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hide some VAX-ce specific names

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This commit is contained in:
ceriel 1991-01-22 13:28:21 +00:00
parent 2094dcecfe
commit ff766530eb
2 changed files with 4 additions and 93 deletions
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4
mach/vax4/ce/as.c
View file

@ -226,7 +226,7 @@ register struct t_operand *op;
} }
} }
else { else {
@as_const(%$(op->const)); @__as_const(%$(op->const));
} }
break; break;
case REGISTER: @text1( %d(0x50 | op->num)); case REGISTER: @text1( %d(0x50 | op->num));
@ -253,7 +253,7 @@ register struct t_operand *op;
} }
} }
else { else {
@as_indexed(%$(op->index) , %d(op->num)); @__as_indexed(%$(op->index) , %d(op->num));
} }
break; break;
case LABEL : @text1( 0xef); case LABEL : @text1( 0xef);

93
mach/vax4/ce/mach.c
View file

@ -13,37 +13,17 @@ int arg;
} }
#endif #endif
#define OWNFLOAT /* compile on VAX, generate code for VAX FP ... */
con_float(str, argval) con_float(str, argval)
char *str; char *str;
int argval; int argval;
{ {
#ifdef NOFLOAT
static int been_here;
if (argval != 4 && argval != 8)
arg_error("fcon", argval);
if (argval == 8)
gen4((FOUR_BYTES) 0);
gen4((FOUR_BYTES) 0);
if ( !been_here++)
{
fprint(STDERR, "Warning : dummy float-constant(s)\n");
}
#else
double f; double f;
double atof(); double atof();
int i; int i;
int j; int j;
double frexp(); double frexp();
#ifndef OWNFLOAT
int sign = 0;
int fraction[4] ;
#else OWNFLOAT
float fl; float fl;
char *p; char *p;
#endif OWNFLOAT
if (argval!= 4 && argval!= 8) { if (argval!= 4 && argval!= 8) {
arg_error("fcon", argval); arg_error("fcon", argval);
@ -55,7 +35,6 @@ static int been_here;
gen4((FOUR_BYTES) 0); gen4((FOUR_BYTES) 0);
return; return;
} }
#ifdef OWNFLOAT
if (argval == 4) { if (argval == 4) {
/* careful: avoid overflow */ /* careful: avoid overflow */
fl = frexp(f, &i); fl = frexp(f, &i);
@ -86,77 +65,9 @@ static int been_here;
for (i = argval-1; i; i--) { for (i = argval-1; i; i--) {
gen1(*p++&0377); gen1(*p++&0377);
} }
#else OWNFLOAT
f = frexp(f, &i);
if (f < 0) {
f = -f;
sign = 1;
}
while (f < 0.5) {
f += f;
i --;
}
f = 2*f - 1.0; /* hidden bit */
i--; /* exponent is one lower for SUN floating point! */
#ifdef IEEEFLOAT
if (argval == 4) {
#endif IEEEFLOAT
i = (i + 128) & 0377;
fraction[0] = (sign << 15) | (i << 7);
for (j = 6; j>= 0; j--) {
f *= 2;
if (f >= 1.0) {
f -= 1.0;
fraction[0] |= (1 << j);
}
}
#ifdef IEEEFLOAT
}
else {
i = (i + 1024) & 03777;
fraction[0] = (sign << 15) | (i << 4);
for (j = 3; j>= 0; j--) {
f *= 2;
if (f >= 1.0) {
fraction[0] |= (1 << j);
f -= 1.0;
}
}
}
#endif IEEEFLOAT
for (i = 1; i < argval / 2; i++) {
fraction[i] = 0;
for (j = 15; j>= 0; j--) {
f *= 2;
if (f >= 1.0) {
fraction[i] |= (1 << j);
f -= 1.0;
}
}
}
if (f >= 0.5) {
for (i = argval/2 - 1; i >= 0; i--) {
for (j = 0; j < 16; j++) {
if (fraction[i] & (1 << j)) {
fraction[i] &= ~(1 << j);
}
else {
fraction[i] |= (1 << j);
break;
}
}
if (j != 16) break;
}
}
for (i = 0; i < argval/2; i++) {
gen1(fraction[i]&0377);
gen1((fraction[i]>>8)&0377);
}
#endif OWNFLOAT
#endif
} }
as_indexed(val, num) __as_indexed(val, num)
{ {
if (fit_byte(val)) { if (fit_byte(val)) {
text1( 0xa0 | num); text1( 0xa0 | num);
@ -170,7 +81,7 @@ as_indexed(val, num)
} }
} }
as_const(val) __as_const(val)
{ {
if (fit_6bits(val)) { if (fit_6bits(val)) {
text1(val); text1(val);