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Definition: A direct instruction is one that specifies in the instruction itself the address of the source or destination register whose contents will be the subject of the instruction. Definition: An indirect instruction is one that specifies a "pointer register", the contents of which is the address of a "target" register. The target register ...
Direct instruction (DI) is the explicit teaching of a skill set using lectures or demonstrations of the material to students. A particular subset, denoted by capitalization as Direct Instruction , refers to the approach developed by Siegfried Engelmann and Wesley C. Becker that was first implemented in the 1960s.
Also, depending on how it specifies the address of the new instruction sequence (the "target" address), a branch instruction is generally classified as direct, indirect or relative, meaning that the instruction contains the target address, or it specifies where the target address is to be found (e.g., a register or memory location), or it ...
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.
Students are viewed as "empty vessels" whose primary role is to passively receive information (via lectures and direct instruction) with the end goal of testing and assessment. It is the primary role of teachers to pass knowledge and information on to their students. In this model, teaching and assessment are viewed as two separate entities.
Indirect addressing does carry a performance penalty due to the extra memory access involved. Some early minicomputers (e.g. DEC PDP-8, Data General Nova) had only a few registers and only a limited direct addressing range (8 bits). Hence the use of memory indirect addressing was almost the only way of referring to any significant amount of memory.
"For most companies in our coverage, direct exposure to imports from these countries is minimal; however, the secondary risk of inflation and related pressure on discretionary spend is a ...
Indirect threading uses pointers to locations that in turn point to machine code. The indirect pointer may be followed by operands which are stored in the indirect "block" rather than storing them repeatedly in the thread. Thus, indirect code is often more compact than direct-threaded code.