alloc
Allocate memory in the debuggee (using VirtualAllocEx). The memory is allocated with PAGE_EXECUTE_READWRITE protection.

arguments
[arg1]: Size of the memory to allocate. When not specified, a default size of 0x1000 is used.

result
This command sets $result to the allocated memory address. It also sets the $lastalloc variable to the allocated memory address when VirtualAllocEx succeeded.