1 \documentclass{article}
4 \usepackage{amssymb,amsbsy}
7 \settowidth{\MyLength}{xmachine codex}
8 \newcommand{\MyBox}[1]{\makebox[\MyLength]{#1}}
9 \psmatrix[colsep=2,rowsep=0,nrot=:U]
11 [name=s0]\MyBox{unsafe source} & [name=s1]\MyBox{safe source} \\[0pt]
17 [name=b0]\MyBox{machine code} & [name=b1]\MyBox{safe bytecode} \\[0pt]
19 \psset{nodesep=5pt,arrows=->}
20 \ncline{s0}{b1}\bput{:U}{source-to-binary}