"))
+ { $cpp=1; require "x86unix.pl"; }
+ elsif ( ($type eq "win32"))
+ { $win32=1; require "x86ms.pl"; }
+ else
+ {
+ print STDERR <<"EOF";
+Pick one target type from
+ elf - linux, FreeBSD etc
+ a.out - old linux
+ sol - x86 solaris
+ cpp - format so x86unix.cpp can be used
+ win32 - Windows 95/Windows NT
+EOF
+ exit(1);
+ }
+
+ &asm_init_output();
+
+&comment("Don't even think of reading this code");
+&comment("It was automatically generated by $filename");
+&comment("Which is a perl program used to generate the x86 assember for");
+&comment("any of elf, a.out, BSDI,Win32, or Solaris");
+&comment("eric <eay\@cryptsoft.com>");
+&comment("");
+
+ $filename =~ s/\.pl$//;
+ &file($filename);
+ }
+
+sub asm_finish_cpp
+ {
+ return unless $cpp;
+
+ local($tmp,$i);
+ foreach $i (&get_labels())
+ {
+ $tmp.="#define $i _$i\n";
+ }
+ print <<"EOF";
+/* Run the C pre-processor over this file with one of the following defined
+ * ELF - elf object files,
+ * OUT - a.out object files,
+ * BSDI - BSDI style a.out object files
+ * SOL - Solaris style elf
+ */
+
+#define TYPE(a,b) .type a,b
+#define SIZE(a,b) .size a,b
+
+#if defined(OUT) || defined(BSDI)
+$tmp
+#endif
+
+#ifdef OUT
+#define OK 1
+#define ALIGN 4
+#endif
+
+#ifdef BSDI
+#define OK 1
+#define ALIGN 4
+#undef SIZE
+#undef TYPE
+#define SIZE(a,b)
+#define TYPE(a,b)
+#endif
+
+#if defined(ELF) || defined(SOL)
+#define OK 1
+#define ALIGN 16
+#endif
+
+#ifndef OK
+You need to define one of
+ELF - elf systems - linux-elf, NetBSD and DG-UX
+OUT - a.out systems - linux-a.out and FreeBSD
+SOL - solaris systems, which are elf with strange comment lines
+BSDI - a.out with a very primative version of as.
+#endif
+
+/* Let the Assembler begin :-) */
+EOF
+ }
+
+1;
diff --git a/crypto/perlasm/x86ms.pl b/crypto/perlasm/x86ms.pl
index 558112e..b8b1909 100644
--- a/crypto/perlasm/x86ms.pl
+++ b/crypto/perlasm/x86ms.pl
@@ -24,6 +24,11 @@ $label="L000";
'dx', 'dh',
);
+sub main'asm_init_output { @out=(); }
+sub main'asm_get_output { return(@out); }
+sub main'get_labels { return(@labels); }
+sub main'external_label { push(@labels,@_); }
+
sub main'LB
{
(defined($lb{$_[0]})) || die "$_[0] does not have a 'low byte'\n";
@@ -36,11 +41,35 @@ sub main'HB
return($hb{$_[0]});
}
+sub main'BP
+ {
+ &get_mem("BYTE",@_);
+ }
+
sub main'DWP
{
- local($addr,$reg1,$reg2,$idx)=@_;
- local($t);
- local($ret)="DWORD PTR ";
+ &get_mem("DWORD",@_);
+ }
+
+sub main'stack_push
+ {
+ local($num)=@_;
+ $stack+=$num*4;
+ &main'sub("esp",$num*4);
+ }
+
+sub main'stack_pop
+ {
+ local($num)=@_;
+ $stack-=$num*4;
+ &main'add("esp",$num*4);
+ }
+
+sub get_mem
+ {
