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What’s the difference between EAX, EBX, and ECX in assembly? eax, ebx, ecx and so on are actually registers, which can be seen as "hardware" variables, somewhat similar to higher level-language's variables Registers can be used in your software directly with instructions such as mov, add or cmp
Are the data registers EAX, EBX, ECX and EDX interchangeable For example, for the write system call, it grabs the file descriptor from ebx, a pointer to the buffer you want to write from ecx and the number of bytes you want to write from edx The kernel does not know what your intentions are, it just stupidly grabs whatever is in the registers, so it does matters which registers you use
Error when reading module. xml of module ebx-root-1. 0 Example: 'ebx perf log=xmlExport:xmlImport' 2020-06-22 00:44:19,391 CEST WARN log kernel 0964:0002 [localhost-startStop-1] Could not create default repository, it is not yet installed 2020-06-22 00:44:19,391 CEST WARN log kernel 0964:0002 [localhost-startStop-1] Access to web user interface EBX5 to run the installation wizard 2020-06-22 00
Tibco EBX ~ Filter after Technical details - Stack Overflow I need help with filtering in Tibco EBX rest API I am trying to filter after "technicalDetails" information like lastUpdateDate or lastUpdateUser As of the current Tibco EBX documentation, I can add the extra technical details using the includeTechnicals=true parameter to the Rest API call The model I am using looks something like this:
Why should EDX be 0 before using the DIV instruction? For DIV, the registers EDX and EAX form one single 64 bit value (often shown as EDX:EAX), which is then divided, in this case, by EBX So if EAX = 10 or hex A and EDX is, say 20 or hex 14 , then together they form the 64 bit value hex 14 0000 000A or decimal 85899345930
c - Whats the point of LEA EAX, [EAX]? - Stack Overflow 8d6424 00 lea [ebx+00],ebx ; 4-byte padding 8d9b 00000000 lea [esp+00000000],esp ; 6-byte padding The first line is marked as "npad 4" in assembly listings generated by the compiler, and the second is "npad 6" The registers (ebx, esp) can be chosen from the rarely used ones to avoid false dependencies in the code
Inline assembly error: unknown register name ‘%%ebx’ in ‘asm’ I am trying to create read() wrapper but getting this error: error: unknown register name ‘%%ebx’ in ‘asm’ in line 23 (the bold line) Here is the code: #include <sys syscall h> typedef Skip to main content
Whats the purpose of the LEA instruction? - Stack Overflow LEA EAX, [ EBX + ECX ] calculates EBX + ECX without overriding either with the result The third thing LEA is used for (not listed by Frank) is multiplication by constant (by two, three, five or nine), if you use it like LEA EAX, [ EBX + N * EBX ] (N can be 1,2,4,8)