fixes, more trig, demo with floats

Cargo.lock

@@ -188,6 +188,7 @@ name = "crsn_arith"
 version = "0.1.0"
 dependencies = [
  "crsn",
+ "log",
  "num-traits",
  "rand 0.7.3",
 ]

crsn/src/asm/data/rd.rs

@@ -24,15 +24,18 @@ impl Rd {
         Rd(RdData::Immediate(val.to_bits()))
     }
 
-    /// Convert immediate read to float
+    /// Convert immediate integer to float
     pub fn imm_to_float(self) -> Rd {
-        match self {
+        self
-            Rd(RdData::Immediate(v)) => {
+
-                let signed : i64 = unsafe { std::mem::transmute(v) };
+        // FIXME
-                Rd::new_float(signed as f64)
+        // match self {
-            }
+        //     Rd(RdData::Immediate(v)) => {
-            other => other
+        //         let signed : i64 = unsafe { std::mem::transmute(v) };
-        }
+        //         Rd::new_float(signed as f64)
+        //     }
+        //     other => other
+        // }
     }
 
     pub fn is_imm_equal(self, other: Value) -> bool {

crsn/src/runtime/frame/status.rs

@@ -4,6 +4,7 @@ use std::fmt;
 use crate::asm::data::literal::{is_negative, is_positive, Value};
 use crate::asm::instr::Cond;
 use crate::asm::instr::cond::Flag;
+use num_traits::Zero;
 
 #[derive(Default, Clone, Debug)]
 pub struct StatusFlags {
@@ -80,9 +81,11 @@ impl StatusFlags {
 
     #[inline(always)]
     pub fn update_float(&mut self, val: f64) {
-        self.zero = val == 0.0;
+        self.invalid = val.is_nan();
-        self.positive = val > 0.0;
+        self.overflow = val.is_infinite();
-        self.negative = val < 0.0;
+        self.zero = val.is_zero();
+        self.positive = val.is_sign_positive();
+        self.negative = val.is_sign_negative();
     }
 
     #[inline(always)]

crsn_arith/Cargo.toml

@@ -10,3 +10,4 @@ edition = "2018"
 crsn = { path = "../crsn" }
 num-traits = "0.2.12"
 rand = "0.7.3"
+log = "0.4.11"

crsn_arith/src/defs.rs

@@ -28,6 +28,7 @@ pub enum ArithOp {
 
     Add { dst: Wr, a: Rd, b: Rd },
     Abs { dst: Wr, a: Rd },
+    Sgn { dst: Wr, a: Rd },
     Sub { dst: Wr, a: Rd, b: Rd },
     Mul { dst: Wr, a: Rd, b: Rd },
     Pow { dst: Wr, a: Rd, pow: Rd },
@@ -63,16 +64,26 @@ pub enum ArithOp {
     FloatDiv { dst: Wr, rem: Wr, a: Rd, div: Rd },
     FloatMod { dst: Wr, a: Rd, div: Rd },
     FloatAbs { dst: Wr, a: Rd },
+    FloatSgn { dst: Wr, a: Rd },
 
-    FloatSin { dst: Wr, f: Rd },
+    FloatSin { dst: Wr, a: Rd },
     FloatAsin { dst: Wr, a: Rd },
-    FloatCos { dst: Wr, f: Rd },
+    FloatCos { dst: Wr, a: Rd },
     FloatAcos { dst: Wr, a: Rd },
-    FloatTan { dst: Wr, f: Rd },
+    FloatTan { dst: Wr, a: Rd },
     FloatAtan { dst: Wr, a: Rd },
     FloatAtan2 { dst: Wr, y: Rd, x: Rd },
-    FloatCot { dst: Wr, f: Rd },
+    FloatCot { dst: Wr, a: Rd },
     FloatAcot { dst: Wr, a: Rd },
+
+    FloatHypSin { dst: Wr, a: Rd },
+    FloatHypAsin { dst: Wr, a: Rd },
+    FloatHypCos { dst: Wr, a: Rd },
+    FloatHypAcos { dst: Wr, a: Rd },
+    FloatHypTan { dst: Wr, a: Rd },
+    FloatHypAtan { dst: Wr, a: Rd },
+    FloatHypCot { dst: Wr, a: Rd },
+    FloatHypAcot { dst: Wr, a: Rd },
 }
 