+ local($size,$addr,$reg1,$reg2,$idx)=@_;
+ local($t,$post);
+ local($ret)="$size PTR ";
$addr =~ s/^\s+//;
if ($addr =~ /^(.+)\+(.+)$/)
@@ -55,16 +84,22 @@ sub main'DWP
$reg1="$regs{$reg1}" if defined($regs{$reg1});
$reg2="$regs{$reg2}" if defined($regs{$reg2});
- $ret.=$addr if ($addr ne "") && ($addr ne 0);
+ if (($addr ne "") && ($addr ne 0))
+ {
+ if ($addr !~ /^-/)
+ { $ret.=$addr; }
+ else { $post=$addr; }
+ }
if ($reg2 ne "")
{
$t="";
$t="*$idx" if ($idx != 0);
- $ret.="[$reg2$t+$reg1]";
+ $reg1="+".$reg1 if ("$reg1$post" ne "");
+ $ret.="[$reg2$t$reg1$post]";
}
else
{
- $ret.="[$reg1]"
+ $ret.="[$reg1$post]"
}
return($ret);
}
@@ -76,34 +111,60 @@ sub main'or { &out2("or",@_); }
sub main'shl { &out2("shl",@_); }
sub main'shr { &out2("shr",@_); }
sub main'xor { &out2("xor",@_); }
+sub main'xorb { &out2("xor",@_); }
sub main'add { &out2("add",@_); }
+sub main'adc { &out2("adc",@_); }
sub main'sub { &out2("sub",@_); }
sub main'rotl { &out2("rol",@_); }
sub main'rotr { &out2("ror",@_); }
sub main'exch { &out2("xchg",@_); }
sub main'cmp { &out2("cmp",@_); }
+sub main'lea { &out2("lea",@_); }
+sub main'mul { &out1("mul",@_); }
+sub main'div { &out1("div",@_); }
sub main'dec { &out1("dec",@_); }
+sub main'inc { &out1("inc",@_); }
sub main'jmp { &out1("jmp",@_); }
+sub main'jmp_ptr { &out1p("jmp",@_); }
sub main'je { &out1("je",@_); }
+sub main'jle { &out1("jle",@_); }
sub main'jz { &out1("jz",@_); }
+sub main'jge { &out1("jge",@_); }
+sub main'jl { &out1("jl",@_); }
+sub main'jb { &out1("jb",@_); }
+sub main'jc { &out1("jc",@_); }
+sub main'jnc { &out1("jnc",@_); }
sub main'jnz { &out1("jnz",@_); }
-sub main'push { &out1("push",@_); }
+sub main'jne { &out1("jne",@_); }
+sub main'jno { &out1("jno",@_); }
+sub main'push { &out1("push",@_); $stack+=4; }
+sub main'pop { &out1("pop",@_); $stack-=4; }
+sub main'bswap { &out1("bswap",@_); &using486(); }
+sub main'not { &out1("not",@_); }
sub main'call { &out1("call",'_'.$_[0]); }
-
+sub main'ret { &out0("ret"); }
+sub main'nop { &out0("nop"); }
sub out2
{
local($name,$p1,$p2)=@_;
local($l,$t);
- print "\t$name\t";
+ push(@out,"\t$name\t");
$t=&conv($p1).",";
$l=length($t);
- print $t;
+ push(@out,$t);
$l=4-($l+9)/8;
- print "\t" x $l;
- print &conv($p2);
- print "\n";
+ push(@out,"\t" x $l);
+ push(@out,&conv($p2));
+ push(@out,"\n");
+ }
+
+sub out0
+ {
+ local($name)=@_;
+
+ push(@out,"\t$name\n");
}
sub out1
@@ -111,9 +172,7 @@ sub out1
local($name,$p1)=@_;
local($l,$t);
- print "\t$name\t";
- print &conv($p1);
- print "\n";
+ push(@out,"\t$name\t".&conv($p1)."\n");
}
sub conv
@@ -124,24 +183,32 @@ sub conv
return $p;
}
+sub using486
+ {
+ return if $using486;
