int AddBreakpoint(unsigned long addr, unsigned int type) {
t_polymorphicbreakpoint crt_breakpoint;
if(numberofpatch>=__MAX_PMBP__) {
olly_add_to_list(0, __ERROR__, "[Error at %x08X] Too many breakpoint are already set.", addr);
return 0;
}
crt_breakpoint.index=numberofpatch;
crt_breakpoint.addr=addr;
crt_breakpoint.type=type;
crt_breakpoint.able=1;
if(Readmemory(tpatch[numberofpatch].original, addr, (unsigned long)size[crt_breakpoint.type], MM_RESILENT) == 0) {
olly_add_to_list(0, __ERROR__, "[Error at %x08X] Can't read the memory.", addr);
return 0;
}
if(Writememory(polymorph[crt_breakpoint.type], addr, (unsigned long)size[crt_breakpoint.type], MM_RESILENT) == 0) {
olly_add_to_list(0, __ERROR__, "[Error at %x08X] Can't write the memory / Set the breakpoint.", addr);
return 0;
}
tpatch[numberofpatch].addr = addr;
tpatch[numberofpatch].size = size[crt_breakpoint.type];
olly_add_sorted_data(&(breakpoint.data),&crt_breakpoint);
olly_add_to_list(0,0,"New breakpoint at 0x%08X", addr);
numberofpatch++;
return 1;
}
int Assembl(char *answer,ulong parm) {
int i,j,k,n,good;
char s[TEXTLEN];
t_asmmodel model,attempt;
t_memory *pmem;
t_dump *pasm;
// Visualize changes.
Setcpu(0,address,0,0,CPU_ASMHIST|CPU_ASMCENTER);
if (string[0]=='\0') // No immediate command
Sendshortcut(PM_DISASM,address,WM_CHAR,0,0,' ');
else {
// Assemble immediate command. If there are several possible encodings,
// select the shortest one.
model.length=0;
for (j=0; ; j++) { // Try all possible encodings
good=0;
for (k=0; k<4; k++) { // Try all possible constant sizes
n=Assemble(string,address,&attempt,j,k,model.length==0?answer:s);
if (n>0) {
good=1;
// If another decoding is found, check if it is shorter.
if (model.length==0 || n<model.length)
model=attempt; // Shortest encoding so far
;
};
};
if (good==0) break; // No more encodings
};
if (model.length==0)
return -1; // Invalid command
// Check for imprecise parameters.
k=model.mask[0];
for (i=1; i<model.length; i++) k&=model.mask[i];
if (k!=0xFF) {
strcpy(answer,"Command contains imprecise operands");
return -1; };
// If there is no backup copy, create it. Dump window always assumes that
// backup has the same base and size as the dump, so check it to avoid
// strange ireproducible errors.
pmem=Findmemory(address);
if (pmem==NULL) {
//strcpy(answer,"Attempt to assemble to non-existing memory");
wsprintf(answer,"%X",model.code[0]);
for(i=1; i<model.length; i++) {
wsprintf(answer,"%s%X",answer,model.code[i]);
}
return -1; };
pasm=(t_dump *)Plugingetvalue(VAL_CPUDASM);
if (pasm!=NULL && pmem->copy==NULL && pmem->base==pasm->base && pmem->size==pasm->size)
Dumpbackup(pasm,BKUP_CREATE);
// Now write assembled code to memory.
Writememory(model.code,address,model.length,MM_RESTORE|MM_DELANAL);
};
return 0;
};
int DisableBreakpoint(t_polymorphicbreakpoint *crt_breakpoint) {
if(Writememory(tpatch[crt_breakpoint->index].original, tpatch[crt_breakpoint->index].addr,
tpatch[crt_breakpoint->index].size, MM_RESILENT) == 0) {
olly_add_to_list(0, __ERROR__, "[Error at %x08X] Can't write the memory / Restore the breakpoint.", crt_breakpoint->addr);
return 0;
}
crt_breakpoint->able = 0;
olly_add_to_list(0,0,"Breakpoint at %08X(%d) disabled", crt_breakpoint->addr, crt_breakpoint->index);
return 1;
}
