[Oberon] Doubt on code generated with Oberon Simulator.

[Srinivas Nayak]

Hmmm...

I should have mentioned the "easy way to check it" for everybody.

[latest = 4 July 2016]
- take the latest compiler code and build the compiler
- take the latest Files.Mod.txt and compile it with your new compiler
- take the Files.rsc file out to Linux.
- hexdump -v -s 199 -e '1/4 "%08.8X " "\n"' Files.rsc > Files.rsc.orig.hex
- Check line 156, 188, 273, 361 ...


With thanks and best regards,

Yours sincerely,
Srinivas Nayak

Home: http://www.mathmeth.com/sn/
Blog: http://srinivas-nayak.blogspot.in/

On 07/12/2016 09:06 PM, Srinivas Nayak wrote:
> Dear All,
>
> I use Peter De Wachter's Oberon Simulator on Linux.
> I took the latest compiler code from www.projectoberon.com.
> I compiled the latest compiler (ORS, ORB, ORG, ORP).
> Using the latest compiler, I compiled latest Files.Mod.txt.
> It gave Files.rsc.
>
> Now I see, Files.Mod.txt has 8 calls to NEW().
> [1st NEW at pos=3022, 2nd NEW at pos=3241, 3rd NEW at pos=3592, ...]
>
> ORG.Mod.txt says,
>
>    PROCEDURE New*(VAR x: Item);
>
>    BEGIN loadAdr(x); loadTypTagAdr(x.type.base); Trap(7, 0); RH := 0; invalSB
>
>    END New;
>
>
>    PROCEDURE Trap(cond, num: LONGINT);
>
>    BEGIN Put3(BLR, cond, ORS.Pos()*100H + num*10H + MT)
>
>    END Trap;
>
>
> It seems, from inside Trap(), compiler should generate the opcode
> 0xD70BCE0C (Pos*256+num*16+MT = 3022*256+0*16+12 = 0x0BCE0C)
> 0xD70CA90C (Pos*256+num*16+MT = 3241*256+0*16+12 = 0x0CA90C)
> 0xD70E080C (Pos*256+num*16+MT = 3592*256+0*16+12 = 0x0E080C)
> ...
>
> However, Files.rsc contains only
> 0xD700000C
> 0xD700000C
> 0xD700000C
> ...
>
> That means, Trap will not be able to report the position at run time!
>
> I have no real Oberon hardware.
> Kindly let me know if your latest Files.rsc contains only 0xD700000C corresponding to each NEW or not.
> I shall be grateful, if I can get the latest Files.rsc from the latest native Oberon.
> [By latest native Oberon, I mean FPGA Oberon update of 4 July 2016 running on real FPGA hardware.]
>
>
>
> With thanks and best regards,
>
> Yours sincerely,
> Srinivas Nayak
>
> Home: http://www.mathmeth.com/sn/
> Blog: http://srinivas-nayak.blogspot.in/