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6ad5bd2325
rgbasm tries to optimize any loads from/to $FF00-$FFFF and generate LDH 2-byte opcodes instead of regular LD 3-byte opcodes. This is a bit inconsistent as it only works for constant values. If a load is trying to access a label in a HRAM floating section, or a section found in a different object file, this optimization doesn't work. This means that a simple refactor or code could allow rgbasm to perform the optimzation or prevent it from doing so. For certain projects, like disassemblies, this is a problem. This patch adds flag -L to rgbasm to disable the optimization, and doesn't change the behaviour of any other existing code. Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/*
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* This file is part of RGBDS.
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*
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* Copyright (c) 1997-2018, Carsten Sorensen and RGBDS contributors.
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*
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* SPDX-License-Identifier: MIT
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*/
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#ifndef RGBDS_MAIN_H
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#define RGBDS_MAIN_H
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#include <stdbool.h>
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#include <stdint.h>
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#include "extern/stdnoreturn.h"
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struct sOptions {
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char binary[2];
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char gbgfx[4];
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bool exportall;
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int32_t fillchar;
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bool haltnop;
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bool optimizeloads;
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bool verbose;
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bool warnings; /* True to enable warnings, false to disable them. */
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};
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extern char *tzNewMacro;
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extern uint32_t ulNewMacroSize;
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extern int32_t nGBGfxID;
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extern int32_t nBinaryID;
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extern struct sOptions DefaultOptions;
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extern struct sOptions CurrentOptions;
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extern FILE *dependfile;
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void opt_Push(void);
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void opt_Pop(void);
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void opt_Parse(char *s);
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/*
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* Used for errors that compromise the whole assembly process by affecting the
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* folliwing code, potencially making the assembler generate errors caused by
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* the first one and unrelated to the code that the assembler complains about.
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* It is also used when the assembler goes into an invalid state (for example,
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* when it fails to allocate memory).
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*/
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noreturn void fatalerror(const char *fmt, ...);
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/*
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* Used for errors that make it impossible to assemble correctly, but don't
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* affect the following code. The code will fail to assemble but the user will
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* get a list of all errors at the end, making it easier to fix all of them at
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* once.
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*/
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void yyerror(const char *fmt, ...);
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/*
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* Used to warn the user about problems that don't prevent the generation of
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* valid code.
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*/
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void warning(const char *fmt, ...);
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#define YY_FATAL_ERROR fatalerror
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#ifdef YYLMAX
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#undef YYLMAX
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#endif
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#define YYLMAX 65536
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#endif /* RGBDS_MAIN_H */
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