2019-07-09 19:51:03 +02:00
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; 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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TrapHandlers.prolog:
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2019-07-17 22:25:50 +02:00
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mov rbp, rsp
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sub rsp, rsp, 24
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2019-07-09 20:02:36 +02:00
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mov q[rbp-8], r11
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mov q[rbp-16], r12
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mov q[rbp-24], r13
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2019-07-10 20:11:35 +02:00
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mov rdx, cr2
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2019-07-09 19:51:03 +02:00
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2019-07-10 17:17:45 +02:00
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; nx0 = caller's cr2
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mov ax0, r12
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mov ax1, $cr2
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iocall CPUDEV, RFS.LoadReg.slot
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2019-07-10 20:11:35 +02:00
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2019-07-10 17:17:45 +02:00
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mov nx0, cr2
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2019-07-10 20:11:35 +02:00
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mov cr2, rdx
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2019-07-17 22:25:50 +02:00
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mov rdx, zero
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2019-07-10 17:17:45 +02:00
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2019-07-10 20:11:35 +02:00
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jmp rcx
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2019-07-09 19:51:03 +02:00
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TrapHandlers.epilog:
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2019-07-09 20:02:36 +02:00
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mov r13, q[rbp-24]
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2019-07-09 20:16:35 +02:00
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mov r12, q[rbp-16]
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mov r11, q[rbp-8]
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2019-07-09 19:51:03 +02:00
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2019-07-10 12:26:15 +02:00
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; TRAP return values: RAX-RDX
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mov ax0, r12
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mov ax1, $rax
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mov ax2, rax
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call RFS.StoreReg
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2019-07-10 12:28:20 +02:00
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2019-07-10 12:26:15 +02:00
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mov ax1, $rdx
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mov ax2, rdx
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call RFS.StoreReg
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2019-07-09 19:51:03 +02:00
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mov ax0, r11
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call IDT.DoneHandling
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2019-07-10 20:11:35 +02:00
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2019-07-09 19:51:03 +02:00
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iret
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