+ $using486++;
+ grep(s/\.386/\.486/,@out);
+ }
+
sub main'file
{
local($file)=@_;
- print <<"EOF";
+ local($tmp)=<<"EOF";
TITLE $file.asm
.386
.model FLAT
EOF
+ push(@out,$tmp);
}
sub main'function_begin
{
- local($func,$num,$extra)=@_;
+ local($func,$extra)=@_;
- $params=$num*4;
+ push(@labels,$func);
- print <<"EOF";
+ local($tmp)=<<"EOF";
_TEXT SEGMENT
PUBLIC _$func
$extra
@@ -151,14 +218,29 @@ _$func PROC NEAR
push esi
push edi
EOF
+ push(@out,$tmp);
$stack=20;
}
+sub main'function_begin_B
+ {
+ local($func,$extra)=@_;
+
+ local($tmp)=<<"EOF";
+_TEXT SEGMENT
+PUBLIC _$func
+$extra
+_$func PROC NEAR
+EOF
+ push(@out,$tmp);
+ $stack=4;
+ }
+
sub main'function_end
{
local($func)=@_;
- print <<"EOF";
+ local($tmp)=<<"EOF";
pop edi
pop esi
pop ebx
@@ -167,38 +249,41 @@ sub main'function_end
_$func ENDP
_TEXT ENDS
EOF
+ push(@out,$tmp);
$stack=0;
%label=();
}
-sub main'function_end_A
+sub main'function_end_B
{
local($func)=@_;
- print <<"EOF";
- pop edi
- pop esi
- pop ebx
- pop ebp
- ret
+ local($tmp)=<<"EOF";
+_$func ENDP
+_TEXT ENDS
EOF
+ push(@out,$tmp);
+ $stack=0;
+ %label=();
}
-sub main'function_end_B
+sub main'function_end_A
{
local($func)=@_;
- print <<"EOF";
-_$func ENDP
-_TEXT ENDS
+ local($tmp)=<<"EOF";
+ pop edi
+ pop esi
+ pop ebx
+ pop ebp
+ ret
EOF
- $stack=0;
- %label=();
+ push(@out,$tmp);
}
sub main'file_end
{
- print "END\n"
+ push(@out,"END\n");
}
sub main'wparam
@@ -208,18 +293,24 @@ sub main'wparam
return(&main'DWP($stack+$num*4,"esp","",0));
}
-sub main'wtmp
+sub main'swtmp
{
- local($num)=@_;
-
- return(&main'DWP($stack+$params+$num*4,"esp","",0));
+ return(&main'DWP($_[0]*4,"esp","",0));
}
+# Should use swtmp, which is above esp. Linix can trash the stack above esp
+#sub main'wtmp
+# {
+# local($num)=@_;
+#
+# return(&main'DWP(-(($num+1)*4),"esp","",0));
+# }
+
sub main'comment
{
foreach (@_)
{
- print "\t; $_\n";
+ push(@out,"\t; $_\n");
}
}
@@ -240,10 +331,18 @@ sub main'set_label
$label{$_[0]}="${label}${_[0]}";
$label++;
}
- print "$label{$_[0]}:\n";
+ push(@out,"$label{$_[0]}:\n");
}
-sub main'file_end
- {
- print "END\n";
- }
+sub main'data_word
+ {
+ push(@out,"\tDD\t$_[0]\n");
+ }
+
+sub out1p
+ {
+ local($name,$p1)=@_;
+ local($l,$t);
+
+ push(@out,"\t$name\t ".&conv($p1)."\n");
+ }
diff --git a/crypto/perlasm/x86unix.pl b/crypto/perlasm/x86unix.pl
index 3426563..deb1185 100644
--- a/crypto/perlasm/x86unix.pl
+++ b/crypto/perlasm/x86unix.pl
@@ -1,6 +1,12 @@
#!/usr/local/bin/perl
-package x86ms;
+# Because the bswapl instruction is not supported for old assembers
+# (it was a new instruction for the 486), I've added .byte xxxx code
+# to put it in.
