181 lines
3.1 KiB
C
181 lines
3.1 KiB
C
#include <ctype.h>
|
|
#include <system.h>
|
|
#if __STDC__
|
|
#include <stdarg.h>
|
|
extern out(char *, ...);
|
|
#else
|
|
#include <varargs.h>
|
|
#endif
|
|
|
|
#define CODE_EXPANDER
|
|
#include "em.h"
|
|
|
|
#include "decl.h"
|
|
|
|
extern int library;
|
|
extern File *outfile;
|
|
|
|
/* This file contains some routines called from the parser in 'pars.g' */
|
|
|
|
question( str)
|
|
char *str;
|
|
|
|
/* Print : "if ( <str> ) {"
|
|
*/
|
|
{
|
|
register char c;
|
|
int arg_nr;
|
|
|
|
out( "if ( ");
|
|
for ( c = *str++; c != '\0'; c= *str++)
|
|
if ( c == '$' && isdigit( *str)) {
|
|
|
|
arg_nr = *str++ - '0' - 1;
|
|
out( "%s", C_instr_info->arg_id[arg_nr]);
|
|
}
|
|
else
|
|
out( "%c", c);
|
|
|
|
out( ") {\n");
|
|
}
|
|
|
|
extern arith cur_pos;
|
|
extern int segment;
|
|
|
|
print_call( str)
|
|
char *str;
|
|
|
|
/* Print 'str' and handle the $i's. Also count the number of text-bytes
|
|
* that are generated, look for text?() and reloc?() calls.
|
|
*/
|
|
{
|
|
register char c;
|
|
int arg_nr;
|
|
extern int no_conversions;
|
|
|
|
if ( strncmp( "text", str, 4) == 0 && isdigit( *(str+4)))
|
|
cur_pos += *(str+4) - '0';
|
|
else if ( strncmp( "reloc", str, 5) == 0 && isdigit( *(str+5)) &&
|
|
segment == SEGTXT)
|
|
cur_pos += *(str+5) - '0';
|
|
|
|
for ( c = *str++; c != '\0'; c= *str++)
|
|
if ( c == '$' && isdigit( *str)) {
|
|
|
|
arg_nr = *str++ - '0' - 1;
|
|
if ( no_conversions)
|
|
out( "%s", C_instr_info->arg_id[arg_nr]);
|
|
else
|
|
out( "%s", C_instr_info->arg_conv[arg_nr]);
|
|
}
|
|
else
|
|
out( "%c", c);
|
|
|
|
out( ";\n");
|
|
}
|
|
|
|
|
|
header( instr)
|
|
char *instr;
|
|
{
|
|
out( "void %s%s", instr, C_instr_info->header);
|
|
def_admn( instr);
|
|
}
|
|
|
|
|
|
set_segment( seg)
|
|
int seg;
|
|
{
|
|
switch ( seg) {
|
|
case SEGTXT : out( "switchseg( SEGTXT);\n");
|
|
break;
|
|
case SEGBSS : out( "switchseg( SEGBSS);\n");
|
|
out( "dump_label();\n");
|
|
break;
|
|
case SEGHOL : out( "switchseg( SEGHOL);\n");
|
|
break;
|
|
case SEGCON : out( "switchseg( SEGCON);\n");
|
|
out( "dump_label();\n");
|
|
break;
|
|
case SEGROM : out( "switchseg( SEGROM);\n");
|
|
out( "dump_label();\n");
|
|
break;
|
|
case UNKNOWN : break; /* dan niet! */
|
|
}
|
|
}
|
|
|
|
#if __STDC__
|
|
/*VARARGS*/
|
|
out(char *fmt, ...)
|
|
{
|
|
va_list pvar;
|
|
|
|
va_start(pvar, fmt);
|
|
doprnt( outfile, fmt, pvar);
|
|
va_end(pvar);
|
|
}
|
|
#else
|
|
/*VARARGS*/
|
|
out(va_alist)
|
|
va_dcl
|
|
{
|
|
va_list pvar;
|
|
char *fmt;
|
|
|
|
va_start(pvar);
|
|
fmt = va_arg(pvar, char *);
|
|
doprnt( outfile, fmt, pvar);
|
|
va_end(pvar);
|
|
}
|
|
#endif
|
|
|
|
char *suffix( str, suf)
|
|
char *str, *suf;
|
|
{
|
|
static char res[15];
|
|
char *s, *strncpy(), *strcat();
|
|
int strl, sufl, prefl;
|
|
|
|
strl = strlen( str);
|
|
sufl = strlen( suf);
|
|
|
|
for ( s = str + strl; --s >= str && *s != '.';)
|
|
;
|
|
|
|
if ( *s == '.')
|
|
prefl = s - str;
|
|
else
|
|
prefl = strl;
|
|
|
|
if ( prefl + sufl + 1 > 14 )
|
|
prefl = 14 - 1 - sufl;
|
|
|
|
strncpy( res, str, prefl);
|
|
res[prefl] = '\0';
|
|
s = strcat( res, ".");
|
|
s = strcat( s, suf);
|
|
return( s);
|
|
}
|
|
|
|
|
|
set_outfile( name)
|
|
char *name;
|
|
{
|
|
if ( library) {
|
|
name = suffix( name, "c");
|
|
sys_close( outfile);
|
|
if ( !sys_open( name, OP_WRITE, &outfile))
|
|
fprint( STDERR, "!! can't create %s !!\n", name);
|
|
file_header();
|
|
}
|
|
}
|
|
|
|
|
|
file_header()
|
|
{
|
|
out( "#define CODE_EXPANDER\n");
|
|
out( "#include \"mach.h\"\n");
|
|
out( "#include \"back.h\"\n\n");
|
|
out( "extern int B_holno, B_procno;\n\n");
|
|
}
|