2014年末、mamomamoさんから bug fix のご提供がありました。改行コードの 問題で Windows 環境では一部正しくバイナリが出力されないケースがあった ようです。2015/3/2現在、最新版に置き換えました。mamomamoさん、ありがとう ございます。
以下ソースまでの文章は付属ドキュメント"yasm.doc"より抜粋。
まず perl ver.5 以降が必要です(たぶん)。YASM の使い方は
基本的には
perl yasm.pl [source]
です。sh,csh 系のシェルの場合は実行属性をつけて直接、
yasm.pl [source]
で構いません。(yasm.pl の一行目はみなさんの環境に合わせて
編集して下さい。) [source] は本アセンブラでアセンブルしたい
アセンブリ言語のソースファイルで、ファイル名が .s か .asmで
終わっている必要があります。指定しない場合は標準入力から読み
込みます。2パスのアセンブルが終了すると、特に指定がなければ
標準出力にダンプリスト(!)を出力します。(8バイト毎にチェック
サムまで表示します。いやぁ〜、いたれり、つくせり、ですね!)
出力ファイルなどを陽に指定したい場合はスイッチを用いて下さい。
書式は
yasm [switches] [source]
となります。(現バージョンでは [switches] と [source] の順序に
制限はありません。) スイッチは以下のものが使えます。
【switches】
-d dumplist dumplist で指定したファイルにダンプリストを
出力します。省略時は標準出力に出力します。
-w wavfile wavfile で指定したファイルに CLOADM ようの
wavファイルを出力します。省略時は出力しません。
-r rawfile rawfile で指定したファイルに生バイナリを書き出し
ます。空きエリアは 0x00 で埋められます。
-old PC-1245/125x 等の旧機種ようスイッチです。wav
ファイル生成時のみに影響します。
例)
yasm.pl -d dump.txt -w csavem.wav -r raw.bin source.s
#!/usr/bin/perl
%opcode=(
DB => -1,
DW => -1,
DS => -1,
LII => 0x00,
LIJ => 0x01,
LIA => 0x02,
LIB => 0x03,
IX => 0x04,
DX => 0x05,
IY => 0x06,
DY => 0x07,
MVW => 0x08,
EXW => 0x09,
MVB => 0x0a,
EXB => 0x0b,
ADN => 0x0c,
SBN => 0x0d,
ADW => 0x0e,
SBW => 0x0f,
LIDP => 0x10,
LIDL => 0x11,
LIP => 0x12,
LIQ => 0x13,
ADB => 0x14,
SBB => 0x15,
MVWD => 0x18,
EXWD => 0x19,
MVBD => 0x1a,
EXBD => 0x1b,
SRW => 0x1c,
SLW => 0x1d,
FILM => 0x1e,
FILD => 0x1f,
LDP => 0x20,
LDQ => 0x21,
LDR => 0x22,
CLRA => 0x23,
IXL => 0x24,
DXL => 0x25,
IYS => 0x26,
DYS => 0x27,
JRNZP=> 0x28,
JRNZM=> 0x29,
JRNCP=> 0x2a,
JRNCM=> 0x2b,
JRP => 0x2c,
JRM => 0x2d,
LOOP => 0x2f,
STP => 0x30,
STQ => 0x31,
STR => 0x32,
PUSH => 0x34,
RST => 0x35,
DATA => 0x35,
RTN => 0x37,
JRZP => 0x38,
JRZM => 0x39,
JRCP => 0x3a,
JRCM => 0x3b,
INCI => 0x40,
DECI => 0x41,
INCA => 0x42,
DECA => 0x43,
ADM => 0x44,
SBM => 0x45,
ANMA => 0x46,
ORMA => 0x47,
INCK => 0x48,
DECK => 0x49,
INCM => 0x4a,
DECM => 0x4b,
INA => 0x4c,
NOPW => 0x4d,
WAIT => 0x4e,
CUP => 0x4f,
INCP => 0x50,
DECP => 0x51,
STD => 0x52,
MVDM => 0x53,
READM=> 0x54,
MVMD => 0x55,
READ => 0x56,
LDD => 0x57,
SWP => 0x58,
LDM => 0x59,
SL => 0x5a,
POP => 0x5b,
OUTA => 0x5d,
OUTF => 0x5f,
ANIM => 0x60,
ORIM => 0x61,
TSIM => 0x62,
CPIM => 0x63,
ANIA => 0x64,
ORIA => 0x65,
TSIA => 0x66,
CPIA => 0x67,
CASE2=> 0x69,
JST => 0x69,
TEST => 0x6b,
CDN => 0x6f,
ADIM => 0x70,
SBIM => 0x71,
ADIA => 0x74,
SBIA => 0x75,
CALL => 0x78,
JP => 0x79,
CASE1=> 0x7a,
