Thanks for the replied. I am using an 18F2550 @ 48MHz. I want to choose baud rate based on 4 external jumpers.

When i dont have the DEFINEs I get the following warning:

Warning[202] \PBP\PBPPIC18.LIB 7605 : arguement out of range. least significant bits used.

Here's my code:

Code:
Define OSC 48
ADCON0=0                            
ADCON1=$0F
TRISB=$FF
INTCON2.7=0 ' Turn on weak pull ups on port B

baud VAR BYTE

baud=PORTB&%00111100

RCSTA = $90                     ' Enable serial port & continuous receive

SELECT CASE baud
    CASE 60
        TXSTA = $20             ' Enable transmit, BRGH = 0
        SPBRG = 15              ' 300 Baud @ 48MHz, 0.0%
        SPBRGH = 39
    CASE 28  
        TXSTA = $20             ' Enable transmit, BRGH = 0
        SPBRG = 135             ' 600 Baud @ 48MHz, 0.0%
        SPBRGH = 19
    CASE 44
        TXSTA = $20             ' Enable transmit, BRGH = 0
        SPBRG = 195             ' 1200 Baud @ 48MHz, 0.0%
        SPBRGH = 9
    CASE 12
        TXSTA = $20             ' Enable transmit, BRGH = 0
        SPBRG = 225             ' 2400 Baud @ 48MHz, 0.0%
        SPBRGH = 4
    CASE 52
        TXSTA = $20             ' Enable transmit, BRGH = 0
        SPBRG = 112             ' 4800 Baud @ 48MHz, 0.0%
        SPBRGH = 2
    CASE 20
        TXSTA = $24             ' Enable transmit, BRGH = 1
        SPBRG = 225             ' 9600 Baud @ 48MHz, 0.0%
        SPBRGH = 4
    CASE 36
        TXSTA = $24             ' Enable transmit, BRGH = 1
        SPBRG = 112             ' 19200 Baud @ 48MHz, 0.0%
        SPBRGH = 2
    CASE 4
        TXSTA = $24             ' Enable transmit, BRGH = 1
        SPBRG = 56              ' 38400 Baud @ 48MHz, -0.16%
        SPBRGH = 1
    CASE 56
        TXSTA = $20             ' Enable transmit, BRGH = 0
        SPBRG = 51              ' 57600 Baud @ 48MHz, 0.16%
        SPBRGH = 0
    CASE 24
        TXSTA = $20             ' Enable transmit, BRGH = 0
        SPBRG = 25              ' 115200 Baud @ 48MHz, 0.16%
        SPBRGH = 0
    CASE ELSE
        TXSTA = $24             ' Enable transmit, BRGH = 1
        SPBRG = 225             ' 9600 Baud @ 48MHz, 0.0%
        SPBRGH = 4
END SELECT
BAUDCON.3 = 1                   ' Enable 16 bit baudrate generator

HSEROUT ["Hello World!"]
If I put in the DEFINES, or if I remove the HSEROUT line, the warning goes away.