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ASMMatrixCumSumDiffOperationsx64.pas
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ASMMatrixCumSumDiffOperationsx64.pas
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// ###################################################################
// #### This file is part of the mathematics library project, and is
// #### offered under the licence agreement described on
// #### http://www.mrsoft.org/
// ####
// #### Copyright:(c) 2011, Michael R. . All rights reserved.
// ####
// #### Unless required by applicable law or agreed to in writing, software
// #### distributed under the License is distributed on an "AS IS" BASIS,
// #### WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// #### See the License for the specific language governing permissions and
// #### limitations under the License.
// ###################################################################
unit ASMMatrixCumSumDiffOperationsx64;
interface
{$I 'mrMath_CPU.inc'}
{$IFDEF x64}
procedure ASMMatrixCumulativeSumRow(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
procedure ASMMatrixCumulativeSumColumnEvenWUnaligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
procedure ASMMatrixCumulativeSumColumnOddWUnaligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
procedure ASMMatrixCumulativeSumColumnEvenWAligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
procedure ASMMatrixCumulativeSumColumnOddWAligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
procedure ASMMatrixDifferentiateRow(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
procedure ASMMatrixDifferentiateColumnEvenWUnaligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
procedure ASMMatrixDifferentiateColumnOddWUnaligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
procedure ASMMatrixDifferentiateColumnEvenWAligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
procedure ASMMatrixDifferentiateColumnOddWAligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
{$ENDIF}
implementation
{$IFDEF x64}
// ##################################################
// #### Cumulative sum
// ##################################################
procedure ASMMatrixCumulativeSumRow(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
var iRBX, iRDI, iRSI : NativeInt;
{$ifdef UNIX}
width : NativeInt;
height : NativeInt;
{$ENDIF}
// rcx: dest, rdx: destlinewidth; r8: src; r9 : srclinewidth
asm
{$IFDEF UNIX}
// Linux uses a diffrent ABI -> copy over the registers so they meet with winABI
// (note that the 5th and 6th parameter are are on the stack)
// The parameters are passed in the following order:
// RDI, RSI, RDX, RCX -> mov to RCX, RDX, R8, R9
mov width, r8;
mov height, r9;
mov r8, rdx;
mov r9, rcx;
mov rcx, rdi;
mov rdx, rsi;
{$ENDIF}
// prolog - maintain stack
mov iRBX, rbx;
mov iRDI, rdi;
mov iRSI, rsi;
// if (width <= 0) or (height <= 0) then exit;
mov rbx, width;
cmp rbx, 0;
jle @@exitproc;
mov rsi, height;
cmp rsi, 0;
jle @@exitproc;
// iter := -width*sizeof(Double)
imul rbx, -8;
// prepare counters
sub rcx, rbx;
sub r8, rbx;
@@foryloop:
mov rax, rbx;
xorpd xmm0, xmm0;
