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Messages - bsl
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61
« on: June 11, 2011, 11:01:31 am »
Is there currently a version of Ndless 3.0 in the works?
Thats somehing completeley unpredictable. Finding bugs and exploiting them is an art and a science. Its a time consuming trial and error process. How much of your personal time to do this is a factor.
62
« on: June 10, 2011, 05:21:55 pm »
But alas, I cannot see, how it should be possible to change the behaviour of the BASIC interpreter this way.
If you want to change/extend the BASIC-interpreter, you either have to write a completely new interpreter as G3A (sagarvaze did this some years ago at casiokingdoms) or you have to mod the OS.
MPoupe outlines on the other link given above how to do this - there is interaction between the interpreter and the C program. You establish an I/O protocol through Alpha variables to accomplish the custom call. So you have to write the basic program differently. I think for the time being I will develop it this way . The first two custom calls will be Asm and Syscall . I would really like to make this transparent to the Basic coder as you are wondering about and find a syscall to the interpreter, such as SetBasicErrorHandler to handle and process new calls if it exists ? @bsl: are you one of the SDK-chums, which have been around at casiokingdoms some years ago? The old syscall-wrapper: long time no see!
It's in MPoupes code, I only started on Casio calcs January 2011.
63
« on: June 03, 2011, 08:40:39 pm »
The zip is on the posting just above the first picture. Sorry - It is hard to see and easy to miss.
64
« on: June 03, 2011, 08:33:02 pm »
Looks interesting  how exactly does this work? Is it like an all new BASIC editor/interpreter, or does it just improve upon the current form of BASIC? Does this have a documentation of commands and the like?
Nothing yet , but it shows promise - its very early at this point to use this - its just a demo
65
« on: June 03, 2011, 08:22:23 pm »
This is a port of MPoupe's TSR program for the fx-9860 to the Prizm. http://ourl.ca/10095I had this idea earlier, but wasn't sure where to start: http://ourl.ca/9185/173872I added new syscalls to this program, not found in the mini-SDK, but proven to work here. The program was developed using Simon's mini-SDK, on the cg10-20 Manager emulator and finally tested on Prizm hardware. [easier to recover from emulator crashes] The code is almost the same as MPoupe's , but I took out the scrolling screen and put in the appearing rotating character sequence "/","-","\", ... You get this on the lower right corner after the program appears to finish, and press and hold one of the navigation keys: UP,DOWN,LEFT,RIGHT You exit the progran pressing EXIT. To run again delete TSRDEMO, and activate another addin like Conversion , then back to BASICEXT This is only a proof of concept, this works the same way n the Prizm as on the fx-9860 The wish list of what to add to this is long. Adding custom Basic commmands is possible.
66
« on: May 09, 2011, 10:37:09 pm »
The math functins I have listed above will work if the endiannes of the doubles are reversed.
Is there a compiler option for this ?
Here is an example:
// test program for NONCAS 1.7
static const unsigned sqrt_addrs[] = {0X102A2490, 0x0};
#define sqrt SYSCALL_CUSTOM(sqrt_addrs, double ,double)
int main(void) {
double rr;
rr = 2.0;
printf("square root of 2 is %lf\n",sqrt(rr) );
return 0;
}
The double breaks up into the registers r0 and r1 like this:
The working Lua version of this has at entry r0=00000000,r1=40000000
This C version has at entry r0=40000000,r1=00000000
So a macro that flips the double or a compiler option will fix this.
EDIT: The above program works if changed to:
static const unsigned sqrt_addrs[] = {0X102A2490, 0x0};
#define sqrt SYSCALL_CUSTOM(sqrt_addrs, double ,double)
double dswap(double v)
{
union {
unsigned long long i;
double d;
} conv;
conv.d = v;
conv.i = (conv.i << 32) | (conv.i >> 32);
return conv.d;
}
int main(void) {
double rr;
rr = 2.0;
printf("square root of 2 = %15.15f\n",sqrt(dswap(rr)));
return 0;
}
However, a custom call has to be specially made for the remaing math functions.
67
« on: May 05, 2011, 01:09:58 pm »
Here are some math library routines revealed by Lua,
and cross referenced to OS noncas 1.7
0X102A12E0 acos
0X102A1438 atan
0X102A1688 ceil
0X102A1840 exp
0X102A19D8 fabs
0X102A1A28 floor
0X102A1B20 frexp
0X102A1C58 ldexp
0X102A1D40 fmod
0X102A1FB8 pow
0X102A2118 sin
0X102A22D0 cos
0X102A2490 sqrt
0X105DD938 ln
0X105DDC70 pow
0X102A5ACC rand
0X102A5B6C srand
0X102A2630 tan
These are untested and useful for games that use game physics.
68
« on: April 15, 2011, 10:46:54 pm »
It does not. But at least when starting a Phoenix, the caches should be pretty devoid of the code that previously existed at the loading address, shouldn't they be ?
It should, since starting a Phoenix intilializes its own resources, same with boot1,boot2, and diags - they have there own interrupt vector table and initialization routines. So the DummyOS demo might encounter problems if ran at some lengthy time.
69
« on: April 09, 2011, 11:35:04 am »
Now add another intermediate step - patch Ndless hooks into it before launching May be able to port Ndless2.0 to Ndless3.0 this way ?
70
« on: April 03, 2011, 05:42:00 pm »
The standard trick in soldering microelectronics with a high wattage iron is to
wrap a thin copper wire on the tip of your soldering iron, to make a small
hot contact.
Make it long enough , then cut pieces of the wire shorter and shorter, till its hot enough
to melt the solder.
A solder sucker is the preferred way to eliminate the solder from the nand-board bond.
Update: Check your local electronics hobby store for desoldering tools also.(mention for microelectronics)
There are inexpensive tools I found at my store .
71
« on: April 01, 2011, 07:11:09 pm »
boot2, hint:boot2launcher code
Start the emulator with a /d
then :
debug> d 1199a7f4
if you are booting with boot1:
k 11800000 +x
then continue, following a dump at that address
72
« on: April 01, 2011, 07:01:59 pm »
This is looking more CAS+ like:
1199a7f4: /tmp/manifest_img
1199a80c: /tmp/TI-Nspire.tnc
73
« on: April 01, 2011, 10:07:52 am »
Does the examples document mention "CAS+" also ?
Also when you get to the point of dumping- dump the diags too, even though
it appears not there.
74
« on: March 29, 2011, 08:40:23 pm »
Be careful with boot2launcher .
If you launch a developer boot2 on a production OS (or vice versa)it will delete that OS.
75
« on: March 25, 2011, 10:17:27 pm »
Try:
type /phoenix/policy.dat
Maybe changing something in this file is all that is needed !!!!!
EDIT: re-naming this file to policy.back :
copy policy.dat policy.back
del policy.dat
, may enable USB, and other features.
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