33 lines
754 B
C
33 lines
754 B
C
asm (
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".section .entry\n\t"
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"cld\n\t"
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// Zero out .bss
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"xor al, al\n\t"
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"mov edi, OFFSET bss_begin\n\t"
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"mov ecx, OFFSET bss_end\n\t"
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"sub ecx, OFFSET bss_begin\n\t"
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"rep stosb\n\t"
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"mov ebx, OFFSET main\n\t"
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"jmp ebx\n\t"
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);
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#include <stdint.h>
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#include <stddef.h>
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#include <gzip/tinf.h>
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__attribute__((noreturn))
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void main(uint8_t *compressed_stage2, size_t stage2_size, uint8_t boot_drive) {
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// The decompressor should decompress compressed_stage2 to address 0x4000.
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volatile uint8_t *dest = (volatile uint8_t *)0x4000;
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tinf_gzip_uncompress(dest, compressed_stage2, stage2_size);
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__attribute__((noreturn))
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void (*stage2)(uint8_t boot_drive) = (void *)dest;
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stage2(boot_drive);
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}
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