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- /* exp_farg.c: Routines to export to a Fargo file
- Copyright (C) 2002-2003 Sebastian Reichelt
- Copyright (C) 2003 Kevin Kofler
- 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 "exp_farg.h"
- #ifdef FARGO_SUPPORT
- #include "../manip.h"
- // Fargo TI-BASIC fork
- static const I1 FARGO_TIBASIC_FORK[] = {
- 0xE9, // ENDSTACK_TAG
- 0x12, 0xE4, // 'EndPrgm'
- 0x00, 0xE8, // Newline
- 0x19, 0xE4, // 'Prgm'
- 0xE5, // No arguments, END_TAG only
- 0x00, 0x00, 0x40 // Flags
- };
- // Get the file size needed to export the program into a Fargo file.
- // Returns 0 on failure.
- // Call this function once to receive necessary error messages.
- SIZE GetFargoFileSize (const PROGRAM *Program)
- {
- // Get a pointer to the main section.
- SECTION *MainSection = Program->MainSection;
-
- // There must be exactly one section.
- if (!MainSection)
- {
- Error (NULL, "No main section.");
- return 0;
- }
-
- // The program consists of a TI-Basic fork and the section.
- return (MainSection->Size + sizeof (FARGO_TIBASIC_FORK));
- }
- // Export the internal data structures into a Fargo file.
- BOOLEAN ExportFargoFile (const PROGRAM *Program, EXP_FILE *File, SIZE FileSize ATTRIBUTE_UNUSED, ProgramCalcs DestCalc ATTRIBUTE_UNUSED)
- {
- // A simple macro to make the code more readable.
- #define FailWithError(Err...) ({ Error (Err); return FALSE; })
-
- const char *SectionFileName = NULL;
- OFFSET DataStart = 0;
-
- // Get a pointer to the first section.
- SECTION *MainSection = Program->MainSection;
-
- if (!MainSection)
- FailWithError (NULL, "No main section.");
-
- // Get the section file name for error messages.
- SectionFileName = MainSection->FileName;
-
- // Startup code should always be marked as such. When merging
- // sections, the destination startup number is kept, so in the
- // end, the complete code is marked as a startup section (which
- // makes sense; it is startable).
- if (!(MainSection->StartupNumber))
- FailWithError (SectionFileName, "No startup section(s) defined.");
-
- if (!(MainSection->Data))
- FailWithError (SectionFileName, "No section contents.");
-
- // Write out the section contents first.
- DataStart = ExportTell (File);
- ExportWrite (File, MainSection->Data, MainSection->Size, 1);
-
- // Write out the TI-BASIC fork.
- ExportWrite (File, FARGO_TIBASIC_FORK, sizeof (FARGO_TIBASIC_FORK), 1);
- if (!(IsEmpty (MainSection->Relocs)))
- {
- RELOC *Reloc;
-
- for_each (Reloc, MainSection->Relocs)
- {
- // If this can be resolved to a calculator-dependent value, write the
- // value into the section data.
- if (!(EmitCalcBuiltinValue (Reloc, DestCalc, File, FileSize, DataStart)))
- FailWithError (SectionFileName, "Fargo does not support AMS relocs.");
- }
- }
-
- if ((!(IsEmpty (MainSection->ROMCalls))) && (!(MainSection->ROMCalls.Handled)))
- FailWithError (SectionFileName, "Fargo does not support ROM calls. Use `tios__0000' and so on.");
-
- if ((!(IsEmpty (MainSection->RAMCalls))) && (!(MainSection->RAMCalls.Handled)))
- FailWithError (SectionFileName, "Fargo does not support RAM calls. Use `kernel__0000' and so on.");
-
- if ((!(IsEmpty (MainSection->LibCalls))) && (!(MainSection->LibCalls.Handled)))
- FailWithError (SectionFileName, "Library calls are not supported in this mode.");
-
- return TRUE;
-
- #undef FailWithError
- }
- #endif /* FARGO_SUPPORT */
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