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https://gitlab.os-k.eu/os-k-team/kvisc.git
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44 lines
669 B
Plaintext
44 lines
669 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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mov rcx, STRLEN_MAX
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mov rdx, .bootmsg
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prns.rep.nz rdx
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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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mov ax0, 1
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.prepare_next:
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call RFS.ActivateFrame
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mov ax1, $rip
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mov ax2, trap0_handler
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call RFS.StoreReg
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mov ax1, ax0
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add ax0, 255 # TRAP no. (ax0 - 1)
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call IDT.AddHandler
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ret
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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 SwitchToCMD
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ret
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