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-rw-r--r--src/lib.rs265
1 files changed, 265 insertions, 0 deletions
diff --git a/src/lib.rs b/src/lib.rs
index 98b6f17..d3220a7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -450,6 +450,23 @@ pub enum Opcode {
/// predicate register used for branch condition is part of normal predication bits
CmpGtuJump,
+ /// jump conditioned on a register being equal to zero
+ ///
+ /// source 1 is the register used for jump conditioning, source 2 is the relative branch
+ JumpRegZ,
+ /// jump conditioned on a register being nonzero
+ ///
+ /// source 1 is the register used for jump conditioning, source 2 is the relative branch
+ JumpRegNz,
+ /// jump conditioned on a register being greater than or equal to zero
+ ///
+ /// source 1 is the register used for jump conditioning, source 2 is the relative branch
+ JumpRegGez,
+ /// jump conditioned on a register being less than or equal to zero
+ ///
+ /// source 1 is the register used for jump conditioning, source 2 is the relative branch
+ JumpRegLez,
+
Add,
And,
And_nRR,
@@ -546,6 +563,18 @@ pub enum Opcode {
Pmemcpy,
Linecpy,
+
+ Loop0,
+ Loop1,
+ Sp1Loop0,
+ Sp2Loop0,
+ Sp3Loop0,
+ Trace,
+ Diag,
+ Diag0,
+ Diag1,
+
+ Movlen,
}
impl Opcode {
@@ -2032,6 +2061,123 @@ fn decode_instruction<
let opbits = (inst >> 21) & 0b1111111;
match opbits {
+ 0b0000000 => {
+ let sssss = reg_b16(inst);
+ let iiiii = reg_b8(inst);
+ let ii = ((inst >> 3) & 0b11) as u8;
+ let i7 = (iiiii << 2) | ii;
+ let rel = ((i7 << 1) as i8 as i32) << 1;
+
+ handler.on_opcode_decoded(Opcode::Loop0)?;
+ handler.on_source_decoded(Operand::PCRel32 { rel })?;
+ handler.on_source_decoded(Operand::gpr(sssss))?;
+ }
+ 0b0000001 => {
+ let sssss = reg_b16(inst);
+ let iiiii = reg_b8(inst);
+ let ii = ((inst >> 3) & 0b11) as u8;
+ let i7 = (iiiii << 2) | ii;
+ let rel = ((i7 << 1) as i8 as i32) << 1;
+
+ handler.on_opcode_decoded(Opcode::Loop1)?;
+ handler.on_source_decoded(Operand::PCRel32 { rel })?;
+ handler.on_source_decoded(Operand::gpr(sssss))?;
+ }
+ 0b0000010 | 0b0000011 => {
+ return Err(DecodeError::InvalidOpcode);
+ }
+ 0b0000101 => {
+ let sssss = reg_b16(inst);
+ let iiiii = reg_b8(inst);
+ let ii = ((inst >> 3) & 0b11) as u8;
+ let i7 = (iiiii << 2) | ii;
+ let rel = ((i7 << 1) as i8 as i32) << 1;
+
+ handler.on_opcode_decoded(Opcode::Sp1Loop0)?;
+ handler.on_source_decoded(Operand::PCRel32 { rel })?;
+ handler.on_source_decoded(Operand::gpr(sssss))?;
+ handler.on_dest_decoded(Operand::pred(3))?;
+ }
+ 0b0000110 => {
+ let sssss = reg_b16(inst);
+ let iiiii = reg_b8(inst);
+ let ii = ((inst >> 3) & 0b11) as u8;
+ let i7 = (iiiii << 2) | ii;
+ let rel = ((i7 << 1) as i8 as i32) << 1;
+
+ handler.on_opcode_decoded(Opcode::Sp2Loop0)?;
+ handler.on_source_decoded(Operand::PCRel32 { rel })?;
+ handler.on_source_decoded(Operand::gpr(sssss))?;
+ handler.on_dest_decoded(Operand::pred(3))?;
+ }
+ 0b0000111 => {
+ let sssss = reg_b16(inst);
+ let iiiii = reg_b8(inst);
+ let ii = ((inst >> 3) & 0b11) as u8;
+ let i7 = (iiiii << 2) | ii;
+ let rel = ((i7 << 1) as i8 as i32) << 1;
+
+ handler.on_opcode_decoded(Opcode::Sp3Loop0)?;
+ handler.on_source_decoded(Operand::PCRel32 { rel })?;
+ handler.on_source_decoded(Operand::gpr(sssss))?;
+ handler.on_dest_decoded(Operand::pred(3))?;
+ }
+ 0b0001000 | 0b0001001 => {