+# eric 24-Apr-1998
+#
+
+package x86unix;
$label="L000";
@@ -8,6 +14,11 @@ $align=($main'aout)?"4":"16";
$under=($main'aout)?"_":"";
$com_start=($main'sol)?"/":"#";
+sub main'asm_init_output { @out=(); }
+sub main'asm_get_output { return(@out); }
+sub main'get_labels { return(@labels); }
+sub main'external_label { push(@labels,@_); }
+
if ($main'cpp)
{
$align="ALIGN";
@@ -46,6 +57,17 @@ if ($main'cpp)
'esp', '%esp',
);
+%reg_val=(
+ 'eax', 0x00,
+ 'ebx', 0x03,
+ 'ecx', 0x01,
+ 'edx', 0x02,
+ 'esi', 0x06,
+ 'edi', 0x07,
+ 'ebp', 0x05,
+ 'esp', 0x04,
+ );
+
sub main'LB
{
(defined($lb{$_[0]})) || die "$_[0] does not have a 'low byte'\n";
@@ -62,48 +84,40 @@ sub main'DWP
{
local($addr,$reg1,$reg2,$idx)=@_;
-
$ret="";
-
$addr =~ s/(^|[+ \t])([A-Za-z_]+)($|[+ \t])/$1$under$2$3/;
-
$reg1="$regs{$reg1}" if defined($regs{$reg1});
$reg2="$regs{$reg2}" if defined($regs{$reg2});
$ret.=$addr if ($addr ne "") && ($addr ne 0);
if ($reg2 ne "")
- {
- $ret.="($reg1,$reg2,$idx)";
- }
+ { $ret.="($reg1,$reg2,$idx)"; }
else
- {
- $ret.="($reg1)"
- }
+ { $ret.="($reg1)" }
return($ret);
}
sub main'BP
{
- local($addr,$reg1,$reg2,$idx)=@_;
-
-
- $ret="";
-
- $addr =~ s/(^|[+ \t])([A-Za-z_]+)($|[+ \t])/$1$under$2$3/;
-
- $reg1="$regs{$reg1}" if defined($regs{$reg1});
- $reg2="$regs{$reg2}" if defined($regs{$reg2});
- $ret.=$addr if ($addr ne "") && ($addr ne 0);
- if ($reg2 ne "")
- {
- $ret.="($reg1,$reg2,$idx)";
- }
- else
- {
- $ret.="($reg1)"
- }
- return($ret);
+ return(&main'DWP(@_));
}
+#sub main'BP
+# {
+# local($addr,$reg1,$reg2,$idx)=@_;
+#
+# $ret="";
+#
+# $addr =~ s/(^|[+ \t])([A-Za-z_]+)($|[+ \t])/$1$under$2$3/;
+# $reg1="$regs{$reg1}" if defined($regs{$reg1});
+# $reg2="$regs{$reg2}" if defined($regs{$reg2});
+# $ret.=$addr if ($addr ne "") && ($addr ne 0);
+# if ($reg2 ne "")
+# { $ret.="($reg1,$reg2,$idx)"; }
+# else
+# { $ret.="($reg1)" }
+# return($ret);
+# }
+
sub main'mov { &out2("movl",@_); }
sub main'movb { &out2("movb",@_); }
sub main'and { &out2("andl",@_); }
@@ -111,45 +125,107 @@ sub main'or { &out2("orl",@_); }
sub main'shl { &out2("sall",@_); }
sub main'shr { &out2("shrl",@_); }
sub main'xor { &out2("xorl",@_); }
+sub main'xorb { &out2("xorb",@_); }
sub main'add { &out2("addl",@_); }
+sub main'adc { &out2("adcl",@_); }
sub main'sub { &out2("subl",@_); }
sub main'rotl { &out2("roll",@_); }
sub main'rotr { &out2("rorl",@_); }
sub main'exch { &out2("xchg",@_); }
sub main'cmp { &out2("cmpl",@_); }
+sub main'lea { &out2("leal",@_); }
+sub main'mul { &out1("mull",@_); }
+sub main'div { &out1("divl",@_); }
sub main'jmp { &out1("jmp",@_); }
+sub main'jmp_ptr { &out1p("jmp",@_); }
sub main'je { &out1("je",@_); }
+sub main'jle { &out1("jle",@_); }
sub main'jne { &out1("jne",@_); }
sub main'jnz { &out1("jnz",@_); }
sub main'jz { &out1("jz",@_); }
+sub main'jge { &out1("jge",@_); }
