OpenEuphoria

RE: poke4 won't accept my 32bit values

• Posted by Mike The Spike <mtsreborn at yahoo.com> Mar 20, 2001
• 583 views

Let's see...
#FFFFFFFF is a 4-byte integer value...
Hmm...
I tried doing this;
poke4(#A0000, {#FFFFFFFF,0})
and it works...
#FFFFFFFF = 429,496,729,5
so no problem there...

Two causes if you ask me;

poke4() is using a 31 bit integer as parameter, not a
32 bit one (As #FFFFFFFF =
11111111111111111111111111111111 in binary notation).

atom_to_float32(0.0) is screwing up memory...


Mike The Spike
PS. If I see the code I can find out the cause of the
error, but no doubt; poke4() is getting a value passed
to it bigger than it can poke. Sollution:
change 'poke4(pvCube+16,{#FFFFFFFF,0})' into
'poke(pvCube+16,{#FF,#FF,#FF,#FF})' ...

--- Todd Riggins <triggins at ev1.net> wrote:
> Yeah, I agree, this doesn't make any sense whats so
> ever. The 'C'
> translated code is:
>
>     // Fill the array of TL vertices with
> untransformed data for the
> cube
>     g_pvCube[0] = D3DTLVERTEX( D3DVECTOR(-1,-1,-1 ),
> 0, 0xffffffff, 0,
> 0, 0 );
>     g_pvCube[1] = D3DTLVERTEX( D3DVECTOR( 1,-1,-1 ),
> 0, 0xff00ffff, 0,
> 0, 0 );
>     g_pvCube[2] = D3DTLVERTEX( D3DVECTOR(-1, 1,-1 ),
> 0, 0xffff00ff, 0,
> 0, 0 );
>     g_pvCube[3] = D3DTLVERTEX( D3DVECTOR( 1, 1,-1 ),
> 0, 0xff0000ff, 0,
> 0, 0 );
>     g_pvCube[4] = D3DTLVERTEX( D3DVECTOR(-1,-1, 1 ),
> 0, 0xffffff00, 0,
> 0, 0 );
>     g_pvCube[5] = D3DTLVERTEX( D3DVECTOR( 1,-1, 1 ),
> 0, 0xff00ff00, 0,
> 0, 0 );
>     g_pvCube[6] = D3DTLVERTEX( D3DVECTOR(-1, 1, 1 ),
> 0, 0xffff0000, 0,
> 0, 0 );
>     g_pvCube[7] = D3DTLVERTEX( D3DVECTOR( 1, 1, 1 ),
> 0, 0xff000000, 0,
> 0, 0 );
>
> definition of D3DTLVERTEX is:
>
> typedef struct _D3DTLVERTEX {
>     union {
>         D3DVALUE sx;
>         D3DVALUE dvSX;
>     };
>     union {
>         D3DVALUE sy;
>         D3DVALUE dvSY;
>     };
>     union {
>         D3DVALUE sz;
>         D3DVALUE dvSZ;
>     };
>     union {
>         D3DVALUE rhw;
>         D3DVALUE dvRHW;
>     };
>     union {
>         D3DCOLOR color;
>         D3DCOLOR dcColor;
>     };
>     union {
>         D3DCOLOR specular;
>         D3DCOLOR dcSpecular;
>     };
>     union {
>         D3DVALUE tu;
>         D3DVALUE dvTU;
>     };
>     union {
>         D3DVALUE tv;
>         D3DVALUE dvTV;
>     };
> } D3DTLVERTEX, *LPD3DTLVERTEX;
>
> Definition of D3DVECTOR is:
>
> typedef struct _D3DVECTOR {
>     union {
>         D3DVALUE x;
>         D3DVALUE dvX;
>     };
>     union {
>         D3DVALUE y;
>         D3DVALUE dvY;
>     };
>     union {
>         D3DVALUE z;
>         D3DVALUE dvZ;
>     };
> } D3DVECTOR, *LPD3DVECTOR;
>
>
>
> Definition of D3DVALUE is:
>
> typedef float D3DVALUE, *LPD3DVALUE;
>
> This code in question works fine how I set up
> "windows" code
> to get the Exotica dll working with Euphoira. Chris
> uses a diferent
> method to set up "windows" to get the Exotica dll
> working in
> Euphoria using his ExoticaX sdk.
>
> the translated code of what is at the very top of
> this page
> in Euphoira is:
