uart.s

iic for avr very good

	.module uart.c
	.area text(rom, con, rel)
	.dbfile D:\myavrproject\icc\twi\uart.c
	.dbfunc e uart0_init _uart0_init fV
	.even
_uart0_init::
	.dbline -1
	.dbline 15
; //ICC-AVR application builder : 2007-1-9 14:28:21
; // Target : M8
; // Crystal: 8.0000Mhz
; 
; #include <iom8v.h>
; #include <macros.h>
; 
; 
; //UART0 initialize
; // desired baud rate: 9600
; // actual: baud rate:9615 (0.2%)
; // char size: 8 bit
; // parity: Disabled
; void uart0_init(void)
; {
	.dbline 16
;  UCSRB = 0x00; //disable while setting baud rate
	clr R2
	out 0xa,R2
	.dbline 17
;  UCSRA = 0x02;
	ldi R24,2
	out 0xb,R24
	.dbline 18
;  UCSRC = BIT(URSEL) | 0x06;
	ldi R24,134
	out 0x20,R24
	.dbline 19
;  UBRRL = 0x67; //set baud rate lo
	ldi R24,103
	out 0x9,R24
	.dbline 20
;  UBRRH = 0x00; //set baud rate hi
	out 0x20,R2
	.dbline 21
;  UCSRB = 0xF8;
	ldi R24,248
	out 0xa,R24
	.dbline -2
L1:
	.dbline 0 ; func end
	ret
	.dbend
	.area vector(rom, abs)
	.org 22
	rjmp _uart0_rx_isr
	.area text(rom, con, rel)
	.dbfile D:\myavrproject\icc\twi\uart.c
	.dbfunc e uart0_rx_isr _uart0_rx_isr fV
	.even
_uart0_rx_isr::
	.dbline -1
	.dbline 26
; }
; 
; #pragma interrupt_handler uart0_rx_isr:12
; void uart0_rx_isr(void)
; {
	.dbline -2
L2:
	.dbline 0 ; func end
	reti
	.dbend
	.area vector(rom, abs)
	.org 26
	rjmp _uart0_tx_isr
	.area text(rom, con, rel)
	.dbfile D:\myavrproject\icc\twi\uart.c
	.dbfunc e uart0_tx_isr _uart0_tx_isr fV
	.even
_uart0_tx_isr::
	.dbline -1
	.dbline 33
;  //uart has received a character in UDR
; 
; }
; 
; #pragma interrupt_handler uart0_tx_isr:14
; void uart0_tx_isr(void)
; {
	.dbline -2
L3:
	.dbline 0 ; func end
	reti
	.dbend