+sub main'jl { &out1("jl",@_); }
+sub main'jb { &out1("jb",@_); }
+sub main'jc { &out1("jc",@_); }
+sub main'jnc { &out1("jnc",@_); }
+sub main'jno { &out1("jno",@_); }
sub main'dec { &out1("decl",@_); }
-sub main'push { &out1("pushl",@_); }
+sub main'inc { &out1("incl",@_); }
+sub main'push { &out1("pushl",@_); $stack+=4; }
+sub main'pop { &out1("popl",@_); $stack-=4; }
+sub main'bswap { &out1("bswapl",@_); }
+sub main'not { &out1("notl",@_); }
sub main'call { &out1("call",$under.$_[0]); }
-
+sub main'ret { &out0("ret"); }
+sub main'nop { &out0("nop"); }
sub out2
{
local($name,$p1,$p2)=@_;
local($l,$ll,$t);
+ local(%special)=( "roll",0xD1C0,"rorl",0xD1C8,
+ "rcll",0xD1D0,"rcrl",0xD1D8,
+ "shll",0xD1E0,"shrl",0xD1E8,
+ "sarl",0xD1F8);
+
+ if ((defined($special{$name})) && defined($regs{$p1}) && ($p2 == 1))
+ {
+ $op=$special{$name}|$reg_val{$p1};
+ $tmp1=sprintf(".byte %d\n",($op>>8)&0xff);
+ $tmp2=sprintf(".byte %d\t",$op &0xff);
+ push(@out,$tmp1);
+ push(@out,$tmp2);
+
+ $p2=&conv($p2);
+ $p1=&conv($p1);
+ &main'comment("$name $p2 $p1");
+ return;
+ }
- print "\t$name\t";
+ push(@out,"\t$name\t");
$t=&conv($p2).",";
$l=length($t);
- print $t;
+ push(@out,$t);
$ll=4-($l+9)/8;
- print "\t" x $ll;
- print &conv($p1);
- print "\n";
+ $tmp1=sprintf("\t" x $ll);
+ push(@out,$tmp1);
+ push(@out,&conv($p1)."\n");
}
sub out1
{
local($name,$p1)=@_;
local($l,$t);
+ local(%special)=("bswapl",0x0FC8);
- print "\t$name\t";
- print &conv($p1);
- print "\n";
+ if ((defined($special{$name})) && defined($regs{$p1}))
+ {
+ $op=$special{$name}|$reg_val{$p1};
+ $tmp1=sprintf(".byte %d\n",($op>>8)&0xff);
+ $tmp2=sprintf(".byte %d\t",$op &0xff);
+ push(@out,$tmp1);
+ push(@out,$tmp2);
+
+ $p2=&conv($p2);
+ $p1=&conv($p1);
+ &main'comment("$name $p2 $p1");
+ return;
+ }
+
+ push(@out,"\t$name\t".&conv($p1)."\n");
+ }
+
+sub out1p
+ {
+ local($name,$p1)=@_;
+ local($l,$t);
+
+ push(@out,"\t$name\t*".&conv($p1)."\n");
+ }
+
+sub out0
+ {
+ push(@out,"\t$_[0]\n");
}
sub conv
@@ -160,7 +236,7 @@ sub conv
$p=$regs{$p} if (defined($regs{$p}));
- $p =~ s/^([0-9A-Fa-f]+)$/\$$1/;
+ $p =~ s/^(-{0,1}[0-9A-Fa-f]+)$/\$$1/;
$p =~ s/^(0x[0-9A-Fa-f]+)$/\$$1/;
return $p;
}
@@ -169,47 +245,69 @@ sub main'file
{
local($file)=@_;
- print <<"EOF";
+ local($tmp)=<<"EOF";
.file "$file.s"
.version "01.01"
gcc2_compiled.:
EOF
+ push(@out,$tmp);
}
sub main'function_begin
{
- local($func,$num)=@_;
-
- $params=$num*4;
+ local($func)=@_;
+ &main'external_label($func);
$func=$under.$func;
- print <<"EOF";
+ local($tmp)=<<"EOF";
.text
.align $align
.globl $func
EOF
+ push(@out,$tmp);
if ($main'cpp)
- { printf("\tTYPE($func,\@function)\n"); }
- else { printf("\t.type $func,\@function\n"); }
- print <<"EOF";
-$func:
+ { $tmp=push(@out,"\tTYPE($func,\@function)\n"); }
+ else { $tmp=push(@out,"\t.type\t$func,\@function\n"); }
