; The OS/K Team licenses this file to you under the MIT license.
; See the LICENSE file in the project root for more information.

ScreenOfDeath:
    push nx0
    mov nx0, ax0

    prn 10
    prn PRN_CLEAR
    prn PRN_FLUSH

    push ax1
    call printf, .scr1
    pop

    bnz nx2, .not_con
    push .scr2_con
    jmp .do_print

.not_con:
    ; rframes #2-#3-#4 belong to kernel
    blt 4, nx2, .not_krn
    push .scr2_krn
    jmp .do_print

.not_krn:
    push .scr2_usr

.do_print:
    push nx2, nx0
    call printf, .scr2
    add esp, 24

    call dumprf, nx2
    prn 10

    call print, .scr3

.loop:
    pause
    pause

    scan eax
    jraxz .loop

    beq eax, 0x0A, DefaultTrapHandler.handle_Exit
    beq eax, 0x1B, DefaultTrapHandler.handle_Shutdown

    jmp .loop

    crash

.scr1 = "-------- Unhandled EXCEPTION, TRAP/SYSCALL or INTERRUPT (code %d)\n"
.scr2 = "Description: %s\nFrame: %d (%s)\n\n"
.scr3 = "Press:\n    ENTER to procede to COMMAND.COM\n    ESCAPE to shutdown machine\n\n"

.scr2_con = "dedicated command.com frame"
.scr2_usr = "userspace application frame"
.scr2_krn = "exception/interrupt handler"