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S3C4530A Datasheet(PDF) 100 Page - Samsung semiconductor |
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S3C4530A Datasheet(HTML) 100 Page - Samsung semiconductor |
100 / 432 page ![]() INSTRUCTION SET S3C4530A 3-58 UNDEFINED INSTRUCTION The instruction is only executed if the condition is true. The various conditions are defined in Table 3-2. The instruction format is shown in Figure 3-28. 31 27 Cond 28 25 24 011 xxxxxxxxxxxxxxxxxxxx 1 xxxx 5 4 3 0 Figure 3-28. Undefined Instruction If the condition is true, the undefined instruction trap will be taken. Note that the undefined instruction mechanism involves offering this instruction to any coprocessors which may be present, and all coprocessors must refuse to accept it by driving CPA and CPB HIGH. INSTRUCTION CYCLE TIMES This instruction takes 2S + 1I + 1N cycles, where S, N and I are defined as sequential (S-cycle), non-sequential (N-cycle), and internal (I-cycle). ASSEMBLER SYNTAX The assembler has no mnemonics for generating this instruction. If it is adopted in the future for some specified use, suitable mnemonics will be added to the assembler. Until such time, this instruction must not be used. |