98c7cb3be7
Neat when doing ResetVector coding. Incompatible with TDX and SEV, therefore not enabled by default. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Tom Lendacky <thomas.lendacky@amd.com> Acked-by: Erdem Aktas <erdemaktas@google.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Message-Id: <20240129122929.349726-1-kraxel@redhat.com> [lersek@redhat.com: replace "SEV" with "SEV-ES/SEV-SNP" in comment]
37 lines
937 B
NASM
37 lines
937 B
NASM
;------------------------------------------------------------------------------
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; @file
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; qemu debug console support macros (based on serial port macros)
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;
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; Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.<BR>
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; Copyright (c) 2024, Red Hat, Inc.<BR>
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; SPDX-License-Identifier: BSD-2-Clause-Patent
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;
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;------------------------------------------------------------------------------
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%macro debugShowCharacter 1
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mov dx, 0x402
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mov al, %1
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out dx, al
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%endmacro
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%macro debugShowHexDigit 1
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%if (%1 < 0xa)
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debugShowCharacter BYTE ('0' + (%1))
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%else
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debugShowCharacter BYTE ('a' + ((%1) - 0xa))
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%endif
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%endmacro
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%macro debugShowPostCode 1
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debugShowHexDigit (((%1) >> 4) & 0xf)
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debugShowHexDigit ((%1) & 0xf)
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debugShowCharacter `\r`
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debugShowCharacter `\n`
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%endmacro
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BITS 16
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%macro debugInitialize 0
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; not required
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%endmacro
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