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09-01-2007, 11:22 PM
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#1 |
RANGE attribute use
The newbie is back!
Why can't I do this: type table_array IS ARRAY (0 to 16) of STD_LOGIC_VECTOR(11 downto 0); signal table: table_array; .... FOR i in 1 to table'RANGE loop .... Shannon Shannon |
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09-02-2007, 01:15 AM
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#2 |
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Posts: n/a
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Re: RANGE attribute use
"Shannon" <> wrote in message news: ups.com... > The newbie is back! > > Why can't I do this: > > type table_array IS ARRAY (0 to 16) of STD_LOGIC_VECTOR(11 downto 0); > signal table: table_array; > ... > > FOR i in 1 to table'RANGE loop > ... Because the correct syntax is... FOR i in table'RANGE loop KJ KJ |
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09-02-2007, 03:36 AM
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#3 |
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Posts: n/a
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Re: RANGE attribute use
On Sep 1, 5:15 pm, "KJ" <kkjenni...@sbcglobal.net> wrote:
> "Shannon" <sgo...@sbcglobal.net> wrote in message > > news: ups.com...> The newbie is back! > > > Why can't I do this: > > > type table_array IS ARRAY (0 to 16) of STD_LOGIC_VECTOR(11 downto 0); > > signal table: table_array; > > ... > > > FOR i in 1 to table'RANGE loop > > ... > > Because the correct syntax is... > FOR i in table'RANGE loop > KJ Almost. An allowed syntax is: FOR i in 1 to 10 Loop Correct? if table'range = 10 then why couldn't I say FOR i in 1 to table'range Loop ? Shannon |
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09-02-2007, 05:05 AM
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#4 |
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Posts: n/a
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Re: RANGE attribute use
On Sun, 02 Sep 2007 02:36:33 -0000, Shannon <>
wrote: >On Sep 1, 5:15 pm, "KJ" <kkjenni...@sbcglobal.net> wrote: >> "Shannon" <sgo...@sbcglobal.net> wrote in message >> >> news: ups.com...> The newbie is back! >> >> > Why can't I do this: >> >> > type table_array IS ARRAY (0 to 16) of STD_LOGIC_VECTOR(11 downto 0); >> > signal table: table_array; >> > ... >> >> > FOR i in 1 to table'RANGE loop >> > ... >> >> Because the correct syntax is... >> FOR i in table'RANGE loop >> KJ > >Almost. > >An allowed syntax is: > >FOR i in 1 to 10 Loop > >Correct? Good so far. >if table'range = 10 then why couldn't I say No. table'range isn't "10". It is a range 1 to 10. It includes both the left and right limits, and the direction (to or downto). Regards, Allan Allan Herriman |
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09-02-2007, 05:18 AM
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#5 |
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Posts: n/a
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Re: RANGE attribute use
On Sep 1, 9:05 pm, Allan Herriman <allanherri...@hotmail.com> wrote:
> On Sun, 02 Sep 2007 02:36:33 -0000, Shannon <sgo...@sbcglobal.net> > wrote: > > > > >On Sep 1, 5:15 pm, "KJ" <kkjenni...@sbcglobal.net> wrote: > >> "Shannon" <sgo...@sbcglobal.net> wrote in message > > >>news: roups.com...> The newbie is back! > > >> > Why can't I do this: > > >> > type table_array IS ARRAY (0 to 16) of STD_LOGIC_VECTOR(11 downto 0); > >> > signal table: table_array; > >> > ... > > >> > FOR i in 1 to table'RANGE loop > >> > ... > > >> Because the correct syntax is... > >> FOR i in table'RANGE loop > >> KJ > > >Almost. > > >An allowed syntax is: > > >FOR i in 1 to 10 Loop > > >Correct? > > Good so far. > > >if table'range = 10 then why couldn't I say > > No. table'range isn't "10". It is a range 1 to 10. It includes both > the left and right limits, and the direction (to or downto). > > Regards, > Allan Darn! You were too fast for me Allan. I feel so dumb. I thought RANGE meant "max". I'll just use 'right or 'high. duh...I feel silly. In my defense I'm trying to code and take care of my two year old and 11 month old kids at the same time...It has an effect on your concentration. Shannon Shannon |
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