View source for RealQ16s:Provisional instruction listing/Opcode table/1 byte instructions

{| class="wikitable" border="1"
|-
! colspan="8" | Range
! Operation
! colspan="8" | bits
! Distinct<br/>opcodes
! Comment
! Caveats 
|-
| colspan="4" | 0000
| colspan="4" | 0000
| {{Provisional opcode|16s|NOP}}
| colspan="4" | 0000
| colspan="4" | 0000
| style="text-align:right" | x1
| Does nothing
|
|-
| colspan="4" | 0000
| colspan="4" | 0001
| (unused)
| colspan="4" | 0000
| colspan="4" | 0001
| colspan="3" rowspan="3" | (x15 opcodes)
|-
| colspan="8" | ...
| ...
| colspan="8" | ...
|-
| colspan="4" | 0000
| colspan="4" | 1111
| ''(Unused)''
| colspan="4" | 0000
| colspan="4" | 1111
|-
| colspan="4" | 0001
| colspan="4" | 0000
| {{Provisional opcode|16s|MOV r1,r2}}
| colspan="4" | 0001
| colspan="2" | r1
| colspan="2" | r2
| style="text-align:right" | x12
| Store ''r1'' in ''r2'', treating them both as ''16 bit'' registers
| ''r1'' and ''r2'' must be different
|-
| colspan="8" rowspan="3" | ...
| ''(Unused)''
| colspan="4" | 0001
| colspan="4" | 0000
| style="text-align:right" | x1
|
|
|-
| ''(Unused)''
| colspan="4" | 0001
| colspan="4" | 0101
| style="text-align:right" | x1
|
|
|-
| ''(Unused)''
| colspan="4" | 0001
| colspan="4" | 1010
| style="text-align:right" | x1
|
|
|-
| colspan="4" | 0001
| colspan="4" | 1111
| ''(Unused)''
| colspan="4" | 0001
| colspan="4" | 1111
| style="text-align:right" | x1
|
|
|-
| colspan="4" | 0010
| colspan="4" | 0000
| {{Provisional opcode|16s|PUSH|r1}}
| colspan="4" | 0010
| colspan="2" | 00
| colspan="2" | r1
| style="text-align:right" | x4
| Push the ''16 bit'' register ''r1''
|
|-
| colspan="4" | 0010
| colspan="4" | 0100
| {{Provisional opcode|16s|POP|r1}}
| colspan="4" | 0010
| colspan="2" | 01
| colspan="2" | r1
| style="text-align:right" | x4
| Pop the ''16 bit'' register ''r1''
|
|-
| colspan="4" | 0010
| colspan="4" | 1000
| {{Provisional opcode|16s|MOV b1,r1L}}
| colspan="4" | 0010
| colspan="2" | 10
| colspan="2" | r1
| style="text-align:right" | x1024 (x4)
| '''''16 bit'' instruction''' <code>0010 10r1 vvvv vvvv</code> - move byte ''b1'' given by ''v'' into low byte of register ''r1''
|
|-
| colspan="4" | 0010
| colspan="4" | 1100
| {{Provisional opcode|16s|MOV b1,r1H}}
| colspan="4" | 0010
| colspan="2" | 11
| colspan="2" | r1
| style="text-align:right" | x1024 (x4)
| '''''16 bit'' instruction''' <code>0010 11r1 vvvv vvvv</code> - move byte ''b1'' given by ''v'' into high byte of register ''r1''
|
|-
| colspan="4" | 0011
| colspan="4" | 0000
| {{Provisional opcode|16s|MOVACO b1,r1L}}
| colspan="4" | 0011
| colspan="2" | 00
| colspan="2" | r1
| style="text-align:right" | x1024 (x4)
| '''''16 bit'' instruction''' <code>0010 11r1 vvvv vvvv</code> - move byte ''b1'' given by ''v'' into low byte of register ''r1'', then clear high byte of register ''r1''.
|
|-
| colspan="4" | 0011
| colspan="4" | 0100
|}