 #[derive(Debug, Clone, Copy, Eq, PartialEq)]

crsn_arith/src/exec.rs

@@ -1,6 +1,6 @@
 use std::ops::Rem;
 
-use num_traits::PrimInt;
+use num_traits::{PrimInt};
 
 use crsn::asm::data::{Rd, Wr};
 use crsn::module::{EvalRes, OpTrait};
@@ -13,24 +13,25 @@ use crsn::utils::A;
 use crate::defs::{ArithOp, FloatToIntMode};
 use crsn::asm::instr::cond::Flag;
 use rand::Rng;
+use std::f64::consts::{PI, FRAC_PI_2};
 
 #[inline]
-fn f2u(f: f64) -> u64 {
+pub(crate) fn f2u(f: f64) -> u64 {
     unsafe { std::mem::transmute(f) }
 }
 
 #[inline]
-fn u2f(f: u64) -> f64 {
+pub(crate) fn u2f(f: u64) -> f64 {
     unsafe { std::mem::transmute(f) }
 }
 
 #[inline]
-fn i2u(f: i64) -> u64 {
+pub(crate) fn i2u(f: i64) -> u64 {
     unsafe { std::mem::transmute(f) }
 }
 
 #[inline]
-fn u2i(f: u64) -> i64 {
+pub(crate) fn u2i(f: u64) -> i64 {
     unsafe { std::mem::transmute(f) }
 }
 
@@ -174,14 +175,17 @@ impl OpTrait for ArithOp {
                     FloatToIntMode::Ceil => val.ceil(),
                     FloatToIntMode::Round => val.round(),
                 } as i64);
+                trace!("fti {} -> {}", val, res);
                 state.update_status(res);
                 state.write(dst, res)?;
             }
             ArithOp::IntToFloat { dst, a } => {
                 state.clear_status();
-                let val : f64 = u2i(state.read(a)?) as f64;
+                let i = u2i(state.read(a)?);
-                state.update_status_float(val);
+                let res: f64 = i as f64;
-                state.write(dst, f2u(val))?;
+                trace!("itf {} -> {}", i, res);
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
             }
             ArithOp::FloatTest { a } => {
                 state.clear_status();
@@ -419,8 +423,227 @@ impl OpTrait for ArithOp {
                 state.update_status(res);
                 state.write(dst, res)?;
             }
+            ArithOp::Abs { dst, a } => {
+                state.clear_status();
+                let x = u2i(state.read(a)?);
+                let res = i2u(x.abs());
+                state.update_status(res);
+                state.write(dst, res)?;
+            }
+            ArithOp::Sgn { dst, a } => {
+                state.clear_status();
+                let x = u2i(state.read(a)?);
+                let res = i2u(if x >= 0 { 0 } else { -1 });
+                state.update_status(res);
+                state.write(dst, res)?;
+            }
+            ArithOp::Pow { dst, a, pow } => {
+                state.clear_status();
+                let x = state.read(a)?;
+                let p = state.read(pow)?;
+                if p > u32::MAX as u64 {
+                    state.set_flag(Flag::Invalid, true);
+                } else {
+                    let res = x.pow(p as u32);
+                    state.update_status(res);
+                    state.write(dst, res)?;
+                }
+            }
+            ArithOp::FloatPow { dst, a, pow } => {
+                state.clear_status();
+                let x = u2f(state.read(a)?);
+                let p = u2f(state.read(pow)?);
+                let res = x.powf(p);
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatRoot { dst, a, root } => {
+                state.clear_status();
+                let x = u2f(state.read(a)?);
+                let p = u2f(state.read(root)?);
+                if p == 0f64 {
+                    state.set_flag(Flag::Invalid, true);
+                } else {
+                    let res = x.powf(1f64 / p);
+                    state.update_status_float(res);
+                    state.write(dst, f2u(res))?;
+                }
+            }
+            ArithOp::FloatHyp { dst, a, b } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let b = u2f(state.read(b)?);
+                let res = a.hypot(b);
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatAbs { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let res = a.abs();
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatSgn { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let res = a.signum();
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            /* Simple trig */
+            ArithOp::FloatSin { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let res = a.sin();
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatAsin { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let res = a.asin();
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatCos { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let res = a.cos();
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatAcos { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let res = a.acos();
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatTan { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let res = a.tan();
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatAtan { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let res = a.atan();
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatAtan2 { dst, y, x } => {
+                state.clear_status();
+                let a = u2f(state.read(y)?);
+                let b = u2f(state.read(x)?);
+                let res = a.atan2(b);
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatCot { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let tan = a.tan();
+                if tan == 0.0 {
+                    state.set_flag(Flag::Invalid, true);
+                } else {
+                    let res = 1f64 / tan;
+                    state.update_status_float(res);
+                    state.write(dst, f2u(res))?;
+                }
+            }
+            ArithOp::FloatAcot { dst, a } => {
+                state.clear_status();
+                let x = u2f(state.read(a)?);
+
+                // TODO verify
+                let res = if x > 1.0 {
+                    (1.0/x).atan()
+                } else if x < -1.0 {
+                    PI + (1.0/x).atan()
+                } else {
+                    FRAC_PI_2 - x.atan()
+                };
 
