Article View: comp.sys.amiga.applications
Article #14010Re: IBrowse public screen / serial conflict
From: Hans Olsen
Date: Tue, 28 Jan 1997 00:00
Date: Tue, 28 Jan 1997 00:00
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Neil Bothwick wrote: > > Hi there Hans Olsen, I believe it was you who said: Hello, > It's got very little to do with the CPU. This is a DMA issue, and the Well, yes, but moveing VBR etc. to fast will make the CPU stay away more from the chipmem, and then leaving more time to gfx and serial to fight for the access. > serial port and video display are fighting over the same, > insufficient, bandwidth. The serial port loses out because it's > inadequate buffer means *any* delay results in lost data. One thing that springs to mind is a program called FastBlit or FasterBlitter, it speeds up the GFX. But reading the docs mentions that the priority of the serial device is lowered, so if you have any GFX 'speed ups' the rest of the system may suffer. On the other hand, would it be possible to increase the priority of the serial port, or lower the priority of the GFX, then you might get better transfers but slower gfx? --- Greetings Hans Olsen EMail: pt96hol@student.hk-r.se It's kinda fun to consummate the impossible.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f6f0c,ad3922aa4524ce20 X-Google-Attributes: gidf6f0c,public X-Google-Thread: 167cde,ad3922aa4524ce20 X-Google-Attributes: gid167cde,public X-Google-Thread: 11015b,ad3922aa4524ce20 X-Google-Attributes: gid11015b,public From: Hans Olsen <pt96hol@student.hk-r.se> Subject: Re: IBrowse public screen / serial conflict Date: 1997/01/28 Message-ID: <32EE6FAB.3D4@student.hk-r.se> X-Deja-AN: 212815522 references: <1159.6950T754T2340@enterprise.net> <2313.6951T921T228@copywriter.co.uk> <1808.6956T584T1891@wirenet.u-net.com> <32E36AC0.3954@student.hk-r.se> <1043.6960T85T1171@wirenet.u-net.com> <32E508AA.1FA5@student.hk-r.se> <1114.6961T557T85@wirenet.u-net.com> content-type: text/plain; charset=us-ascii organization: HK-R mime-version: 1.0 newsgroups: comp.sys.amiga.applications,enterprise.general.amiga,demon.ip.support.amiga x-mailer: Mozilla 3.01 (X11; I; SunOS 5.5.1 sun4m)