diff options
| author | iximeow <me@iximeow.net> | 2015-03-02 15:34:34 -0800 |
|---|---|---|
| committer | iximeow <me@iximeow.net> | 2015-03-02 15:34:34 -0800 |
| commit | 9827904a6aa6b649665cf78fa56716011fb37e6d (patch) | |
| tree | a7d7ef6c08fa92226bee434f5e6d29d179e80c21 /src/msp430_instruction | |
initial commit
Diffstat (limited to 'src/msp430_instruction')
| -rw-r--r-- | src/msp430_instruction | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/msp430_instruction b/src/msp430_instruction new file mode 100644 index 0000000..dfd297d --- /dev/null +++ b/src/msp430_instruction @@ -0,0 +1,77 @@ +byteOpFlag: bit{1} + +RRC := b000 +SWPB:= b001 +RRA := b010 +SXT := b011 +PUSH:= b100 +CALL:= b101 +RETI:= b110 + +oneOpCode: bit{3} := + RRC | SWPB | RRA | SXT | PUSH | CALL | RETI + +JNE := b000 +JEQ := b001 +JNC := b010 +JC := b011 +JN := b100 +JGE := b101 +JL := b110 +JMP := b111 + +jumpCondition: bit{3} := + JNE | JEQ | JNC | JC | JN | JGE | JL | JMP + +MOV := b0100 +ADD := b0101 +ADDC:= b0110 +SUBC:= b0111 +SUB := b1000 +CMP := b1001 +DADD:= b1010 +BIT := b1011 +BIC := b1100 +BIS := b1101 +XOR := b1110 +AND := b1111 + +twoOpCode: bit{4} := + MOV | ADD | ADDC | SUBC | SUB | CMP | DADD | BIT | BIC | BIS | XOR | AND + +Symbolic := b1 +Absolute := b1 +RegisterDirect := b0 +Indexed := b1 + +twoOpDestMode: bit{1} := + RegisterDirect | Indexed | Absolute | Symbolic + +NextWord := b11 +Const0 := b00 +Const1 := b01 +Const2 := b10 +Const4 := b10 +Const8 := b11 +ConstNeg1 := b11 +RegisterDirect := b00 +Indexed := b01 +RegisterIndirect := b10 +IndirectAutoInc := b11 + +twoOpSourceMode: bit{2} := + NextWord | Const0 | Const1 | + Const2 | Const4 | Const8 | + ConstNeg1 | RegisterDirect | Indexed | + RegisterIndirect | IndirectAutoInc + +oneOpDestMode: bit{2} := twoOpSourceMode + +sourceReg: bit{4} +destReg: bit{4} := sourceReg + +noOp := b001:jumpCondition:pcOffset +oneOp := b000100:oneOpCode:byteOpFlag:oneOpDestMode:destReg +twoOp := twoOpCode:sourceReg:twoOpDestMode:byteOpFlag:twoOpSourceMode:destReg + +root := oneOp | twoOp | noOp |