Difference between revisions of "Pk howto"
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#include <phantom.h> | #include <phantom.h> | ||
#include <stdio.h> | #include <stdio.h> | ||
| − | + | // | |
| + | //definition of virtual task1 function | ||
int task1(void * param1,void * param2); | int task1(void * param1,void * param2); | ||
| − | + | // | |
| − | + | //our main | |
void main() | void main() | ||
{ | { | ||
| − | int maintask; | + | int maintask;// this will be our task handler |
| − | + | // | |
| − | pg_init(); | + | // |
| − | pc_init(); | + | pg_init(); // init of graphics subsystem |
| − | ps_init(); | + | pc_init(); // init of control subsystem |
| − | + | ps_init(); // init of systemwide parameters, including libc | |
| − | maintask=pk_createtask(task1,100); | + | // |
| − | + | maintask=pk_createtask(task1,100);//task creation -- priority is set to average (255 - max. 0 - min) | |
| − | while(maintask) | + | // |
| − | pk_yield(); | + | // |
| − | + | while(maintask) // waiting for task completion -- the handler of destroyed task will be 0 | |
| − | pk_destroytask(main); | + | pk_yield(); // yield CPU time to any one.... be nice to others |
| + | // | ||
| + | pk_destroytask(main); //perform suicide :) | ||
} | } | ||
| − | + | // | |
| + | // | ||
int task1(void * param1,void * param2) | int task1(void * param1,void * param2) | ||
{ | { | ||
| − | int m_vbl; | + | int m_vbl; /// our vbl handler |
| − | int m_bitmap; | + | int m_bitmap; // our bitmap handler |
| − | + | // | |
| − | m_vbl=pg_createvbl(VBL_DEFAULT); | + | m_vbl=pg_createvbl(VBL_DEFAULT); // create standard vbl |
| − | m_bitmap=pg_createbitmap(320,240,16); | + | // |
| − | pg_attachstream(m_bitmap,stdio); | + | m_bitmap=pg_createbitmap(320,240,16); // create bitmap, 320x240 pixels with 16 bit colors |
| − | pg_vblattachbitmap(m_vbl,m_bitmap); | + | // |
| − | pg_applyvbl(m_vbl); | + | pg_attachstream(m_bitmap,stdio); // attach our stdio stream, to appear on bitmap as text |
| − | + | pg_vblattachbitmap(m_vbl,m_bitmap); // attach our bitmap to our vbl -- currently no other parameters | |
| + | pg_applyvbl(m_vbl); // attach our vbl into system display list -- enables our display | ||
| + | // | ||
printf("Hello world\n"); | printf("Hello world\n"); | ||
| − | printf("(c) 2006 Felix.\n"); | + | printf("(c) 2006 Felix.\n"); // :) |
| − | + | // | |
| − | while(pc_padhit(0)==0) | + | while(pc_padhit(0)==0) //wait for any button press on joypad 0 |
| − | pk_yield(); | + | pk_yield(); //be nice to others |
| − | + | // | |
| − | pg_attachstream(m_bitmap,0); | + | pg_attachstream(m_bitmap,0); // remove stream attachement |
| − | pg_removevbl(m_vbl); | + | pg_removevbl(m_vbl); // remove our vbl from system display list --- at this point all user will see is a blank screen |
| − | pg_vblremovebitmap(m_bitmap); | + | pg_vblremovebitmap(m_vbl,m_bitmap); // remove our bitmap from our vbl |
| − | pg_destroybitmap(m_bitmap); | + | pg_destroybitmap(m_bitmap); // destroy our bitmap |
| − | pg_destroyvbl(m_vbl); | + | pg_destroyvbl(m_vbl); // destroy our vbl |
| − | + | // | |
| − | pk_destroytask(task1); | + | pk_destroytask(task1); // perform suicide |
} | } | ||
Latest revision as of 20:24, 5 September 2006
The typical Phantom development flow is
development of the title -> compilation -> creating the disk structure -> mkisofs -> blessiso -> sign
all steps are obvious besides, may be, creating of the disk structure.
here is the sample disk structure
/ | +---Phantom.sys | | +---foo | | | | | +--- foo2.elf | +--- autostart.cmd
where -- Phantom.sys is directory, supplied with Phantom SDK, just copy it to the root of the disk; foo -- sample directory, foo2.elf -- sample file executable file, autostart.cmd -- script, executed upon disk booting.
In order to sucessfully initialize Phantom SDK one should include following lines in the begining of the autostart.cmd
!kernel.complete !graphics.load !sound.load !hardware.complete !hardware.authorize !device.load !device.createevents /foo/foo2.elf
where foo2.elf -- is name of your main executable, which should start upon disk boot-up.
And here is the sample "Hello world" program.
#include <phantom.h>
#include <stdio.h>
//
//definition of virtual task1 function
int task1(void * param1,void * param2);
//
//our main
void main()
{
int maintask;// this will be our task handler
//
//
pg_init(); // init of graphics subsystem
pc_init(); // init of control subsystem
ps_init(); // init of systemwide parameters, including libc
//
maintask=pk_createtask(task1,100);//task creation -- priority is set to average (255 - max. 0 - min)
//
//
while(maintask) // waiting for task completion -- the handler of destroyed task will be 0
pk_yield(); // yield CPU time to any one.... be nice to others
//
pk_destroytask(main); //perform suicide :)
}
//
//
int task1(void * param1,void * param2)
{
int m_vbl; /// our vbl handler
int m_bitmap; // our bitmap handler
//
m_vbl=pg_createvbl(VBL_DEFAULT); // create standard vbl
//
m_bitmap=pg_createbitmap(320,240,16); // create bitmap, 320x240 pixels with 16 bit colors
//
pg_attachstream(m_bitmap,stdio); // attach our stdio stream, to appear on bitmap as text
pg_vblattachbitmap(m_vbl,m_bitmap); // attach our bitmap to our vbl -- currently no other parameters
pg_applyvbl(m_vbl); // attach our vbl into system display list -- enables our display
//
printf("Hello world\n");
printf("(c) 2006 Felix.\n"); // :)
//
while(pc_padhit(0)==0) //wait for any button press on joypad 0
pk_yield(); //be nice to others
//
pg_attachstream(m_bitmap,0); // remove stream attachement
pg_removevbl(m_vbl); // remove our vbl from system display list --- at this point all user will see is a blank screen
pg_vblremovebitmap(m_vbl,m_bitmap); // remove our bitmap from our vbl
pg_destroybitmap(m_bitmap); // destroy our bitmap
pg_destroyvbl(m_vbl); // destroy our vbl
//
pk_destroytask(task1); // perform suicide
}
