From: wrking@tsoft.com (William King)
Subject: New: PDP-11 Unix Mailing List
Date: Wed, 14 Jun 2000 00:28:13 -0700 [thread overview]
Message-ID: <000001bfd5d2$1934c380$bf01a8c0@dadaboom.com> (raw)
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id 1329Wp-0003Na-00; Wed, 14 Jun 2000 11:32:07 +0200
To: pups at minnie.cs.adfa.edu.au
Subject: Help reviewing processor features
From: lars brinkhoff <lars@nocrew.org>
Date: 14 Jun 2000 11:32:07 +0200
In-Reply-To: Greg Lehey's message of "Mon, 12 Jun 2000 11:49:12 -0700"
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The following is source code taken verbatim from my PDP-11 support code
for the GNU assembler. Any help correcting errors would be appreciated.
This code tells the assembler what instruction set features to recognize
depending on what processor the user wants to assemble for. Individual
features can also be enabled, e.g. if a processor option is installed.
The instruction set features are:
cis Commersial instruction set (optional on all
processors?).
csm CSM instruction.
eis Extended instruction set: MUL, DIV, ASH, ASHC, and
all of limited-eis.
fis KEV11 floating-point instructions.
fpp FP-11 floating-point instructions.
limited-eis Limited extended instruction set: RTT, MARK, SXT,
XOR, SOB.
mfpt MFPT instruction.
multiproc Multiprocessor instructions: TSTSET, WRTLCK.
mxps MFPS and MTPS instructions.
spl SPLx instructions.
ucode Microcode instructions: LDUB, MED, XFC.
if (strncmp (buf, "a", 1) == 0) /* KA11 (11/15/20) */
return 1; /* no extensions */
else if (strncmp (buf, "b", 1) == 0) /* KB11 (11/45/50/55/70) */
return set_option ("eis") &&
set_option ("spl");
else if (strncmp (buf, "da", 2) == 0) /* KD11-A (11/35/40) */
return set_option ("limited-eis");
else if (strncmp (buf, "db", 2) == 0 || /* KD11-B (11/05/10) */
strncmp (buf, "dd", 2) == 0) /* KD11-D (11/04) */
return 1; /* no extensions */
else if (strncmp (buf, "de", 2) == 0) /* KD11-E (11/34) */
return set_option ("eis") &&
set_option ("mxps");
else if (strncmp (buf, "df", 2) == 0 || /* KD11-F (11/03) */
strncmp (buf, "dh", 2) == 0 || /* KD11-H (11/03) */
strncmp (buf, "dq", 2) == 0) /* KD11-Q (11/03) */
return set_option ("limited-eis") &&
set_option ("mxps");
else if (strncmp (buf, "dk", 2) == 0) /* KD11-K (11/60) */
return set_option ("eis") &&
set_option ("mxps") &&
set_option ("ucode");
else if (strncmp (buf, "dz", 2) == 0) /* KD11-Z (11/44) */
return set_option ("csm") &&
set_option ("eis") &&
set_option ("mfpt") &&
set_option ("mxps") &&
set_option ("spl");
else if (strncmp (buf, "f", 1) == 0) /* F11 (11/24) */
return set_option ("eis") &&
set_option ("mfpt") &&
set_option ("mxps");
else if (strncmp (buf, "j", 1) == 0) /* J11 (11/53/73/83/84/93/94)*/
return set_option ("csm") &&
set_option ("eis") &&
set_option ("mfpt") &&
set_option ("multiproc") &&
set_option ("mxps") &&
set_option ("spl");
else if (strncmp (buf, "t", 1) == 0) /* T11 (11/21) */
return set_option ("limited-eis") &&
set_option ("mxps");
reply other threads:[~2000-06-14 7:28 UTC|newest]
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