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/* MIX simulator, copyright 1994 by Darius Bacon */
#include "mix.h"
#include "asm.h"
#include "run.h" /* for memory[] */
/* --- The assembly buffer --- */
Address here = 0;
Cell asm_fetch_field(Address address, unsigned L, unsigned R)
{
assert(address < memory_size);
return field(make_field_spec(L, R), memory[address]);
}
#include <stdio.h>
void asm_store_field(Address address, unsigned L, unsigned R, Cell cell)
{
assert(address < memory_size);
if (VERBOSE) {
char temp[12];
unparse_cell(temp, cell);
printf("%4o(%u,%u): %s\n", address, L, R, temp);
}
memory[address] = set_field(cell, make_field_spec(L, R), memory[address]);
}
void assemble(Cell cell)
{
if (VERBOSE) {
char temp[12];
unparse_cell(temp, cell);
printf("%4o: %s\n", here, temp);
}
if (here < memory_size)
memory[here] = cell;
else
error("Address out of range");
++here;
}
Address entry_point;
void set_entry_point(Address address)
{
assert(address < memory_size);
if (VERBOSE)
printf("entry point: %4o\n", address);
entry_point = address;
}
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