psxbios.c: Cleanup buopen()
authorretro-wertz <retro-wertz@users.noreply.github.com>
Sat, 3 Aug 2019 09:53:45 +0000 (17:53 +0800)
committerretro-wertz <retro-wertz@users.noreply.github.com>
Sat, 3 Aug 2019 12:16:32 +0000 (20:16 +0800)
- This just silences some [-Wpointer-sign] warning from last PR


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