annotate docs/spec/fv4.tikz @ 636:9cda689dcc20

Use an appropriate data copier for the platform's bit width

Dispatch on sb-vm:n-word-bits, though I think sbcl itself should
probably define a system-area-double-float-copy bit-bash function.

This also fixes a thinko, where only half of the times data was being
copied, even on 64-bit platforms.  Sheesh.  Fixes #32

\foreach \y/\col in {0/4,0.2/89,0.4/96,0.6/58,0.8/25} {
  \fill[black!\col!white] ($(-0.1,0)+(0,\y)$) rectangle ($(0.1,0.2)+(0,\y)$);
}