Search results
Results from the WOW.Com Content Network
reduced source statements (versus repetitive If statements) reduced requirement to test return codes individually (if used at call site to determine subsequent program flow) Algorithmic and code efficiency (data need only be encoded once and branch table code is usually compact), and the potential to attain high data compression ratios. For ...
A form found in unstructured languages, mimicking a typical machine code instruction, would jump to (GOTO) a label or line number when the condition was met. IF..THEN..(ENDIF). Rather than being restricted to a jump, any simple statement, or nested block, could follow the THEN key keyword. This a structured form. IF..THEN..ELSE..(ENDIF). As ...
Unconditional branch instructions such as GOTO are used to unconditionally jump to a different instruction sequence. If the algorithm requires a conditional branch, the GOTO (or GOSUB subroutine call) is preceded by an IF-THEN statement specifying the condition(s).
"GOTO" key on the 1982 ZX Spectrum home computer, implemented with native BASIC (one-key command entry).. Goto is a statement found in many computer programming languages.It performs a one-way transfer of control to another line of code; in contrast a function call normally returns control.
Branch prediction attempts to guess whether a conditional jump will be taken or not. Branch target prediction attempts to guess the target of a taken conditional or unconditional jump before it is computed by decoding and executing the instruction itself. Branch prediction and branch target prediction are often combined into the same circuitry.
The target of a conditional or an unconditional goto/jump instruction is a leader. The instruction that immediately follows a conditional or an unconditional goto/jump instruction is a leader. Starting from a leader, the set of all following instructions until and not including the next leader is the basic block corresponding to the starting ...
Here, there are two successive goto fail statements. In the syntax of the C language, the second is unconditional, and hence always skips the call to SSLHashSHA1.final. As a consequence, err will hold the status of the SHA1 update operation, and signature verification will never fail. [5] Here, the unreachable code is the call to the final ...
An indirect branch (also known as a computed jump, indirect jump and register-indirect jump) is a type of program control instruction present in some machine language instruction sets. Rather than specifying the address of the next instruction to execute , as in a direct branch , the argument specifies where the address is located.