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