// RMAC - Reboot's Macro Assembler for all Atari computers
// EAGEN0.C - Effective Address Code Generation
// Generated Code for eaN (Included twice by "eagen.c")
-// Copyright (C) 199x Landon Dyer, 2011-2017 Reboot and Friends
+// Copyright (C) 199x Landon Dyer, 2011-2018 Reboot and Friends
// RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986
// Source utilised with the kind permission of Landon Dyer
//
int eaNgen(WORD siz)
{
- VALUE vbd, v = aNexval;
+ uint32_t vbd, v = (uint32_t)aNexval;
WORD wbd, w = (WORD)(aNexattr & DEFINED);
WORD tdbbd, tdb = (WORD)(aNexattr & TDB);
- vbd = aNbdexval;
+ vbd = (uint32_t)aNbdexval;
wbd = (WORD)(aNbdexattr & DEFINED);
tdbbd = (WORD)(aNbdexattr & TDB);
+ uint8_t extDbl[12];
switch (amN)
{
if (tdb)
MarkRelocatable(cursect, sloc, tdb, MWORD, NULL);
- if ((v == 0) && optim_flags[OPT_INDIRECT_DISP] && !movep)
+ if ((v == 0) && CHECK_OPTS(OPT_INDIRECT_DISP) && !movep)
{
// If expr is 0, size optimise the opcode. Generally the lower
// 6 bits of the opcode for expr(ax) are 101rrr where rrr=the
{
// Just deposit it
if ((aNexattr & TDB) == cursect)
- v -= (VALUE)sloc;
+ v -= (uint32_t)sloc;
else if ((aNexattr & TDB) != ABS)
error(rel_error);
{
// Deposit a byte...
if ((aNexattr & TDB) == cursect)
- v -= (VALUE)sloc;
+ v -= (uint32_t)sloc;
else if ((aNexattr & TDB) != ABS)
error(rel_error);
if (v + 0x100 >= 0x200)
return error(range_error);
- D_word(v);
+ D_word(v & 0xFF);
}
else
{
D_long(0);
}
+ break;
+ case SIZS:
+ // 68881/68882/68040 only
+ if (w)
+ {
+ if (tdb)
+ MarkRelocatable(cursect, sloc, tdb, MSINGLE, NULL);
+
+ // The value passed back from expr() is an internal C double;
+ // so we have to access it as such then convert it to an
+ // IEEE-754 float so we can store it as such in the instruction
+ // stream here.
+ PTR p;
+ p.u64 = &aNexval;
+ float f = (float)*p.dp;
+ uint32_t ieee754 = FloatToIEEE754(f);
+ D_long(ieee754);
+ }
+ else
+ {
+ AddFixup(FU_FLOATSING, sloc, aNexpr);
+ D_long(0); // IEEE-754 zero is all zeroes
+ }
+
+ break;
+ case SIZD:
+ // 68881/68882/68040 only
+ if (w)
+ {
+ if (tdb)
+ MarkRelocatable(cursect, sloc, tdb, MDOUBLE, NULL);
+
+ PTR p;
+ p.u64 = &aNexval;
+ double d = *p.dp;
+ uint64_t ieee754 = DoubleToIEEE754(d);
+ D_quad(ieee754);
+ }
+ else
+ {
+ AddFixup(FU_FLOATDOUB, sloc, aNexpr);
+ D_quad(0LL); // IEEE-754 zero is all zeroes
+ }
+
+ break;
+ case SIZX:
+ // 68881/68882/68040 only
+ if (w)
+ {
+ if (tdb)
+ MarkRelocatable(cursect, sloc, tdb, MEXTEND, NULL);
+
+ PTR p;
+ p.u64 = &aNexval;
+ DoubleToExtended(*p.dp, extDbl);
+ D_extend(extDbl);
+ }
+ else
+ {
+ AddFixup(FU_FLOATDOUB, sloc, aNexpr);
+ memset(extDbl, 0, 12);
+ D_extend(extDbl);
+ }
+
break;
default:
// IMMED size problem
break;
case DINDW:
- D_word(0x190|(aNixreg<<12));
+ D_word((0x190 | (aNixreg << 12)));
break;
case DINDL:
- D_word(0x990|(aNixreg<<12));
+ D_word((0x990 | (aNixreg << 12)));
break;
case ABASE:
case MEMPOST:
case PCMPRE:
D_word(aNexten);
// Deposit bd (if not suppressed)
- if ((aNexten&0x0030)==EXT_BDSIZE0)
+ if ((aNexten & 0x0030) == EXT_BDSIZE0)
{
// Don't deposit anything (suppressed)
}
- else if ((aNexten&0x0030)==EXT_BDSIZEW)
+ else if ((aNexten & 0x0030) == EXT_BDSIZEW)
{
// Deposit word bd
if (wbd)
else
{
// Arrange for fixup later on
- AddFixup(FU_WORD|FU_SEXT, sloc, aNbexpr);
+ AddFixup(FU_WORD | FU_SEXT, sloc, aNbexpr);
D_word(0);
}
}
}
}
// Deposit od (if not suppressed)
- if ((aNexten&7)==EXT_IISPRE0 || (aNexten&7)==EXT_IISPREN
- || (aNexten&7)==EXT_IISNOIN || (aNexten&7)==EXT_IISPOSN)
+ if ((aNexten & 7) == EXT_IISPRE0 || (aNexten & 7) == EXT_IISPREN
+ || (aNexten & 7) == EXT_IISNOIN || (aNexten & 7) == EXT_IISPOSN)
{
// Don't deposit anything (suppressed)
}
- else if ((aNexten&7)==EXT_IISPREW
- || (aNexten&7)==EXT_IISPOSW || (aNexten&7)==EXT_IISNOIW)
+ else if ((aNexten & 7) == EXT_IISPREW
+ || (aNexten & 7) == EXT_IISPOSW || (aNexten & 7) == EXT_IISNOIW)
{
// Deposit word od
if (w)
else
{
// Arrange for fixup later on
- AddFixup(FU_WORD|FU_SEXT, sloc, aNexpr);
+ AddFixup(FU_WORD | FU_SEXT, sloc, aNexpr);
D_word(0);
}
}
else
{
// Arrange for fixup later on
- AddFixup(FU_LONG|FU_SEXT, sloc, aNexpr);
+ AddFixup(FU_LONG | FU_SEXT, sloc, aNexpr);
D_long(0);
}
}