From: Sergey Belyashov <sergey.belyashov@gmail.com>
To: cgen@sourceware.org
Subject: BUG: non-fixed-length ISAs are unsupported for now
Date: Thu, 23 Apr 2020 16:37:16 +0300 [thread overview]
Message-ID: <CAOe0RDzfi4+f2QL-EN83LgLowFG2DQpmajf-gK-rL5ys+Y52NQ@mail.gmail.com> (raw)
Hi,
While analyzing code of CGEN I have found next code:
; Return the definition of an instruction value entry.
(define (gen-ivalue-entry insn)
(string-list "{ "
"0x" (number->string (insn-value insn) 16)
(if #f ; (ifmt-opcodes-beyond-base? (insn-ifmt insn))
(string-list ", { "
; ??? wip: opcode values beyond the base
insn
"0 }")
"")
" }")
)
and
; Given INSN, return the sum of the constant values in the insn
; (i.e. the opcode field).
;
; See also (compute-insn-base-mask).
;
; FIXME: For non-fixed-length ISAs, using this doesn't feel right.
(define (insn-value insn)
(if (elm-get insn '/insn-value)
(elm-get insn '/insn-value)
(let* ((base-len (insn-base-mask-length insn))
(value (apply +
(map (lambda (fld) (ifld-value fld base-len
(ifld-get-value fld)))
(find ifld-constant?
(ifields-base-ifields (insn-iflds
insn))))
)))
(elm-set! insn '/insn-value value)
value))
)
Can anybody add support for non-fixed-length ISAs?
Best regards,
Sergey Belyashov
next reply other threads:[~2020-04-23 13:37 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-23 13:37 Sergey Belyashov [this message]
2020-04-27 16:29 ` Frank Ch. Eigler
2020-04-27 17:00 ` Sergey Belyashov
2020-04-27 17:52 ` Sergey Belyashov
2020-04-27 18:03 ` Jose E. Marchesi
2020-04-27 19:34 ` Sergey Belyashov
2020-04-27 20:01 ` Jose E. Marchesi
2020-04-27 20:23 ` Sergey Belyashov
2020-04-29 19:11 ` Sergey Belyashov
2020-07-30 9:11 ` Sergey Belyashov
2020-08-11 15:38 ` Frank Ch. Eigler
2020-08-11 15:57 ` Sergey Belyashov
2020-08-11 16:08 ` Frank Ch. Eigler
2020-08-12 13:59 ` Sergey Belyashov
2020-08-12 18:36 ` Frank Ch. Eigler
2020-08-12 18:53 ` Jose E. Marchesi
2020-08-12 19:19 ` Sergey Belyashov
2020-08-12 19:21 ` Frank Ch. Eigler
2020-08-12 19:27 ` Jose E. Marchesi
2020-08-12 19:44 ` Sergey Belyashov
2020-08-12 19:57 ` Frank Ch. Eigler
2020-08-13 13:34 ` Sergey Belyashov
2020-08-13 14:32 ` Frank Ch. Eigler
2020-08-13 14:47 ` Sergey Belyashov
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