-            _ => unimplemented!() // TODO implement float trig etc
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            /* Hyperbolic trig */
+            ArithOp::FloatHypSin { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let res = a.sinh();
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatHypAsin { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let res = a.asinh();
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatHypCos { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let res = a.cosh();
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatHypAcos { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                if a > 1.0 {
+                    let res = a.acos();
+                    state.update_status_float(res);
+                    state.write(dst, f2u(res))?;
+                }
+            }
+            ArithOp::FloatHypTan { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let res = a.tanh();
+                state.update_status_float(res);
+                state.write(dst, f2u(res))?;
+            }
+            ArithOp::FloatHypAtan { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                if a > -1.0 && a < 1.0 {
+                    let res = a.atanh();
+                    state.update_status_float(res);
+                    state.write(dst, f2u(res))?;
+                } else {
+                    state.set_flag(Flag::Invalid, true);
+                }
+            }
+            ArithOp::FloatHypCot { dst, a } => {
+                state.clear_status();
+                let a = u2f(state.read(a)?);
+                let tan = a.tanh();
+                if tan == 0.0 {
+                    state.set_flag(Flag::Invalid, true);
+                } else {
+                    let res = 1f64 / tan;
+                    state.update_status_float(res);
+                    state.write(dst, f2u(res))?;
+                }
+            }
+            ArithOp::FloatHypAcot { dst, a } => {
+                state.clear_status();
+                let x = u2f(state.read(a)?);
+
+                // TODO verify
+                if x > 1.0 || x < -1.0 {
+                    let res = (1.0/x).atanh();
+                    state.update_status_float(res);
+                    state.write(dst, f2u(res))?;
+                } else {
+                    state.set_flag(Flag::Invalid, true);
+                };
+            }
         }
 
         Ok(eres)
@@ -457,33 +680,33 @@ impl OpTrait for ArithOp {
             ArithOp::Mod { dst, a, div } => to_sexp_2_or_3("mod", dst, a, div),
 
