illegal registers?
2006-12-26 by Thomas Keller
Here is an example of code I cannot assemble successfully. Again, it is
complaining about illegal register names, etc.:
.include "tn15def.inc"
; Define here the variables
;
.def temp =r16
; Define here Reset and interrupt vectors, if any
;
reset:
rjmp start
reti ; Addr $01
reti ; Addr $02
reti ; Addr $03
reti ; Addr $04
reti ; Addr $05
reti ; Addr $06 Use 'rjmp myVector'
reti ; Addr $07 to define a interrupt vector
reti ; Addr $08
reti ; Addr $09
reti ; Addr $0A
reti ; Addr $0B This is just an example
reti ; Addr $0C Not all MCUs have the same
reti ; Addr $0D number of interrupt vectors
reti ; Addr $0E
reti ; Addr $0F
reti ; Addr $10
; Program starts here after Reset
;
start:
nop ; Initialize here ports, stack pointer,
nop ; cleanup RAM, etc.
nop ;
nop ;
;
; this table povides the data for the intesnity curve needed for
; the beacon simlation. the data represent the value sin3 * 255 for
; each angle from 0 through 90 at .9 degree increments
TABLE:.db 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 2, 3, 3, 4, 5, 6, 6, 8
.db 9, 10, 11, 13, 14, 16, 18, 20, 22, 24, 26, 29, 31, 34, 36, 39
.db 44, 48, 52, 55, 59, 62, 66, 70, 74, 78, 82, 86, 90, 94, 99
.db 103, 108, 112, 117, 121, 126, 130, 135, 140, 144, 149, 153
.db 158, 163, 167, 172, 176, 180, 185, 189, 193, 197, 201, 205, 209
.db 212, 216, 219, 223, 226, 229, 232, 234, 237, 239, 242, 244, 246
.db 247, 249, 250, 252, 253, 254, 255, 255, 255
;
DELAY:
ld r31, 0xff ; load 255 into temp register
out r31, TCNT1 ; store in timer/counter 1
ld r16, 0xff ; store 255 into primary counter
ld r17, 0x49 ; store 73 into secondary
counter