> Does {Reiser's bitblt replacement] exist for the rest of us to study? A not-very-thorough search at tuhs turned up V9/jerq/src/lib/j/bitblt.c It appears to be a pre-Reiser bitblt, not what was asked for. But weighing in at over 800 lines of C, it vivifies the challenge that Reiser met in half the space. Doug