@@forxloop:
movsd xmm1, [r8 + rax];
addsd xmm0, xmm1;
movsd [rcx + rax], xmm0;
add rax, 8;
jnz @@forxloop;
add rcx, rdx;
add r8, r9;
dec rsi;
jnz @@foryloop;
@@exitProc:
// epilog - stack cleanup
mov rbx, iRBX;
mov rdi, iRDI;
mov rsi, iRSI;
end;
procedure ASMMatrixCumulativeSumColumnEvenWUnaligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
var iRDI, iRSI : NativeInt;
{$ifdef UNIX}
width : NativeInt;
height : NativeInt;
{$ENDIF}
// rcx: dest, rdx: destlinewidth; r8: src; r9 : srclinewidth
asm
{$IFDEF UNIX}
// Linux uses a diffrent ABI -> copy over the registers so they meet with winABI
// (note that the 5th and 6th parameter are are on the stack)
// The parameters are passed in the following order:
// RDI, RSI, RDX, RCX -> mov to RCX, RDX, R8, R9
mov width, r8;
mov height, r9;
mov r8, rdx;
mov r9, rcx;
mov rcx, rdi;
mov rdx, rsi;
{$ENDIF}
// prolog - maintain stack
mov iRDI, rdi;
mov iRSI, rsi;
// if (width <= 1) or (height <= 0) then exit;
mov r11, height;
cmp r11, 0;
jle @@exitproc;
mov r10, width;
cmp r10, 1;
jle @@exitproc;
sar r10, 1; // width div 2
@@forxloop:
mov rax, r11;
xorpd xmm0, xmm0;
xor rdi, rdi;
xor rsi, rsi;
// two values at once
@@foryloop:
movupd xmm1, [r8 + rdi];
addpd xmm0, xmm1;
movupd [rcx + rsi], xmm0;
add rdi, r9;
add rsi, rdx;
dec rax;
jnz @@foryloop;
add r8, 16;
add rcx, 16;
dec r10;
jnz @@forxloop;
@@exitProc:
// epilog - stack cleanup
mov rdi, iRDI;
mov rsi, iRSI;
end;
procedure ASMMatrixCumulativeSumColumnOddWUnaligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
var iRDI, iRSI : NativeInt;
{$ifdef UNIX}
width : NativeInt;
height : NativeInt;
{$ENDIF}
// rcx: dest, rdx: destlinewidth; r8: src; r9 : srclinewidth
asm
{$IFDEF UNIX}
// Linux uses a diffrent ABI -> copy over the registers so they meet with winABI
// (note that the 5th and 6th parameter are are on the stack)
// The parameters are passed in the following order:
// RDI, RSI, RDX, RCX -> mov to RCX, RDX, R8, R9
mov width, r8;
mov height, r9;
mov r8, rdx;
mov r9, rcx;
mov rcx, rdi;
mov rdx, rsi;
{$ENDIF}
// prolog - maintain stack
mov iRDI, rdi;
mov iRSI, rsi;
// if (width <= 1) or (height <= 0) then exit;
mov r11, height;
cmp r11, 0;
jle @@exitproc;
mov r10, width;
cmp r10, 1;
jle @@exitproc;
sar r10, 1; // width div 2
test r10, r10;
jz @@lastColumn;
@@forxloop:
mov rax, r11;
xorpd xmm0, xmm0;
xor rdi, rdi;
xor rsi, rsi;
// two values at once
@@foryloop:
movupd xmm1, [r8 + rdi];
addpd xmm0, xmm1;
movupd [rcx + rsi], xmm0;
add rdi, r9;
add rsi, rdx;
dec rax;
jnz @@foryloop;
add r8, 16;
add rcx, 16;
dec r10;
jnz @@forxloop;
@@lastColumn:
mov rax, r11;
xorpd xmm0, xmm0;
// last column
@@forycolumnloop:
movsd xmm1, [r8];
addsd xmm0, xmm1;
movsd [rcx], xmm0;
add r8, r9;
add rcx, rdx;
dec rax;
jnz @@forycolumnloop;
@@exitProc:
// epilog - stack cleanup
mov rdi, iRDI;
mov rsi, iRSI;
end;
procedure ASMMatrixCumulativeSumColumnEvenWAligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
var iRDI, iRSI : NativeInt;
{$ifdef UNIX}
width : NativeInt;
height : NativeInt;
{$ENDIF}
// rcx: dest, rdx: destlinewidth; r8: src; r9 : srclinewidth
asm
{$IFDEF UNIX}