             // TODO render as float
-            ArithOp::FloatTest { a } => sexp::list(&[A("tstf"), A(a)]),
+            ArithOp::FloatTest { a } => sexp::list(&[A("ftst"), A(a)]),
-            ArithOp::FloatCompare { a, b } => sexp::list(&[A("cmpf"), A(a), A(b)]),
+            ArithOp::FloatCompare { a, b } => sexp::list(&[A("fcmp"), A(a), A(b)]),
-            ArithOp::FloatRangeTest { val, a: start, b: end } => sexp::list(&[A("rcmpf"), A(val), A(start), A(end)]),
+            ArithOp::FloatRangeTest { val, a: start, b: end } => sexp::list(&[A("frcmp"), A(val), A(start), A(end)]),
             ArithOp::FloatRng { dst, min, max } => {
-                if min.is_imm_equal(0f64.to_bits()) && max.is_imm_equal(f64::MAX.to_bits()) {
+                if min.is_imm_equal((0f64).to_bits()) && max.is_imm_equal(f64::MAX.to_bits()) {
-                    sexp::list(&[A("rngf"), A(dst)])
+                    sexp::list(&[A("frng"), A(dst)])
                 } else if min.is_imm_equal(0) {
-                    sexp::list(&[A("rngf"), A(dst), A(max)])
+                    sexp::list(&[A("frng"), A(dst), A(max)])
                 } else {
-                    sexp::list(&[A("rngf"), A(dst), A(min), A(max)])
+                    sexp::list(&[A("frng"), A(dst), A(min), A(max)])
                 }
             }
-            ArithOp::FloatAdd { dst, a, b } => to_sexp_2_or_3("addf", dst, a, b),
+            ArithOp::FloatAdd { dst, a, b } => to_sexp_2_or_3("fadd", dst, a, b),
-            ArithOp::FloatSub { dst, a, b } => to_sexp_2_or_3("subf", dst, a, b),
+            ArithOp::FloatSub { dst, a, b } => to_sexp_2_or_3("fsub", dst, a, b),
-            ArithOp::FloatMul { dst, a, b } => to_sexp_2_or_3("mulf", dst, a, b),
+            ArithOp::FloatMul { dst, a, b } => to_sexp_2_or_3("fmul", dst, a, b),
             ArithOp::FloatDiv { dst, rem, a, div } => {
                 if rem.is_discard() {
-                    to_sexp_2_or_3("divf", dst, a, div)
+                    to_sexp_2_or_3("fdiv", dst, a, div)
                 } else {
                     if &dst.as_rd() == a {
-                        sexp::list(&[A("divrf"), A(dst), A(rem), A(div)])
+                        sexp::list(&[A("fdivr"), A(dst), A(rem), A(div)])
                     } else {
-                        sexp::list(&[A("divrf"), A(dst), A(rem), A(a), A(div)])
+                        sexp::list(&[A("fdivr"), A(dst), A(rem), A(a), A(div)])
                     }
                 }
             }
-            ArithOp::FloatMod { dst, a, div } => to_sexp_2_or_3("modf", dst, a, div),
+            ArithOp::FloatMod { dst, a, div } => to_sexp_2_or_3("fmod", dst, a, div),
             ArithOp::IntToFloat { dst, a } => to_sexp_1_or_2("itf", dst, a),
             ArithOp::FloatToInt { dst, a, mode: FloatToIntMode::Floor } => to_sexp_1_or_2("ftif", dst, a),
             ArithOp::FloatToInt { dst, a, mode: FloatToIntMode::Round } => to_sexp_1_or_2("ftir", dst, a),
@@ -507,7 +730,31 @@ impl OpTrait for ArithOp {
             ArithOp::Clo { dst, src, mask: slice } => to_sexp_1_or_2(&format!("clo{}", slice), dst, src),
             ArithOp::SignExtend { dst, src, mask: slice } => to_sexp_1_or_2(&format!("se{}", slice), dst, src),
 
-            _ => unimplemented!() // FIXME
+            ArithOp::Abs { dst, a } => to_sexp_1_or_2("abs", dst, a),
+            ArithOp::Sgn { dst, a } => to_sexp_1_or_2("sgn", dst, a),
+            ArithOp::Pow { dst, a, pow } => to_sexp_2_or_3("pow", dst, a, pow),
+            ArithOp::FloatPow { dst, a, pow } => to_sexp_2_or_3("fpow", dst, a, pow),
+            ArithOp::FloatRoot { dst, a, root } => to_sexp_2_or_3("froot", dst, a, root),
+            ArithOp::FloatHyp { dst, a, b } => to_sexp_2_or_3("fhyp", dst, a, b),
+            ArithOp::FloatAbs { dst, a } => to_sexp_1_or_2("fabs", dst, a),
+            ArithOp::FloatSgn { dst, a } => to_sexp_1_or_2("fsgn", dst, a),
+            ArithOp::FloatSin { dst, a } => to_sexp_1_or_2("fsin", dst, a),
+            ArithOp::FloatAsin { dst, a } => to_sexp_1_or_2("fasin", dst, a),
+            ArithOp::FloatCos { dst, a } => to_sexp_1_or_2("fcos", dst, a),
+            ArithOp::FloatAcos { dst, a } => to_sexp_1_or_2("facos", dst, a),
+            ArithOp::FloatTan { dst, a } => to_sexp_1_or_2("ftan", dst, a),
+            ArithOp::FloatAtan { dst, a } => to_sexp_1_or_2("fatan", dst, a),
+            ArithOp::FloatAtan2 { dst, x, y } => to_sexp_2_or_3("fatan2", dst, x, y),
+            ArithOp::FloatCot { dst, a } => to_sexp_1_or_2("fcot", dst, a),
+            ArithOp::FloatAcot { dst, a } => to_sexp_1_or_2("facot", dst, a),
+            ArithOp::FloatHypSin { dst, a } => to_sexp_1_or_2("fsinh", dst, a),
+            ArithOp::FloatHypAsin { dst, a } => to_sexp_1_or_2("fasinh", dst, a),
+            ArithOp::FloatHypCos { dst, a } => to_sexp_1_or_2("fcosh", dst, a),
+            ArithOp::FloatHypAcos { dst, a } => to_sexp_1_or_2("facosh", dst, a),
+            ArithOp::FloatHypTan { dst, a } => to_sexp_1_or_2("ftanh", dst, a),
+            ArithOp::FloatHypAtan { dst, a } => to_sexp_1_or_2("fatanh", dst, a),
+            ArithOp::FloatHypCot { dst, a } => to_sexp_1_or_2("fcoth", dst, a),
+            ArithOp::FloatHypAcot { dst, a } => to_sexp_1_or_2("facoth", dst, a),
         }
     }
 }