SETT => 0x7a,
JPNZ => 0x7c,
JPNC => 0x7d,
JPZ => 0x7e,
JPC => 0x7f,
INCJ => 0xc0,
DECJ => 0xc1,
INCB => 0xc2,
DECB => 0xc3,
ADCM => 0xc4,
SBCM => 0xc5,
TSMA => 0xc6,
CPMA => 0xc7,
INCL => 0xc8,
DECL => 0xc9,
INCN => 0xca,
DECN => 0xcb,
INB => 0xcc,
NOPT => 0xce,
SC => 0xd0,
RC => 0xd1,
SR => 0xd2,
ANID => 0xd4,
ORID => 0xd5,
TSID => 0xd6,
LEAVE=> 0xd8,
EXAB => 0xda,
EXAM => 0xdb,
OUTB => 0xdd,
OUTC => 0xdf,
LP => 0x80,
CAL => 0xe0
);
%operand1=( # mnemonic => # of bytes
LII => 2, LIJ => 2, LIA => 2,
LIB => 2, LIDL => 2, LIP => 2,
LIQ => 2, JRNZP=> 2, JRNZM=> 2,
JRNCP=> 2, JRNCM=> 2, JRP => 2,
JRM => 2, LOOP => 2, JRZP => 2,
JRZM => 2, JRCP => 2, JRCM => 2,
WAIT => 2, ANIM => 2, ORIM => 2,
TSIM => 2, CPIM => 2, ANIA => 2,
ORIA => 2, TSIA => 2, CPIA => 2,
TEST => 2, ADIM => 2, SBIM => 2,
ADIA => 2, SBIA => 2, LP => 1,
ANID => 2, ORID => 2, TSID => 2,
LIDP => 3, CALL => 3, JP => 3,
JPNZ => 3, JPNC => 3, JPZ => 3,
JPC => 3, CAL => 2
);
%operandn=(
DB => 0, DW => 0, DS => 0
);
#
# START
#
print "\nYagshi's SC61860 assembler YASM61860 version 1.0\n";
sleep(1);
for($i=0; $i<=$#ARGV; $i++){
if ($ARGV[$i] eq "-w"){
$wavfile=$ARGV[++$i];
next;
}
if ($ARGV[$i] eq "-d"){
$dumpfile=$ARGV[++$i];
next;
}
if ($ARGV[$i]=~/^.*\.s/i or $ARGV[$i]=~/^.*\.asm/i){
$sfile=$ARGV[$i];
next;
}
if ($ARGV[$i] eq "-old" ){
$oldwav=1;
next;
}
die "usage: yasm.pl [-w wavfile.wav] [-d dumplist.txt] [sourcefile.s]\n";
}
if( defined $wavfile ){
open(WAV,"> $wavfile")
or die "ERROR: cannot create wav file \"$wavfile\".\n";
binmode WAV;
}
if( defined $dumpfile ){
open(DUMP,"> $dumpfile")
or die "ERROR: cannot create dump list file \"$dumpfile\".\n";
$dump=DUMP;
}else{
$dump=STDOUT;
}
if( defined $sfile ){
open(SOURCE,"<$sfile")
or die "ERROR: cannot open source file \"$sfile\".\n";
$source=SOURCE;
}else{
$source=STDIN;
}
print "pass 1\n";
$pcc=0;
$l=1;
PASS1LP:while(<$source>){
chop;
s/\t/ /g; # replace TAB with SPC
s/ *[^\\][#;].*$//; # remove comment
s/^[#;].*$//; # remove comment
s/ / /g; # make space single
s/^ *//; # remove head space
undef $thislabel;
if( /^[^ ]+:/ || /^[^ ]+ EQU /i){
$thislabel=$_;
$thislabel=~s/ .*//;
$thislabel=~s/:.*//;
die "ERROR: multiple definitioin of $thislabel.\n"
if !($label{$thislabel} eq "");
$label{$thislabel}=$pcc;
if(/^[^ ]+ EQU /i){
$label{$thislabel}=evaluate($');
$_="";
}
printf "%10s \$%04x\n",$thislabel,$label{$thislabel};
s/^[^ ]+://;
s/^ *//;
}
next if /^$/;
$opr[$l] = $_;
