Talk:LSI-11: Difference between revisions
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22 vs 16 bit wide ROM? |
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Question: How come the microcode ROMs are 22 bits wide, yet the opcodes are 16 bits wide? (AS documented in the WP16/CP1600 manuals.) [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]]) 11:16, 25 March 2018 (CEST) | Question: How come the microcode ROMs are 22 bits wide, yet the opcodes are 16 bits wide? (AS documented in the WP16/CP1600 manuals.) [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]]) 11:16, 25 March 2018 (CEST) | ||
: Just a guess, but it is ''microcode''; some of the other bits may control other stuff on the board? The prints probably say (they are available for both the dual- and quad-width LSI-11 CPU cards. [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 14:28, 25 March 2018 (CEST) | |||
Revision as of 12:28, 25 March 2018
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Question: How come the microcode ROMs are 22 bits wide, yet the opcodes are 16 bits wide? (AS documented in the WP16/CP1600 manuals.) Larsbrinkhoff (talk) 11:16, 25 March 2018 (CEST)
