Mas can generate code for dozens of microcontrollers. So, we must
chose device. Name for device is like real name:
real name device name
PIC16C84 P16C84
PIC16F84 P16F84
(instead PIC just 'P').
With .device we chose device. All devices are in 'device' directory
and have extension .dev. For writing new device see '9. Device Description
File':
.device p16c84
start:
; some code
FIRST LINE OF CODE MUST BE DEVICE SPECIFICATION!
Every device has name (it is declared in .dev file). After specification
of device mas introduce new const name with value 1. That name is same
like device name except it is prefixed with '__'. It can be used in specific
include files:
.if .isndef __P12C509
.error Only for PIC12C509 devices
.endif
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