+ push(@out,"$func:\n");
+ $tmp=<<"EOF";
pushl %ebp
pushl %ebx
pushl %esi
pushl %edi
EOF
+ push(@out,$tmp);
$stack=20;
}
+sub main'function_begin_B
+ {
+ local($func,$extra)=@_;
+
+ &main'external_label($func);
+ $func=$under.$func;
+
+ local($tmp)=<<"EOF";
+.text
+ .align $align
+.globl $func
+EOF
+ push(@out,$tmp);
+ if ($main'cpp)
+ { push(@out,"\tTYPE($func,\@function)\n"); }
+ else { push(@out,"\t.type $func,\@function\n"); }
+ push(@out,"$func:\n");
+ $stack=4;
+ }
+
sub main'function_end
{
local($func)=@_;
$func=$under.$func;
- print <<"EOF";
+ local($tmp)=<<"EOF";
popl %edi
popl %esi
popl %ebx
@@ -217,10 +315,11 @@ sub main'function_end
ret
.${func}_end:
EOF
+ push(@out,$tmp);
if ($main'cpp)
- { printf("\tSIZE($func,.${func}_end-$func)\n"); }
- else { printf("\t.size\t$func,.${func}_end-$func\n"); }
- print ".ident \"desasm.pl\"\n";
+ { push(@out,"\tSIZE($func,.${func}_end-$func)\n"); }
+ else { push(@out,"\t.size\t$func,.${func}_end-$func\n"); }
+ push(@out,".ident \"$func\"\n");
$stack=0;
%label=();
}
@@ -229,13 +328,14 @@ sub main'function_end_A
{
local($func)=@_;
- print <<"EOF";
+ local($tmp)=<<"EOF";
popl %edi
popl %esi
popl %ebx
popl %ebp
ret
EOF
+ push(@out,$tmp);
}
sub main'function_end_B
@@ -244,13 +344,11 @@ sub main'function_end_B
$func=$under.$func;
- print <<"EOF";
-.${func}_end:
-EOF
+ push(@out,".${func}_end:\n");
if ($main'cpp)
- { printf("\tSIZE($func,.${func}_end-$func)\n"); }
- else { printf("\t.size\t$func,.${func}_end-$func\n"); }
- print ".ident \"desasm.pl\"\n";
+ { push(@out,"\tSIZE($func,.${func}_end-$func)\n"); }
+ else { push(@out,"\t.size\t$func,.${func}_end-$func\n"); }
+ push(@out,".ident \"desasm.pl\"\n");
$stack=0;
%label=();
}
@@ -262,28 +360,41 @@ sub main'wparam
return(&main'DWP($stack+$num*4,"esp","",0));
}
-sub main'wtmp_b
+sub main'stack_push
{
- local($num,$b)=@_;
-
- return(&main'BP(-(($num+1)*4)+$b,"esp","",0));
+ local($num)=@_;
+ $stack+=$num*4;
+ &main'sub("esp",$num*4);
}
-sub main'wtmp
+sub main'stack_pop
{
local($num)=@_;
+ $stack-=$num*4;
+ &main'add("esp",$num*4);
+ }
- return(&main'DWP(-($num+1)*4,"esp","",0));
+sub main'swtmp
+ {
+ return(&main'DWP($_[0]*4,"esp","",0));
}
+# Should use swtmp, which is above esp. Linix can trash the stack above esp
+#sub main'wtmp
+# {
+# local($num)=@_;
+#
+# return(&main'DWP(-($num+1)*4,"esp","",0));
+# }
+
sub main'comment
{
foreach (@_)
{
if (/^\s*$/)
- { print "\n"; }
+ { push(@out,"\n"); }
else
- { print "\t$com_start $_ $com_end\n"; }
+ { push(@out,"\t$com_start $_ $com_end\n"); }
}
}
@@ -304,10 +415,15 @@ sub main'set_label
$label{$_[0]}=".${label}${_[0]}";
$label++;
}
- print ".align $align\n";
- print "$label{$_[0]}:\n";
+ push(@out,".align $align\n") if ($_[1] != 0);
+ push(@out,"$label{$_[0]}:\n");
}
sub main'file_end
{
}
+
+sub main'data_word
+ {
+ push(@out,"\t.long $_[0]\n");
+ }