t_asmmodel

t_asmmodel

Type of structure that keeps assembler search model.

typedef struct t_asmmodel { // Model to search for assembler command

char code[MAXCMDSIZE]; // Binary code

char mask[MAXCMDSIZE]; // Mask for binary code (0: bit ignored)

int length; // Length of code, bytes (0: empty)

int jmpsize; // Offset size if relative jump

int jmpoffset; // Offset relative to IP

int jmppos; // Position of jump offset in command

} t_asmmodel;

Members:

code - binary code of the command. Only bits that have 1's set in corresponding mask bits are significant;

mask - comparison mask. Search routine ignores all code bits where mask is set to 0;

length - length of code and mask, bytes. If length is 0, search model is empty or invalid;

jmpsize - if nonzero, command is a relative jump and jmpsize is a size of offset in bytes;

jmpoffset - if jmpsize is nonzero, jump offset relative to address of the following command, otherwise undefined;

jmppos - if jmpsize is nonzero, position of the first byte of the offset in code, otherwise undefined.