$opr[$l] =~ s/^[^ ]+ //;
s/ .*$//;
if( /ORG/i ){
die "ERROR: ORG cannot be labeled.($thislabel)\n"
if !($thislabel eq "");
$pcc=evaluate($opr[$l]);
die "ERROR: Illegal ORG address($pcc).\n"
if $pcc<0 || $pcc>0xffff;
$opr[$l]="";
$inst[$l]="";
next PASS1LP;
}
$_=uc($_);
$inst[$l]=$_;
$addr[$l]=$pcc;
die "ERROR: undefined instruction $_.\n" unless defined $opcode{$_};
if(defined $operand1{$_}){
$pcc += $operand1{$_};
}
elsif(defined $operandn{$_}){
if( /DB/i or /DW/i ){
my $tmp=",".$opr[$l];
until( $tmp eq "" ){
$tmp=~s/^,//;
die "ERROR: Illegal DB/DW syntax.\n"
if( $& ne "," or $tmp eq "");
evaluate_expression($tmp);
$pcc += 1 if /DB/i;
$pcc += 2 if /DW/i;
}
}
if( /DS/i ){
my $tmp=$opr[$l];
$pcc+=evaluate_expression($tmp);
if($tmp ne ""){
$tmp=~s/^,//;
die "ERROR: Illegal DS syntax in $l.\n"
if $& ne ",";
evaluate($tmp);
}
}
}
else {
die "ERROR: $_ requires no operand in $l.\n"
if( uc($opr[$l]) ne $_);
$opr[$l]="";
$pcc ++;
}
} continue {
$l++;
}
$lines=$l;
print "pass 2\n";
for($l=1,$p=0; $l<$lines; $binlen[$l++]=$p-$p0 ){
$p0=$p; # binlen calc you
next if !$inst[$l];
$bin[$p++]= $opcode{$inst[$l]} unless $opcode{$inst[$l]}==-1;
next if $opr[$l] eq "";
$_ = $inst[$l];
if( /^JP/ || /CALL/ || /LIDP/ ){
$ea=evaluate($opr[$l]);
die "ERROR: Illegal address($ea) in line $l.\n"
if $ea<0 || $ea>0xffff;
$bin[$p++]=($ea>>8);
$bin[$p++]=($ea&0xff);
} elsif ( /^JR/ || /LOOP/ ){
$ea=evaluate($opr[$l]);
$ea=$ea-$addr[$l]-1 if /^JR.*P/;
$ea=$addr[$l]+1-$ea if /^JR.*M/ || /^LOOP$/ ;
die "ERROR: Illegal relative address($ea) in line $l.\n"
if $ea<0 or $ea>0xff;
$bin[$p++]=$ea;
} elsif ( /^CAL$/ ){
$ea=evaluate($opr[$l]);
die "ERROR: CAL address out of range in line $l.\n"
if $ea<0 or $ea>0x1fff;
$bin[$p-1]=($ea>>8) + 0xe0;
$bin[$p++]=$ea & 0xff;
} elsif ( /^LP$/ ){
$ea=evaluate($opr[$l]);
die "ERROR: Illegal operand of LP in line $l.\n"
if $ea<0 || $ea>63;
$bin[$p-1]=0x80+$ea;
} elsif( /^DB$/ or /^DW$/ ){
my $tmp=$opr[$l];
$tmp = ",".$tmp;
until( $tmp eq "" ){
$tmp=~s/^,//;
$data = evaluate_expression($tmp);
die "ERROR: value out or range in line $l.\n"
if( $data<0 or $data > 0xffff or ($data > 0xff and /DB/) );
$bin[$p++] = ($data>>8) & 0xff if /DW/;
$bin[$p++] = $data & 0xff;
}
} elsif( /^DS$/ ){
my $tmp=$opr[$l];
$dsl =evaluate_expression($tmp);
$dsd =0;
if($tmp ne ""){
$tmp=~s/^,//;
$dsd=evaluate($tmp);
die "ERROR: value out of range in line $l.\n"
if $dsd<0 or $dsd>0xff;
}
for($i=0; $i<$dsl; $i++){
