61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
#include <ctype.h>
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#include <system.h>
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#include "em_decl.h"
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/* This file contains the assemble routine that generates assembly code.
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* As 'str' is in assembly format this is a easy job. Only operands
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* with "$n" in it need some special treatment.
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* Note : a '$' is qouted by prefixing it with a '$'.
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*/
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assemble( str)
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char *str;
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/* Output assembly instruction. Substitute for '$n' the name of the
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* the n-th argument of the current EM-instruction.
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*/
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{
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char buf[512] , *b_ptr, *arg_format();
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int nr;
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b_ptr = buf;
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out( "fprint( codefile,\"");
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while ( *str) {
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switch ( *str) {
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case '$' : if ( *(str+1) == '$') {
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*b_ptr++ = '$';
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str = str + 2;
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}
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else {
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nr = atoi( str+1) - 1;
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*b_ptr = '\0';
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out( "%s%s\", %s%s);", buf,
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arg_format( nr),
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C_instr_info->arg_type[nr] == ARITH ? "(long)" : "",
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C_instr_info->arg_conv[nr]);
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out( "fprint( codefile,\"");
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b_ptr = buf;
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str = str + 2;
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}
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break;
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default : *b_ptr++ = *str++;
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}
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}
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*b_ptr = '\0';
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out( "%s\\n\");\n", buf);
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}
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char *arg_format( nr)
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int nr;
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{
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switch ( C_instr_info->arg_type[nr]) {
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case ARITH : return( "%ld");
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case STRING: return( "%s");
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case INT : return( "%d");
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}
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/*NOTREACHED*/
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}
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