Author Topic: Ndless 1.7 for TI-Nspire (Read 147021 times)

bsl · « **Reply #375 on:** December 14, 2010, 04:00:17 pm »

A4000000 - A4000100 interrupt vector table
A4000100 - A40096FF screen

0x9700 == 37.75KB of screen+IVT
Leaves the remainder 80k-37.75k above the screen.
Thats interesting, I should use the console program and see for myself that
the memory above the screen repeats on real hardware.

The Ndless installer only uses screen memory - I have a great screen dump of the installation process
stopped just before the screen clears with the "Installed" dialog.
There are 4 bars - top screen bar- initial code
second bar - stage 1 code
third bar - stage 2 code
bottom screen - installation progress stripes -

EDIT: The memory does repeat - for those of you interested, run the console program and run 2 commands:

d 0 [which disassembles at A4000000]
and
d 20000 [ which disassembles at A4020000 ]

The results are the same [also A4040000,...]

For the 4 smaller 16k blocks, hexdump at:
h 10000
h 14000
h 18000
h 1c000

fb39ca4 · « **Reply #376 on:** December 14, 2010, 08:51:40 pm »

Ah, that's why there are those garbled bars when installing.

DJ Omnimaga · « **Reply #377 on:** December 15, 2010, 04:34:04 am »

Wow it does that? O.o

That will sure reminds me of MLC TI-86 screenshots. When programs were decompressed prior execution, random garbage gradually appeared on the screen for a second.

At least if that happens on my Nspire, now I know why.

bsl · « **Reply #378 on:** December 15, 2010, 05:19:17 pm »

Here are standard declarations for os.h that are missing but in the idc files.
Some of these functions are completely untested, but here are the declarations anyway.
Some of these are already in os.h .

read_unaligned_longword     _SYSCALL1(size_t, read_unaligned_longword, void *)
read_unaligned_word     _SYSCALL1(int, read_unaligned_word, void *)
isalnum           _SYSCALL1(int, isalnum, int)
isalpha           _SYSCALL1(int, isalpha, int)
isascii           _SYSCALL1(int, isascii, int)
isdigit           _SYSCALL1(int, isdigit, int)
islower           _SYSCALL1(int, islower, int)
isprint           _SYSCALL1(int, isprint, int)
isspace           _SYSCALL1(int, isspace, int)
isupper           _SYSCALL1(int, isupper, int)
isxdigit        _SYSCALL1(int, isxdigit, int)
toupper           _SYSCALL1(int, toupper, int)
calloc           _SYSCALL2(void*, calloc, size_t, size_t)
free           _SYSCALL1(void, free, void *)
malloc           _SYSCALL1(void*, malloc, size_t)
realloc           _SYSCALL2(void*, realloc, void *, size_t)
fprintf           ?
printf           _SYSCALLVAR(int, __attribute__((__format__(__printf__,1,2))), printf, __attribute__((unused)) const char *format, ...)
sprintf           _SYSCALLVAR(int, __attribute__((__format__(__printf__,2,3))), sprintf, __attribute__((unused)) char *s, __attribute__((unused)) const char *format, ...)
vfprintf_limit256     ?
vsprintf        _SYSCALL3(int, vsprintf, char *, const char *, va_list);
vsprintf_limit256     ?
fclose           _SYSCALL1(int, fclose, FILE *)
fgetc           _SYSCALL1(int, fgetc, FILE *)
fgets           _SYSCALL3(char *, fgets, char * , int , FILE * )
fopen           _SYSCALL2(FILE*, fopen, const char *, const char *)
fread           _SYSCALL4(size_t, fread, void *, size_t, size_t, FILE *)
fseek           _SYSCALL3(int, fseek, FILE *, long int, int)
fwrite           _SYSCALL4(size_t, fwrite, const void *, size_t, size_t, FILE *)
putc           _SYSCALL1(int, putc, int)
puts           _SYSCALL1(int, puts, const char *)
atoi           _SYSCALL1(int, atoi, const char *)
memcmp           _SYSCALL3(int, memcmp, const void *, const void *, size_t)
memcpy           _SYSCALL3(void*, memcpy, void *, const void *, size_t)
memmove           _SYSCALL3(void*, memmove, void *, const void *, size_t)
memset           _SYSCALL3(void*, memset, void *, int, size_t)
strchr           _SYSCALL2(char *, strchr, const char *, int)
strcmp           _SYSCALL2(int, strcmp, const char *, const char *)
strcpy           _SYSCALL2(char *, strcpy, char *, const char *)
strlen           _SYSCALL1(int, strlen, const char *)
strncat           _SYSCALL3(char *, strncat, char *, char *, size_t)
strncmp           _SYSCALL3(char *, strncmp,const char *,const char *, size_t)
strncpy           _SYSCALL3(char *, strncpy, char *,const char *, size_t)
strpbrk           _SYSCALL2(char *, strpbrk, const char *, const char *)
strrchr           _SYSCALL2(const char*, strrchr, const char *, int);
memrev           ?
atof           _SYSCALL1(double, atof, char *)
_fputc           _SYSCALL2(int, fputc, int, FILE *);
chdir           _SYSCALL1(int, chdir, char*)
close           _SYSCALL1(int, close, int)
mkdir           _SYSCALL2(int, mkdir, const char*, int)
open           _SYSCALL3(int, open, const char*, int,int)
read           _SYSCALL4(size_t, read, int, void *,size_t,off_t)
rename           _SYSCALL2(int, rename, const char*, const char*)
rmdir           _SYSCALL1(int, rmdir, const char *)
stat           _SYSCALL2(int, stat, const char *, struct stat *)
unlink           _SYSCALL1(int, unlink, const char *)
write           _SYSCALL4(size_t, write, int, void *,size_t,off_t)
NU_Make_Dir        _SYSCALL1(int, NU_Make_Dir, char *)
NU_Remove_Dir        _SYSCALL1(int, NU_Remove_Dir, char *)
NU_Get_First        _SYSCALL2(int, NU_Get_First, struct dstat *, const char * /* pattern */)
NU_Get_Next        _SYSCALL1(int, NU_Get_Next, struct dstat *)
NU_Done           _SYSCALL1(void, NU_Done, struct dstat *)
NU_Set_Current_Dir     _SYSCALL1(void, NU_Set_Current_Dir, const char *)
NU_Current_Dir        _SYSCALL3(int, NU_Current_Dir, char *, const char *)
NU_Open           _SYSCALL3(int, NU_Read, char *, int, int)
NU_Close        _SYSCALL1(int, NU_Close, int)
NU_Read           _SYSCALL3(int, NU_Read, int, char *, int)
NU_Write _SYSCALL3(int, NU_Write, int, char *, int)
NU_Seek           _SYSCALL3(int, NU_Seek, int,int,int)
NU_Delete        _SYSCALL1(int, NU_Delete, char *)
NU_Rename        _SYSCALL2(int, NU_Rename, char *,char *)
NU_Flush        _SYSCALL1(int, NU_Flush, int)