>
>    poke( pvCube   ,atom_to_float32(-1.0))
>    poke( pvCube+4 ,atom_to_float32(-1.0))
>    poke( pvCube+8 ,atom_to_float32(-1.0))
>    poke( pvCube+12,atom_to_float32(0.0))
>    poke4(pvCube+16,{#FFFFFFFF,0})           -- *DP*
> This is where the
> program will crash in the adverse file
>    --poke(pvCube+20,0)
>    poke( pvCube+24,atom_to_float32(0.0))
>    poke( pvCube+28,atom_to_float32(0.0))
>
>    poke( pvCube+32,atom_to_float32( 1.0))
>    poke( pvCube+36,atom_to_float32(-1.0))
>    poke( pvCube+40,atom_to_float32(-1.0))
>    poke( pvCube+44,atom_to_float32(0.0))
>    poke4(pvCube+48,{#FF00FFFF,0})
>    --poke(pvCube+52,0)
>    poke( pvCube+56,atom_to_float32(0.0))
>    poke( pvCube+60,atom_to_float32(0.0))
>
>    poke( pvCube+64,atom_to_float32(-1.0))
>    poke( pvCube+68,atom_to_float32( 1.0))
>    poke( pvCube+72,atom_to_float32(-1.0))
>    poke( pvCube+76,atom_to_float32(0.0))
>    poke4(pvCube+80,{#FFFF00FF,0})
>    --poke(pvCube+84,0)
>    poke( pvCube+88,atom_to_float32(0.0))
>    poke( pvCube+92,atom_to_float32(0.0))
>
>    poke( pvCube+96,atom_to_float32( 1.0))
>    poke( pvCube+100,atom_to_float32( 1.0))
>    poke( pvCube+104,atom_to_float32(-1.0))
>    poke( pvCube+108,atom_to_float32(0.0))
>    poke4(pvCube+112,{#FF0000FF,0})
>    --poke(pvCube+116,0)
>    poke( pvCube+120,atom_to_float32(0.0))
>    poke( pvCube+124,atom_to_float32(0.0))
>
>    poke( pvCube+128,atom_to_float32(-1.0))
>    poke( pvCube+132,atom_to_float32(-1.0))
>    poke( pvCube+136,atom_to_float32( 1.0))
>    poke( pvCube+140,atom_to_float32(0.0))
>    poke4(pvCube+144,{#FFFFFF00,0})
>    --poke(pvCube+148,0)
>    poke( pvCube+152,atom_to_float32(0.0))
>    poke( pvCube+156,atom_to_float32(0.0))
>
>    poke( pvCube+160,atom_to_float32( 1.0))
>    poke( pvCube+164,atom_to_float32(-1.0))
>    poke( pvCube+168,atom_to_float32( 1.0))
>    poke( pvCube+172,atom_to_float32(0.0))
>    poke4(pvCube+176,{#FF00FF00,0})
>    --poke(pvCube+180,0)
>    poke( pvCube+184,atom_to_float32(0.0))
>    poke( pvCube+188,atom_to_float32(0.0))
>
>    poke( pvCube+192,atom_to_float32(-1.0))
>    poke( pvCube+196,atom_to_float32( 1.0))
>    poke( pvCube+200,atom_to_float32( 1.0))
>    poke( pvCube+204,atom_to_float32(0.0))
>    poke4(pvCube+208,{#FFFF0000,0})
>    --poke(pvCube+212,0)
>    poke( pvCube+216,atom_to_float32(0.0))
>    poke( pvCube+220,atom_to_float32(0.0))
>
>    poke( pvCube+224,atom_to_float32( 1.0))
>    poke( pvCube+228,atom_to_float32( 1.0))
>    poke( pvCube+232,atom_to_float32( 1.0))
>    poke( pvCube+236,atom_to_float32(0.0))
>    poke4(pvCube+240,{#FF000000,0})
>    --poke(pvCube+244,0)
>    poke( pvCube+248,atom_to_float32(0.0))
>    poke( pvCube+252,atom_to_float32(0.0))
>
>
> At the *DP* statement is where Euphoria says the
> error code:
>
> C:\Programming\Exotica_users\chris_b\poke4
> bug\Failing Demo.exw:167 in
> procedure FrameMove()
> poke4 is limited to 32-bit numbers
>     vx = 0
>     vy = 1
>     vz = 0
>     dwNumVertices = <no value>
>
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