/members-area/personalblogs/b/blog/posts/4-bit-accumulator---adderI have recently constructed a 4 bit adder and accumulator.The input of the adder is set by switches and the other input comes from the accumulator, the output is fed back into the accumulator.The contents of the accumulator is displayed on four LED&#39;sen-USTelligent Community 12https://community.element14.com/members-area/personalblogs/b/blog/posts/4-bit-accumulator---adderMon, 16 Dec 2024 16:14:38 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:b8e8e3e5-9508-4545-8272-2582c16b1c584-bitcomputernerd0<p>Do you happen to have a schematic?</p><img src="https://community.element14.com/aggbug?PostID=2174&AppID=293&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/members-area/personalblogs/b/blog/posts/4-bit-accumulator---adderThu, 03 Nov 2016 12:28:36 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:b8e8e3e5-9508-4545-8272-2582c16b1c58jc20481<p>In your previous blog post, you talked about the program counter [as a counter] and extended that to using a simple adder. If you were to use this ALU (that you&#39;re working towards) to instead manipulate the program counter then you&#39;d be able to add relative branches almost for free.</p><img src="https://community.element14.com/aggbug?PostID=2174&AppID=293&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/members-area/personalblogs/b/blog/posts/4-bit-accumulator---adderTue, 01 Nov 2016 19:37:22 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:b8e8e3e5-9508-4545-8272-2582c16b1c58DAB1<p>Nice, it takes me back to my bit slice days in the 1970&#39;s when we began making special digital control devices from basic computer components.</p><p>&nbsp;</p><p>DAB</p><img src="https://community.element14.com/aggbug?PostID=2174&AppID=293&AppType=Weblog&ContentType=0" width="1" height="1">