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trezor-firmware/legacy/firmware/header.S

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.syntax unified
#include "version.h"
.section .header, "a"
.type g_header, %object
.size g_header, .-g_header
g_header:
.byte 'T','R','Z','F' // magic
.word reset_handler // reset handler, replace later with : .word g_header_end - g_header // hdrlen
.word 0 // expiry
.word _codelen // codelen
.byte VERSION_MAJOR // vmajor
.byte VERSION_MINOR // vminor
.byte VERSION_PATCH // vpatch
.byte 0 // vbuild
.byte FIX_VERSION_MAJOR // fix_vmajor
.byte FIX_VERSION_MINOR // fix_vminor
.byte FIX_VERSION_PATCH // fix_vpatch
.byte 0 // fix_vbuild
.word HW_MODEL // type of the designated hardware
.byte HW_REVISION // revision of the designated hardware
.byte 0 // monotonic version placeholder - not used in legacy
. = . + 2 // reserved
. = . + 512 // hash1 ... hash16
. = . + 64 // sig1
. = . + 64 // sig2
. = . + 64 // sig3
.byte 0 // sigindex1
.byte 0 // sigindex2
.byte 0 // sigindex3
. = . + 220 // reserved
. = . + 65 // reserved
g_header_end: