ACK byte? I just send the byte that the MCU recieved back to the computer.
I Dont understand why its not working,

Heres my code, I want to take each byte I recieve and store it into memory location starting at 80h and on...

WHILE:

JNB RI,$
MOV A,SBUF
//////// Gets recieve byte
mov r1,a
clr RI
mov a,#080h
add a,g
mov r0,a
mov a,r1
mov @R0,a
//////// Store recieve byte into memory location 80h,81h,82 depending on counter
mov a,r1
cpl a
///////// chek end byte FF
jz NORECI
jmp NEWBUF

NEWBUF:
///////// Inc counter and loop for next byte
inc g
sjmp WHILE

NORECI:
///////// end and send character "D" to screen
CLR TI
CLR RI
MOV SBUF,#044h
JNB TI,$
clr a
clr ti
clr ri


//// I took out the echo part to see if it was too slow, but it still does not work correctly. but it works somewhat