Instruction set
It looks like instructions are 8 bytes long. Roughly speaking - first 4 bytes contain opcode and addressing mode. Second 4 bytes contain operands encoding.
Bit encoding used in this reference:
| value |
meaning
|
| 0 |
bit clear
|
| 1 |
bit set
|
| x |
dont care
|
| ? |
unknown
|
Predicates:
Not sure about predicates yet, but they are used to mask execution of certain instructions.
Notation is the following:
<predicate> <instruction>
For example:
!p0 mad.f32
To reduce amount of examples - they are not listed with predicates.
It is assumed that all predicates are applicable to all instructions in the group unless opposite is indicated.
Modifier and dest data format:
At the moment it is not known which of the data format fields is dest and which is source.
This is the reason why term modifier is mixed with term dest data format.
0x00000000 - 0x08000000
Instructions: mad
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
data_format |
predicate
|
| 0 |
0 |
0 |
0 |
0 |
|
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Fields:
|
data_format:
|
predicate:
| 1 |
0 |
value
|
| 0 |
0 |
|
| 0 |
1 |
p0
|
| 1 |
0 |
!p0
|
| 1 |
1 |
Pn
|
|
|
Examples:
mad.f32
mad.f16
0x08000000 - 0x10000000
Instructions: mul.f32
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate
|
| 0 |
0 |
0 |
0 |
1 |
|
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Fields:
predicate:
| 2 |
1 |
0 |
value
|
| 0 |
0 |
0 |
|
| 0 |
0 |
1 |
p0
|
| 0 |
1 |
0 |
p1
|
| 0 |
1 |
1 |
p2
|
| 1 |
0 |
0 |
!p0
|
| 1 |
0 |
1 |
!p1
|
| 1 |
1 |
0 |
!p2
|
| 1 |
1 |
1 |
Pn
|
Examples:
mul.f32
0x10000000 - 0x18000000
Instructions: mul.f16
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate
|
| 0 |
0 |
0 |
1 |
0 |
|
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Fields:
predicate:
| 2 |
1 |
0 |
value
|
| 0 |
0 |
0 |
|
| 0 |
0 |
1 |
p0
|
| 0 |
1 |
0 |
p1
|
| 0 |
1 |
1 |
p2
|
| 1 |
0 |
0 |
!p0
|
| 1 |
0 |
1 |
!p1
|
| 1 |
1 |
0 |
!p2
|
| 1 |
1 |
1 |
Pn
|
Examples:
mul.f16
0x18000000 - 0x20000000
Instructions: dot.f32, mad.f32
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate
|
| 0 |
0 |
0 |
1 |
1 |
|
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
opcode2 |
|
| x |
x |
|
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Fields:
|
opcode2:
| 5 |
value
|
| 0 |
dot.f32
|
| 1 |
mad.f32
|
|
predicate:
| 2 |
1 |
0 |
value
|
| 0 |
0 |
0 |
|
| 0 |
0 |
1 |
p0
|
| 0 |
1 |
0 |
p1
|
| 0 |
1 |
1 |
p2
|
| 1 |
0 |
0 |
!p0
|
| 1 |
0 |
1 |
!p1
|
| 1 |
1 |
0 |
!p2
|
| 1 |
1 |
1 |
Pn
|
|
Examples:
dot.f32
mad.f32
0x20000000 - 0x28000000
Instructions: dot, mov, rsq, rcp, exp, log
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
predicate
|
| 0 |
0 |
1 |
0 |
0 |
x |
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
op_sel |
data_format |
|
| x |
|
|
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
opcode2 |
|
| x |
|
|
|
1 |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Notes:
Having bit 3 in byte 2 set to 0 produces invalid instruction
Fields:
|
data_format:
|
predicate:
| 1 |
0 |
value
|
| 0 |
0 |
|
| 0 |
