I think this counts as a regression bug. To test you can compile the code available at http://www.micahcarrick.com/v2/content/view/14/4/ using the suggested command line:
Compile: sdcc --debug -mpic14 -p16f627 toggle_led.c
Simulate: gpsim -pp16f627 -s toggle_led.cod toggle_led.asm
I get the same results as reported in: http://www.braindeadprojects.com/blog/rf/pic-simulation-using-gpsim/ (be it in Linux or Windows XP)
The same "solution" also worked in my case, which is downgrade to version 0.22.0.
GNU/Linux User 52247.
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