ack/mach/z8000/cg/mach.c
2019-05-11 01:11:26 +08:00

100 lines
1.7 KiB
C

/* $Id$ */
/*
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
* See the copyright notice in the ACK home directory, in the file "Copyright".
*
*/
/*
* machine dependent back end routines for the z8000
*/
void con_part(register int sz, word w)
{
while (part_size % sz)
part_size++;
if (part_size == TEM_WSIZE)
part_flush();
if (sz == 1) {
w &= 0xFF;
if (part_size == 0)
w <<= 8;
part_word |= w;
} else {
assert(sz == 2);
part_word = w;
}
part_size += sz;
}
void con_mult(word sz)
{
if (sz != 4)
fatal("bad icon/ucon size");
fprintf(codefile,"\t.data4 %s\n", str);
}
void con_float(void)
{
static int been_here;
if (argval != 4 && argval != 8)
fatal("bad fcon size");
fprintf(codefile,"\t.data4 ");
if (argval == 8)
fprintf(codefile,"F_DUM, ");
fprintf(codefile,"F_DUM\n");
if ( !been_here++)
{
fprintf(stderr,"Warning : dummy float-constant(s)\n");
}
}
/*
string holstr(n) word n; {
sprintf(str,hol_off,n,holno);
return(mystrcpy(str));
}
*/
void prolog(full nlocals)
{
fprintf(codefile,"\tpush\t*RR14, R13\n\tld\tR13, R15\n");
if (nlocals == 0)
return;
else
fprintf(codefile,"\tsub\tR15, $%d\n",nlocals);
}
void mes(word type)
{
int argt ;
switch ( (int)type ) {
case ms_ext :
for (;;) {
switch ( argt=getarg(
ptyp(sp_cend)|ptyp(sp_pnam)|sym_ptyp) ) {
case sp_cend :
return ;
default:
strarg(argt) ;
printf(".define %s\n",argstr) ;
break ;
}
}
default :
while ( getarg(any_ptyp) != sp_cend ) ;
break ;
}
}
char *segname[] = {
".sect .text", /* SEGTXT */
".sect .data", /* SEGCON */
".sect .rom", /* SEGROM */
".sect .bss" /* SEGBSS */
};