1 |
p0
|
| 1 |
0 |
!p0
|
| 1 |
1 |
Pn
|
|
opcode2 (depends on op_sel):
| op_sel |
6 |
5 |
4 |
value
|
| 0 |
0 |
0 |
0 |
invalid
|
| 0 |
0 |
0 |
1 |
invalid
|
| 0 |
0 |
1 |
0 |
dot
|
| 0 |
0 |
1 |
1 |
invalid
|
| 0 |
1 |
0 |
0 |
invalid
|
| 0 |
1 |
0 |
1 |
mov
|
| 0 |
1 |
1 |
0 |
rsq
|
| 0 |
1 |
1 |
1 |
rcp
|
|
| op_sel |
6 |
5 |
4 |
value
|
| 1 |
0 |
0 |
0 |
invalid
|
| 1 |
0 |
0 |
1 |
invalid
|
| 1 |
0 |
1 |
0 |
invalid
|
| 1 |
0 |
1 |
1 |
invalid
|
| 1 |
1 |
0 |
0 |
exp
|
| 1 |
1 |
0 |
1 |
log
|
| 1 |
1 |
1 |
0 |
invalid
|
| 1 |
1 |
1 |
1 |
invalid
|
|
Examples:
dot.f32
mov.f32
rsq.f32
rcp.f32
exp.f32
log.f32
dot.f16
mov.f16
rsq.f16
rcp.f16
exp.f16
log.f16
0x28000000 - 0x30000000
Instructions: dot, mov, rsq, rcp
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
predicate
|
| 0 |
0 |
1 |
0 |
1 |
x |
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
data_format |
|
| x |
x |
|
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
opcode2 |
|
| x |
|
|
|
1 |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Notes:
Having bit 3 in byte 2 set to 0 produces invalid instruction
Fields:
|
data_format:
|
predicate:
| 1 |
0 |
value
|
| 0 |
0 |
|
| 0 |
1 |
p0
|
| 1 |
0 |
!p0
|
| 1 |
1 |
Pn
|
|
opcode2:
| 6 |
5 |
4 |
value
|
| 0 |
0 |
0 |
invalid
|
| 0 |
0 |
1 |
invalid
|
| 0 |
1 |
0 |
dot
|
| 0 |
1 |
1 |
invalid
|
| 1 |
0 |
0 |
invalid
|
| 1 |
0 |
1 |
mov
|
| 1 |
1 |
0 |
rsq
|
| 1 |
1 |
1 |
rcp
|
Examples:
dot.f32
mov.f32
rsq.f32
rcp.f32
dot.f16
mov.f16
rsq.f16
rcp.f16
0x30000000 - 0x38000000
Instructions: rcp, rsq, log, exp
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate
|
| 0 |
0 |
1 |
1 |
0 |
|
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
data_format |
|
| x |
|
|
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
opcode2 |
modifier
|
| x |
x |
x |
x |
x |
|
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Notes:
modifier should be omitted if data_format matches modifier.
Fields:
|
opcode2:
| 2 |
1 |
value
|
| 0 |
0 |
rcp
|
| 0 |
1 |
rsq
|
| 1 |
0 |
log
|
| 1 |
1 |
exp
|
|
data_format:
| 6 |
5 |
value
|
| 0 |
0 |
f32
|
| 0 |
1 |
f16
|
| 1 |
0 |
fx10
|
| 1 |
1 |
invalid
|
|
modifier:
|
predicate:
| 2 |
1 |
0 |
value
|
| 0 |
0 |
0 |
|
| 0 |
0 |
1 |
p0
|
| 0 |
1 |
0 |
p1
|
| 0 |
1 |
1 |
p2
|
| 1 |
0 |
0 |
p3
|
| 1 |
0 |
1 |
!p0
|
| 1 |
1 |
0 |
!p1
|
| 1 |
1 |
1 |
Pn
|
|
Examples:
rcp.f32
rsq.f32
log.f32
exp.f32
rcp.f32.fx10
rsq.f32.fx10
log.f32.fx10
exp.f32.fx10
rcp.f16.f32
rsq.f16.f32
log.f16.f32
exp.f16.f32
rcp.f16.fx10
rsq.f16.fx10
log.f16.fx10
exp.f16.fx10
rcp.fx10.f32
rsq.fx10.f32
log.fx10.f32
exp.fx10.f32
rcp.fx10
rsq.fx10
log.fx10
exp.fx10
0x38000000 - 0x40000000
Instructions: mov, cmov, cmov8
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate
|
| 0 |
0 |
1 |
1 |
1 |
|
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
cond |
|
| x |
|
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode2 |
|
data_format
|
|
|
x |
x |
x |
|
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Notes:
cond is only applicable to cmov and cmov8 since this is conditional move.
