mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-25 07:48:10 +00:00
31 lines
1.0 KiB
Plaintext
31 lines
1.0 KiB
Plaintext
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#pragma base_address 0x800FF00
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#include "t1_firmware.pat"
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u32 V1_HEADER_BASE = base();
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u32 V2_HEADER_BASE = base() + 0x100;
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u32 VTOR = V2_HEADER_BASE + 0x400;
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#define FW_MAGIC_OLD "TRZR"
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#define FW_MAGIC_NEW "TRZF"
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ImageHeader_v1 header_v1 @ V1_HEADER_BASE;
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ImageHeader_v2 header_v2 @ V2_HEADER_BASE;
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VectorTable vector_table @ VTOR;
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// this could be out of bounds, just warn if VTOR and old pre-1.8.0 bootloader
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// reset handlers are not the same
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u32 reset_start_v1 = (header_v2.hdrlen_or_reset_handler_thumb & 0xFFFFFFFE);
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if (reset_start_v1 != (vector_table.exceptions.reset)) {
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std::print("v1 reset handler differs from VTOR");
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};
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// another possible declaration of exception handler with masking
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// u8 reset_start_vtor[256] @ (vector_table.exceptions.reset & 0xFFFFFFFE);
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// declaration via ptr, needs mask out Thumb bit
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// u8 *reset_start_v1_ptr : u32 @ (V2_HEADER_BASE + 0x4);
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std::assert(header_v1.magic_old == FW_MAGIC_OLD, "Wrong OLD magic");
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std::assert(header_v2.magic_new == FW_MAGIC_NEW, "Wrong NEW magic");
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