213 lines
3.4 KiB
C
213 lines
3.4 KiB
C
/*
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* Sources of the "LOAD" group instructions
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*/
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/* $Header$ */
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#include <em_abs.h>
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#include "global.h"
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#include "log.h"
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#include "mem.h"
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#include "trap.h"
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#include "text.h"
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#include "fra.h"
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#include "rsb.h"
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#include "warn.h"
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PRIVATE ptr lexback_LB();
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DoLOC(l)
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register long l;
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{
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/* LOC c: Load constant (i.e. push one word onto the stack) */
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LOG(("@L6 DoLOC(%ld)", l));
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spoilFRA();
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wpush(arg_c(l));
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}
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DoLDC(l)
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register long l;
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{
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/* LDC d: Load double constant ( push two words ) */
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LOG(("@L6 DoLDC(%ld)", l));
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spoilFRA();
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l = arg_d(l);
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npush(l, dwsize);
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}
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DoLOL(l)
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register long l;
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{
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/* LOL l: Load word at l-th local (l<0) or parameter (l>=0) */
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LOG(("@L6 DoLOL(%ld)", l));
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spoilFRA();
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l = arg_l(l);
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pushw_st(loc_addr(l));
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}
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DoLOE(arg)
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register long arg;
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{
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/* LOE g: Load external word g */
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register ptr p = i2p(arg);
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LOG(("@L6 DoLOE(%lu)", p));
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spoilFRA();
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pushw_m(arg_g(p));
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}
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DoLIL(l)
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register long l;
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{
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/* LIL l: Load word pointed to by l-th local or parameter */
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LOG(("@L6 DoLIL(%ld)", l));
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spoilFRA();
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l = arg_l(l);
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pushw_m(st_lddp(loc_addr(l)));
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}
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DoLOF(l)
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register long l;
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{
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/* LOF f: Load offsetted (top of stack + f yield address) */
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register ptr p = dppop();
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LOG(("@L6 DoLOF(%ld)", l));
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spoilFRA();
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pushw_m(p + arg_f(l));
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}
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DoLAL(l)
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register long l;
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{
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/* LAL l: Load address of local or parameter */
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LOG(("@L6 DoLAL(%ld)", l));
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spoilFRA();
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l = arg_l(l);
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dppush(loc_addr(l));
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}
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DoLAE(arg)
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register unsigned long arg;
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{
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/* LAE g: Load address of external */
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register ptr p = i2p(arg);
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LOG(("@L6 DoLAE(%lu)", p));
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spoilFRA();
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dppush(arg_lae(p));
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}
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DoLXL(l)
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register unsigned long l;
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{
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/* LXL n: Load lexical (address of LB n static levels back) */
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register ptr p;
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LOG(("@L6 DoLXL(%lu)", l));
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spoilFRA();
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l = arg_n(l);
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p = lexback_LB(l);
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dppush(p);
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}
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DoLXA(l)
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register unsigned long l;
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{
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/* LXA n: Load lexical (address of AB n static levels back) */
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register ptr p;
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LOG(("@L6 DoLXA(%lu)", l));
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spoilFRA();
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l = arg_n(l);
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p = lexback_LB(l);
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dppush(p + rsbsize);
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}
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DoLOI(l)
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register size l;
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{
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/* LOI o: Load indirect o bytes (address is popped from the stack) */
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register ptr p = dppop();
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LOG(("@L6 DoLOI(%ld)", l));
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spoilFRA();
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l = arg_o(l);
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push_m(p, l);
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}
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DoLOS(l)
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register size l;
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{
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/* LOS w: Load indirect, w-byte integer on top of stack gives object size */
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register ptr p;
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LOG(("@L6 DoLOS(%ld)", l));
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spoilFRA();
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l = arg_wi(l);
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l = upop(l);
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p = dppop();
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push_m(p, arg_o(l));
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}
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DoLDL(l)
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register long l;
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{
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/* LDL l: Load double local or parameter (two consecutive words are stacked) */
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LOG(("@L6 DoLDL(%ld)", l));
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spoilFRA();
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l = arg_l(l);
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push_st(loc_addr(l), dwsize);
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}
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DoLDE(arg)
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register long arg;
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{
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/* LDE g: Load double external (two consecutive externals are stacked) */
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register ptr p = i2p(arg);
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LOG(("@L6 DoLDE(%lu)", p));
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spoilFRA();
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push_m(arg_g(p), dwsize);
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}
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DoLDF(l)
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register long l;
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{
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/* LDF f: Load double offsetted (top of stack + f yield address) */
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register ptr p = dppop();
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LOG(("@L6 DoLDF(%ld)", l));
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spoilFRA();
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push_m(p + arg_f(l), dwsize);
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}
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DoLPI(pi)
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register long pi;
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{
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/* LPI p: Load procedure identifier */
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LOG(("@L6 DoLPI(%ld)", pi));
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spoilFRA();
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npush(arg_p(pi), psize);
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}
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PRIVATE ptr lexback_LB(n)
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unsigned long n;
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{
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/* LB n static levels back */
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register ptr lb = LB;
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while (n != 0) {
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lb = st_lddp(lb + rsbsize);
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n--;
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}
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return lb;
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}
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