Fields:
|
opcode2:
| 7 |
6 |
value
|
| 0 |
0 |
mov
|
| 0 |
1 |
cmov
|
| 1 |
0 |
cmov8
|
| 1 |
1 |
invalid
|
|
cond:
| 6 |
value
|
| 0 |
eqzero
|
| 1 |
ltzero
|
|
data_format:
| 2 |
1 |
0 |
value
|
| 0 |
0 |
0 |
i8
|
| 0 |
0 |
1 |
i16
|
| 0 |
1 |
0 |
i32
|
| 0 |
1 |
1 |
fx10
|
| 1 |
0 |
0 |
f16
|
| 1 |
0 |
1 |
f32
|
| 1 |
1 |
0 |
invalid
|
| 1 |
1 |
1 |
invalid
|
|
predicate:
| 2 |
1 |
0 |
value
|
| 0 |
0 |
0 |
|
| 0 |
0 |
1 |
p0
|
| 0 |
1 |
0 |
p1
|
| 0 |
1 |
1 |
p2
|
| 1 |
0 |
0 |
p3
|
| 1 |
0 |
1 |
!p0
|
| 1 |
1 |
0 |
!p1
|
| 1 |
1 |
1 |
Pn
|
|
Examples:
mov.i8
mov.i16
mov.i32
mov.fx10
mov.f16
mov.f32
cmov.eqzero.i8
cmov.eqzero.i16
cmov.eqzero.i32
cmov.eqzero.fx10
cmov.eqzero.f16
cmov.eqzero.f32
cmov8.eqzero.i8
cmov8.eqzero.i16
cmov8.eqzero.i32
cmov8.eqzero.fx10
cmov8.eqzero.f16
cmov8.eqzero.f32
cmov.ltzero.i8
cmov.ltzero.i16
cmov.ltzero.i32
cmov.ltzero.fx10
cmov.ltzero.f16
cmov.ltzero.f32
cmov8.ltzero.i8
cmov8.ltzero.i16
cmov8.ltzero.i32
cmov8.ltzero.fx10
cmov8.ltzero.f16
cmov8.ltzero.f32
0x40000000 - 0x48000000
Instructions: pack, (mov)
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate
|
| 0 |
1 |
0 |
0 |
0 |
|
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
modifier |
data_format
|
| x |
x |
x |
x |
|
|
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Notes:
when modifier matches data_format it shall be omitted since it has no effect in terms of packing.
