Encoding
size instr off cond dest src <src> <srcoff> <dest> <dstoff>
xx xxxxxx x xxx xx xx <8,16,32 bits> <8 bits> <8,16,32 bits> <8 bits>
Size table
If the instruction doesn’t allow variable sizes or a size was not
specified, set the size bits to Word (0b10) | | | | :–: | ————– | | 0b00
| byte (8 bits) | | 0b01 | half (16 bits) | | 0b10 | word (32 bits)
|
Instruction table
| 0x |
-0 |
-1 |
-2 |
-3 |
-4 |
-5 |
-6 |
-7 |
-8 |
-9 |
-A |
-B |
-C |
-D |
-E |
-F |
| 0- |
NOP |
ADD[.8,16,32] |
MUL[.8,16,32] |
AND[.8,16,32] |
SLA[.8,16,32] |
SRA[.8,16,32] |
BSE[.8,16,32] |
CMP[.8,16,32] |
JMP |
RJMP |
PUSH[.8,16,32] |
IN |
ISE |
MSE |
|
|
| 1- |
HALT |
INC[.8,16,32] |
|
OR[.8,16,32] |
IMUL[.8,16,32] |
SRL[.8,16,32] |
BCL[.8,16,32] |
MOV[.8,16,32] |
CALL |
RCALL |
POP[.8,16,32] |
OUT |
ICL |
MCL |
|
|
| 2- |
BRK |
SUB[.8,16,32] |
DIV[.8,16,32] |
XOR[.8,16,32] |
ROL[.8,16,32] |
ROR[.8,16,32] |
BTS[.8,16,32] |
MOVZ[.8,16,32] |
LOOP |
RLOOP |
RET |
|
INT |
TLB |
|
|
| 3- |
|
DEC[.8,16,32] |
REM[.8,16,32] |
NOT[.8,16,32] |
IDIV[.8,16,32] |
IREM[.8,16,32] |
|
|
|
RTA |
RETI |
|
|
FLP |
|
|
Condition table
| 0b000 |
— |
always |
| 0b001 |
IFZ |
zero |
| 0b010 |
IFNZ |
not zero |
| 0b011 |
IFC |
carry |
| 0b011 |
IFLT |
less than (equivalent to IFC) |
| 0b100 |
IFNC |
not carry |
| 0b100 |
IFGTEQ |
greater than or equal to (equivalent to IFNC) |
| 0b101 |
IFGT |
greater than |
| 0b110 |
IFLTEQ |
less than or equal to |
Destination table
| 0b00 |
register |
| 0b01 |
register (pointer) |
| 0b10 |
(invalid) |
| 0b11 |
immediate (pointer) |
Source table
| 0b00 |
register |
| 0b01 |
register (pointer) |
| 0b10 |
immediate |
| 0b11 |
immediate (pointer) |
Register Pointer Offset
The off field indicates that each operand of type 0b01 (register
pointer) has an 8 bit immediate. This immediate is added to the value of
the register before derefencing.