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cebix |
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/* |
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* mon.h - Machine language monitor |
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* |
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* (C) 1997-1999 Christian Bauer |
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*/ |
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#ifndef _MON_H_ |
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#define _MON_H_ |
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// Version/revision |
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const int MON_VERSION = 2; |
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const int MON_REVISION = 2; |
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// Data types |
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#if __BEOS__ |
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#include <SupportDefs.h> |
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#else |
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typedef signed char int8; |
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typedef unsigned char uint8; |
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typedef signed short int16; |
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typedef unsigned short uint16; |
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typedef signed long int32; |
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typedef unsigned long uint32; |
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#endif |
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// Initialization, deinitialization and invocation |
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void mon_init(void); |
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void mon_exit(void); |
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void mon(int argc, char **argv); |
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/* |
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* Definitions for adding commands to mon |
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*/ |
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// Maximum input length |
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const int INPUT_LENGTH = 256; |
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// Input tokens |
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enum Token { |
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T_NULL, // Invalid token |
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T_END, // End of line |
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T_NUMBER, // Hexadecimal/decimal number (uint32) |
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T_STRING, // String enclosed in "" |
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T_NAME, // Variable name |
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T_DOT, // '.' |
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T_COLON, // ':' |
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T_COMMA, // ',' |
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T_LPAREN, // '(' |
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T_RPAREN, // ')' |
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T_PLUS, // '+' |
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T_MINUS, // '-' |
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T_MUL, // '*' |
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T_DIV, // '/' |
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T_MOD, // '%' |
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T_AND, // '&' |
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T_OR, // '|' |
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T_EOR, // '^' |
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T_SHIFTL, // '<<' |
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T_SHIFTR, // '>>' |
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T_NOT, // '~' |
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T_ASSIGN // '=' |
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}; |
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// Scanner variables |
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extern enum Token mon_token; // Last token read |
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extern uint32 mon_number; // Contains the number if mon_token==T_NUMBER |
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extern char mon_string[INPUT_LENGTH]; // Contains the string if mon_token==T_STRING |
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extern char mon_name[INPUT_LENGTH]; // Contains the variable name if mon_token==T_NAME |
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// Streams for input, output and error messages |
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extern FILE *monin, *monout, *monerr; |
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// Current address, value of '.' in expressions |
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extern uint32 mon_dot_address; |
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extern bool mon_use_real_mem; // Flag: mon is using real memory |
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extern uint32 mon_mem_size; // Size of mon buffer (if mon_use_real_mem = false) |
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// Add command to mon |
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extern void mon_add_command(const char *name, void (*func)(void), const char *help_text); |
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// Functions for commands |
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extern void mon_error(const char *s); // Print error message |
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extern enum Token mon_get_token(void); // Get next token |
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extern bool mon_expression(uint32 *number); // Parse expression |
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extern bool mon_aborted(void); // Check if Ctrl-C was pressed |
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extern uint32 mon_read_byte(uint32 adr); // Memory access |
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extern void mon_write_byte(uint32 adr, uint32 b); |
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extern uint32 mon_read_half(uint32 adr); |
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extern void mon_write_half(uint32 adr, uint32 w); |
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extern uint32 mon_read_word(uint32 adr); |
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extern void mon_write_word(uint32 adr, uint32 l); |
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#endif |
