doFlame(&std_logic_arith);

取り敢えず，KMSがmodeset=0で動く様になったと思ったら#vhdlにnumeric_stdな猿が居たのでflameしてみた． :P

07/19 02:35:22 jv
    MatthiasM: Why is logic_arith so pervasive?
07/19 02:35:41 MatthiasM
    ?
07/19 02:46:31 jv
    MatthiasM: why people keep using std_logic_artih
07/19 02:46:56 MatthiasM
    maybe because neither Xilinx or Altera updated their language
    templates

07/19 03:27:50 hiyuh
    jv: MatthiasM: promote me numeric_std more. then I'll switch from
    sticking std_logic_arith.
07/19 03:28:21 MatthiasM
    hiyuh: simple - no help for everyone who uses std_logic_arith :P
07/19 03:28:40 hiyuh
    ha
07/19 03:30:21 NULL[0]
    we need to open a new channel for that: #vhdl-93
07/19 03:30:55 MatthiasM
    or #vhdl-only-for-std_numeric-users
07/19 03:31:12 hiyuh
    there is no system doesn't support std_logic_arith and
    numeric_std. monkey is just saying "it's t3h standard".
07/19 03:32:05 NULL[0]
    a 15 years old tool supporting only vhdl-87 will not support
    numeric_std ;p
07/19 03:32:35 hiyuh
    no, that kind of craps are not system anymore. :p
07/19 03:36:29 hiyuh
    anyway, vhdl-93/2002 doesn't bother to use std_logic_arith, iirc.
07/19 03:36:58 NULL[0]
    because it is not necessary anymore
07/19 03:39:00 hiyuh
    so plz, promote me in technical view. numeric_std is different from
    std_logic_arith. why I should migrate?
07/19 03:39:15 hiyuh
    s/I should/should I/
07/19 03:39:50 NULL[0]
    one is a standard the other one a de facto standard that will
    hopefully be deprecated soon ;)
07/19 03:40:27 NULL[0]
    unfortunately it will never happen ;/
07/19 03:41:05 hiyuh
    yup, de facto standard won't be deprecated. b/c monky is just saying
    "it's t3h standard".
07/19 03:41:20 hiyuh
    so plz promote me more.
07/19 03:42:07 NULL[0]
    I don't really care :p, I have seen only 1 stupid case combining
    std_logic_signed and std_logic_unsigned which broke the code
07/19 03:43:05 NULL[0]
    something impossible with numeric_std ;)
07/19 03:43:12 NULL[0]
    alone
07/19 03:44:43 hiyuh
    std_logic_arith is not std_logic_{signed,unsigned}.
07/19 03:44:45 hiyuh
    mixing them does overload some functions in current vhdl standard,
    it just makes noobs confuse.
07/19 03:45:17 NULL[0]
    std_logic_(un)signed is part of the synopsys libraries like
    std_logic_arith
07/19 03:45:50 hiyuh
    nope, they are separated, iirc.
07/19 03:46:08 NULL[0]
    library IEEE;
07/19 03:46:08 NULL[0]
    use IEEE.std_logic_1164.all;
07/19 03:46:08 NULL[0]
    use IEEE.std_logic_arith.all;
07/19 03:46:24 NULL[0]
    that's the beginning of std_logic_signed
07/19 03:46:37 NULL[0]
    -- Copyright (c) 1990, 1991, 1992 by Synopsys, Inc. --
07/19 03:49:10 hiyuh
    http://pastebin.com/m545ddbec
07/19 03:49:54 NULL[0]
    and ?
07/19 03:51:13 hiyuh
    synopsys/std_logic_arith.vhdl has only "use ieee.std_logic_1164.all;"
07/19 03:51:23 hiyuh
    so, they are separated.
07/19 03:51:40 NULL[0]
    std_logic_(un)signed is a wrapper applied on std_logic_arith
07/19 03:52:43 hiyuh
    heh
07/19 03:53:00 hiyuh
    but i don't use std_logic_unsigned/std_logic_signed to avoid overload
    problem.
07/19 03:54:34 NULL[0]
    std_logic_arith and numeric_std have more or less the same
    functionalities, so there is no reason to use the library which is
    not standard in newer code
07/19 03:55:24 hiyuh
    again, plz promote me more.
07/19 03:55:37 hiyuh
    in technical view.
07/19 03:56:05 hiyuh
    std_logic_arith and numeric_std have more or less the same
    functionalities, so there is no reason to migrate the library which
    is not de facto standard.
07/19 03:57:09 hiyuh
    NULL[0]: so what you said is "in technical"?
07/19 03:57:22 hiyuh
    i don't think so.
07/19 03:57:28 MatthiasM
    hiyuh: numeric_std has resize
07/19 03:57:51 MatthiasM
    and shift_left/right with warnings when the numerical value changed
    because of overflow
07/19 03:58:01 hiyuh
    heh
07/19 03:58:23 MatthiasM
    eg resize(to_unsigned(10, 4), 3) gives a warning in simulation
07/19 03:58:45 MatthiasM
    but resize(to_unsigned(10, 5), 4) is ok

07/19 04:02:52 hiyuh
    yo, |fred| :)
07/19 04:03:14 |fred|
    perfect timing to disappear ;o)
07/19 04:03:22 hiyuh
    lol
07/19 04:33:26 |fred|
    hiyuh: I have actually right now to follow a guideline forbidding
    numeric_std :)
07/19 04:34:00 hiyuh
    lol
07/19 04:34:59 hiyuh
    k, i'll switch to numeric_std at next proj.
07/19 04:35:01 hiyuh
    :D

他人に新しいモノをすすめる時には，trivialでtechnicalな利点を根拠に持たないとダメだと思う．
"it's t3h standard!!1"は"but ITJUSTWORKS(tm)"で一蹴される阿呆に共通する特徴．
んな事を言ったって，我らが仮想敵なボスの無意味に保守的な態度に対向出来る訳無ぇだろよ，カスが．
でも，実を言うとstd_logic_arithに気に入らない所もあるので，今度から numeric_stdを使ってみっかな．
std_logic_arithにしがみついているのは，#vhdlでは少数派の様だし． :P