if ~ defined SSE

	restore SSE	; this ensures that symbol cannot be forward-referenced
	SSE = 1

	include 'mmx.inc'

	element SSE.reg

	repeat 8, i:0
		element xmm#i? : SSE.reg + i
	end repeat

	define x86.dqword? :16
	define x86.xword? :16

	iterate context, @dest,@src,@src2,@aux

		namespace context

			calminstruction SSE.parse_operand#context operand

				call	x86.parse_operand#context, operand

				check	type = 'imm' & size = 0
				jno	done
				check	imm eq 1 elementof imm & 1 metadataof imm relativeto MMX.reg
				jyes	mm_register
				check	imm eq 1 elementof imm & 1 metadataof imm relativeto SSE.reg
				jyes	xmm_register
				exit

			    mm_register:

				compute rm, 1 metadataof imm - MMX.reg
				compute size, 8

				jump	export_mmreg

			    xmm_register:

				compute rm, 1 metadataof imm - SSE.reg
				compute size, 16

			    export_mmreg:

				compute type, 'mmreg'
				compute mod, 11b

			    done:

			end calminstruction

		end namespace

	end iterate

	calminstruction SSE.basic_instruction pre,ext,msize,dest,src
		call	SSE.parse_operand@dest, dest
		call	SSE.parse_operand@src,	src
		check	@dest.type = 'mmreg' & (@src.type = 'mem' | @src.type = 'mmreg')
		jno	invalid_combination_of_operands
		check	@dest.size <> 16 | (@src.type = 'mem' & @src.size and not msize) | (@src.type = 'mmreg' & @src.size <> 16)
		jno	size_ok
		err	'invalid operand size'
	    size_ok:
		compute @src.opcode_prefix, pre
		xcall	x86.store_instruction@src, <0Fh,ext>,@dest.rm
		exit
	    invalid_combination_of_operands:
		err	'invalid combination of operands'
	end calminstruction

	calminstruction SSE.basic_instruction_imm8 pre,ext,msize,dest,src,aux
		call	SSE.parse_operand@dest, dest
		call	SSE.parse_operand@src,	src
		call	x86.parse_operand@aux, aux
		check	@dest.type = 'mmreg' & (@src.type = 'mem' | @src.type = 'mmreg') & @aux.type = 'imm'
		jno	invalid_combination_of_operands
		check	@dest.size <> 16 | (@src.type = 'mem' & @src.size and not msize) | (@src.type = 'mmreg' & @src.size <> 16) | @aux.size and not 1
		jno	size_ok
		err	'invalid operand size'
	    size_ok:
		compute @src.opcode_prefix, pre
		xcall	x86.store_instruction@src, <0Fh,ext>,@dest.rm,byte,@aux.imm
		exit
	    invalid_combination_of_operands:
		err	'invalid combination of operands'
	end calminstruction

	iterate <instr,ext>, sqrt,51h, rsqrt,52h, rcp,53h, add,58h, mul,59h, sub,5Ch, min,5Dh, div,5Eh, max,5Fh
		macro instr#ps? dest*,src*
			SSE.basic_instruction 0,ext,16,dest,src
		end macro
		macro instr#ss? dest*,src*
			SSE.basic_instruction 0F3h,ext,4,dest,src
		end macro
	end iterate

	iterate <instr,ext>, and,54h, andn,55h, or,56h, xor,57h, unpckl,14h, unpckh,15h
		macro instr#ps? dest*,src*
			SSE.basic_instruction 0,ext,16,dest,src
		end macro
	end iterate

	macro cmpps? dest*,src*,code*
		SSE.basic_instruction_imm8 0,0C2h,16,dest,src,code
	end macro

	macro cmpss? dest*,src*,code*
		SSE.basic_instruction_imm8 0F3h,0C2h,4,dest,src,code
	end macro

	iterate <cond,code>, eq,0, lt,1, le,2, unord,3, neq,4, nlt,5, nle,6, ord,7
		macro cmp#cond#ps? dest*,src*
			cmpps dest,src,code
		end macro
		macro cmp#cond#ss? dest*,src*
			cmpss dest,src,code
		end macro
	end iterate

	macro shufps? dest*,src*,imm*
		SSE.basic_instruction_imm8 0,0C6h,16,dest,src,imm
	end macro

	iterate <instr,ext>, movaps,28h, movups,10h
		macro instr? dest*,src*
			SSE.parse_operand@dest dest
			SSE.parse_operand@src src
			if (@dest.size or @src.size) and not 16
				err 'invalid operand size'
			end if
			if @dest.type = 'mmreg' & (@src.type = 'mem' | @src.type = 'mmreg')
				x86.store_instruction@src <0Fh,ext>,@dest.rm
			else if @dest.type = 'mem' & @src.type = 'mmreg'
				x86.store_instruction@dest <0Fh,ext+1>,@src.rm
			else
				err 'invalid combination of operands'
			end if
		end macro
	end iterate