fb39ca4 · « **Reply #379 on:** December 15, 2010, 07:37:03 pm »

The screen is the safest place to write to, because the adress never changes, and anything is allowed there.

DJ Omnimaga · « **Reply #380 on:** December 16, 2010, 04:40:06 am »

Quote from: fb39ca4 on December 15, 2010, 07:37:03 pm

The screen is the safest place to write to, because the adress never changes, and anything is allowed there.

Ah I see then. I guess it's a good idea unless you are in the middle of a game and don't want weird stuff to appear in the screen when walking around in a dungeon or something.

(Although I guess maybe only one row could be used at the bottom and it wouldn't be too noticeable)

ExtendeD · « **Reply #381 on:** December 16, 2010, 01:35:13 pm »

bsl, thanks so much!

ExtendeD · « **Reply #382 on:** December 17, 2010, 06:16:04 pm »

I have added much of these functions to the Subversion trunk. Some have been fixed (such as toupper which should be tolower). All are automatically tested and documented on Hackspire.

I prefer not to include some of the functions because of the redundancies between the libc, POSIX and Nucleus.

DJ Omnimaga · « **Reply #383 on:** December 17, 2010, 06:18:32 pm »

Cool to hear!

derangedyeti · « **Reply #384 on:** November 22, 2011, 01:10:56 am »

Hey everyone, first time poster, but I really need help, I just got the nspire with the touchpad, non CAS, and I accidentally installed 1.7 with the touchpad, the trick with DOC,EE,Enter, on does not work and I am quite distraught. Please help me unbrick this thing.

Jim Bauwens · « **Reply #385 on:** November 22, 2011, 03:57:51 am »

Well, do you mean ndless started acting weird, and your calculator froze?
Just try to push on the back reset button, and see if that helps

derangedyeti · « **Reply #386 on:** November 22, 2011, 03:34:46 pm »

Well I everytime I reset it, it loads 1.7, and I dont have the clickpad, I only have the touchpad, this causes it to be in a constant error screen and I cannot delete the current operating OS, not eve n with a combination of keys

shrear · « **Reply #387 on:** November 22, 2011, 03:54:11 pm »

Get a needle or something similar, press the reset-button at the back with it, while keeping it pressed down press Doc+Enter+EE, then while keeping these pressed release the reset-button and hold these three until the maintenance menu appears. Then just delete the OS and install another.

ExtendeD · « **Reply #388 on:** November 22, 2011, 04:01:27 pm »

Just to be sure, does this have anything to do with Ndless?

Goplat · « **Reply #389 on:** November 22, 2011, 06:35:53 pm »

Quote from: shrear on November 22, 2011, 03:54:11 pm

Get a needle or something similar, press the reset-button at the back with it, while keeping it pressed down press Doc+Enter+EE, then while keeping these pressed release the reset-button and hold these three until the maintenance menu appears. Then just delete the OS and install another.

Note that on the Touchpad you have to press "T" to select option 2 from the maintenance menu.

Author Topic: Ndless 1.7 for TI-Nspire (Read 147021 times)

bsl

Re: Ndless 1.7 for TI-Nspire

fb39ca4

Re: Ndless 1.7 for TI-Nspire

DJ Omnimaga

Re: Ndless 1.7 for TI-Nspire

bsl

Re: Ndless 1.7 for TI-Nspire

fb39ca4

Re: Ndless 1.7 for TI-Nspire

DJ Omnimaga

Re: Ndless 1.7 for TI-Nspire

ExtendeD

Re: Ndless 1.7 for TI-Nspire

ExtendeD

Re: Ndless 1.7 for TI-Nspire

DJ Omnimaga

Re: Ndless 1.7 for TI-Nspire

derangedyeti

Re: Ndless 1.7 for TI-Nspire

Jim Bauwens

Re: Ndless 1.7 for TI-Nspire

derangedyeti

Re: Ndless 1.7 for TI-Nspire

shrear

Re: Ndless 1.7 for TI-Nspire

ExtendeD

Re: Ndless 1.7 for TI-Nspire

Goplat

Re: Ndless 1.7 for TI-Nspire