| 1 | import { u8aEq } from '../u8a/eq.js';
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| 2 | import { isU8a } from './u8a.js';
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| 3 | const ELF_MAGIC = new Uint8Array([0x7f, 0x45, 0x4c, 0x46]); // ELF magic bytes: 0x7f, 'E', 'L', 'F'
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| 4 | const PVM_MAGIC = new Uint8Array([0x50, 0x56, 0x4d, 0x00]); // 'P', 'V', 'M', 0x00
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| 5 | /**
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| 6 | * @name isRiscV
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| 7 | * @summary Tests if the input has a RISC-V header
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| 8 | * @description
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| 9 | * Checks to see if the input Uint8Array contains a valid RISC-V header
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| 10 | */
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| 11 | export function isRiscV(bytes) {
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| 12 | if (isU8a(bytes)) {
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| 13 | const start = bytes.subarray(0, 4);
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| 14 | return u8aEq(start, PVM_MAGIC) || u8aEq(start, ELF_MAGIC);
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| 15 | }
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| 16 | return false;
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| 17 | }
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