mirror of https://github.com/cc65/cc65.git
133 lines
4.7 KiB
C
133 lines
4.7 KiB
C
/*****************************************************************************/
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/* */
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/* asmcode.c */
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/* */
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/* Assembler output code handling for the cc65 C compiler */
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/* */
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/* */
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/* */
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/* (C) 2000-2009, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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/* common */
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#include "check.h"
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/* cc65 */
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#include "asmcode.h"
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#include "codeseg.h"
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#include "dataseg.h"
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#include "segments.h"
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#include "stackptr.h"
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#include "symtab.h"
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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void GetCodePos (CodeMark* M)
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/* Get a marker pointing to the current output position */
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{
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M->Pos = CS_GetEntryCount (CS->Code);
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M->SP = StackPtr;
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}
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void RemoveCodeRange (const CodeMark* Start, const CodeMark* End)
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/* Remove all code between two code markers */
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{
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/* Nothing to do if the range is empty */
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if (Start->Pos == End->Pos) {
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return;
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}
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/* Delete the range */
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CS_DelCodeRange (CS->Code, Start->Pos, End->Pos-1);
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}
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void RemoveCode (const CodeMark* M)
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/* Remove all code after the given code marker */
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{
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CS_DelCodeAfter (CS->Code, M->Pos);
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StackPtr = M->SP;
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}
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void MoveCode (const CodeMark* Start, const CodeMark* End, const CodeMark* Target)
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/* Move the code between Start (inclusive) and End (exclusive) to
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** (before) Target. The code marks aren't updated.
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*/
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{
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CS_MoveEntries (CS->Code, Start->Pos, End->Pos - Start->Pos, Target->Pos);
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}
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int CodeRangeIsEmpty (const CodeMark* Start, const CodeMark* End)
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/* Return true if the given code range is empty (no code between Start and End) */
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{
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int Empty;
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PRECONDITION (Start->Pos <= End->Pos);
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Empty = (Start->Pos == End->Pos);
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if (Empty) {
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/* Safety */
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CHECK (Start->SP == End->SP);
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}
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return Empty;
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}
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void WriteAsmOutput (void)
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/* Write the final assembler output to the output file */
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{
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SymTable* SymTab;
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SymEntry* Entry;
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/* Output the global data segment */
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CHECK (!HaveGlobalCode ());
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OutputSegments (CS);
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/* Output all global or referenced functions */
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SymTab = GetGlobalSymTab ();
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Entry = SymTab->SymHead;
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while (Entry) {
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if (SymIsOutputFunc (Entry)) {
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/* Function which is defined and referenced or extern */
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OutputSegments (Entry->V.F.Seg);
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}
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Entry = Entry->NextSym;
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}
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}
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