furthermore instruction mnemonic shall be replaced to mov
Fields:
|
data_format:
|
modifier:
| 3 |
2 |
1 |
value
|
| 0 |
0 |
0 |
u8
|
| 0 |
0 |
1 |
s8
|
| 0 |
1 |
0 |
o8
|
| 0 |
1 |
1 |
u16
|
| 1 |
0 |
0 |
s16
|
| 1 |
0 |
1 |
f16
|
| 1 |
1 |
0 |
f32
|
| 1 |
1 |
1 |
invalid
|
|
predicate:
| 2 |
1 |
0 |
value
|
| 0 |
0 |
0 |
|
| 0 |
0 |
1 |
p0
|
| 0 |
1 |
0 |
p1
|
| 0 |
1 |
1 |
p2
|
| 1 |
0 |
0 |
p3
|
| 1 |
0 |
1 |
!p0
|
| 1 |
1 |
0 |
!p1
|
| 1 |
1 |
1 |
Pn
|
|
Examples:
mov.u8
pack.s16.u8
pack.u8.s8
pack.s16.s8
pack.u8.o8
pack.s16.o8
pack.u8.u16
pack.s16.u16
pack.u8.s16
mov.s16
pack.u8.f16
pack.s16.f16
pack.u8.f32
pack.s16.f32
0x48000000 - 0x50000000
Instructions: this group only contains illegal instructions
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
| 0 |
1 |
0 |
0 |
1 |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
0x50000000 - 0x58000000
Instructions: and.u32
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate
|
| 0 |
1 |
0 |
1 |
0 |
|
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Fields:
predicate:
| 2 |
1 |
0 |
value
|
| 0 |
0 |
0 |
|
| 0 |
0 |
1 |
p0
|
| 0 |
1 |
0 |
p1
|
| 0 |
1 |
1 |
p2
|
| 1 |
0 |
0 |
p3
|
| 1 |
0 |
1 |
!p0
|
| 1 |
1 |
0 |
!p1
|
| 1 |
1 |
1 |
Pn
|
Examples:
and.u32
0x58000000 - 0x60000000
Instructions: xor.u32
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate
|
| 0 |
1 |
0 |
1 |
1 |
|
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Fields:
predicate:
| 2 |
1 |
0 |
value
|
| 0 |
0 |
0 |
|
| 0 |
0 |
1 |
p0
|
| 0 |
1 |
0 |
p1
|
| 0 |
1 |
1 |
p2
|
| 1 |
0 |
0 |
p3
|
| 1 |
0 |
1 |
!p0
|
| 1 |
1 |
0 |
!p1
|
| 1 |
1 |
1 |
Pn
|
Examples:
xor.u32
0x60000000 - 0x68000000
Instructions: shl.u32
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate
|
| 0 |
1 |
1 |
0 |
0 |
|
|
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Fields:
predicate:
| 2 |
1 |
0 |
value
|
| 0 |
0 |
0 |
|
| 0 |
0 |
1 |
p0
|
| 0 |
1 |
0 |
p1
|
| 0 |
1 |
1 |
p2
|
| 1 |
0 |
0 |
p3
|
| 1 |
0 |
1 |
!p0
|
| 1 |
1 |
0 |
!p1
|
| 1 |
1 |
1 |
Pn
|
Examples:
shl.u32
0x68000000 - 0x70000000
Instructions: shr.u32
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate
|
| 0 |
1 |
1 |
0 |
1 |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Fields:
predicate:
| 2 |
1 |
0 |
value
|
| 0 |
0 |
0 |
|
| 0 |
0 |
1 |
p0
|
| 0 |
1 |
0 |
p1
|
| 0 |
1 |
1 |
p2
|
| 1 |
0 |
0 |
p3
|
| 1 |
0 |
1 |
!p0
|
| 1 |
1 |
0 |
!p1
|
| 1 |
1 |
1 |
Pn
|
Examples:
shr.u32
0x70000000 - 0x78000000
Instructions: rlp.u32
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate
|
| 0 |
1 |
1 |
1 |
0 |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Fields:
predicate:
| 2 |
1 |
0 |
value
|
| 0 |
0 |
0 |
|
| 0 |
0 |
1 |
p0
|
| 0 |
1 |
0 |
p1
|
| 0 |
1 |
1 |
p2
|
| 1 |
0 |
0 |
p3
|
| 1 |
0 |
1 |
!p0
|
| 1 |
1 |
0 |
!p1
|
| 1 |
1 |
1 |
Pn
|
Examples:
rlp.u32
0x78000000 - 0x80000000
Instructions: this group only contains illegal instructions
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
| 0 |
1 |
1 |
1 |
1 |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
0x80000000 - 0x88000000
Instructions: add.fx8
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate |
|
| 1 |
0 |
0 |
0 |
0 |
|
|
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Fields:
predicate:
| 2 |
1 |
value
|
| 0 |
0 |
|
| 0 |
1 |
p0
|
| 1 |
0 |
p1
|
| 1 |
1 |
!p0
|
Examples:
add.fx8
0x88000000 - 0x90000000
Instructions: add.fx8, sub.fx8
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate |
|
| 1 |
0 |
0 |
0 |
1 |
|
|
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
opcode2 |
|
| x |
x |
|
|
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