$bin[$p++]=$dsd;
}
} else {
$ea=evaluate($opr[$l]);
die "ERROR: Illegal operand($ea) in line $l.\n"
if ($ea<0 or $ea>0xff);
$bin[$p++]=$ea;
}
}
print "complete.";
dumpout();
print "\n";
wavout() if defined $wavfile;
sub evaluate{
my $expression=$_[0];
my $expval = evaluate_expression($expression);
die "ERROR: wrong expression.($_[0]) in $l\n"
unless $expression eq "";
return $expval;
}
sub evaluate_expression{
evaluate_or_expression($_[0]);
}
sub evaluate_or_expression{
my $val=evaluate_xor_expression($_[0]);
while($_[0]=~s/^ *\| *//){
$val=$val | evaluate_xor_expression($_[0]);
}
return $val;
}
sub evaluate_xor_expression{
my $val=evaluate_and_expression($_[0]);
while($_[0]=~s/^ *\^ *//){
$val=$val ^ evaluate_and_expression($_[0]);
}
return $val;
}
sub evaluate_and_expression{
my $val=evaluate_shift_expression($_[0]);
while($_[0]=~s/^ *\& *//){
$val=$val & evaluate_shift_expression($_[0]);
}
return $val;
}
sub evaluate_shift_expression{
my $val=evaluate_additive_expression($_[0]);
while($_[0]=~/^ *>>/ || $_[0]=~/^ *<><<][>><<]//;
$op=$&;
$_[0]=~s/^ *//;
$val=$val >> evaluate_additive_expression($_[0])
if $op=~/>>/;
$val=$val << evaluate_additive_expression($_[0])
if $op=~/<>3<<3;
for($i=0;$i<$ad%8; $i++){
print $dump " ";
}
}
$sum+=$bin[$p];
printf $dump "%02x ",$bin[$p++];
printf $dump ": %02x\n",$sum&0xff and $sum=0 if $pcc%8==7;
$pcc++;
}
}
}
sub wavout{
$topaddr=0xffff;
$endaddr=0x0000;
for($l=1;$l<$lines;$l++){
$topl=$l and $topaddr=$addr[$l] if $topaddr>=$addr[$l] and defined $addr[$l];
$endl=$l and $endaddr=$addr[$l] if $endaddr<=$addr[$l] and defined $addr[$l];
}
$endaddr+=$binlen[$endl]-1;
$wl = ($endaddr-$topaddr+1+22+int(($endaddr-$topaddr+1)/120))
*16*16+0x400*16;
# header(ID,filename,addr,etc)+footer($ff,$ff,chksum)
# lead
$wl = ($endaddr-$topaddr+1+19+int(($endaddr-$topaddr+1)/8))
*19*16+0x400*16 if $oldwav;
# header(ID,filename,addr,etc)+footer($f0)
# lead
$w1="\xff\x00\xff\x00\xff\x00\xff\x00\xff\x00\xff\x00\xff\x00\xff\x00";
$w0="\xff\xff\x00\x00\xff\xff\x00\x00\xff\xff\x00\x00\xff\xff\x00\x00";
$sum=0;
$sc=0;
print WAV "RIFF";
$wl = $wl +44-4; # all(header:44+$wl) - 4
printf WAV "%c%c%c%c"
,$wl&0xff,($wl>>8)&0xff,($wl>>16)&0xff,($wl>>24)&0xff;
$wl = $wl -44+4;
print WAV "WAVEfmt ";
print WAV "\x10\x00\x00\x00";
print WAV "\x01\x00"; # PCM
print WAV "\x01\x00"; # mono
print WAV "\x40\x1f\x00\x00"; # sampling freq. = 8000Hz
print WAV "\x40\x1f\x00\x00"; # byte / sec.
