ir[18]
ir[15:8]
ALU
dataReg
DM[255:0]
+
1x
00
1
0
ir[19:18]
ix
8'h00
ir[18]
0:@ direct addr.
|
ir[19:18] |
addressing mode |
|
00 |
immediate(#) |
|
01 |
acc |
|
10 |
direct addressing mode(@) |
|
11 |
indirect addressing mode($) |
01
acc