ref: 4e712807d7a2add9f93a265b25638e6f1ca32ff3
dir: /test/asm/fixed-point-precision.asm/
f1 = 3.1
f2 = 5.2
pm = MUL(f1, f2)
pr = 16.12
println "`3.1`: {9.6f:f1} -> ${08x:f1}"
println "`5.2`: {9.6f:f2} -> ${08x:f2}"
println "`MUL`: {9.6f:pm} -> ${08x:pm}"
println "`16.12`: {9.6f:pr} -> ${08x:pr}"
fl = 6.283185
println "`6.283185`: {.6f:fl} -> ${08x:fl}"
fr = MUL(20.0, 0.32)
println "32% of 20 = {f:fr} (~{.2f:fr}) (~~{.0f:fr})"
q8 = 1.25q8
q16 = 1.25Q16
q24 = 1.25q.24
println "Q8 ${x:q8} Q16 ${x:q16} Q24 ${x:q24}"
qerr = 1.25q32
println qerr