我在注册时加载了一些内容xmm1，假设它可以被视为
xmm1 = | bgra | bgra | bgra | bgra | (each one a dw)
现在，我想在每个双字逻辑上向右移动 1 个字节，所以它最终是这样的：
xmm1 = | 0bgr | 0bgr | 0bgr | 0bgr | (each one a dw)
我在英特尔文档中发现我可能正在寻找函数“psrld”：
然而，它并没有像我预期的那样工作，因为一开始的价值xmm1是
xmm1 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x37, 0x51, 0x9e, 0x0, 0x3e, 0x58, 0xa5, 0x0, 0x3e, 0x5a, 0xa7, 0x0, 0x4a, 0x66, 0xb3, 0x0}, v8_int16 = {0x5137, 0x9e, 0x583e, 0xa5, 0x5a3e, 0xa7, 0x664a, 0xb3}, v4_int32 = {0x9e5137, 0xa5583e, 0xa75a3e, 0xb3664a}, v2_int64 = {0xa5583e009e5137, 0xb3664a00a75a3e}, uint128 = 0x00b3664a00a75a3e00a5583e009e5137}
然后，应用 后psrld xmm1, 1，xmm1 的值为
xmm1 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x9b, 0x28, 0x4f, 0x0, 0x1f, 0xac, 0x52, 0x0, 0x1f, 0xad, 0x53, 0x0, 0x25, 0xb3, 0x59, 0x0}, v8_int16 = {0x289b, 0x4f, 0xac1f, 0x52, 0xad1f, 0x53, 0xb325, 0x59}, v4_int32 = {0x4f289b, 0x52ac1f, 0x53ad1f, 0x59b325}, v2_int64 = {0x52ac1f004f289b, 0x59b3250053ad1f}, uint128 = 0x0059b3250053ad1f0052ac1f004f289b}
这不是我想做的。我哪里错了？实现此目的的正确方法是什么？