EDIT instruction -- idiosyncrasies

2011-08-29 Thread Justin R. Bendich
Do any of you old-timers (e.g. Fairchild, Cole) know how the EDIT (ED) instruction came to be the way it is? It's one of the original IBM 360 instructions. Has to be the most complicated of them. Did they have microcode back then? The main thing that bugs me about this instruction is that if you

Re: EDIT instruction -- idiosyncrasies

2011-08-29 Thread robin
From: Justin R. Bendich jbend...@austin.rr.com Sent: Tuesday, 30 August 2011 1:29 PM Do any of you old-timers (e.g. Fairchild, Cole) know how the EDIT (ED) instruction came to be the way it is? It's one of the original IBM 360 instructions. Has to be the most complicated of them. The EDMK

Re: EDIT instruction -- idiosyncrasies

2011-08-29 Thread Gerhard Postpischil
On 8/29/2011 11:29 PM, Justin R. Bendich wrote: Do any of you old-timers (e.g. Fairchild, Cole) know how the EDIT (ED) instruction came to be the way it is? It's one of the original IBM 360 instructions. Has to be the most complicated of them. Did they have microcode back then? My

Re: EDIT instruction -- idiosyncrasies

2011-08-29 Thread robin
From: Gerhard Postpischil gerh...@valley.net Sent: Tuesday, 30 August 2011 2:57 PM On 8/29/2011 11:29 PM, Justin R. Bendich wrote: Do any of you old-timers (e.g. Fairchild, Cole) know how the EDIT (ED) instruction came to be the way it is? It's one of the original IBM 360 instructions. Has to