hello all,
i am trying to incorporate rtxtiny to blink two LEDs connected to 90h and 91h.
it is written in keil µvision2 the code is as follows,

#include<rtx51tny.h>

job0 () _task_ 0
{

os_create_task(1);


while(1)
{
#pragma asm
setb 91h
mov r0,#0xff
mov r1,#0xff
up1:
nop
djnz r1,up1
djnz r2,up1

clr 91h
mov r0,#0xff
mov r1,#0xff
up2:
nop
djnz r1,up2
djnz r2,up2


#pragma endasm
}
}


job1 () _task_ 1
{

while(1)
{
#pragma asm
setb 90h
mov r0,#0xff
mov r1,#0xff
up3:
nop
djnz r1,up3
djnz r2,up3

clr 90h
mov r0,#0xff
mov r1,#0xff
up4:
nop
djnz r1,up4
djnz r2,up4


#pragma endasm
}
}

------------------------------------------------------
The disassembly of the above program is given below.

the problem is LED connected to 90h glows continuously and not according to what i expect in the above program. that program should blink LED connected to 90h and 91h.




8051 Disassembly of go.hex
;
org 0
;
X0000: mov r7,#1
lcall X0000 /// why this lcall is used here? //
X0005: setb p1.1
mov r0,#0ffh
mov r1,#0ffh
X000b: nop
djnz r1,X000b
djnz r2,X000b
clr p1.1
mov r0,#0ffh
mov r1,#0ffh
X0016: nop
djnz r1,X0016
djnz r2,X0016
sjmp X0005
;
X001d: setb p1.0
mov r0,#0ffh
mov r1,#0ffh
X0023: nop
djnz r1,X0023
djnz r2,X0023
clr p1.0
mov r0,#0ffh
mov r1,#0ffh
X002e: nop
djnz r1,X002e
djnz r2,X002e
sjmp X001d
;

;
;
end


please suggest me how to operate on this. this is the first time i am using RTOSTINY.

regards,
hemanth