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stdmac.asm
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Copyright(c) 2011-2016 Intel Corporation All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions
; are met:
; * Redistributions of source code must retain the above copyright
; notice, this list of conditions and the following disclaimer.
; * Redistributions in binary form must reproduce the above copyright
; notice, this list of conditions and the following disclaimer in
; the documentation and/or other materials provided with the
; distribution.
; * Neither the name of Intel Corporation nor the names of its
; contributors may be used to endorse or promote products derived
; from this software without specific prior written permission.
;
; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
%ifndef STDMAC_ASM
%define STDMAC_ASM
;; internal macro used by push_all
;; push args L to R
%macro push_all_ 1-*
%xdefine _PUSH_ALL_REGS_COUNT_ %0
%rep %0
push %1
%rotate 1
%endrep
%endmacro
;; internal macro used by pop_all
;; pop args R to L
%macro pop_all_ 1-*
%rep %0
%rotate -1
pop %1
%endrep
%endmacro
%xdefine _PUSH_ALL_REGS_COUNT_ 0
%xdefine _ALLOC_STACK_VAL_ 0
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; STACK_OFFSET
;; Number of bytes subtracted from stack due to PUSH_ALL and ALLOC_STACK
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
%define STACK_OFFSET (_PUSH_ALL_REGS_COUNT_ * 8 + _ALLOC_STACK_VAL_)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; PUSH_ALL reg1, reg2, ...
;; push args L to R, remember regs for pop_all
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
%macro PUSH_ALL 1+
%xdefine _PUSH_ALL_REGS_ %1
push_all_ %1
%endmacro
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; POP_ALL
;; push args from prev "push_all" R to L
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
%macro POP_ALL 0
pop_all_ _PUSH_ALL_REGS_
%xdefine _PUSH_ALL_REGS_COUNT_ 0
%endmacro
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ALLOC_STACK n
;; subtract n from the stack pointer and remember the value for restore_stack
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
%macro ALLOC_STACK 1
%xdefine _ALLOC_STACK_VAL_ %1
sub rsp, %1
%endmacro
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; RESTORE_STACK
;; add n to the stack pointer, where n is the arg to the previous alloc_stack
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
%macro RESTORE_STACK 0
add rsp, _ALLOC_STACK_VAL_
%xdefine _ALLOC_STACK_VAL_ 0
%endmacro
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; NOPN n
;; Create n bytes of NOP, using nops of up to 8 bytes each
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
%macro NOPN 1
%assign %%i %1
%rep 200
%if (%%i < 9)
nopn %%i
%exitrep
%else
nopn 8
%assign %%i (%%i - 8)
%endif
%endrep
%endmacro
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; nopn n
;; Create n bytes of NOP, where n is between 1 and 9
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
%macro nopn 1
%if (%1 == 1)
nop
%elif (%1 == 2)
db 0x66
nop
%elif (%1 == 3)
db 0x0F
db 0x1F
db 0x00
%elif (%1 == 4)
db 0x0F
db 0x1F
db 0x40
db 0x00
%elif (%1 == 5)
db 0x0F
db 0x1F
db 0x44
db 0x00
db 0x00
%elif (%1 == 6)
db 0x66
db 0x0F
db 0x1F
db 0x44
db 0x00
db 0x00
%elif (%1 == 7)
db 0x0F
db 0x1F
db 0x80
db 0x00
db 0x00
db 0x00
db 0x00
%elif (%1 == 8)
db 0x0F
db 0x1F
db 0x84
db 0x00
db 0x00
db 0x00
db 0x00
db 0x00
%elif (%1 == 9)
db 0x66
db 0x0F
db 0x1F
db 0x84
db 0x00
db 0x00
db 0x00
db 0x00
db 0x00
%else
%error Invalid value to nopn
%endif
%endmacro
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; rolx64 dst, src, amount
;; Emulate a rolx instruction using rorx, assuming data 64 bits wide
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
%macro rolx64 3
rorx %1, %2, (64-%3)
%endm
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; rolx32 dst, src, amount
;; Emulate a rolx instruction using rorx, assuming data 32 bits wide
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
%macro rolx32 3
rorx %1, %2, (32-%3)
%endm
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Define a function void ssc(uint64_t x)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
%macro DEF_SSC 0
global ssc
ssc:
mov rax, rbx
mov rbx, rcx
db 0x64
db 0x67
nop
mov rbx, rax
ret
%endm
%macro MOVDQU 2
%define %%dest %1
%define %%src %2
