Add missing primitive implementation for the plain interpreter.
digraph OSDependencies {
rankdir=LR;
size="7.5,10";
bootasm;
driverframework -> langdesign;
driverframework -> bootasm;
idedriver -> driverframework;
kbdriver -> driverframework;
mousedriver -> driverframework;
ethdriver -> driverframework;
tcpip -> ethdriver;
tcpip -> bitsyntax;
vesamodeswitch -> langdesign;
fontdata -> langdesign;
bitblt;
cairolike;
objmem;
gc -> objmem;
gui -> cairolike;
gui -> bitblt;
gui -> fontdata
gui -> fontmetrics;
langdesign -> patternmatcher;
langdesign -> bitsyntax;
langdesign -> weakpointerhierarchy;
patternmatcher;
bitsyntax;
compiler -> langdesign;
interpreter -> langdesign;
imageloader -> objmem
imageloader -> langdesign;
imageformat -> objmem;
imagesaver -> objmem
imagesaver -> langdesign;
gitlike -> sha1;
gitlike -> blockstorage;
blockstorage -> idedriver;
sha1;
weakpointerhierarchy
fontmetrics;
paragraphlayout -> gui;
paragrapheditor -> paragraphlayout;
listwidget -> gui;
buttonwidget -> gui;
become -> objmem;
debugger -> objmem;
debugger -> interpreter;
emergencyevaluator -> objmem;
emergencyevaluator -> langdesign;
fat32 -> idedriver;
acpi -> driverframework;
smtpclient -> tcpip;
httpclient -> tcpip;
imapclient -> tcpip;
assembler -> bitsyntax;
disassembler -> bitsyntax;
dynamiclinker -> objmem;
dependencymanager -> objmem;
tableeditor -> gui;
}