gnupic: Help needed
Subject:
Help needed
From:
Julian Green ####@####.####
Date:
13 Sep 2004 16:45:23 +0100
Message-Id: <20040913164545.W57383-100000@pschulz.lon.yahoo.com>
Im doing a project with the PIC16F871, and I am using a number of lookup
tables that uses computed goto. Is there a way of getting the linker to
chose an address for the table that does not cross page boundaries?
e.g.
CRC16_Lookup:
global CRC16_Lookup
movwf temp
movlw High($)
movwf PCLATH
movfw temp
ANDLW 0x1F
ADDWF PCL, F
RETLW 0x00 ; LOW Byte Data
RETLW 0x21
RETLW 0x42
RETLW 0x63
RETLW 0x84
RETLW 0xA5
RETLW 0xC6
RETLW 0xE7
RETLW 0x08
RETLW 0x29
RETLW 0x4A
RETLW 0x6B
RETLW 0x8C
RETLW 0xAD
RETLW 0xCE
RETLW 0xEF
RETLW 0x00 ; HIGH Byte DATA
RETLW 0x10
RETLW 0x20
RETLW 0x30
RETLW 0x40
RETLW 0x50
RETLW 0x60
RETLW 0x70
RETLW 0x81
RETLW 0x91
RETLW 0xA1
RETLW 0xB1
RETLW 0xC1
RETLW 0xD1
RETLW 0xE1
RETLW 0xF1
Many thanks
Julian
