Я знаю как это работает, а вот с командами в Proton IDE у меня проблемы

Добавлено (04.04.2011, 18.33.21)
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привожу пример кода

Device = 16F628
Xtal = 4

Declare LCD_Type ALPHA
Declare LCD_DTPin PORTB.4
Declare LCD_ENPin PORTB.0
Declare LCD_RSPin PORTB.1
Declare LCD_Interface 4
Declare LCD_CommandUs 2000
Declare LCD_DataUs 50
Declare LCD_Lines 4
Declare All_Digital = On
CMCON = 7
TRISA = %11111111
TRISB = %00000000

Dim L As Byte
Dim R As Byte

Dim L1 As Float
Dim R1 As Float

main:
Print At 1, 1, "Analizator"

DelayMS 900
Cls
prog:
L1 = PORTA.0

If 0 < L1 And L1 < 10 Then: L = 0
If 10 < L1 And L1 < 10 Then: L = 1
If 20 < L1 And L1 < 10 Then: L = 2
If 30 < L1 And L1 < 10 Then: L = 3
If 40 < L1 And L1 < 10 Then: L = 4
R1 = PORTA.1
If 0 < R1 And R1 < 10 Then: R = 0
If 10 < R1 And R1 < 10 Then: R = 1
If 20 < R1 And R1 < 10 Then: R = 2
If 30 < R1 And R1 < 10 Then: R = 3
If 40 < R1 And R1 < 10 Then: R = 4

Но со строчки If 0 < L1 And L1 < 10 Then: L = 0
Proton ругаться начинает