This is the Blink.asm file. After loading it into Ram which is at address if 8000h, The Port p3.5 cant blink. If I modify the program and load into Rom at address of 0000h, it Blinks! The Bootloader I am using is Steve's Bootloader3 1995.

Blink.asm :

LEDPIN BIT P3.5 ;your favorite port pin (LED preferred)

START CODE 8000H ;start address of user programs

TIME EQU 8 ;time constant in units of 250 ms (for 12 MHz)

ORG START ;program start address

BLINK: CPL LEDPIN ;toggle pin (Great, if connected to a LED!)
MOV R3,#TIME ;wait for TIME * 125 ms (12 MHz)
MOV R2,#0
MOV R1,#0
LOOP: DJNZ R1,LOOP
DJNZ R2,LOOP
DJNZ R3,LOOP
SJMP BLINK ;This is repeated forever,
;if you don't press reset ...
END

Blink.hex:
:10800000B2B57B087A007900D9FEDAFCDBFA80F0A1
:00000001FF



Thanks!