Fix inc/dec operations on accessors.
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@ -718,6 +718,7 @@ SC_FUNC void pushval(cell val);
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SC_FUNC void popreg(regid reg);
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SC_FUNC void genarray(int dims, int _autozero);
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SC_FUNC void swap1(void);
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SC_FUNC void xchg(void);
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SC_FUNC void ffswitch(int label);
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SC_FUNC void ffcase(cell value,char *labelname,int newtable);
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SC_FUNC void ffcall(symbol *sym,const char *label,int numargs);
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@ -218,6 +218,7 @@ static void (*unopers[])(void) = { lneg, neg, user_inc, user_dec };
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assert(lval!=NULL);
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if (lval->ident==iARRAYCELL || lval->ident==iARRAYCHAR)
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pushreg(sPRI); /* save current address in PRI */
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if (lval->ident!=iACCESSOR)
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rvalue(lval); /* get the symbol's value in PRI */
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} /* if */
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@ -277,8 +278,10 @@ static void (*unopers[])(void) = { lneg, neg, user_inc, user_dec };
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assert(lval!=NULL);
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if (lval->ident==iARRAYCELL || lval->ident==iARRAYCHAR)
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popreg(sALT); /* restore address (in ALT) */
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if (lval->ident!=iACCESSOR) {
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store(lval); /* store PRI in the symbol */
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moveto1(); /* make sure PRI is restored on exit */
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}
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} /* if */
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return TRUE;
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}
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@ -1901,10 +1904,15 @@ static int hier2(value *lval)
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} else {
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pushreg(sPRI); // save obj
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invoke_getter(lval->accessor);
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swap1(); // pri = obj, stack = [oldval]
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pushreg(sPRI); // pri = obj, stack = [oldval, obj]
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move_alt(); // alt = oldval
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swap1(); // pri = saved obj, stack = [oldval]
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pushreg(sPRI); // pri = obj, alt = oldval, stack = [obj, oldval]
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moveto1(); // pri = oldval, stack = [obj, oldval]
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// check_userop on an iACCESSOR acts as though the value is an rvalue.
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if (!check_userop(user_inc, lval->tag, 0, 1, lval, &lval->tag))
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inc_pri();
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popreg(sALT);
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invoke_setter(lval->accessor, FALSE);
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popreg(sPRI);
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@ -1932,10 +1940,15 @@ static int hier2(value *lval)
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} else {
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pushreg(sPRI); // save obj
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invoke_getter(lval->accessor);
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swap1(); // pri = obj, stack = [oldval]
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pushreg(sPRI); // pri = obj, stack = [oldval, obj]
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move_alt(); // alt = oldval
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swap1(); // pri = saved obj, stack = [oldval]
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pushreg(sPRI); // pri = obj, alt = oldval, stack = [obj, oldval]
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moveto1(); // pri = oldval, stack = [obj, oldval]
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// check_userop on an iACCESSOR acts as though the value is an rvalue.
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if (!check_userop(user_dec, lval->tag, 0, 1, lval, &lval->tag))
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dec_pri();
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popreg(sALT);
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invoke_setter(lval->accessor, FALSE);
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popreg(sPRI);
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@ -1394,6 +1394,12 @@ SC_FUNC void jmp_eq0(int number)
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code_idx+=opcodes(1)+opargs(1);
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}
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SC_FUNC void xchg(void)
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{
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stgwrite("\txchg\n");
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code_idx+=opcodes(1);
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}
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/* write a value in hexadecimal; optionally adds a newline */
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SC_FUNC void outval(cell val,int newline)
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{
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