0 |
0 |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Notes:
Having bits 2, 3 in byte 2 set to 1 produces invalid instruction
Fields:
|
opcode2:
| 5 |
4 |
value
|
| 0 |
0 |
add.fx8
|
| 0 |
1 |
sub.fx8
|
| 1 |
0 |
invalid
|
| 1 |
1 |
invalid
|
|
predicate:
| 2 |
1 |
value
|
| 0 |
0 |
|
| 0 |
1 |
p0
|
| 1 |
0 |
p1
|
| 1 |
1 |
!p0
|
|
Examples:
add.fx8
sub.fx8
0x90000000 - 0x98000000
Instructions: add.fx8, sub.fx8, min.fx8, max.fx8
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate |
|
| 1 |
0 |
0 |
1 |
0 |
|
|
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
opcode2 |
|
| x |
x |
|
|
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Notes:
Having bit 0 in byte 2 set to 1 produces invalid instruction
Fields:
|
opcode2:
| 5 |
4 |
value
|
| 0 |
0 |
add.fx8
|
| 0 |
1 |
sub.fx8
|
| 1 |
0 |
min.fx8
|
| 1 |
1 |
max.fx8
|
|
predicate:
| 2 |
1 |
value
|
| 0 |
0 |
|
| 0 |
1 |
p0
|
| 1 |
0 |
p1
|
| 1 |
1 |
!p0
|
|
Examples:
add.fx8
sub.fx8
min.fx8
max.fx8
0x98000000 - 0xA0000000
Instructions: mad.u8
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate |
|
| 1 |
0 |
0 |
1 |
1 |
|
|
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
modifier |
|
| x |
x |
x |
x |
|
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Fields:
|
modifier:
|
predicate:
| 2 |
1 |
value
|
| 0 |
0 |
|
| 0 |
1 |
p0
|
| 1 |
0 |
p1
|
| 1 |
1 |
!p0
|
|
Examples:
mad.u8
mad.sat.u8
0xA0000000 - 0xA8000000
Instructions: mad
Encoding:
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
predicate |
|
| 1 |
0 |
1 |
0 |
0 |
|
|
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| x |
x |
x |
x |
x |
x |
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
data_format |
modifier |
|
| x |
x |
x |
x |
|
|
x |
x
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
Fields:
data_format:
modifier:
0xA8000000 - 0xB0000000
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
| 1 |
0 |
1 |
0 |
1 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
0xB0000000 - 0xB8000000
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
| 1 |
0 |
1 |
1 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
0xB8000000 - 0xC0000000
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
| 1 |
0 |
1 |
1 |
1 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
0xC0000000 - 0xC8000000
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
| 1 |
1 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
0xC8000000 - 0xD0000000
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
| 1 |
1 |
0 |
0 |
1 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
0xD0000000 - 0xD8000000
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
| 1 |
1 |
0 |
1 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
0xD8000000 - 0xE0000000
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
| 1 |
1 |
0 |
1 |
1 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
0xE0000000 - 0xE8000000
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
| 1 |
1 |
1 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
0xE8000000 - 0xF0000000
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
| 1 |
1 |
1 |
0 |
1 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
0xF0000000 - 0xF8000000
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
| 1 |
1 |
1 |
1 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|
0xF8000000 - 0xFF000000
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
| opcode1 |
|
| 1 |
1 |
1 |
1 |
1 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0
|
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
|
|
|
|
|
|
|
|
| ? |
? |
? |
? |
? |
? |
? |
?
|
|