58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
#include "decl.h"
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#include <alloc.h>
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/* This file contains some routines needed in "pars.g" to handle the action-
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* grammarrule. The assembler-instructions are handeld in blocks rather than
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* one at a time. So these routines provide saving and removing of assembler-
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* instructions.
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*/
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char **as_instructions; /* The buffer(?) where the instructions are saved */
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int quantum = 0, /* Max. nr. of instructions in as_instructions[] */
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nr_instr, /* Number of saved instructions */
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first_action, /* Is this block of assembler-instr. the first after
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* a '==>'?
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*/
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last_action; /* Is this block followed by a '.' ? */
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init_as_block()
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{
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nr_instr = 0;
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if ( quantum == 0) {
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quantum = 16;
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as_instructions = (char **)Malloc( quantum*sizeof( char *));
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}
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}
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save_as( instr)
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char *instr;
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/* Save a copy of 'instr'
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*/
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{
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if ( nr_instr == quantum) {
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quantum *= 2;
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as_instructions = (char **) Realloc( (char *) as_instructions,
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quantum*sizeof( char *));
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}
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as_instructions[nr_instr++] = Salloc( instr, strlen( instr) + 1);
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}
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do_block_assemble()
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{
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int i;
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if ( nr_instr > 0) {
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block_assemble( as_instructions, nr_instr,
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first_action, last_action);
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for ( i=0; i<nr_instr; i++)
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free( as_instructions[i]);
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}
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}
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