exception.c File Reference

#include "exception.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

Data Structures
struct	C8_Exception
	Represents an exception. More...

Macros
#define	C8_INVALID_INSTRUCTION_EXCEPTION_MESSAGE   "An invalid instruction exists in the input file."
#define	C8_TOO_MANY_LABELS_EXCEPTION_MESSAGE   "Too many labels are defined in the input file."
#define	C8_STACK_OVERFLOW_EXCEPTION_MESSAGE   "A stack overflow occurred during execution."
#define	C8_INVALID_ARGUMENT_EXCEPTION_MESSAGE   "An invalid instruction argument was given."
#define	C8_DUPLICATE_LABEL_EXCEPTION_MESSAGE   "A label was defined multiple times."
#define	C8_INVALID_SYMBOL_EXCEPTION_MESSAGE   "An invalid symbol exists in the input file."
#define	C8_MEMORY_ALLOCATION_EXCEPTION_MESSAGE   "Failed to allocate memory."
#define	C8_UNKNOWN_EXCEPTION_MESSAGE   "An unknown error has occurred."
#define	C8_TOO_MANY_SYMBOLS_EXCEPTION_MESSAGE   "Too many symbols exist in the input file."
#define	C8_LOAD_FILE_FAILURE_EXCEPTION_MESSAGE   "Failed to load file."
#define	C8_FILE_TOO_BIG_EXCEPTION_MESSAGE   "The given file is too big."
#define	C8_INVALID_COLOR_PALETTE_EXCEPTION_MESSAGE   "Invalid color palette."
#define	C8_INVALID_QUIRK_EXCEPTION_MESSAGE   "Invalid quirk."
#define	C8_FAILED_GRAPHICS_INITIALIZATION_EXCEPTION_MESSAGE   "Failed to initialize graphics."
#define	C8_INVALID_FONT_EXCEPTION_MESSAGE   "Invalid font."
#define	C8_INVALID_CLOCK_SPEED_EXCEPTION_MESSAGE   "Clock speed cannot be less than 1."
#define	C8_STACK_UNDERFLOW_EXCEPTION_MESSAGE   "Stack underflow occurred during execution."

Functions
void	c8_handle_exception (C8_ExceptionCode code)
	Handles an exception by printing the corresponding error message to stderr.

Variables
const C8_Exception	c8_exceptions []
char	c8_exception [BUFSIZ]
	Message to print when calling c8_handle_exception with a non-zero code.

Detailed Description

Note

NOT EXPORTED

Stuff for handling exceptions.

Macro Definition Documentation

C8_DUPLICATE_LABEL_EXCEPTION_MESSAGE

#define C8_DUPLICATE_LABEL_EXCEPTION_MESSAGE   "A label was defined multiple times."

C8_FAILED_GRAPHICS_INITIALIZATION_EXCEPTION_MESSAGE

#define C8_FAILED_GRAPHICS_INITIALIZATION_EXCEPTION_MESSAGE   "Failed to initialize graphics."

C8_FILE_TOO_BIG_EXCEPTION_MESSAGE

#define C8_FILE_TOO_BIG_EXCEPTION_MESSAGE   "The given file is too big."

C8_INVALID_ARGUMENT_EXCEPTION_MESSAGE

#define C8_INVALID_ARGUMENT_EXCEPTION_MESSAGE   "An invalid instruction argument was given."

C8_INVALID_CLOCK_SPEED_EXCEPTION_MESSAGE

#define C8_INVALID_CLOCK_SPEED_EXCEPTION_MESSAGE   "Clock speed cannot be less than 1."

C8_INVALID_COLOR_PALETTE_EXCEPTION_MESSAGE

#define C8_INVALID_COLOR_PALETTE_EXCEPTION_MESSAGE   "Invalid color palette."

C8_INVALID_FONT_EXCEPTION_MESSAGE

#define C8_INVALID_FONT_EXCEPTION_MESSAGE   "Invalid font."

C8_INVALID_INSTRUCTION_EXCEPTION_MESSAGE

#define C8_INVALID_INSTRUCTION_EXCEPTION_MESSAGE   "An invalid instruction exists in the input file."

