ARM64 defines like IMAGE_FILE_MACHINE_ARM64 don't match docs

[markyoung2u]

1. This page says link /dump /headers will produce a "8664 machine (x64) (ARM64X)" but on my win 10 professional system, VS 2022 calls armasm64.exe and creates what link /dump /headers says is "A641 machine (ARM64EC)" but 0xA641 is NOT in latest winnt.h.
2. This page is for someone developing ARM while on an OS running ARM - where is the equivalent link{s} for when running on Window 10 or 11 but not ARM?

#define IMAGE_FILE_MACHINE_AMD64 0x8664 // AMD64 (K8)

Document Details

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• ID: 8caaf145-a41c-55d1-ad21-72f4a367195a
• Version Independent ID: 8caaf145-a41c-55d1-ad21-72f4a367195a
• Content: Arm64EC for Windows 11 apps on Arm
• Content Source: landing/arm-docs/arm64ec.md
• Product: windows
• Technology: arm
• GitHub Login: @marswe
• Microsoft Alias: marcs

[pmsjt]

The 0xA641 is used only in LIBs/OBJs. When the final image it assembled, it will be either 0xAA64 or 0x8664 depending on your linker choices. 0xA641 is used internally by MSVC and its values are not presently documented.