	iterate <instr,ext>, movlps,12h, movhps,16h
		macro instr? dest*,src*
			SSE.parse_operand@dest dest
			SSE.parse_operand@src src
			if @dest.type = 'mmreg' & @src.type = 'mem'
				if @dest.size <> 16 | @src.size and not 8
					err 'invalid operand size'
				end if
				x86.store_instruction@src <0Fh,ext>,@dest.rm
			else if @dest.type = 'mem' & @src.type = 'mmreg'
				if @dest.size and not 8 | @src.size <> 16
					err 'invalid operand size'
				end if
				x86.store_instruction@dest <0Fh,ext+1>,@src.rm
			else
				err 'invalid combination of operands'
			end if
		end macro
	end iterate

	iterate <instr,ext>, movhlps,12h, movlhps,16h
		macro instr? dest*,src*
			SSE.parse_operand@dest dest
			SSE.parse_operand@src src
			if (@dest.size or @src.size) and not 16
				err 'invalid operand size'
			end if
			if @dest.type = 'mmreg' & @src.type = 'mmreg'
				x86.store_instruction@src <0Fh,ext>,@dest.rm
			else
				err 'invalid combination of operands'
			end if
		end macro
	end iterate

	macro movss? dest*,src*
		SSE.parse_operand@dest dest
		SSE.parse_operand@src src
		if @dest.type = 'mmreg' & (@src.type = 'mem' | @src.type = 'mmreg')
			if @dest.size <> 16 | (@src.type = 'mem' & @src.size and not 4) | (@src.type = 'mmreg' & @src.size <> 16)
				err 'invalid operand size'
			end if
			@src.opcode_prefix = 0F3h
			x86.store_instruction@src <0Fh,10h>,@dest.rm
		else if @dest.type = 'mem' & @src.type = 'mmreg'
			if @dest.size and not 4 | @src.size <> 16
				err 'invalid operand size'
			end if
			@dest.opcode_prefix = 0F3h
			x86.store_instruction@dest <0Fh,11h>,@src.rm
		else
			err 'invalid combination of operands'
		end if
	end macro

	macro movntps? dest*,src*
		SSE.parse_operand@dest dest
		SSE.parse_operand@src src
		if @dest.type = 'mem' & @src.type = 'mmreg'
			if (@dest.size or @src.size) and not 16
				err 'invalid operand size'
			end if
			x86.store_instruction@dest <0Fh,2Bh>,@src.rm
		else
			err 'invalid combination of operands'
		end if
	end macro

	macro movmskps? dest*,src*
		x86.parse_operand@dest dest
		SSE.parse_operand@src src
		if @dest.type = 'reg' & @src.type = 'mmreg'
			if (@dest.size <> 4 & (x86.mode < 64 | @dest.size <> 8)) | @src.size <> 16
				err 'invalid operand size'
			end if
			x86.store_instruction@src <0Fh,50h>,@dest.rm
		else
			err 'invalid combination of operands'
		end if
	end macro

	iterate <instr,ext>, ucomiss,2Eh, comiss,2Fh
		macro instr? dest*,src*
			SSE.parse_operand@dest dest
			SSE.parse_operand@src src
			if @dest.type = 'mmreg' & (@src.type = 'mem' | @src.type = 'mmreg')
				if @dest.size <> 16 | (@src.type = 'mem' & @src.size and not 4) | (@src.type = 'mmreg' & @src.size <> 16)
					err 'invalid operand size'
				end if
				x86.store_instruction@src <0Fh,ext>,@dest.rm
			else
				err 'invalid combination of operands'
			end if
		end macro
	end iterate

	macro cvtpi2ps? dest*,src*
		SSE.parse_operand@dest dest
		SSE.parse_operand@src src
		if @dest.type = 'mmreg' & (@src.type = 'mem' | @src.type = 'mmreg')
			if @dest.size <> 16 | @src.size and not 8
				err 'invalid operand size'
			end if
			x86.store_instruction@src <0Fh,2Ah>,@dest.rm
		else
			err 'invalid combination of operands'
		end if
	end macro

	macro cvtsi2ss? dest*,src*
		SSE.parse_operand@dest dest
		x86.parse_operand@src src
		if @dest.type = 'mmreg' & (@src.type = 'mem' | @src.type = 'reg')
			if @src.size = 0
				err 'operand size not specified'
			else if @dest.size <> 16 | @src.size < 4
				err 'invalid operand size'
			end if
			x86.select_operand_prefix@src @src.size
			@src.opcode_prefix = 0F3h
			x86.store_instruction@src <0Fh,2Ah>,@dest.rm
		else
			err 'invalid combination of operands'
		end if
	end macro

	iterate <instr,ext>, cvttps2pi,2Ch, cvtps2pi,2Dh
		macro instr? dest*,src*
			SSE.parse_operand@dest dest
			SSE.parse_operand@src src
			if @dest.type = 'mmreg' & (@src.type = 'mem' | @src.type = 'mmreg')
				if @dest.size <> 8 | (@src.size = 'mem' & @src.size and not 8) | (@src.size = 'mmreg' & @src.size <> 16)
					err 'invalid operand size'
				end if
				x86.store_instruction@src <0Fh,ext>,@dest.rm
			else
				err 'invalid combination of operands'
			end if
		end macro
	end iterate

