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some comments for amd64 and nimvm CPU (#16756)

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Timothee Cour 2021-01-20 02:10:11 -08:00 • committed by GitHub
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compiler/platform.nim
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@ -214,13 +214,14 @@ const
(name: "vm", intSize: 32, endian: littleEndian, floatSize: 64, bit: 32), (name: "vm", intSize: 32, endian: littleEndian, floatSize: 64, bit: 32),
(name: "hppa", intSize: 32, endian: bigEndian, floatSize: 64, bit: 32), (name: "hppa", intSize: 32, endian: bigEndian, floatSize: 64, bit: 32),
(name: "ia64", intSize: 64, endian: littleEndian, floatSize: 64, bit: 64), (name: "ia64", intSize: 64, endian: littleEndian, floatSize: 64, bit: 64),
(name: "amd64", intSize: 64, endian: littleEndian, floatSize: 64, bit: 64), (name: "amd64", intSize: 64, endian: littleEndian, floatSize: 64, bit: 64), # a.k.a. x86_64, covers both amd and intel
(name: "mips", intSize: 32, endian: bigEndian, floatSize: 64, bit: 32), (name: "mips", intSize: 32, endian: bigEndian, floatSize: 64, bit: 32),
(name: "mipsel", intSize: 32, endian: littleEndian, floatSize: 64, bit: 32), (name: "mipsel", intSize: 32, endian: littleEndian, floatSize: 64, bit: 32),
(name: "arm", intSize: 32, endian: littleEndian, floatSize: 64, bit: 32), (name: "arm", intSize: 32, endian: littleEndian, floatSize: 64, bit: 32),
(name: "arm64", intSize: 64, endian: littleEndian, floatSize: 64, bit: 64), (name: "arm64", intSize: 64, endian: littleEndian, floatSize: 64, bit: 64),
(name: "js", intSize: 32, endian: bigEndian,floatSize: 64,bit: 32), (name: "js", intSize: 32, endian: bigEndian,floatSize: 64,bit: 32),
(name: "nimvm", intSize: 32, endian: bigEndian, floatSize: 64, bit: 32), (name: "nimvm", intSize: 32, endian: bigEndian, floatSize: 64, bit: 32),
# xxx this seems buggy; on a 64bit machine, sizeof(int) is 64 in nimvm.
(name: "avr", intSize: 16, endian: littleEndian, floatSize: 32, bit: 16), (name: "avr", intSize: 16, endian: littleEndian, floatSize: 32, bit: 16),
(name: "msp430", intSize: 16, endian: littleEndian, floatSize: 32, bit: 16), (name: "msp430", intSize: 16, endian: littleEndian, floatSize: 32, bit: 16),
(name: "sparc64", intSize: 64, endian: bigEndian, floatSize: 64, bit: 64), (name: "sparc64", intSize: 64, endian: bigEndian, floatSize: 64, bit: 64),