diff --git a/data/languages/xtensaTodo.sinc b/data/languages/xtensaTodo.sinc
index 5c7a29c..0e6060d 100644
--- a/data/languages/xtensaTodo.sinc
+++ b/data/languages/xtensaTodo.sinc
@@ -52,3 +52,27 @@
 :mula.aa.* as, at is op2 = 0b0001 & u2_18.19 = 0b01 & ar = 0 & as & at & op0 = 0b0100 unimpl
 
 # FIXME: Add remaining MUL.* opcodes.
+
+
+# TODO this produces correct pcode, tho it would be nicer to display the float in disasm as well
+# +0.0 +1.0 +2.0 +0.5
+const.s_imm: tmp is as=0 [ tmp = 0x00000000; ] { export *[const]:4 tmp; }
+const.s_imm: tmp is as=1 [ tmp = 0x3F800000; ] { export *[const]:4 tmp; }
+const.s_imm: tmp is as=2 [ tmp = 0x40000000; ] { export *[const]:4 tmp; }
+const.s_imm: tmp is as=3 [ tmp = 0x3F000000; ] { export *[const]:4 tmp; }
+
+:const.s fr, const.s_imm is op2=0b1111 & op1=0b1010 & fr & const.s_imm & at=0b0011 & op0=0 {
+    fr = float2float(const.s_imm);
+}
+
+
+# Stub out some insns which mainly appear in boilerplate library functions...
+:div0.s fr, fs is op2=0b1111 & op1=0b1010 & fr & fs & at=0b0111 & op0=0 unimpl
+:sqrt0.s fr, fs is op2=0b1111 & op1=0b1010 & fr & fs & at=0b1001 & op0=0 unimpl
+:nexp01.s fr, fs is op2=0b1111 & op1=0b1010 & fr & fs & at=0b1011 & op0=0 unimpl
+:mksadj.s fr, fs is op2=0b1111 & op1=0b1010 & fr & fs & at=0b1100 & op0=0 unimpl
+:mkdadj.s fr, fs is op2=0b1111 & op1=0b1010 & fr & fs & at=0b1101 & op0=0 unimpl
+:addexp.s fr, fs is op2=0b1111 & op1=0b1010 & fr & fs & at=0b1110 & op0=0 unimpl
+:addexpm.s fr, fs is op2=0b1111 & op1=0b1010 & fr & fs & at=0b1111 & op0=0 unimpl
+:maddn.s fr, fs, ft is op2=0b0110 & op1=0b1010 & fr & fs & ft & op0=0 unimpl
+:divn.s fr, fs, ft is op2=0b0111 & op1=0b1010 & fr & fs & ft & op0=0 unimpl