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id = 629
title = "Trying to use EGA or VGA functions from QBASIC doesn't work"
state = "opened"
created_at = "2021-09-19T22:27:34.059Z"
closed_at = "n/a"
labels = ["device:graphics", "target: i386"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/629"
host-os = "debian bullseye"
host-arch = "x64"
qemu-version = "QEMU emulator version 6.1.0"
guest-os = "MS-DOS"
guest-arch = "x86_16"
description = """QBASIC can't start any graphics mode beyond CGA
Some other programs that default to EGA crash trying to start graphics; none that I've tried can start EGA at all; believe to be the same bug; will file separately if it turns out to not be"""
reproduce = """1. Boot
2. Start QBASIC
3. Run a program consisting of only "SCREEN 12" for VGA or "SCREEN 9" for EGA
4. Get error message "Illegal Function Call""""
additional = "n/a"
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