crsn_arith/src/lib.rs

@@ -1,8 +1,13 @@
+#[macro_use]
+extern crate log;
+
 use crsn::asm::error::CrsnError;
 use crsn::asm::instr::op::OpKind;
 use crsn::asm::parse::arg_parser::TokenParser;
 use crsn::module::{CrsnExtension, ParseRes};
 use crsn::sexp::SourcePosition;
+use crsn::asm::data::literal::Value;
+use crate::exec::f2u;
 
 mod defs;
 mod parse;
@@ -25,4 +30,19 @@ impl CrsnExtension for ArithOps {
     fn parse_op<'a>(&self, pos: &SourcePosition, keyword: &str, args: TokenParser<'a>) -> Result<ParseRes<'a, OpKind>, CrsnError> {
         parse::parse(pos, keyword, args)
     }
+
+    /// Get value of an extension-provided constant.
+    /// This constant may be an object handle, or a constant value used as argument in some other instruction.
+    fn get_constant_value<'a>(&self, name: &str) -> Option<Value>
+    {
+        use std::f64::consts;
+        match name {
+            "PI" => Some(f2u(consts::PI)),
+            "PI_2" => Some(f2u(consts::FRAC_PI_2)),
+            "TAU" => Some(f2u(consts::TAU)),
+            "E" => Some(f2u(consts::E)),
+            // TODO more?...
+            _ => None
+        }
+    }
 }

crsn_arith/src/parse.rs

@@ -77,6 +77,11 @@ pub(crate) fn parse<'a>(op_pos: &SourcePosition, keyword: &str, mut args: TokenP
             ArithOp::Abs { dst, a }
         }
 
+        "sgn" => {
+            let (dst, a) = args.parse_wr_rd()?;
+            ArithOp::Sgn { dst, a }
+        }
+
         "sub" => {
             let (dst, a, b) = args.parse_wr_rd_rd()?;
             ArithOp::Sub { dst, a, b }
@@ -199,7 +204,7 @@ pub(crate) fn parse<'a>(op_pos: &SourcePosition, keyword: &str, mut args: TokenP
             ArithOp::Rbit { dst, src }
         }
 
-        "cmpf" => {
+        "fcmp" => {
             let parsed = ArithOp::FloatCompare {
                 a: args.next_rd()?.imm_to_float(),
                 b: args.next_rd()?.imm_to_float(),
@@ -305,7 +310,7 @@ pub(crate) fn parse<'a>(op_pos: &SourcePosition, keyword: &str, mut args: TokenP
             ArithOp::FloatHyp {
                 dst,
                 a: a.imm_to_float(),
-                b: a.imm_to_float(),
+                b: b.imm_to_float(),
             }
         }
 
@@ -392,12 +397,17 @@ pub(crate) fn parse<'a>(op_pos: &SourcePosition, keyword: &str, mut args: TokenP
 
         "fabs" => {
             let (dst, a) = args.parse_wr_rd()?;
-            ArithOp::FloatAbs { dst, a: f.imm_to_float() }
+            ArithOp::FloatAbs { dst, a: a.imm_to_float() }
+        }
+
+        "fsgn" => {
+            let (dst, a) = args.parse_wr_rd()?;
+            ArithOp::FloatSgn { dst, a: a.imm_to_float() }
         }
 
         "fsin" => {
-            let (dst, f) = args.parse_wr_rd()?;
+            let (dst, a) = args.parse_wr_rd()?;
-            ArithOp::FloatSin { dst, f: f.imm_to_float() }
+            ArithOp::FloatSin { dst, a: a.imm_to_float() }
         }
 
