Re: [Flashforth-devel] Floating point library - open issues

[om1zz <om...@vo...>]

Mike,
even with Txbuffer=0 the fpow crashes, see the session below. 

2.3e 4.3e fpow  fs. 3.59277e1  ok<#,ram>

: tpw ticks 1000 for 2.3e 4.3e fpow drop drop next ticks swap - . ;  ok<#,ram>

tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw OS FlashForth PIC24 31.05.2015
ESC
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw OS FlashForth PIC24 31.05.2015
ESC
tpw 170  ok<#,ram>
tpw OS FlashForth PIC24 31.05.2015
ESC
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw OS FlashForth PIC24 31.05.2015
ESC
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw OS FlashForth PIC24 31.05.2015
ESC
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw 170  ok<#,ram>
tpw OS FlashForth PIC24 31.05.2015
ESC




______________________________________________________________
> Od: "om1zz" <om...@vo...>
> Komu: <fla...@li...>
> Datum: 02.06.2015 09:37
> Předmět: Re: [Flashforth-devel] Floating point library - open issues
>
>Yep, you have found it, it seems..
>
>Here:
>
>TXbuffer=0      dstack=96       bigtest passes (20minutes long run now)
>TXbuffer=31    dstack=254     bigtest passes (several 8minutes rounds)
>
>Igor.
>
>______________________________________________________________
>> Od: Mikael Nordman <mik...@fl...>
>> Komu: <fla...@li...>
>> Datum: 02.06.2015 08:56
>> Předmět: Re: [Flashforth-devel] Floating point library - open issues
>>
>>There seems to be an issue with the NSTDIS bit in INTCON1.
>>FF PIC24 Interrupt routines rely on that nested interrupts do not 
>>occur.
>>Either there is some latent problem in FF or the float lib keeps 
>>resetting that bit.
>>
>>There could also be some other conflict with the usage of the shadow 
>>registers between FF and the float lib.
>>
>>If you use unbuffered transmission on TX1 you will experience less 
>>problems, since there are no
>>disturbing interrupts during the float calculations.
>>
>>I will check details later.
>>
>>
>>On 02.06.2015 00:05, om1zz wrote:
>>> Issue 4.
>>>
>>> Mike,
>>> it crashes here with latest trunk's OS, and 24config (except the uart
>>> pins def and 115k2) and
>>>
>>> ; UART buffer sizes
>>> ; Valid sizes are 7, 15, 31, 63, 127, 255, 511, 1023, etc.
>>> .equ TX1_BUF_SIZE, 31  ; Use 0 for unbuffered TX.
>>
>>
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>