	iterate <instr,ext>, cvttss2si,2Ch, cvtss2si,2Dh
		macro instr? dest*,src*
			SSE.parse_operand@dest dest
			SSE.parse_operand@src src
			if @dest.type = 'reg' & (@src.type = 'mem' | @src.type = 'mmreg')
				if @dest.size < 4 | (@src.size = 'mem' & @src.size and not 4) | (@src.size = 'mmreg' & @src.size <> 16)
					err 'invalid operand size'
				end if
				x86.select_operand_prefix@src @dest.size
				@src.opcode_prefix = 0F3h
				x86.store_instruction@src <0Fh,ext>,@dest.rm
			else
				err 'invalid combination of operands'
			end if
		end macro
	end iterate

	iterate <instr,ext>, pminub,0DAh, pmaxub,0DEh, pavgb,0E0h, pavgw,0E3h, pmulhuw,0E4h, pminsw,0EAh, pmaxsw,0EEh, psadbw,0F6h
		macro instr? dest*,src*
			MMX.basic_instruction ext,dest,src
		end macro
	end iterate

	macro pinsrw? dest*,src*,sel*
		MMX.parse_operand@dest dest
		x86.parse_operand@src src
		x86.parse_operand@aux sel
		if @dest.type = 'mmreg' & (@src.type = 'reg' | @src.type = 'mem') & @aux.type = 'imm'
			if (@src.type = 'reg' & @src.size <> 4) | (@src.type = 'mem' & @src.size and not 2) | @aux.size and not 1
				err 'invalid operand size'
			end if
			x86.store_instruction@src <0Fh,0C4h>,@dest.rm,1,@aux.imm
		else
			err 'invalid combination of operands'
		end if
	end macro

	macro pextrw? dest*,src*,sel*
		x86.parse_operand@dest dest
		MMX.parse_operand@src src
		x86.parse_operand@aux sel
		if @dest.type = 'reg' & @src.type = 'mmreg' & @aux.type = 'imm'
			if @dest.size <> 4 | @aux.size and not 1
				err 'invalid operand size'
			end if
			x86.store_instruction@src <0Fh,0C5h>,@dest.rm,1,@aux.imm
		else
			err 'invalid combination of operands'
		end if
	end macro

	macro pshufw? dest*,src*,sel*
		MMX.parse_operand@dest dest
		MMX.parse_operand@src src
		x86.parse_operand@aux sel
		if @dest.type = 'mmreg' & (@src.type = 'mem' | @src.type = 'mmreg') & @aux.type = 'imm'
			if @src.size and not 8 | @aux.size and not 1
				err 'invalid operand size'
			end if
			x86.store_instruction@src <0Fh,70h>,@dest.rm,1,@aux.imm
		else
			err 'invalid combination of operands'
		end if
	end macro

	macro pmovmskb? dest*,src*
		x86.parse_operand@dest dest
		MMX.parse_operand@src src
		if @dest.type = 'reg' & @src.type = 'mmreg'
			if @dest.size <> 4
				err 'invalid operand size'
			end if
			x86.store_instruction@src <0Fh,0D7h>,@dest.rm
		else
			err 'invalid combination of operands'
		end if
	end macro

	macro movntq? dest*,src*
		MMX.parse_operand@dest dest
		MMX.parse_operand@src src
		if @dest.type = 'mem' & @src.type = 'mmreg'
			if @dest.size and not 8
				err 'invalid operand size'
			end if
			x86.store_instruction@dest <0Fh,0E7h>,@src.rm
		else
			err 'invalid combination of operands'
		end if
	end macro

	macro maskmovq? src*,sel*
		MMX.parse_operand@src src
		MMX.parse_operand@aux sel
		if @src.type = 'mmreg' & @aux.type = 'mmreg'
			x86.store_instruction@aux <0Fh,0F7h>,@src.rm
		else
			err 'invalid combination of operands'
		end if
	end macro

	iterate <instr,postbyte>, prefetchnta,0, prefetcht0,1, prefetcht1,2, prefetcht2,3
		macro instr? src*
			x86.parse_operand@src src
			if @src.type = 'mem'
				if @src.size and not 1
					err 'invalid operand size'
				end if
				x86.store_instruction@src <0Fh,18h>,postbyte
			else
				err 'invalid operand'
			end if
		end macro
	end iterate

	macro sfence?
		db 0Fh,0AEh,0F8h
	end macro

	iterate <instr,postbyte>, fxsave,0, fxrstor,1
		macro instr? src*
			x86.parse_operand@src src
			if @src.type = 'mem'
				if @src.size and not 512
					err 'invalid operand size'
				end if
				x86.store_instruction@src <0Fh,0AEh>,postbyte
			else
				err 'invalid operand'
			end if
		end macro
	end iterate

	iterate <instr,postbyte>, ldmxcsr,2, stmxcsr,3
		macro instr? src*
			x86.parse_operand@src src
			if @src.type = 'mem'
				if @src.size and not 4
					err 'invalid operand size'
				end if
				x86.store_instruction@src <0Fh,0AEh>,postbyte
			else
				err 'invalid operand'
			end if
		end macro
	end iterate

end if