On Mon, 2009-11-02 at 22:32 +0800, Ingo Molnar wrote: > * Herbert Xu <herb...@gondor.apana.org.au> wrote: > > > On Mon, Nov 02, 2009 at 08:50:39AM +0100, Ingo Molnar wrote: > > > > > > A cleanup request: mind creating two macros for this PSHUFB MMX/SSE > > > instruction in arch/x86/include/asm/i387.h, instead of open-coding the > > > .byte sequences in ~6 places? > > > > I had a go at doing that, but it seems that i387.h isn't really meant > > to be included in an asm file at this point :) > > Please use the standard construct and put an #ifndef __ASSEMBLY__ around > it. > > > > ( After the .33 merge window we'll collect such instruction format > > > knowledge in arch/x86/include/asm/inst.h. That file is not upstream > > > yet so i387.h will do for now for FPU/SSE instructions. ) > > > > I'm happy to revisit this once inst.h exists. > > No reason to not do most of the change first though, the way i suggested > it.
How about something as below? But it seems not appropriate to put these bits into i387.h, that is, to combine C and gas syntax. Best Regards, Huang Ying .macro xmm_num opd xmm .ifc \xmm,%xmm0 \opd = 0 .endif .ifc \xmm,%xmm1 \opd = 1 .endif .ifc \xmm,%xmm2 \opd = 2 .endif .ifc \xmm,%xmm3 \opd = 3 .endif .ifc \xmm,%xmm4 \opd = 4 .endif .ifc \xmm,%xmm5 \opd = 5 .endif .ifc \xmm,%xmm6 \opd = 6 .endif .ifc \xmm,%xmm7 \opd = 7 .endif .ifc \xmm,%xmm8 \opd = 8 .endif .ifc \xmm,%xmm9 \opd = 9 .endif .ifc \xmm,%xmm10 \opd = 10 .endif .ifc \xmm,%xmm11 \opd = 11 .endif .ifc \xmm,%xmm12 \opd = 12 .endif .ifc \xmm,%xmm13 \opd = 13 .endif .ifc \xmm,%xmm14 \opd = 14 .endif .ifc \xmm,%xmm15 \opd = 15 .endif .endm .macro PSHUFB_XMM xmm1 xmm2 xmm_num pshufb_opd1 \xmm1 xmm_num pshufb_opd2 \xmm2 .if (pshufb_opd1 < 8) && (pshufb_opd2 < 8) .byte 0x66, 0x0f, 0x38, 0x00, 0xc0 | pshufb_opd1 | (pshufb_opd2<<3) .elseif (pshufb_opd1 >= 8) && (pshufb_opd2 < 8) .byte 0x66, 0x41, 0x0f, 0x38, 0x00, 0xc0 | (pshufb_opd1-8) | (pshufb_opd2<<3) .elseif (pshufb_opd1 < 8) && (pshufb_opd2 >= 8) .byte 0x66, 0x44, 0x0f, 0x38, 0x00, 0xc0 | pshufb_opd1 | ((pshufb_opd2-8)<<3) .else .byte 0x66, 0x45, 0x0f, 0x38, 0x00, 0xc0 | (pshufb_opd1-8) | ((pshufb_opd2-8)<<3) .endif .endm -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
