sim0008.html 793 B

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  1. <HTML>
  2. <HEAD>
  3. <META NAME="Generator" CONTENT="Corel WordPerfect 8">
  4. <TITLE>CPU Registers</TITLE>
  5. </HEAD>
  6. <BODY TEXT="#000000" LINK="#0000ff" VLINK="#551a8b" ALINK="#ff0000" BGCOLOR="#ffffff">
  7. <H1>CPU Registers</H1>
  8. <P><img src="cpu.gif" width="148" height="214" align=right ></P>
  9. <P>The CPU registers, including the Condition Code Register, can be changed at any time
  10. the simulation is not running. Register D, which is A and B concatenated, is displayed
  11. but can only be altered by changing registers A or B. Changing the PC value and
  12. pressing the Enter key while in that field will cause the CPU instruction queue to be
  13. updated immediately, changing the displayed next instruction, and changing the
  14. processor mode from WAITING or STOPPED to RUNNING.</P>
  15. </BODY>
  16. </HTML>