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From: Alan Lehotsky <apl@alum.mit.edu>
To: cgen@sourceware.cygnus.com
Subject: Can't see what's wrong with my simulator semantics code....
Date: Sat, 30 Jun 2001 10:20:00 -0000	[thread overview]
Message-ID: <p04330101b763b6596543@[192.168.1.254]> (raw)

cgen claims

     ERROR: read:array unknown option  #\)

when processing the (set dest (if ...)) below.  If I comment out that
3 line "set", it compiles my simulator.
I'm sure I'm doing something really stupid, but this LOOKS like
expressions that compile....

-- Al

p.s.	The instruction basically takes one half of the 32 bit word
	and compares it against a 16 bit immediate.  The 'idx' is a 2 bit
	field where 00=> low 16 bits, 11=> high 16 bits....

=======================


(dni cmpwi "compare word immediate"
     ()
     "cmpwi $rd$idx,$imm16"
     (+ OP5_CMPWI rd idx imm16)
     (sequence ((SI dest))
	       (set dest (if SI (eq idx #3)
			        (and #xffff (srl rd #16))
			        (and #xffff rd)))
	       (set zbit (eq imm16 dest)))
     ()
)

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             reply	other threads:[~2001-06-30 10:20 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-06-30 10:20 Alan Lehotsky [this message]
     [not found] <p04330101b763b6596543.cygnus.local.cgen@[192.168.1.254]>
2001-06-30 11:55 ` Geoff Keating
2001-06-30 12:10   ` Alan Lehotsky
2001-06-30 12:25     ` Geoff Keating
2001-06-30 12:35       ` Alan Lehotsky
2001-06-30 17:12     ` Ben Elliston

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