// Linux uses a diffrent ABI -> copy over the registers so they meet with winABI
// (note that the 5th and 6th parameter are are on the stack)
// The parameters are passed in the following order:
// RDI, RSI, RDX, RCX -> mov to RCX, RDX, R8, R9
mov width, r8;
mov height, r9;
mov r8, rdx;
mov r9, rcx;
mov rcx, rdi;
mov rdx, rsi;
{$ENDIF}
// prolog - maintain stack
mov iRDI, rdi;
mov iRSI, rsi;
// if (width <= 1) or (height <= 0) then exit;
mov r11, height;
cmp r11, 0;
jle @@exitproc;
mov r10, width;
cmp r10, 1;
jle @@exitproc;
sar r10, 1; // width div 2
@@forxloop:
mov rax, r11;
xorpd xmm0, xmm0;
xor rdi, rdi;
xor rsi, rsi;
// two values at once
@@foryloop:
movapd xmm1, [r8 + rdi];
addpd xmm0, xmm1;
movapd [rcx + rsi], xmm0;
add rdi, r9;
add rsi, rdx;
dec rax;
jnz @@foryloop;
add r8, 16;
add rcx, 16;
dec r10;
jnz @@forxloop;
@@exitProc:
// epilog - stack cleanup
mov rdi, iRDI;
mov rsi, iRSI;
end;
procedure ASMMatrixCumulativeSumColumnOddWAligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
var iRDI, iRSI : NativeInt;
{$ifdef UNIX}
width : NativeInt;
height : NativeInt;
{$ENDIF}
// rcx: dest, rdx: destlinewidth; r8: src; r9 : srclinewidth
asm
{$IFDEF UNIX}
// Linux uses a diffrent ABI -> copy over the registers so they meet with winABI
// (note that the 5th and 6th parameter are are on the stack)
// The parameters are passed in the following order:
// RDI, RSI, RDX, RCX -> mov to RCX, RDX, R8, R9
mov width, r8;
mov height, r9;
mov r8, rdx;
mov r9, rcx;
mov rcx, rdi;
mov rdx, rsi;
{$ENDIF}
// prolog - maintain stack
mov iRDI, rdi;
mov iRSI, rsi;
// if (width <= 1) or (height <= 0) then exit;
mov r11, height;
cmp r11, 0;
jle @@exitproc;
mov r10, width;
cmp r10, 1;
jle @@exitproc;
sar r10, 1; // width div 2
test r10, r10;
jz @@lastColumn;
@@forxloop:
mov rax, r11;
xorpd xmm0, xmm0;
xor rdi, rdi;
xor rsi, rsi;
// two values at once
@@foryloop:
movapd xmm1, [r8 + rdi];
addpd xmm0, xmm1;
movapd [rcx + rsi], xmm0;
add rdi, r9;
add rsi, rdx;
dec rax;
jnz @@foryloop;
add r8, 16;
add rcx, 16;
dec r10;
jnz @@forxloop;
@@lastColumn:
mov rax, r11;
xorpd xmm0, xmm0;
// last column
@@forycolumnloop:
movsd xmm1, [r8];
addsd xmm0, xmm1;
movsd [rcx], xmm0;
add r8, r9;
add rcx, rdx;
dec rax;
jnz @@forycolumnloop;
@@exitProc:
// epilog - stack cleanup
mov rdi, iRDI;
mov rsi, iRSI;
end;
// ###############################################
// #### Differentiate
// ###############################################
procedure ASMMatrixDifferentiateRow(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
var iRBX, iRDI, iRSI : NativeInt;
{$ifdef UNIX}
width : NativeInt;
height : NativeInt;
{$ENDIF}
// rcx: dest, rdx: destlinewidth; r8: src; r9 : srclinewidth
asm
{$IFDEF UNIX}
// Linux uses a diffrent ABI -> copy over the registers so they meet with winABI
// (note that the 5th and 6th parameter are are on the stack)
// The parameters are passed in the following order:
// RDI, RSI, RDX, RCX -> mov to RCX, RDX, R8, R9
mov width, r8;
mov height, r9;
mov r8, rdx;
mov r9, rcx;
mov rcx, rdi;
mov rdx, rsi;
{$ENDIF}
// prolog - maintain stack
mov iRBX, rbx;
mov iRDI, rdi;
mov iRSI, rsi;
// if (width <= 1) or (height <= 0) then exit;
mov rbx, width;
