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Diffstat (limited to 'cfb/stipsprc32.s')
| -rw-r--r-- | cfb/stipsprc32.s | 291 |
1 files changed, 0 insertions, 291 deletions
diff --git a/cfb/stipsprc32.s b/cfb/stipsprc32.s deleted file mode 100644 index 89b031f5a..000000000 --- a/cfb/stipsprc32.s +++ /dev/null @@ -1,291 +0,0 @@ -/* - * $Xorg: stipsprc32.s,v 1.4 2001/02/09 02:04:39 xorgcvs Exp $ - * $XdotOrg: $ - * -Copyright 1990, 1998 The Open Group - -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. - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of The Open Group shall not be -used in advertising or otherwise to promote the sale, use or other dealings -in this Software without prior written authorization from The Open Group. - * - * Author: Keith Packard, MIT X Consortium - */ -/* $XFree86: xc/programs/Xserver/cfb/stipsprc32.s,v 1.4 2001/01/17 22:36:38 dawes Exp $ */ - -/* - * SPARC assembly code for optimized text rendering. - * - * Other stippling could be done in assembly, but the payoff is - * not nearly as large. Mostly because large areas are heavily - * optimized already. - */ - -/* not that I expect to ever see an LSB SPARC, but ... */ -#ifdef LITTLE_ENDIAN -# define BitsR sll -# define BitsL srl -# define WO(o) 3-o -# define FourBits(dest,bits) and bits, 0xf, dest -#else -# define BitsR srl -# define BitsL sll -# define WO(o) o -# define FourBits(dest,bits) srl bits, 28, dest -#endif - -/* - * cfb32StippleStack(addr, stipple, value, stride, Count, Shift) - * 4 5 6 7 16(sp) 20(sp) - * - * Apply successive 32-bit stipples starting at addr, addr+stride, ... - * - * Used for text rendering, but only when no data could be lost - * when the stipple is shifted left by Shift bits - */ -/* arguments */ -#define addr %i0 -#define stipple %i1 -#define value %i2 -#define stride %i3 -#define count %i4 -#define shift %i5 - -/* local variables */ -#define atemp %l0 -#define bits %l1 -#define lshift %l2 -#define sbase %l3 -#define stemp %l4 - -#define CASE_SIZE 5 /* case blocks are 2^5 bytes each */ -#define CASE_MASK 0x1e0 /* first case mask */ - -#define ForEachLine LY1 -#define NextLine LY2 -#define CaseBegin LY3 -#define ForEachBits LY4 -#define NextBits LY5 - -#if defined(SVR4) || defined(__ELF__) -#ifdef TETEXT -#define _cfb32StippleStack cfb32StippleStackTE -#else -#define _cfb32StippleStack cfb32StippleStack -#endif -#else -#ifdef TETEXT -#define _cfb32StippleStack _cfb32StippleStackTE -#endif -#endif - - .seg "text" - .proc 16 - .globl _cfb32StippleStack -_cfb32StippleStack: - save %sp,-64,%sp -#ifdef SHAREDCODE -1: - call 2f - nop -2: - mov %o7,sbase /* sbase = 1b(1:) */ - add sbase, CaseBegin-1b, sbase -#else /* !SHAREDCODE */ - sethi %hi(CaseBegin),sbase /* load up switch table */ - or sbase,%lo(CaseBegin),sbase -#endif /* !SHAREDCODE */ - mov 4,lshift /* compute offset within */ - sub lshift, shift, lshift /* stipple of remaining bits */ -#ifdef LITTLE_ENDIAN - inc CASE_SIZE, shift /* first shift for LSB */ -#else - inc 28-CASE_SIZE, shift /* first shift for MSB */ -#endif - /* do ... while (--count > 0); */ -ForEachLine: - ld [stipple],bits /* get stipple bits */ - mov addr,atemp /* set up for this line */ -#ifdef TETEXT - /* Terminal emulator fonts are expanded and have many 0 rows */ - tst bits - bz NextLine /* skip out early on 0 */ -#endif - add addr, stride, addr /* step for the loop */ - BitsR bits, shift, stemp /* get first bits */ - and stemp, CASE_MASK, stemp /* compute first jump */ - BitsL bits, lshift, bits /* set remaining bits */ - jmp sbase+stemp /* ... */ - tst bits - -ForEachBits: - inc 16, atemp -ForEachBits1: - FourBits(stemp, bits) /* compute jump for */ - sll stemp, CASE_SIZE, stemp /* these four bits */ - BitsL bits, 4, bits /* step for remaining bits */ - jmp sbase+stemp /* jump */ - tst bits -CaseBegin: - bnz,a ForEachBits1 /* 0 */ - inc 16, atemp -NextLine: - deccc 1, count -NextLine1: - bnz,a ForEachLine - inc 4, stipple - ret - restore - nop - - bnz ForEachBits /* 1 */ - st value, [atemp+WO(12)] - deccc 1, count - bnz,a ForEachLine - inc 4, stipple - ret - restore - nop - - bnz ForEachBits /* 2 */ - st value, [atemp+WO(8)] - deccc 1, count - bnz,a ForEachLine - inc 4, stipple - ret - restore - nop - - st value, [atemp+WO(8)] /* 3 */ - bnz ForEachBits - st value, [atemp+WO(12)] - deccc 1, count - bnz,a ForEachLine - inc 4, stipple - ret - restore - - bnz ForEachBits /* 4 */ - st value, [atemp+WO(4)] - deccc 1, count - bnz,a ForEachLine - inc 4, stipple - ret - restore - nop - - st value, [atemp+WO(4)] /* 5 */ - bnz ForEachBits - st value, [atemp+WO(12)] - deccc 1, count - bnz,a ForEachLine - inc 4, stipple - ret - restore - - st value, [atemp+WO(4)] /* 6 */ - bnz ForEachBits - st value, [atemp+WO(8)] - deccc 1, count - bnz,a ForEachLine - inc 4, stipple - ret - restore - - st value, [atemp+WO(4)] /* 7 */ - st value, [atemp+WO(8)] - bnz ForEachBits - st value, [atemp+WO(12)] - b NextLine1 - deccc 1, count - nop - nop - - bnz ForEachBits /* 8 */ - st value, [atemp+WO(0)] - deccc 1, count - bnz,a ForEachLine - inc 4, stipple - ret - restore - nop - - st value, [atemp+WO(0)] /* 9 */ - bnz ForEachBits - st value, [atemp+WO(12)] - deccc 1, count - bnz,a ForEachLine - inc 4, stipple - ret - restore - - st value, [atemp+WO(0)] /* a */ - bnz ForEachBits - st value, [atemp+WO(8)] - deccc 1, count - bnz,a ForEachLine - inc 4, stipple - ret - restore - - st value, [atemp+WO(0)] /* b */ - st value, [atemp+WO(8)] - bnz ForEachBits - st value, [atemp+WO(12)] - b NextLine1 - deccc 1, count - nop - nop - - st value, [atemp+WO(0)] /* c */ - bnz ForEachBits - st value, [atemp+WO(4)] - deccc 1, count - bnz,a ForEachLine - inc 4, stipple - ret - restore - - st value, [atemp+WO(0)] /* d */ - st value, [atemp+WO(4)] - bnz ForEachBits - st value, [atemp+WO(12)] - b NextLine1 - deccc 1, count - nop - nop - - st value, [atemp+WO(0)] /* e */ - st value, [atemp+WO(4)] - bnz ForEachBits - st value, [atemp+WO(8)] - b NextLine1 - deccc 1, count - nop - nop - - st value, [atemp+WO(0)] /* f */ - st value, [atemp+WO(4)] - st value, [atemp+WO(8)] - bnz ForEachBits - st value, [atemp+WO(12)] - deccc 1, count - bnz,a ForEachLine - inc 4, stipple - ret - restore |