+ let sssss = reg_b16(inst);
+ let i11 = (inst >> 1) & 0b111_1111_1111;
+ let i_mid = (inst >> 13) & 1;
+ let i_hi = (inst >> 21) & 1;
+ let i13 = i11 | (i_mid << 11) | (i_hi << 12);
+ let rel = (i13 << 3) as i16 as i32 >> 1;
+
+ let taken = (inst >> 12) & 1 == 1;
+ handler.branch_hint(taken)?;
+ handler.on_opcode_decoded(Opcode::JumpRegNz)?;
+ handler.on_source_decoded(Operand::gpr(sssss))?;
+ handler.on_dest_decoded(Operand::PCRel32 { rel })?;
+ }
+ 0b0001010 | 0b0001011 => {
+ let sssss = reg_b16(inst);
+ let i11 = (inst >> 1) & 0b111_1111_1111;
+ let i_mid = (inst >> 13) & 1;
+ let i_hi = (inst >> 21) & 1;
+ let i13 = i11 | (i_mid << 11) | (i_hi << 12);
+ let rel = (i13 << 3) as i16 as i32 >> 1;
+
+ let taken = (inst >> 12) & 1 == 1;
+ handler.branch_hint(taken)?;
+ handler.on_opcode_decoded(Opcode::JumpRegGez)?;
+ handler.on_source_decoded(Operand::gpr(sssss))?;
+ handler.on_dest_decoded(Operand::PCRel32 { rel })?;
+ }
+ 0b0001100 | 0b0001101 => {
+ let sssss = reg_b16(inst);
+ let i11 = (inst >> 1) & 0b111_1111_1111;
+ let i_mid = (inst >> 13) & 1;
+ let i_hi = (inst >> 21) & 1;
+ let i13 = i11 | (i_mid << 11) | (i_hi << 12);
+ let rel = (i13 << 3) as i16 as i32 >> 1;
+
+ let taken = (inst >> 12) & 1 == 1;
+ handler.branch_hint(taken)?;
+ handler.on_opcode_decoded(Opcode::JumpRegZ)?;
+ handler.on_source_decoded(Operand::gpr(sssss))?;
+ handler.on_dest_decoded(Operand::PCRel32 { rel })?;
+ }
+ 0b0001110 | 0b0001111 => {
+ let sssss = reg_b16(inst);
+ let i11 = (inst >> 1) & 0b111_1111_1111;
+ let i_mid = (inst >> 13) & 1;
+ let i_hi = (inst >> 21) & 1;
+ let i13 = i11 | (i_mid << 11) | (i_hi << 12);
+ let rel = (i13 << 3) as i16 as i32 >> 1;
+
+ let taken = (inst >> 12) & 1 == 1;
+ handler.branch_hint(taken)?;
+ handler.on_opcode_decoded(Opcode::JumpRegLez)?;
+ handler.on_source_decoded(Operand::gpr(sssss))?;
+ handler.on_dest_decoded(Operand::PCRel32 { rel })?;
+ }
0b0010001 => {
let sssss = reg_b16(inst);
let ddddd = reg_b0(inst);
@@ -2039,6 +2185,32 @@ fn decode_instruction<
handler.on_source_decoded(Operand::gpr(sssss))?;
handler.on_dest_decoded(Operand::cr(ddddd))?;
}
+ 0b0010010 => {
+ let opc = (inst >> 5) & 0b111;
+ let sssss = reg_b16(inst);
+ let ttttt = reg_b8(inst);
+ match opc {
+ 0b000 => {
+ handler.on_opcode_decoded(Opcode::Trace)?;
+ handler.on_source_decoded(Operand::gpr(sssss))?;
+ },
+ 0b001 => {
+ handler.on_opcode_decoded(Opcode::Diag)?;
+ handler.on_source_decoded(Operand::gpr(sssss))?;
+ },
+ 0b010 => {
+ handler.on_opcode_decoded(Opcode::Diag0)?;
+ handler.on_source_decoded(Operand::gprpair(sssss)?)?;
+ handler.on_source_decoded(Operand::gprpair(ttttt)?)?;
+ },
+ 0b011 => {
+ handler.on_opcode_decoded(Opcode::Diag1)?;
+ handler.on_source_decoded(Operand::gprpair(sssss)?)?;
+ handler.on_source_decoded(Operand::gprpair(ttttt)?)?;
+ },
+ _ => { return Err(DecodeError::InvalidOpcode); }
+ };
+ }
0b0111000 => {
// not in V73! store to supervisor register?
let sssss = reg_b16(inst);
@@ -2047,6 +2219,11 @@ fn decode_instruction<
handler.on_dest_decoded(Operand::sr(ddddddd as u8))?;
handler.on_source_decoded(Operand::gpr(sssss))?;
}
+ // TODO: 1001000 loop0 goes here
+ 0b1100001 => {
+ opcode_check!((inst >> 5) & 0b111 == 0);
+ handler.on_opcode_decoded(Opcode::Barrier)?;
+ }
0b1101000 => {
// not in V73! store to supervisor register?
