From: Naofumi Yasufuku <naofumi@yasufuku.net>
To: 9fans@cse.psu.edu
Subject: [9fans] Re: 3dfx banshee
Date: Sat, 23 Dec 2000 08:32:05 +0900 [thread overview]
Message-ID: <200012222332.IAA01154@mb8.seikyou.ne.jp> (raw)
In-Reply-To: <20001222041202.5C64C199E3@mail.cse.psu.edu>
I forgot to write my change of /sys/src/cmd/aux/vga/3dfx.c.
The change is only max clock value.
/sys/src/cmd/aux/vga/3dfx.c
---------------------------
57 switch(tdfx->pci->did){
58 default:
59 error("%s: unknown chip - DID %4.4uX\n",
60 ctlr->name, tdfx->pci->did);
61 break;
62 case 0x0005: /* Avenger (a.k.a. Voodoo3) */
63 /*
64 * Frequency output of PLL's is given by
65 * fout = RefFreq*(n+2)/((m+2)*2^p)
66 * where there are 6 bits for m, 8 bits for n
67 * and 2 bits for p (k).
68 */
69 vga->m[1] = 64;
70 vga->n[1] = 256;
71 vga->p[1] = 4;
72 vga->f[1] = 300000000;
73 break;
74 case 0x0003: /* Banshee */
75 vga->m[1] = 64;
76 vga->n[1] = 256;
77 vga->p[1] = 4;
78 vga->f[1] = 270000000;
79 break;
80 }
-------------------------
======================
Naofumi Yasufuku
<naofumi@yasufuku.net>
parent reply other threads:[~2000-12-22 23:32 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20001222041202.5C64C199E3@mail.cse.psu.edu>]
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