cmp rbx, 1;
jle @@exitproc;
mov rsi, height;
cmp rsi, 0;
jle @@exitproc;
// iter := -width*sizeof(Double)
imul rbx, -8;
// prepare counters
sub rcx, rbx;
sub r8, rbx;
add rbx, 8;
@@foryloop:
mov rax, rbx;
movsd xmm1, [r8 + rax - 8];
@@forxloop:
movsd xmm0, [r8 + rax];
movsd xmm2, xmm0;
subsd xmm1, xmm0;
movsd [rcx + rax - 8], xmm0;
movsd xmm1, xmm2;
add rax, 8;
jnz @@forxloop;
add rcx, rdx;
add r8, r9;
dec rsi;
jnz @@foryloop;
@@exitProc:
// epilog - stack cleanup
mov rbx, iRBX;
mov rdi, iRDI;
mov rsi, iRSI;
end;
procedure ASMMatrixDifferentiateColumnEvenWUnaligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
var iRDI, iRSI : NativeInt;
{$ifdef UNIX}
width : NativeInt;
height : NativeInt;
{$ENDIF}
// rcx: dest, rdx: destlinewidth; r8: src; r9 : srclinewidth
asm
{$IFDEF UNIX}
// Linux uses a diffrent ABI -> copy over the registers so they meet with winABI
// (note that the 5th and 6th parameter are are on the stack)
// The parameters are passed in the following order:
// RDI, RSI, RDX, RCX -> mov to RCX, RDX, R8, R9
mov width, r8;
mov height, r9;
mov r8, rdx;
mov r9, rcx;
mov rcx, rdi;
mov rdx, rsi;
{$ENDIF}
// prolog - maintain stack
mov iRDI, rdi;
mov iRSI, rsi;
// if (width <= 0) or (height <= 1) then exit;
mov r11, height;
cmp r11, 1;
jle @@exitproc;
mov r10, width;
cmp r10, 0;
jle @@exitproc;
dec r11;
sar r10, 1; // width div 2
@@forxloop:
mov rax, r11;
xorpd xmm0, xmm0;
mov rdi, r9;
xor rsi, rsi;
movupd xmm0, [r8];
// two values at once
@@foryloop:
movupd xmm1, [r8 + rdi];
movapd xmm2, xmm1;
subpd xmm1, xmm0;
movupd [rcx + rsi], xmm1;
movapd xmm0, xmm2;
add rdi, r9;
add rsi, rdx;
dec rax;
jnz @@foryloop;
add r8, 16;
add rcx, 16;
dec r10;
jnz @@forxloop;
@@exitProc:
// epilog - stack cleanup
mov rdi, iRDI;
mov rsi, iRSI;
end;
procedure ASMMatrixDifferentiateColumnOddWUnaligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
var iRDI, iRSI : NativeInt;
{$ifdef UNIX}
width : NativeInt;
height : NativeInt;
{$ENDIF}
// rcx: dest, rdx: destlinewidth; r8: src; r9 : srclinewidth
asm
{$IFDEF UNIX}
// Linux uses a diffrent ABI -> copy over the registers so they meet with winABI
// (note that the 5th and 6th parameter are are on the stack)
// The parameters are passed in the following order:
// RDI, RSI, RDX, RCX -> mov to RCX, RDX, R8, R9
mov width, r8;
mov height, r9;
mov r8, rdx;
mov r9, rcx;
mov rcx, rdi;
mov rdx, rsi;
{$ENDIF}
// prolog - maintain stack
mov iRDI, rdi;
mov iRSI, rsi;
// if (width <= 0) or (height <= 1) then exit;
mov r11, height;
cmp r11, 1;
jle @@exitproc;
mov r10, width;
cmp r10, 0;
jle @@exitproc;
dec r11; // height - 1
sar r10, 1; // width div 2
test r10, r10;
jz @@lastColumn;
@@forxloop:
mov rax, r11;
xorpd xmm0, xmm0;
mov rdi, r9;
xor rsi, rsi;
movupd xmm0, [r8];
// two values at once
@@foryloop:
movupd xmm1, [r8 + rdi];
movapd xmm2, xmm1;
subpd xmm1, xmm0;
movupd [rcx + rsi], xmm1;
movapd xmm0, xmm2;
add rdi, r9;
add rsi, rdx;
dec rax;
jnz @@foryloop;
add r8, 16;
add rcx, 16;
dec r10;
jnz @@forxloop;
@@lastColumn:
mov rax, r11;
movsd xmm0, [r8];
add r8, r9;
// last column
@@forycolumnloop:
movsd xmm1, [r8];
movsd xmm2, xmm1;
subsd xmm1, xmm0;
movsd [rcx], xmm1;
