Unverified50% confidenceFactExact time

AMD64将通用寄存器从8个扩展到16个，寄存器宽度从32位扩展到64位，引入REX前缀，并保持向后兼容x86

1

Sources

50%

Confidence

Long-term

Relevance

8/7/2026

First Seen

Sources

Windows XP Itanium Edition: The Complete Story of IA-64's Failure

Related Claims

UnverifiedAMX的核心组件包括默认8个二维Tile寄存器（每个最大可达1KB，即16行×64字节）、TILECFG指令，以及TDPBF16PS、TDPBSSD等矩阵乘法指令79% similar Unverified安腾配备128个通用寄存器和128个浮点寄存器，远超同时代x86处理器的8个通用寄存器74% similar UnverifiedC64配备64KB内存、8位MOS 6510处理器，主频约1MHz72% similar

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