X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?p=rmac;a=blobdiff_plain;f=mach.c;h=b3e36c7dc382c93b84599a1979f8da85920c7280;hp=e0640e554a6bdcbd2a1bf2772535fef15e8bf5e7;hb=917bfc1503181b7e762b73b9560bb834c12c64fa;hpb=bae665568253091714d5b32ad634d9024f40ee10 diff --git a/mach.c b/mach.c index e0640e5..b3e36c7 100644 --- a/mach.c +++ b/mach.c @@ -3,7 +3,7 @@ // MACH.C - Code Generation // Copyright (C) 199x Landon Dyer, 2011 Reboot and Friends // RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986 -// Source Utilised with the Kind Permission of Landon Dyer +// Source utilised with the kind permission of Landon Dyer // #include "mach.h" @@ -13,6 +13,7 @@ #include "token.h" #include "procln.h" #include "riscasm.h" +#include "rmac.h" #define DEF_KW #include "kwtab.h" @@ -307,7 +308,7 @@ int m_shi(WORD inst, WORD siz) } else { - fixup(FU_QUICK, sloc, a0expr); + AddFixup(FU_QUICK, sloc, a0expr); D_word(inst); } @@ -372,7 +373,7 @@ int m_dbra(WORD inst, WORD siz) } else { - fixup(FU_WORD | FU_PCREL | FU_ISBRA, sloc, a1expr); + AddFixup(FU_WORD | FU_PCREL | FU_ISBRA, sloc, a1expr); D_word(0); } @@ -439,10 +440,12 @@ int m_move(WORD inst, WORD size) int siz = (int)size; // Try to optimize to MOVEQ - if (siz == SIZL && am0 == IMMED && am1 == DREG + if (optim_flag && siz == SIZL && am0 == IMMED && am1 == DREG && (a0exattr & (TDB|DEFINED)) == DEFINED && a0exval + 0x80 < 0x100) { m_moveq((WORD)0x7000, (WORD)0); + if (sbra_flag) + warn("move.l #size,dx converted to moveq"); } else { @@ -489,7 +492,7 @@ int m_moveq(WORD inst, WORD siz) // Arrange for future fixup if (!(a0exattr & DEFINED)) { - fixup(FU_BYTE | FU_SEXT, sloc + 1, a0expr); + AddFixup(FU_BYTE | FU_SEXT, sloc + 1, a0expr); a0exval = 0; } else if (a0exval + 0x100 >= 0x200) @@ -545,18 +548,23 @@ int m_br(WORD inst, WORD siz) if (a0exattr & DEFINED) { if ((a0exattr & TDB) != cursect) +//{ +//printf("m_br(): a0exattr = %X, cursect = %X, a0exval = %X, sloc = %X\n", a0exattr, cursect, a0exval, sloc); return error(rel_error); +//} v = a0exval - (sloc + 2); // Optimize branch instr. size if (siz == SIZN) { - if (v != 0 && v + 0x80 < 0x100) + if (optim_flag && v != 0 && v + 0x80 < 0x100) { // Fits in .B inst |= v & 0xFF; D_word(inst); + if (sbra_flag) + warn("Bcc.w/BSR.w converted to .s"); return 0; } else @@ -596,7 +604,7 @@ int m_br(WORD inst, WORD siz) if (siz == SIZB) { // .B - fixup(FU_BBRA | FU_PCREL | FU_SEXT, sloc, a0expr); + AddFixup(FU_BBRA | FU_PCREL | FU_SEXT, sloc, a0expr); D_word(inst); return 0; } @@ -604,7 +612,7 @@ int m_br(WORD inst, WORD siz) { // .W D_word(inst); - fixup(FU_WORD | FU_PCREL | FU_LBRA | FU_ISBRA, sloc, a0expr); + AddFixup(FU_WORD | FU_PCREL | FU_LBRA | FU_ISBRA, sloc, a0expr); D_word(0); } @@ -629,7 +637,7 @@ int m_addq(WORD inst, WORD siz) } else { - fixup(FU_QUICK, sloc, a0expr); + AddFixup(FU_QUICK, sloc, a0expr); D_word(inst); }