let sssss = reg_b16(inst);
@@ -2087,6 +2264,84 @@ fn decode_instruction<
handler.on_source_decoded(Operand::crpair(sssss)?)?;
handler.on_dest_decoded(Operand::gprpair(ddddd)?)?;
}
+ 0b1001000 => {
+ let lllll = reg_b16(inst) as u32;
+ let l_mid = (inst >> 5) & 0b111;
+ let l_low = inst & 0b11;
+ let l10 = l_low | (l_mid << 2) | (lllll << 5);
+
+ let iiiii = reg_b8(inst);
+ let ii = ((inst >> 3) & 0b11) as u8;
+ let i7 = (iiiii << 2) | ii;
+ let rel = ((i7 << 1) as i8 as i32) << 1;
+
+ handler.on_opcode_decoded(Opcode::Loop0)?;
+ handler.on_source_decoded(Operand::PCRel32 { rel })?;
+ handler.on_source_decoded(Operand::ImmU16 { imm: l10 as u16 })?;
+ }
+ 0b1001001 => {
+ let lllll = reg_b16(inst) as u32;
+ let l_mid = (inst >> 5) & 0b111;
+ let l_low = inst & 0b11;
+ let l10 = l_low | (l_mid << 2) | (lllll << 5);
+
+ let iiiii = reg_b8(inst);
+ let ii = ((inst >> 3) & 0b11) as u8;
+ let i7 = (iiiii << 2) | ii;
+ let rel = ((i7 << 1) as i8 as i32) << 1;
+
+ handler.on_opcode_decoded(Opcode::Loop1)?;
+ handler.on_source_decoded(Operand::PCRel32 { rel })?;
+ handler.on_source_decoded(Operand::ImmU16 { imm: l10 as u16 })?;
+ }
+ 0b1001101 => {
+ let lllll = reg_b16(inst) as u32;
+ let l_mid = (inst >> 5) & 0b111;
+ let l_low = inst & 0b11;
+ let l10 = l_low | (l_mid << 2) | (lllll << 5);
+
+ let iiiii = reg_b8(inst);
+ let ii = ((inst >> 3) & 0b11) as u8;
+ let i7 = (iiiii << 2) | ii;
+ let rel = ((i7 << 1) as i8 as i32) << 1;
+
+ handler.on_opcode_decoded(Opcode::Sp1Loop0)?;
+ handler.on_source_decoded(Operand::PCRel32 { rel })?;
+ handler.on_source_decoded(Operand::ImmU16 { imm: l10 as u16 })?;
+ handler.on_dest_decoded(Operand::pred(3))?;
+ }
+ 0b1001110 => {
+ let lllll = reg_b16(inst) as u32;
+ let l_mid = (inst >> 5) & 0b111;
+ let l_low = inst & 0b11;
+ let l10 = l_low | (l_mid << 2) | (lllll << 5);
+
+ let iiiii = reg_b8(inst);
+ let ii = ((inst >> 3) & 0b11) as u8;
+ let i7 = (iiiii << 2) | ii;
+ let rel = ((i7 << 1) as i8 as i32) << 1;
+
+ handler.on_opcode_decoded(Opcode::Sp2Loop0)?;
+ handler.on_source_decoded(Operand::PCRel32 { rel })?;
+ handler.on_source_decoded(Operand::ImmU16 { imm: l10 as u16 })?;
+ handler.on_dest_decoded(Operand::pred(3))?;
+ }
+ 0b1001111 => {
+ let lllll = reg_b16(inst) as u32;
+ let l_mid = (inst >> 5) & 0b111;
+ let l_low = inst & 0b11;
+ let l10 = l_low | (l_mid << 2) | (lllll << 5);
+
+ let iiiii = reg_b8(inst);
+ let ii = ((inst >> 3) & 0b11) as u8;
+ let i7 = (iiiii << 2) | ii;
+ let rel = ((i7 << 1) as i8 as i32) << 1;
+
+ handler.on_opcode_decoded(Opcode::Sp3Loop0)?;
+ handler.on_source_decoded(Operand::PCRel32 { rel })?;
+ handler.on_source_decoded(Operand::ImmU16 { imm: l10 as u16 })?;
+ handler.on_dest_decoded(Operand::pred(3))?;
+ }
0b1010000 => {
let sssss = reg_b16(inst);
let ddddd = reg_b0(inst);
@@ -2153,6 +2408,16 @@ fn decode_instruction<
handler.on_source_decoded(Operand::gprpair(sssss)?)?;
handler.on_dest_decoded(Operand::gpr(ddddd))?;
}
+ 0b1111111 => {
+ opcode_check!((inst >> 5) & 0b100000111 == 0b010);
+ let ddddd = reg_b0(inst);
+ let sssss = reg_b8(inst);
+ let ttttt = reg_b16(inst);
+ handler.on_opcode_decoded(Opcode::Movlen)?;
+ handler.on_dest_decoded(Operand::gpr(ddddd))?;
+ handler.on_source_decoded(Operand::gpr(sssss))?;
+ handler.on_source_decoded(Operand::gprpair(ttttt)?)?;
+ }
_ => {
eprintln!("!!! TODO: {:07b} !!!", opbits);
}
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