;*****************************************************************************;* amd64inc.asm: h264 encoder library;*****************************************************************************;* Copyright (C) 2005 x264 project;*;* Authors: Andrew Dunstan;*;* This program is free software; you can redistribute it and/or modify;* it under the terms of the GNU General Public License as published by;* the Free Software Foundation; either version 2 of the License, or;* (at your option) any later version.;*;* This program is distributed in the hope that it will be useful,;* but WITHOUT ANY WARRANTY; without even the implied warranty of;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the;* GNU General Public License for more details.;*;* You should have received a copy of the GNU General Public License;* along with this program; if not, write to the Free Software;* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.;*****************************************************************************BITS 64; FIXME: All of the 64bit asm functions that take a stride as an argument; via register, assume that the high dword of that register is filled with 0.; This is true in practice (since we never do any 64bit arithmetic on strides),; but is not guaranteed by the ABI.%macro cglobal 1    %ifdef PREFIX        global _%1        %define %1 _%1    %else        global %1    %endif%ifdef WIN64    %define %1 pad %1%endif%endmacro%macro pad 1    %undef %1    %ifdef PREFIX        %define %1 _%1    %endif    %ifdef WIN64        times 6 nop        align 16        %1        .startfunc        %assign unwindcount 0        %assign framereg 0    %else        align 16        %1    %endif%endmacro%ifdef WIN64%define __PIC__%define parm1q rcx%define parm2q rdx%define parm3q r8%define parm4q r9%define parm5q [rsp+40]%define parm6q [rsp+48]%define parm7q [rsp+56]%define parm8q [rsp+64]%define parm1d ecx%define parm2d edx%define parm3d r8d%define parm4d r9d%define parm5d dword parm5q%define parm6d dword parm6q%define parm7d dword parm7q%define parm8d dword parm8q%macro firstpush 1    db 0x48    push %1%endmacro%define unwindcode(count, code) .unwind %+ count EQU code%define regcoderax 0%define regcodercx 1%define regcoderdx 2%define regcoderbx 3%define regcodersp 4%define regcoderbp 5%define regcodersi 6%define regcoderdi 7%define regcoder8 8%define regcoder9 9%define regcoder10 10%define regcoder11 11%define regcoder12 12%define regcoder13 13%define regcoder14 14%define regcoder15 15%define regcodexmm0 0%define regcodexmm1 1%define regcodexmm2 2%define regcodexmm3 3%define regcodexmm4 4%define regcodexmm5 5%define regcodexmm6 6%define regcodexmm7 7%define regcodexmm8 8%define regcodexmm9 9%define regcodexmm10 10%define regcodexmm11 11%define regcodexmm12 12%define regcodexmm13 13%define regcodexmm14 14%define regcodexmm15 15%macro allocstack 1    %if %1 < 8        %error Stack Allocation must be at least 8 bytes.    %elif %1 < 129        %assign unwindcount unwindcount+1        unwindcode(unwindcount, $-.startfunc + 0x200 + (((%1-8)/8)<<12))    %elif %1 < 524288        %assign unwindcount unwindcount+1        unwindcode(unwindcount, %1/8)        %assign unwindcount unwindcount+1        unwindcode(unwindcount, $-.startfunc + 0x100)    %else        %assign unwindcount unwindcount+1        unwindcode(unwindcount, %1>>16)        %assign unwindcount unwindcount+1        unwindcode(unwindcount, %1 & 0x0000FFFF)        %assign unwindcount unwindcount+1        unwindcode(unwindcount, $-.startfunc + 0x1100)    %endif%endmacro%macro pushreg 1    %assign unwindcount unwindcount+1    unwindcode(unwindcount, $-.startfunc + 0 + (regcode%1 << 12))%endmacro%macro setframe 2    %if ((%2 % 16) | (%2 > 240) | (%2 < 0))        %error Frame offset must be a multiple of 16 between 0 and 240.    %endif    %assign unwindcount unwindcount+1    unwindcode(unwindcount, $-.startfunc + (3 << 8 )+ (regcode%1 << 12))    %assign framereg regcode%1 + %2%endmacro%macro savereg 2    %if ((%2 % 8) | (%2 < 0))        %error Offset must be a positive multiple of 8.    %endif    %if (%2 < 64504)        %assign unwindcount unwindcount+1        unwindcode(unwindcount, %2/8)        %assign unwindcount unwindcount +1        unwindcode(unwindcount, $-.startfunc + (4 << 8) + (regcode%1 << 12))    %else        %assign unwindcount unwindcount+1        unwindcode(unwindcount, %2 >> 16)        %assign unwindcount unwindcount+1        unwindcode(unwindcount, %2 & 0x0000FFFF)        %assign unwindcount unwindcount+1        unwindcode(unwindcount, $-.startfunc + (5 << 8) + (regcode%1 << 12))    %endif%endmacro%macro savexmm128 2    %if ((%2 % 16) | (%2 < 0))        %error Offset must be a positive multiple of 16.    %endif    %if (%2 < 64512)        %assign unwindcount unwindcount+1        unwindcode(unwindcount, %2/16)        %assign unwindcount unwindcount +1        unwindcode(unwindcount, $-.startfunc + (8 << 8) + (regcode%1 << 12))    %else        %assign unwindcount unwindcount+1        unwindcode(unwindcount, %2 >> 16)        %assign unwindcount unwindcount+1        unwindcode(unwindcount, %2 & 0x0000FFFF)        %assign unwindcount unwindcount+1        unwindcode(unwindcount, $-.startfunc + (9 << 8) + (regcode%1 << 12))    %endif%endmacro%macro endprolog 0.endprologSECTION .xdata.unwindinfo    db 0x01    db .endprolog-.startfunc    db unwindcount    db framereg    %rep unwindcount        dw .unwind %+ unwindcount        %assign unwindcount unwindcount-1    %endrepalign 4,db 0SECTION .text%endmacro%macro endfunc 0.endfuncSECTION .pdata    dd .startfunc    dd .endfunc    dd .unwindinfoSECTION .text%endmacro%else ;linux%define parm1q rdi%define parm2q rsi%define parm3q rdx%define parm4q rcx%define parm5q r8%define parm6q r9%define parm7q [rsp+8]%define parm8q [rsp+16]%define parm1d edi%define parm2d esi%define parm3d edx%define parm4d ecx%define parm5d r8d%define parm6d r9d%define parm7d dword parm7q%define parm8d dword parm8q%macro allocstack 1%endmacro%macro firstpush 1    push %1%endmacro%macro pushreg 1%endmacro%macro setframe 2%endmacro%macro savereg 2%endmacro%macro savexmm128 2%endmacro%define endprolog%define endfunc%endif ;linux; PIC support macros. On x86_64 we just use RIP-relative addressing, which is; much simpler than the GOT handling we need to perform on x86.;; - GLOBAL should be used as a suffix for global addressing, eg.;     mov eax, [foo GLOBAL];   instead of;     mov eax, [foo];%ifdef __PIC__    %define GLOBAL wrt rip%else    %define GLOBAL%endif%assign FENC_STRIDE 16%assign FDEC_STRIDE 32; This is needed for ELF, otherwise the GNU linker assumes the stack is; executable by default.%ifidn __YASM_OBJFMT__,elfsection ".note.GNU-stack" noalloc noexec nowrite progbits%endif