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fmovecr now actually works 

a cursory boot of 3.0.0 didn't reveal any asserts, except for x11. And I'm sure Marathon will die, and Mathematica, etc. Calculator works though. IE 2 hangs, and finder shutdown crashes.

... getting there
This commit is contained in:
Peter Rutenbar 2014-11-06 01:12:28 -05:00
parent 18c5a2b261
commit df66c085da
1 changed files with 31 additions and 27 deletions
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58
core/newfpu.c
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@ -237,6 +237,11 @@ static _Bool _bsun_test()
return 1;
}
static void _throw_illegal_instruction()
{
assert(!"throw_illegal_instruction!");
}
#pragma mark Float format translators (to/from big-endian motorola format)
static void _floatx80_to_int8(floatx80 *f, uint8_t *ptr)
@ -404,12 +409,12 @@ static void _fpu_write_ea(uint8_t mr, uint8_t format, floatx80 *f, uint8_t K)
if ((m == 1) ||
((m == 0) && (size > 4))) {
/* If mode==a-reg, or mode==data reg and the size is > 4 bytes, no dice */
throw_illegal_instruction();
_throw_illegal_instruction();
return ;
}
else if ((m == 7) && (r > 1)) {
/* If this is otherwise an illegal addr mode... */
throw_illegal_instruction();
_throw_illegal_instruction();
return ;
}
@ -623,14 +628,14 @@ static _Bool _fpu_read_ea(const uint8_t format, float128 *result)
* No other format can be used with a data register
* (because they require >4 bytes)
*/
throw_illegal_instruction();
_throw_illegal_instruction();
return 0;
}
goto got_data;
case 1:
/* Address regisers can't be used */
throw_illegal_instruction();
_throw_illegal_instruction();
return 0;
case 3:
@ -714,7 +719,7 @@ got_address:
// case format_Pd: // not possible as a src specifier
// FIXME: implement packed formats
assert(!"Somebody tried to use a packed format!\n");
// throw_illegal_instruction();
// _throw_illegal_instruction();
// return 0;
default:
assert(0); // never get here
@ -1577,7 +1582,7 @@ static void inst_fmath (const uint16_t ext)
/* Throw illegal instruction for 040-only ops */
if (_fmath_flags[e] & FMATH_TYPE_68040) {
throw_illegal_instruction();
_throw_illegal_instruction();
return;
}
@ -1596,23 +1601,10 @@ static void inst_fmath (const uint16_t ext)
if (_fmath_map[e] == NULL) {
/* Unless this is fmovecr, where the extension doesn't matter */
if (!(src_in_ea && (source_specifier == 7))) {
throw_illegal_instruction();
_throw_illegal_instruction();
return ;
}
}
/*
* Read in the source from the EA or from a register.
* In either case, convert the value to a float128,
* (that's our version of the 85-bit "intermediate" format)
*/
if (src_in_ea) {
if (!_fpu_read_ea(source_specifier, &fpu->source))
return ;
}
else
fpu->source = floatx80_to_float128(fpu->fp[source_specifier]);
/* We only need to load the dest reg for dyadic ops */
if (_fmath_flags[e] & FMATH_TYPE_DYADIC)
@ -1658,6 +1650,18 @@ static void inst_fmath (const uint16_t ext)
goto computation_done;
}
/*
* Read in the source from the EA or from a register.
* In either case, convert the value to a float128,
* (that's our version of the 85-bit "intermediate" format)
*/
if (src_in_ea) {
if (!_fpu_read_ea(source_specifier, &fpu->source))
return ;
}
else
fpu->source = floatx80_to_float128(fpu->fp[source_specifier]);
/*
* If the source is NaN, or this is a dyadic (two-operand)
* instruction, and the second operand (fpu->dest) is NaN,
@ -1785,7 +1789,7 @@ static void inst_fmovem_control (const uint16_t ext)
/* data and addr reg modes are valid, but only if count==1 */
if ((m == 0 || m == 1) && (count > 1)) {
throw_illegal_instruction();
_throw_illegal_instruction();
return ;
}
@ -1799,14 +1803,14 @@ static void inst_fmovem_control (const uint16_t ext)
if (count == 1)
shoe.d[r] = buf[0];
else
throw_illegal_instruction();
_throw_illegal_instruction();
return ;
}
else if (m == 1) {
if ((count == 1) && I)
shoe.a[r] = buf[0];
else
throw_illegal_instruction();
_throw_illegal_instruction();
return ;
}
else if (m == 3)
@ -1816,7 +1820,7 @@ static void inst_fmovem_control (const uint16_t ext)
else {
if ((m==7) && (r!=0 || r!=1)) {
/* Not allowed for reg->mem */
throw_illegal_instruction();
_throw_illegal_instruction();
return;
}
call_ea_addr(M);
@ -1834,14 +1838,14 @@ static void inst_fmovem_control (const uint16_t ext)
if (count == 1)
buf[0] = shoe.d[r];
else
throw_illegal_instruction();
_throw_illegal_instruction();
return;
}
else if (m == 1) {// addr reg
if ((count == 1) && I)
buf[0] = shoe.a[r];
else
throw_illegal_instruction();
_throw_illegal_instruction();
return;
}
else {
@ -2249,7 +2253,7 @@ void inst_fpu_other () {
return;
case 1: // unused
throw_illegal_instruction();
_throw_illegal_instruction();
return;
case 2: // Memory->reg & movec