setjmp.h for the Prizm?

[gbl08ma Profile Website]

Does anyone have a implementation, compatible with the Prizm, of the functions defined on setjmp.h? I'm trying to port a software that needs these functions.

I think the miniSDK has them but I need them in assembly so that I can compile them with GCC.

[SimonLothar]

Does anyone have a implementation, compatible with the Prizm, of the functions defined on setjmp.h? I'm trying to port a software that needs these functions.

I think the miniSDK has them but I need them in assembly so that I can compile them with GCC.

This is what I found, yet.
I do not know, if it is that what you are looking for.
(somesavespace has to located in static RAM.)

Code: Select all

   .SECTION P,CODE
longjmp:
      mov.l   #somesavespace, r0
      mov.l   r5, @r0
      add      #h'34, r4
      mov.l   @(h'18,r4), r0
      ldc      r0, gbr
      mov.l   @(h'14,r4), r0
      lds      r0, macl
      mov.l   @(h'10,r4), r0
      lds      r0, mach
      mov.l   @(8,r4), r1
      mov.l   @(4,r4), r2
      mov.l   @r4, r3
      add      #-h'34, r4
      mov.l   @(h'2C,r4), r5
      mov.l   @(h'28,r4), r6
      mov.l   @(h'24,r4), r7
      mov.l   @(h'20,r4), r8
      mov.l   @(h'1C,r4), r9
      mov.l   @(h'18,r4), r10
      mov.l   @(h'14,r4), r11
      mov.l   @(h'10,r4), r12
      mov.l   @(h'C,r4), r13
      mov.l   @(4,r4), r14
      mov      r4, r0
      mov.l   @(h'30,r0), r4
      mov.l   @r0, r15
      mov.l   @(8,r0), r0
      lds      r0, pr
      mov.l   #somesavespace, r0
      mov.l   @r0, r0
      cmp/eq   #0, r0
      bf      ?x
      mov      #1, r0
?x:
      rts
      nop

setjmp:
      mov.l   r15, @r4
      mov.l   r14, @(4,r4)
      sts      pr, r14
      mov.l   r14, @(8,r4)
      mov.l   @(4,r4), r14
      mov.l   r13, @(h'C,r4)
      mov.l   r12, @(h'10,r4)
      mov.l   r11, @(h'14,r4)
      mov.l   r10, @(h'18,r4)
      mov.l   r9, @(h'1C,r4)
      mov.l   r8, @(h'20,r4)
      mov.l   r7, @(h'24,r4)
      mov.l   r6, @(h'28,r4)
      mov.l   r5, @(h'2C,r4)
      mov.l   r4, @(h'30,r4)
      add      #h'30, r4
      mov.l   r3, @(4,r4)
      mov.l   r2, @(8,r4)
      mov.l   r1, @(h'C,r4)
      mov.l   r0, @(h'10,r4)
      sts      mach, r0
      mov.l   r0, @(h'14,r4)
      sts      macl, r0
      mov.l   r0, @(h'18,r4)
      stc      gbr, r0
      mov.l   r0, @(h'1C,r4)
      mov.l   @r4, r4
      rts
      mov      #0, r0
      
   .SECTION D,DATA
      .align   4
somesavespace:   .res.l   1

   .end


[gbl08ma Profile Website]

That may work, but since it is untested...
I found out that when LuaZM was written, Kerm at Cemetech wrote his own setjmp and longjmp implementation (because Lua needs it). Since that's probably already tested and more known to work, I'll be waiting some more hours for a reply there before I try to inline your assembly and use it.

EDIT: How big must somesavespace be?

[SimonLothar]

EDIT: How big must somesavespace be?

.res.l 1 == reserve one long

[gbl08ma Profile Website]

Ah, OK. I still haven't managed to get any setjmp to work, but that's the smallest of my problems - I noticed that I'm also missing all the functions in math.h, because they are not implemented in libfxcg. The software really needs the math functions. I'll have to bother some more people to get them to work, before I get to the setjmp subject.

[SimonLothar]

Are the object-modules in fx9860G_library.lib (which comes with the fx-9860-SDK) not compatible with GCC?

[gbl08ma Profile Website]

I took a look before and I don't think so, they are only compatible with the proprietary SuperH compiler which only works on Windows. fxCG_library.lib seems to have the functions I need but I can't link them with my code. If I had the source code for it, I could try compiling the bits that interest to me with GCC, but as things are now, I can't do anything with it.

[SimonLothar]

I took a look before and I don't think so, they are only compatible with the proprietary SuperH compiler which only works on Windows. fxCG_library.lib seems to have the functions I need but I can't link them with my code. If I had the source code for it, I could try compiling the bits that interest to me with GCC, but as things are now, I can't do anything with it.

According to the SHC-manual, the objects-format is ELF. Doesn't your GCC support ELF?

[gbl08ma Profile Website]

If I rename "fxCG_library.lib" to something that has the .a extension and starts with lib, i.e. "libfxcglibrary.a", then try to tell GCC to use it, when it starts linking it errors because it doesn't understand the library format:

Code: Select all

Casio-Pro/fixedSDK/common/prizm.ld -Wl,-static -Wl,-gc-sections  -L/home/gabriel/Development/Casio-Pro/fixedSDK/lib -lfxcg -lc -lgcc -lnspireio -lfxcglibrary -o /home/gabriel/Development/Casio-Pro/fixedSDK/projects/eigenmath/eigenmath.bin
/home/gabriel/Development/Casio-Pro/fixedSDK/lib/libfxcglibrary.a: file not recognized: File format not recognized
collect2: error: ld returned 1 exit status
make[1]: *** [/home/gabriel/Development/Casio-Pro/fixedSDK/projects/eigenmath/eigenmath.bin] Error 1
make: *** [build] Error 2

This is understandable because your libs start with HLIB (seems to be something specific to the SH compiler) and the ones built with GCC start with the ascii chars !<arch> and then some things which seem to be identifiers, and the object code only comes next. So the libraries seem to be fully incompatible with GCC.

[helder7]

If I rename "fxCG_library.lib" to something that has the .a extension and starts with lib, i.e. "libfxcglibrary.a", then try to tell GCC to use it, when it starts linking it errors because it doesn't understand the library format.

i think that you need extract the .obj files from .lib and after convert them to .a to use in GCC
check this post: viewtopic.php?f=21&t=1472#p12770