Index: gcc/gmp/mpn/a29k/sub_n.s |
diff --git a/gcc/gmp/mpn/a29k/sub_n.s b/gcc/gmp/mpn/a29k/sub_n.s |
deleted file mode 100644 |
index 42072a494db734a7d28213dde2b92d0eac689451..0000000000000000000000000000000000000000 |
--- a/gcc/gmp/mpn/a29k/sub_n.s |
+++ /dev/null |
@@ -1,118 +0,0 @@ |
-; 29000 mpn_sub_n -- Subtract two limb vectors of the same length > 0 and |
-; store difference in a third limb vector. |
- |
-; Copyright 1992, 1994, 2000 Free Software Foundation, Inc. |
- |
-; This file is part of the GNU MP Library. |
- |
-; The GNU MP Library is free software; you can redistribute it and/or modify |
-; it under the terms of the GNU Lesser General Public License as published by |
-; the Free Software Foundation; either version 3 of the License, or (at your |
-; option) any later version. |
- |
-; The GNU MP Library 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 Lesser General Public |
-; License for more details. |
- |
-; You should have received a copy of the GNU Lesser General Public License |
-; along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. |
- |
- |
-; INPUT PARAMETERS |
-; res_ptr lr2 |
-; s1_ptr lr3 |
-; s2_ptr lr4 |
-; size lr5 |
- |
-; We use the loadm/storem instructions and operate on chunks of 8 |
-; limbs/per iteration, until less than 8 limbs remain. |
- |
-; The 29k has no addition or subtraction instructions that doesn't |
-; affect carry, so we need to save and restore that as soon as we |
-; adjust the pointers. gr116 is used for this purpose. Note that |
-; gr116==0 means that carry should be set. |
- |
- .sect .lit,lit |
- .text |
- .align 4 |
- .global ___gmpn_sub_n |
- .word 0x60000 |
-___gmpn_sub_n: |
- srl gr117,lr5,3 |
- sub gr118,gr117,1 |
- jmpt gr118,Ltail |
- constn gr116,-1 ; init cy reg |
- sub gr117,gr117,2 ; count for jmpfdec |
- |
-; Main loop working 8 limbs/iteration. |
-Loop: mtsrim cr,(8-1) |
- loadm 0,0,gr96,lr3 |
- add lr3,lr3,32 |
- mtsrim cr,(8-1) |
- loadm 0,0,gr104,lr4 |
- add lr4,lr4,32 |
- |
- subr gr116,gr116,0 ; restore carry |
- subc gr96,gr96,gr104 |
- subc gr97,gr97,gr105 |
- subc gr98,gr98,gr106 |
- subc gr99,gr99,gr107 |
- subc gr100,gr100,gr108 |
- subc gr101,gr101,gr109 |
- subc gr102,gr102,gr110 |
- subc gr103,gr103,gr111 |
- subc gr116,gr116,gr116 ; gr116 = not(cy) |
- |
- mtsrim cr,(8-1) |
- storem 0,0,gr96,lr2 |
- jmpfdec gr117,Loop |
- add lr2,lr2,32 |
- |
-; Code for the last up-to-7 limbs. |
-; This code might look very strange, but it's hard to write it |
-; differently without major slowdown. |
- |
- and lr5,lr5,(8-1) |
-Ltail: sub gr118,lr5,1 ; count for CR |
- jmpt gr118,Lend |
- sub gr117,lr5,2 ; count for jmpfdec |
- |
- mtsr cr,gr118 |
- loadm 0,0,gr96,lr3 |
- mtsr cr,gr118 |
- loadm 0,0,gr104,lr4 |
- |
- subr gr116,gr116,0 ; restore carry |
- |
- jmpfdec gr117,L1 |
- subc gr96,gr96,gr104 |
- jmp Lstore |
- mtsr cr,gr118 |
-L1: jmpfdec gr117,L2 |
- subc gr97,gr97,gr105 |
- jmp Lstore |
- mtsr cr,gr118 |
-L2: jmpfdec gr117,L3 |
- subc gr98,gr98,gr106 |
- jmp Lstore |
- mtsr cr,gr118 |
-L3: jmpfdec gr117,L4 |
- subc gr99,gr99,gr107 |
- jmp Lstore |
- mtsr cr,gr118 |
-L4: jmpfdec gr117,L5 |
- subc gr100,gr100,gr108 |
- jmp Lstore |
- mtsr cr,gr118 |
-L5: jmpfdec gr117,L6 |
- subc gr101,gr101,gr109 |
- jmp Lstore |
- mtsr cr,gr118 |
-L6: subc gr102,gr102,gr110 |
- |
-Lstore: storem 0,0,gr96,lr2 |
- subc gr116,gr116,gr116 ; gr116 = not(cy) |
- |
-Lend: jmpi lr0 |
- add gr96,gr116,1 |