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- /* fix_tios.c: Routines for TIOS-specific M68000 code fixup
- Copyright (C) 2003 Kevin Kofler
- Copyright (C) 2003 Sebastian Reichelt
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
- #include "fix_tios.h"
- #include "tios.h"
- // Turn an M68000 absolute JRA/JSR to an F-Line jump.
- void M68kTIOSMakeFLineJump (RELOC *Reloc, I1 *Opcode, BOOLEAN IsJSR)
- {
- if ((Reloc->Size == 4) && (!(Reloc->Relative)))
- {
- // Optimize the JRA or JSR into an F-Line BRA.L or BSR.L.
- Opcode [0] = (IsJSR ? M68K_TIOS_BSR_L_0 : M68K_TIOS_BRA_L_0);
- Opcode [1] = (IsJSR ? M68K_TIOS_BSR_L_1 : M68K_TIOS_BRA_L_1);
-
- // Change the reloc to 4-byte relative.
- Reloc->Relative = TRUE;
- }
- }
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