C8_INVALID_QUIRK_EXCEPTION_MESSAGE

#define C8_INVALID_QUIRK_EXCEPTION_MESSAGE   "Invalid quirk."

C8_INVALID_SYMBOL_EXCEPTION_MESSAGE

#define C8_INVALID_SYMBOL_EXCEPTION_MESSAGE   "An invalid symbol exists in the input file."

C8_LOAD_FILE_FAILURE_EXCEPTION_MESSAGE

#define C8_LOAD_FILE_FAILURE_EXCEPTION_MESSAGE   "Failed to load file."

C8_MEMORY_ALLOCATION_EXCEPTION_MESSAGE

#define C8_MEMORY_ALLOCATION_EXCEPTION_MESSAGE   "Failed to allocate memory."

C8_STACK_OVERFLOW_EXCEPTION_MESSAGE

#define C8_STACK_OVERFLOW_EXCEPTION_MESSAGE   "A stack overflow occurred during execution."

C8_STACK_UNDERFLOW_EXCEPTION_MESSAGE

#define C8_STACK_UNDERFLOW_EXCEPTION_MESSAGE   "Stack underflow occurred during execution."

C8_TOO_MANY_LABELS_EXCEPTION_MESSAGE

#define C8_TOO_MANY_LABELS_EXCEPTION_MESSAGE   "Too many labels are defined in the input file."

C8_TOO_MANY_SYMBOLS_EXCEPTION_MESSAGE

#define C8_TOO_MANY_SYMBOLS_EXCEPTION_MESSAGE   "Too many symbols exist in the input file."

C8_UNKNOWN_EXCEPTION_MESSAGE

#define C8_UNKNOWN_EXCEPTION_MESSAGE   "An unknown error has occurred."

Function Documentation

c8_handle_exception()

void c8_handle_exception

(

C8_ExceptionCode

code

)

Handles an exception by printing the corresponding error message to stderr.

Parameters

code	The exception code.

Variable Documentation

c8_exception

char c8_exception[BUFSIZ]

Message to print when calling c8_handle_exception with a non-zero code.

c8_exceptions

const C8_Exception c8_exceptions[]

Initial value:

= {
    { C8_INVALID_INSTRUCTION_EXCEPTION,  "An invalid instruction exists in the input file."  },
    { C8_TOO_MANY_LABELS_EXCEPTION,  "Too many labels are defined in the input file."  },
    { C8_STACK_OVERFLOW_EXCEPTION,  "A stack overflow occurred during execution."  },
    { C8_INVALID_ARGUMENT_EXCEPTION,  "An invalid instruction argument was given."  },
    { C8_DUPLICATE_LABEL_EXCEPTION,  "A label was defined multiple times."  },
    { C8_INVALID_SYMBOL_EXCEPTION,  "An invalid symbol exists in the input file."  },
    { C8_MEMORY_ALLOCATION_EXCEPTION,  "Failed to allocate memory."  },
    { C8_UNKNOWN_EXCEPTION,  "An unknown error has occurred."  },
    { C8_TOO_MANY_SYMBOLS_EXCEPTION,  "Too many symbols exist in the input file."  },
    { C8_LOAD_FILE_FAILURE_EXCEPTION,  "Failed to load file."  },
    { C8_FILE_TOO_BIG_EXCEPTION,  "The given file is too big."  },
    { C8_INVALID_COLOR_PALETTE_EXCEPTION,  "Invalid color palette."  },
    { C8_INVALID_QUIRK_EXCEPTION,  "Invalid quirk."  },
    { C8_FAILED_GRAPHICS_INITIALIZATION_EXCEPTION,
       "Failed to initialize graphics."  },
    { C8_INVALID_FONT_EXCEPTION,  "Invalid font."  },
    { C8_INVALID_CLOCK_SPEED_EXCEPTION,  "Clock speed cannot be less than 1."  },
    { C8_STACK_UNDERFLOW_EXCEPTION,  "Stack underflow occurred during execution."  },
}