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https://gitlab.os-k.eu/os-k-team/kvisc.git
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49 lines
752 B
Plaintext
49 lines
752 B
Plaintext
; The OS/K Team licenses this file to you under the MIT license.
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; See the LICENSE file in the project root for more information.
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PrintBootMsg:
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call print, .bootmsg
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ret
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.bootmsg = "Starting DOS...\n\n"
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;
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; Initialize TRAP handlers
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;
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InitSyscalls:
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call RFS.ActivateFrame, 1
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mov ax1, $rip
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mov ax2, DefaultTrapHandler
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call RFS.StoreReg
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mov ax0, 256
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mov ax1, 1
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call IDT.AddHandler
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ret
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InitExcepts:
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call RFS.ActivateFrame, 2
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mov ax1, $rip
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mov ax2, DefaultExceptionHandler
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call RFS.StoreReg
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call IDT.AddHandler, zero, 2
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SwitchToCMD:
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mov rax, Sys.Exit
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trap 0
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;
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; Main function
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;
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main:
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call PrintBootMsg
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call InitSyscalls
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call InitExcepts
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call SwitchToCMD
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ret
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