         "fasin" => {
@@ -406,8 +416,8 @@ pub(crate) fn parse<'a>(op_pos: &SourcePosition, keyword: &str, mut args: TokenP
         }
 
         "fcos" => {
-            let (dst, f) = args.parse_wr_rd()?;
+            let (dst, a) = args.parse_wr_rd()?;
-            ArithOp::FloatCos { dst, f: f.imm_to_float() }
+            ArithOp::FloatCos { dst, a: a.imm_to_float() }
         }
 
         "facos" => {
@@ -416,8 +426,8 @@ pub(crate) fn parse<'a>(op_pos: &SourcePosition, keyword: &str, mut args: TokenP
         }
 
         "ftan" => {
-            let (dst, f) = args.parse_wr_rd()?;
+            let (dst, a) = args.parse_wr_rd()?;
-            ArithOp::FloatTan { dst, f: f.imm_to_float() }
+            ArithOp::FloatTan { dst, a: a.imm_to_float() }
         }
 
         "fatan" => {
@@ -435,8 +445,8 @@ pub(crate) fn parse<'a>(op_pos: &SourcePosition, keyword: &str, mut args: TokenP
         }
 
         "fcot" => {
-            let (dst, f) = args.parse_wr_rd()?;
+            let (dst, a) = args.parse_wr_rd()?;
-            ArithOp::FloatCot { dst, f: f.imm_to_float() }
+            ArithOp::FloatCot { dst, a: a.imm_to_float() }
         }
 
         "facot" => {
@@ -444,6 +454,47 @@ pub(crate) fn parse<'a>(op_pos: &SourcePosition, keyword: &str, mut args: TokenP
             ArithOp::FloatAcot { dst, a: a.imm_to_float() }
         }
 
+        /* hyperbolic */
+        "fsinh" => {
+            let (dst, a) = args.parse_wr_rd()?;
+            ArithOp::FloatHypSin { dst, a: a.imm_to_float() }
+        }
+
+        "fasinh" => {
+            let (dst, a) = args.parse_wr_rd()?;
+            ArithOp::FloatHypAsin { dst, a: a.imm_to_float() }
+        }
+
+        "fcosh" => {
+            let (dst, a) = args.parse_wr_rd()?;
+            ArithOp::FloatHypCos { dst, a: a.imm_to_float() }
+        }
+
+        "facosh" => {
+            let (dst, a) = args.parse_wr_rd()?;
+            ArithOp::FloatHypAcos { dst, a: a.imm_to_float() }
+        }
+
+        "ftanh" => {
+            let (dst, a) = args.parse_wr_rd()?;
+            ArithOp::FloatHypTan { dst, a: a.imm_to_float() }
+        }
+
+        "fatanh" => {
+            let (dst, a) = args.parse_wr_rd()?;
+            ArithOp::FloatHypAtan { dst, a: a.imm_to_float() }
+        }
+
+        "fcoth" => {
+            let (dst, a) = args.parse_wr_rd()?;
+            ArithOp::FloatHypCot { dst, a: a.imm_to_float() }
+        }
+
+        "facoth" => {
+            let (dst, a) = args.parse_wr_rd()?;
+            ArithOp::FloatHypAcot { dst, a: a.imm_to_float() }
+        }
+
         other => {
             if let Some((dst, src, mask)) = args.parse_masked_wr_rd(other, "clz")? {
                 if !dst.disp_equals(src) && mask.dst_pos != 0 {

examples/screen_trig.csn

@@ -0,0 +1,34 @@
+(
+    ; mouse over the image to draw circles
+    (sc-init 800 600)
+    (sc-opt SCREEN_AUTO_BLIT 0)
+
+    (:loop)
+        (sc-poll)
+        (sc-mouse r4 r5 (ov? (j :loop)))
+        (itf r4)
+        (itf r5)
+
+        (ld r0 0.0)
+        (def RADIUS 50.0)
+        (:circle)
+            (fsin r1 r0)
+            (fcos r2 r0)
+
+            (fmul r1 RADIUS)
+            (fmul r2 RADIUS)
+
+            (fadd r1 r4)
+            (fadd r2 r5)
+
+            (fti r1)
+            (fti r2)
+            (sc-px r1 r2 #66ff00)
+            (fadd r0 0.1) ; make lower for a smoother circle
+            (fcmp r0 TAU
+                (ge?
+                    (sc-blit)
+                    (j :loop)))
+        (j :circle)
+    (j :loop)
+)