X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?p=rmac;a=blobdiff_plain;f=eagen0.c;h=5597eb0781c58bdf95fd7ebc067bb28f320fcc78;hp=a9b6f7ee496a181cb43384eae8c7af2835b6dc09;hb=5cd8a4814b805f1ef8ce689423eb5eeba12573c5;hpb=51cff2ac6cb3d097f62b68c51d74fafbce8923f6 diff --git a/eagen0.c b/eagen0.c index a9b6f7e..5597eb0 100644 --- a/eagen0.c +++ b/eagen0.c @@ -9,9 +9,12 @@ int eaNgen(WORD siz) { - VALUE v = aNexval; - WORD w = (WORD)(aNexattr & DEFINED); - WORD tdb = (WORD)(aNexattr & TDB); + VALUE vbd, v = aNexval; + WORD wbd, w = (WORD)(aNexattr & DEFINED); + WORD tdbbd, tdb = (WORD)(aNexattr & TDB); + vbd = aNbdexval; + wbd = (WORD)(aNbdexattr & DEFINED); + tdbbd = (WORD)(aNbdexattr & TDB); switch (amN) { @@ -212,6 +215,10 @@ int eaNgen(WORD siz) } break; + case SIZP: + // 68881/68882/68040 only + return error("Sorry, .p constant format is not implemented yet!"); + break; case ABSW: if (w) // Defined { @@ -251,7 +258,100 @@ int eaNgen(WORD siz) case PCBASE: case PCMPOST: case PCMPRE: - return error("unsupported 68020 addressing mode"); + D_word(aNexten); + // Deposit bd (if not suppressed) + if ((aNexten&0x0030)==EXT_BDSIZE0) + { + // Don't deposit anything (suppressed) + } + else if ((aNexten&0x0030)==EXT_BDSIZEW) + { + // Deposit word bd + if (wbd) + { + // Just deposit it + if (tdb) + MarkRelocatable(cursect, sloc, tdbbd, MWORD, NULL); + + if (vbd + 0x8000 >= 0x10000) + return error(range_error); + + D_word(vbd); + } + else + { + // Arrange for fixup later on + AddFixup(FU_WORD|FU_SEXT, sloc, aNexpr); + D_word(0); + } + } + else + { + // Deposit long bd + if (wbd) + { + // Just deposit it + if (tdbbd) + MarkRelocatable(cursect, sloc, tdbbd, MLONG, NULL); + + D_long(vbd); + } + else + { + // Arrange for fixup later on + AddFixup(FU_LONG|FU_SEXT, sloc, aNexpr); + D_long(0); + } + } + // Deposit od (if not suppressed) + 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) + { + // Deposit word od + if (w) + { + // Just deposit it + if (tdb) + MarkRelocatable(cursect, sloc, tdb, MWORD, NULL); + + if (v + 0x8000 >= 0x10000) + return error(range_error); + + D_word(v); + } + else + { + // Arrange for fixup later on + AddFixup(FU_WORD|FU_SEXT, sloc, aNexpr); + D_word(0); + } + } + else + { + // Deposit long od + if (w) + { + // Just deposit it + if (tdb) + MarkRelocatable(cursect, sloc, tdb, MLONG, NULL); + + D_long(v); + } + else + { + // Arrange for fixup later on + AddFixup(FU_LONG|FU_SEXT, sloc, aNexpr); + D_long(0); + } + } + + break; + //return error("unsupported 68020 addressing mode"); default: // Bad addressing mode in ea gen interror(3); @@ -268,5 +368,8 @@ int eaNgen(WORD siz) #undef aNexpr #undef aNixreg #undef aNixsiz +#undef aNexten +#undef aNbdexval +#undef aNbdexattr #undef AnESYM