movsd xmm0, xmm2;
add r8, r9;
add rcx, rdx;
dec rax;
jnz @@forycolumnloop;
@@exitProc:
// epilog - stack cleanup
mov rdi, iRDI;
mov rsi, iRSI;
end;
procedure ASMMatrixDifferentiateColumnEvenWAligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
var iRDI, iRSI : NativeInt;
{$ifdef UNIX}
width : NativeInt;
height : NativeInt;
{$ENDIF}
// rcx: dest, rdx: destlinewidth; r8: src; r9 : srclinewidth
asm
{$IFDEF UNIX}
// Linux uses a diffrent ABI -> copy over the registers so they meet with winABI
// (note that the 5th and 6th parameter are are on the stack)
// The parameters are passed in the following order:
// RDI, RSI, RDX, RCX -> mov to RCX, RDX, R8, R9
mov width, r8;
mov height, r9;
mov r8, rdx;
mov r9, rcx;
mov rcx, rdi;
mov rdx, rsi;
{$ENDIF}
// prolog - maintain stack
mov iRDI, rdi;
mov iRSI, rsi;
// if (width <= 0) or (height <= 1) then exit;
mov r11, height;
cmp r11, 1;
jle @@exitproc;
mov r10, width;
cmp r10, 0;
jle @@exitproc;
dec r11; // height - 1
sar r10, 1; // width div 2
@@forxloop:
mov rax, r11;
xorpd xmm0, xmm0;
mov rdi, r9;
xor rsi, rsi;
movapd xmm0, [r8];
// two values at once
@@foryloop:
movapd xmm1, [r8 + rdi];
movapd xmm2, xmm1;
subpd xmm1, xmm0;
movapd [rcx + rsi], xmm1;
movapd xmm0, xmm2;
add rdi, r9;
add rsi, rdx;
dec rax;
jnz @@foryloop;
add r8, 16;
add rcx, 16;
dec r10;
jnz @@forxloop;
@@exitProc:
// epilog - stack cleanup
mov rdi, iRDI;
mov rsi, iRSI;
end;
procedure ASMMatrixDifferentiateColumnOddWAligned(dest : PDouble; const destLineWidth : NativeInt; Src : PDouble; const srcLineWidth : NativeInt; {$ifdef UNIX}unixWidth{$ELSE}width{$endif}, {$ifdef UNIX}unixHeight{$ELSE}height{$endif} : NativeInt); {$IFDEF FPC}assembler;{$ENDIF}
var iRDI, iRSI : NativeInt;
{$ifdef UNIX}
width : NativeInt;
height : NativeInt;
{$ENDIF}
// rcx: dest, rdx: destlinewidth; r8: src; r9 : srclinewidth
asm
{$IFDEF UNIX}
// Linux uses a diffrent ABI -> copy over the registers so they meet with winABI
// (note that the 5th and 6th parameter are are on the stack)
// The parameters are passed in the following order:
// RDI, RSI, RDX, RCX -> mov to RCX, RDX, R8, R9
mov width, r8;
mov height, r9;
mov r8, rdx;
mov r9, rcx;
mov rcx, rdi;
mov rdx, rsi;
{$ENDIF}
// prolog - maintain stack
mov iRDI, rdi;
mov iRSI, rsi;
// if (width <= 0) or (height <= 1) then exit;
mov r11, height;
cmp r11, 1;
jle @@exitproc;
mov r10, width;
cmp r10, 0;
jle @@exitproc;
dec r11; // height - 1
sar r10, 1; // width div 2
test r10, r10;
jz @@lastColumn;
@@forxloop:
mov rax, r11;
xorpd xmm0, xmm0;
mov rdi, r9;
xor rsi, rsi;
movapd xmm0, [r8];
// two values at once
@@foryloop:
movapd xmm1, [r8 + rdi];
movapd xmm2, xmm1;
subpd xmm1, xmm0;
movapd [rcx + rsi], xmm1;
movapd xmm0, xmm2;
add rdi, r9;
add rsi, rdx;
dec rax;
jnz @@foryloop;
add r8, 16;
add rcx, 16;
dec r10;
jnz @@forxloop;
@@lastColumn:
mov rax, r11;
movsd xmm0, [r8];
add r8, r9;
// last column
@@forycolumnloop:
movsd xmm1, [r8];
movsd xmm2, xmm1;
subsd xmm1, xmm0;
movsd [rcx], xmm1;
movsd xmm0, xmm2;
add r8, r9;
add rcx, rdx;
dec rax;
jnz @@forycolumnloop;
@@exitProc:
// epilog - stack cleanup
mov rdi, iRDI;
mov rsi, iRSI;
end;
{$ENDIF}
end.