print WAV "\x01\x00"; # byte / sample x channel
print WAV "\x08\x00"; # bit / sample
print WAV "data";
printf WAV "%c%c%c%c"
,$wl&0xff,($wl>>8)&0xff,($wl>>16)&0xff,($wl>>24)&0xff;
for( $i=0; $i<0x400; $i++ ){
print WAV $w1;
}
write1byte(0x67) unless $oldwav; # newer PC
write1byte(0x26) if $oldwav; # 1245/125x
$sum=0;
unless($oldwav){
write1(ord('I'));
write1(ord('H'));
write1(ord('S'));
write1(ord('G'));
write1(ord('A'));
write1(ord('Y'));
write1(0xf5);
write1(0xf5);
writesum();
} else {
write1(0);
write1(0);
write1(0);
write1(0);
write1(0);
write1(0);
write1(0);
write1(0x5f);
resetsum();
}
write1(0);
write1(0);
write1(0);
write1(0);
unless ($oldwav){
write1($topaddr>>8 & 0xff);
write1($topaddr & 0xff);
write1(($endaddr-$topaddr)>>8&0xff);
write1(($endaddr-$topaddr)&0xff);
writesum();
} else { # PC-1245/125x
write1($topaddr>>12 | ($topaddr>>4 &0xf0));
write1(($topaddr<<4&0xf0) | ($topaddr>>4&0x0f));
write1(($endaddr-$topaddr)>>12 | (($endaddr-$topaddr)>>4 &0xf0));
write1((($endaddr-$topaddr)<<4&0xf0) | (($endaddr-$topaddr)>>4&0x0f));
resetsum();
}
$ad=$topaddr;
WAVLOOP0: while($ad<=$endaddr){
$l=1;
$p=0;
while($ad!=$addr[$l]){
$p+=$binlen[$l];
$l++;
if($l==$lines){
write1(0);
$ad++;
next WAVLOOP0;
}
}
while($ad==$addr[$l]){
for($i=0; $i<$binlen[$l];$i++){
write1($bin[$p]>>4&0x0f | $bin[$p]<<4&0xf0) unless $oldwav;
write1($bin[$p]) if $oldwav;
$p++;
$ad++;
}
$l++;
}
}
unless( $oldwav ){
$sc=0;
write1(0xff);
$tmpsum=$sum;
write1(0xff);
$sum=$tmpsum;
writesum();
} else { # PC-1245/125x
write1byte(0xf0);
}
}
sub write1{
write1byte($_[0]);
unless($oldwav){
$sum+=($_[0]&0xf);
$sum=($sum+1)&0xff if $sum>0xff;
$sum=($sum+($_[0]>>4&0xf))&0xff;
}else{
$sum+=($_[0]&0xf0)>>4;
$sum=($sum+1)&0xff if $sum>0xff;
$sum=($sum+($_[0]&0xf))&0xff;
}
$sc++;
writesum() if $sc%8==0 and $oldwav;
writesum() if ($sc>=120 and not $oldwav);
}
sub writesum{
unless($oldwav){
$tmp=(($sum & 0x0f)<<4)+(($sum & 0xf0)>>4);
write1byte($tmp);
resetsum();
}else{ # PC-1245/125x
write1byte($sum);
resetsum() if $sc>=80;
}
return 1;
}
sub resetsum{
$sum=$sc=0;
}
sub write1byte{
unless($oldwav){
print WAV $w0;
$_[0] & 0x1 and print WAV $w1 or print WAV $w0;
$_[0] & 0x2 and print WAV $w1 or print WAV $w0;
$_[0] & 0x4 and print WAV $w1 or print WAV $w0;
$_[0] & 0x8 and print WAV $w1 or print WAV $w0;
print WAV $w1,$w0;
$_[0] & 0x10 and print WAV $w1 or print WAV $w0;
$_[0] & 0x20 and print WAV $w1 or print WAV $w0;
$_[0] & 0x40 and print WAV $w1 or print WAV $w0;
$_[0] & 0x80 and print WAV $w1 or print WAV $w0;
print WAV $w1,$w1,$w1,$w1,$w1;
} else { # PC-1245/125x
print WAV $w0;
$_[0] & 0x10 and print WAV $w1 or print WAV $w0;
$_[0] & 0x20 and print WAV $w1 or print WAV $w0;
$_[0] & 0x40 and print WAV $w1 or print WAV $w0;
$_[0] & 0x80 and print WAV $w1 or print WAV $w0;
print WAV $w1,$w1,$w1,$w1,$w0;
$_[0] & 0x1 and print WAV $w1 or print WAV $w0;
$_[0] & 0x2 and print WAV $w1 or print WAV $w0;
$_[0] & 0x4 and print WAV $w1 or print WAV $w0;
$_[0] & 0x8 and print WAV $w1 or print WAV $w0;
print WAV $w1,$w1,$w1,$w1,$w1;
}
}