| 术语 | direct page register |
| 释义 | direct page register 直接页面寄存器;［直接页面暂存器］ The register that serves to enhance the direct addressing mode. The content of this register appears at the high address outputs during direct addressing instruction execution. This allows the direct mode to be used at any place in memory, under program control. To ensure compatibility, all bits of this register are cleared during processor reset. 用于增强直接寻址方式的寄存器,在直接寻址指令执行期间,高位地址输出即是这个寄存 器的内容。这允许在程序控制下,对存储器的任一区域使用直接寻址方式。为保证兼容性, 在处理机复位时,清除寄存器的所有位。 |
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