/* $XConsortium: fFillSet.s,v 1.3 94/10/13 13:16:19 kaleb Exp $ */ /* $XFree86: xc/programs/Xserver/hw/xfree86/vga256/enhanced/fFillSet.s,v 3.3 1995/01/28 17:09:35 dawes Exp $ */ /* * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany. * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name of Thomas Roell not be used in * advertising or publicity pertaining to distribution of the software without * specific, written prior permission. Thomas Roell makes no representations * about the suitability of this software for any purpose. It is provided * "as is" without express or implied warranty. * * THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL THOMAS ROELL BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. * * Author: Thomas Roell, roell@informatik.tu-muenchen.de * * This file was derived from a similar X11R4 file (X386 1.1) for X11R5 * (X386 1.2) by James Tsillas. This file was further derived to its current * form by David Wexelblat (dwex@goblin.org). * * /usr/X386/mit/server/ddx/x386/cfb.banked/RCS/fFillSet.s,v 1.0 92/05/01 16:44:22 root Exp */ #include "assyntax.h" FILE("fFillSet.s") AS_BEGIN /* * * This routine implements a fast Solid Fill in GXset mode. * no segment checking is done. * * SYNTAX: * unchar * fastFillSolidGXset(pdst,fill1,fill2,hcount,count,width,widthPitch); * * (7/27/90 TR) * (4/92 JT) * (5/92 DW) */ #define pdst EBX #define lp ECX #define count EDX #define hcount EDI #define width REGOFF(28,EBP) #define widthPitch ESI #define tmp EAX #define tmpw AX #define tmpb AL #define fill1 REGOFF(12,EBP) #define fill2 REGOFF(16,EBP) SEG_TEXT ALIGNTEXT4 GLOBL GLNAME(fastFillSolidGXset) GLNAME(fastFillSolidGXset): PUSH_L (EBP) MOV_L (ESP,EBP) PUSH_L (EDI) PUSH_L (ESI) PUSH_L (EBX) MOV_L (REGOFF(8,EBP),pdst) MOV_L (REGOFF(20,EBP),hcount) MOV_L (REGOFF(24,EBP),count) MOV_L (REGOFF(32,EBP),widthPitch) OR_L (hcount,hcount) JZ (.finish) OR_L (count,count) JZ (.finish) CMP_L (CONST(3),count) JG (.blockloop) JE (.tribbleloop) CMP_L (CONST(2),count) JE (.wordloop) /* * do a fast vertical line */ ALIGNTEXT4ifNOP .byteloop: MOV_B (fill1,tmpb) AND_B (REGIND(pdst),tmpb) XOR_B (fill2,tmpb) MOV_B (tmpb,REGIND(pdst)) LEA_L (REGBID(widthPitch,pdst,1),pdst) DEC_L (hcount) JNZ (.byteloop) JMP (.finish) ALIGNTEXT4 .wordloop: MOV_W (fill1,tmpw) AND_W (REGIND(pdst),tmpw) XOR_W (fill2,tmpw) MOV_W (tmpw,REGIND(pdst)) LEA_L (REGBID(widthPitch,pdst,2),pdst) DEC_L (hcount) JNZ (.wordloop) JMP (.finish) ALIGNTEXT4 .tribbleloop: MOV_W (fill1,tmpw) AND_W (REGIND(pdst),tmpw) XOR_W (fill2,tmpw) MOV_W (tmpw,REGIND(pdst)) MOV_B (fill1,tmpb) AND_B (REGOFF(2,pdst),tmpb) XOR_B (fill2,tmpb) MOV_B (tmpb,REGOFF(2,pdst)) LEA_L (REGBID(widthPitch,pdst,3),pdst) DEC_L (hcount) JNZ (.tribbleloop) JMP (.finish) ALIGNTEXT4 .blockloop: TEST_L (CONST(1),pdst) JZ (.alignword) MOV_B (fill1,tmpb) AND_B (REGIND(pdst),tmpb) XOR_B (fill2,tmpb) MOV_B (tmpb,REGIND(pdst)) INC_L (pdst) DEC_L (count) .alignword: TEST_L (CONST(2),pdst) JZ (.aligneddword) MOV_W (fill1,tmpw) AND_W (REGIND(pdst),tmpw) XOR_W (fill2,tmpw) MOV_W (tmpw,REGIND(pdst)) LEA_L (REGOFF(2,pdst),pdst) LEA_L (REGOFF(-2,count),count) .aligneddword: MOV_L (count,lp) SHR_L (CONST(5),lp) JZ (.fixupdword) ALIGNTEXT4ifNOP .dwordloop: MOV_L (REGOFF(0,pdst),tmp) AND_L (fill1,tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(0,pdst)) MOV_L (REGOFF(4,pdst),tmp) AND_L (fill1,tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(4,pdst)) MOV_L (REGOFF(8,pdst),tmp) AND_L (fill1,tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(8,pdst)) MOV_L (REGOFF(12,pdst),tmp) AND_L (fill1,tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(12,pdst)) MOV_L (REGOFF(16,pdst),tmp) AND_L (fill1,tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(16,pdst)) MOV_L (REGOFF(20,pdst),tmp) AND_L (fill1,tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(20,pdst)) MOV_L (REGOFF(24,pdst),tmp) AND_L (fill1,tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(24,pdst)) MOV_L (REGOFF(28,pdst),tmp) AND_L (fill1,tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(28,pdst)) LEA_L (REGOFF(32,pdst),pdst) DEC_L (lp) JNZ (.dwordloop) .fixupdword: MOV_L (count,lp) AND_L (CONST(28),lp) LEA_L (REGBI(lp,pdst),pdst) MOV_L (REGDB(.jumptab1,lp),tmp) JMP (CODEPTR(tmp)) SEG_DATA ALIGNDATA4 .jumptab1: D_LONG .Lnoop, .L0, .L1, .L2, .L3, .L4, .L5, .L6 SEG_TEXT ALIGNTEXT4 .L6: MOV_L (fill1,tmp) AND_L (REGOFF(-28,pdst),tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(-28,pdst)) .L5: MOV_L (fill1,tmp) AND_L (REGOFF(-24,pdst),tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(-24,pdst)) .L4: MOV_L (fill1,tmp) AND_L (REGOFF(-20,pdst),tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(-20,pdst)) .L3: MOV_L (fill1,tmp) AND_L (REGOFF(-16,pdst),tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(-16,pdst)) .L2: MOV_L (fill1,tmp) AND_L (REGOFF(-12,pdst),tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(-12,pdst)) .L1: MOV_L (fill1,tmp) AND_L (REGOFF(-8,pdst),tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(-8,pdst)) .L0: MOV_L (fill1,tmp) AND_L (REGOFF(-4,pdst),tmp) XOR_L (fill2,tmp) MOV_L (tmp,REGOFF(-4,pdst)) .Lnoop: TEST_L (CONST(2),count) JZ (.fixupbyte) MOV_W (fill1,tmpw) AND_W (REGIND(pdst),tmpw) XOR_W (fill2,tmpw) MOV_W (tmpw,REGIND(pdst)) LEA_L (REGOFF(2,pdst),pdst) .fixupbyte: TEST_L (CONST(1),count) JZ (.enditeration) MOV_B (fill1,tmpb) AND_B (REGIND(pdst),tmpb) XOR_B (fill2,tmpb) MOV_B (tmpb,REGIND(pdst)) INC_L (pdst) .enditeration: LEA_L (REGBI(widthPitch,pdst),pdst) MOV_L (width,count) DEC_L (hcount) JNZ (.blockloop) .finish: MOV_L (pdst,EAX) LEA_L (REGOFF(-12,EBP),ESP) POP_L (EBX) POP_L (ESI) POP_L (EDI) LEAVE RET