Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-01-02 20:43:18 +00:00
Code Issues Projects Releases Packages Wiki Activity

[NTVDM]: Use the 0xCC (int 3) instruction as the memory fill byte.

Browse source 
svn path=/trunk/; revision=64383
This commit is contained in:
Hermès Bélusca-Maïto 2014-09-28 22:35:05 +00:00
parent f455bcf161
commit 90d370dbb6
1 changed files with 6 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
reactos/subsystems/ntvdm/emulator.c
View file

@ -549,8 +549,12 @@ BOOLEAN EmulatorInitialize(HANDLE ConsoleInput, HANDLE ConsoleOutput)
wprintf(L"FATAL: Failed to allocate VDM memory.\n");
return FALSE;
}
// For diagnostics purposes!!
RtlFillMemory(BaseAddress, MAX_ADDRESS, 0xFF);
/*
* For diagnostics purposes, we fill the memory with INT 0x03 codes
* so that if a program wants to execute random code in memory, we can
* retrieve the exact CS:IP where the problem happens.
*/
RtlFillMemory(BaseAddress, MAX_ADDRESS, 0xCC);
/* Initialize I/O ports */
/* Initialize RAM */