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Be more precise about the conditions which describe sitting at the VAX 3900 boot rom character prompt to enable CPU idling there.
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@ -2181,6 +2181,7 @@ for ( ;; ) {
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BRANCHB (brdisp);
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if (((PSL & PSL_IS) != 0) && /* on IS? */
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(PSL_GETIPL (PSL) == 0x1F) && /* at IPL 31 */
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(mapen == 0) && /* Running from ROM */
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(fault_PC == 0x2004361B)) /* Boot ROM Character Prompt */
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cpu_idle();
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}
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