| 0x00 |
stop |
stop processor |
| 0x01 |
nop |
no operation |
| 0x02 |
cache |
set cache base register |
| 0x03 |
lsr |
arithmetic shift left |
| 0x04 |
rol |
rotate left through carry |
| 0x05 |
bra
|
branch always |
| 0x06 |
bge
|
branch on greater than |
| 0x07 |
blt
|
branch on less than |
| 0x08 |
bne
|
branch on not equal |
| 0x09 |
beq
|
branch on equal |
| 0x0a |
bpl
|
branch on plus |
| 0x0b |
bmi
|
branch on minus |
| 0x0c |
bcc
|
branch on carry clear |
| 0x0d |
bcs
|
branch on carry set |
| 0x0e |
bvc
|
branch on overflow clear |
| 0x0f |
bvs
|
branch on overflow set |
| 0x1n |
to Rn |
set Dreg |
| 0x2n |
with Rn |
set Sreg and Dreg |
| 0x3n |
stw Rn |
store word data to RAM |
| 0x3c |
loop |
loop |
| 0x3d |
alt1 |
first instruction set |
| 0x3e |
alt2 |
second instruction set |
| 0x3f |
alt3 |
third instruction set (alt1 = 1, alt2 = 1) |
| 0x4n |
ldw Rn |
load word data from RAM |
| 0x4c |
plot |
plot pixel |
| 0x4d |
swap |
swap low and high byte |
| 0x4e |
color |
set plot color |
| 0x4f |
not |
invert all bits |
| 0x5n |
add Rn |
add |
| 0x6n |
sub Rn |
subtract |
| 0x70 |
merge |
merge high byte of R8 and R7 |
| 0x7n |
and Rn |
logical AND |
| 0x8n |
mult Rn |
multiply |
| 0x90 |
sbk |
store word data, last RAM address used |
| 0x91 |
link #xx |
link return address |
| 0x95 |
sex |
sign extend register |
| 0x96 |
asr |
arithmetic shift right |
| 0x97 |
ror |
rotate right through carry |
| 0x9n |
jmp Rn |
jump |
| 0x9e |
lob |
value of low byte of register |
| 0x9f |
fmult |
fractional signed multiply |
| 0xan |
ibt Rn,#xx |
load immediate byte data |
| 0xbn |
from Rn |
set Sreg |
| 0xc0 |
hib |
value of high byte of register |
| 0xcn |
or Rn |
logical OR |
| 0xdn |
inc Rn |
increment |
| 0xdf |
getc |
get byte from ROM to color register |
| 0xen |
dec Rn |
decrement |
| 0xef |
getb |
get byte from ROM buffer |
| 0xfn |
iwt Rn,#xx |
load immediate word data |