%if ((ARCH == 02) || (ARCH == 03) || (ARCH == 04))
vmovdqu %%dest, %%src
%else
movdqu %%dest, %%src
%endif
%endm
%macro MOVDQA 2
%define %%dest %1
%define %%src %2
%if ((ARCH == 02) || (ARCH == 03) || (ARCH == 04))
vmovdqa %%dest, %%src
%else
movdqa %%dest, %%src
%endif
%endm
%macro MOVD 2
%define %%dest %1
%define %%src %2
%if (ARCH == 02 || ARCH == 03 || ARCH == 04)
vmovd %%dest, %%src
%else
movd %%dest, %%src
%endif
%endm
%macro MOVQ 2
%define %%dest %1
%define %%src %2
%if (ARCH == 02 || ARCH == 03 || ARCH == 04)
vmovq %%dest, %%src
%else
movq %%dest, %%src
%endif
%endm
;; Move register if the src and dest are not equal
%macro MOVNIDN 2
%define dest %1
%define src %2
%ifnidn dest, src
mov dest, src
%endif
%endm
%macro MOVDQANIDN 2
%define dest %1
%define src %2
%ifnidn dest, src
MOVDQA dest, src
%endif
%endm
%macro PSHUFD 3
%define %%dest %1
%define %%src1 %2
%define %%imm8 %3
%if ((ARCH == 02) || (ARCH == 03) || (ARCH == 04))
vpshufd %%dest, %%src1, %%imm8
%else
pshufd %%dest, %%src1, %%imm8
%endif
%endm
%macro PSHUFB 3
%define %%dest %1
%define %%src1 %2
%define %%shuf %3
%if ((ARCH == 02) || (ARCH == 03) || (ARCH == 04))
vpshufb %%dest, %%src1, %%shuf
%else
MOVDQANIDN %%dest, %%src1
pshufb %%dest, %%shuf
%endif
%endm
%macro PBROADCASTD 2
%define %%dest %1
%define %%src %2
%if (ARCH == 04)
vpbroadcastd %%dest, %%src
%else
MOVD %%dest, %%src
PSHUFD %%dest, %%dest, 0
%endif
%endm
;; Implement BZHI instruction on older architectures
;; Clobbers rcx, unless rcx is %%index
%macro BZHI 4
%define %%dest %1
%define %%src %2
%define %%index %3
%define %%tmp1 %4
%ifdef USE_HSWNI
bzhi %%dest, %%src, %%index
%else
MOVNIDN rcx, %%index
mov %%tmp1, 1
shl %%tmp1, cl
sub %%tmp1, 1
MOVNIDN %%dest, %%src
and %%dest, %%tmp1
%endif
%endm
;; Implement shrx instruction on older architectures
;; Clobbers rcx, unless rcx is %%index
%macro SHRX 3
%define %%dest %1
%define %%src %2
%define %%index %3
%ifdef USE_HSWNI
shrx %%dest, %%src, %%index
%else
MOVNIDN rcx, %%index
MOVNIDN %%dest, %%src
shr %%dest, cl
%endif
%endm
;; Implement shlx instruction on older architectures
;; Clobbers rcx, unless rcx is %%index
%macro SHLX 3
%define %%dest %1
%define %%src %2
%define %%index %3
%ifdef USE_HSWNI
shlx %%dest, %%src, %%index
%else
MOVNIDN %%dest, %%src
MOVNIDN rcx, %%index
shl %%dest, cl
%endif
%endm
%macro PINSRD 3
%define %%dest %1
%define %%src %2
%define %%offset %3
%if ((ARCH == 02) || (ARCH == 03) || (ARCH == 04))
vpinsrd %%dest, %%src, %%offset
%else
pinsrd %%dest, %%src, %%offset
%endif
%endm
%macro PEXTRD 3
%define %%dest %1
%define %%src %2
%define %%offset %3
%if ((ARCH == 02) || (ARCH == 03) || (ARCH == 04))
vpextrd %%dest, %%src, %%offset
%else
pextrd %%dest, %%src, %%offset
%endif
%endm
%macro PSRLDQ 2
%define %%dest %1
%define %%offset %2
%if ((ARCH == 02) || (ARCH == 03) || (ARCH == 04))
vpsrldq %%dest, %%offset
%else
psrldq %%dest, %%offset
%endif
%endm
%macro PSLLD 3
%define %%dest %1
%define %%src %2
%define %%offset %3
%if ((ARCH == 02) || (ARCH == 03) || (ARCH == 04))
vpslld %%dest, %%src, %%offset
%else
MOVDQANIDN %%dest, %%src
pslld %%dest, %%offset
%endif
%endm
%macro PAND 3
%define %%dest %1
%define %%src1 %2
%define %%src2 %3
%if (ARCH == 02 || ARCH == 03 || ARCH == 04)
vpand %%dest, %%src1, %%src2
%else
MOVDQANIDN %%dest, %%src1
pand %%dest, %%src2
%endif
%endm
%macro POR 3
%define %%dest %1
%define %%src1 %2
%define %%src2 %3
%if (ARCH == 02 || ARCH == 03 || ARCH == 04)
vpor %%dest, %%src1, %%src2
%else
MOVDQANIDN %%dest, %%src1
por %%dest, %%src2
%endif
%endm
%macro PXOR 3
%define %%dest %1
%define %%src1 %2
%define %%src2 %3
%if ((ARCH == 02) || (ARCH == 03) || (ARCH == 04))
vpxor %%dest, %%src1, %%src2
%else
MOVDQANIDN %%dest, %%src1
pxor %%dest, %%src2
%endif
%endm
%macro PADDD 3
%define %%dest %1
%define %%src1 %2
%define %%src2 %3
%if ((ARCH == 02) || (ARCH == 03) || (ARCH == 04))
vpaddd %%dest, %%src1, %%src2
%else
MOVDQANIDN %%dest, %%src1
paddd %%dest, %%src2
%endif
%endm
%macro PCMPEQB 3
%define %%dest %1
%define %%src1 %2
%define %%src2 %3
%if ((ARCH == 02) || (ARCH == 03) || (ARCH == 04))
vpcmpeqb %%dest, %%src1, %%src2
%else
MOVDQANIDN %%dest, %%src1
pcmpeqb %%dest, %%src2
%endif
%endm
%macro PMOVMSKB 2
%define %%dest %1
%define %%src %2
%if ((ARCH == 02) || (ARCH == 03) || (ARCH == 04))
vpmovmskb %%dest, %%src
%else
pmovmskb %%dest, %%src
%endif
%endm
%endif ;; ifndef STDMAC_ASM