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authorRoland McGrath <roland@gnu.org>1996-03-01 18:43:45 +0000
committerRoland McGrath <roland@gnu.org>1996-03-01 18:43:45 +0000
commit3de9f02e926f066b8ccd1cd3c1b58285d9034646 (patch)
tree5702ecee92e749971eed317b8097df0365e131f6 /sysdeps/m68k
parentf860256b2edcde37ffd62396f1506f90769de0b7 (diff)
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Updated from /src/gmp-1.937
Diffstat (limited to 'sysdeps/m68k')
-rw-r--r--sysdeps/m68k/add_n.S75
-rw-r--r--sysdeps/m68k/lshift.S150
-rw-r--r--sysdeps/m68k/m68020/addmul_1.S75
-rw-r--r--sysdeps/m68k/m68020/mul_1.S83
-rw-r--r--sysdeps/m68k/m68020/submul_1.S75
-rw-r--r--sysdeps/m68k/rshift.S149
-rw-r--r--sysdeps/m68k/sub_n.S75
7 files changed, 498 insertions, 184 deletions
diff --git a/sysdeps/m68k/add_n.S b/sysdeps/m68k/add_n.S
index ea7a4458ea..754af9f469 100644
--- a/sysdeps/m68k/add_n.S
+++ b/sysdeps/m68k/add_n.S
@@ -1,7 +1,7 @@
/* mc68020 __mpn_add_n -- Add two limb vectors of the same length > 0 and store
sum in a third limb vector.
-Copyright (C) 1992, 1994 Free Software Foundation, Inc.
+Copyright (C) 1992, 1994, 1996 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
@@ -27,50 +27,53 @@ the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
size (sp + 12)
*/
+#include "sysdep.h"
#include "asm-syntax.h"
TEXT
ALIGN
- GLOBL ___mpn_add_n
+ GLOBL C_SYMBOL_NAME(__mpn_add_n)
-LAB(___mpn_add_n)
+C_SYMBOL_NAME(__mpn_add_n:)
+PROLOG(__mpn_add_n)
/* Save used registers on the stack. */
- INSN2(move,l ,MEM_PREDEC(sp),d2)
- INSN2(move,l ,MEM_PREDEC(sp),a2)
+ movel R(d2),MEM_PREDEC(sp)
+ movel R(a2),MEM_PREDEC(sp)
/* Copy the arguments to registers. Better use movem? */
- INSN2(move,l ,a2,MEM_DISP(sp,12))
- INSN2(move,l ,a0,MEM_DISP(sp,16))
- INSN2(move,l ,a1,MEM_DISP(sp,20))
- INSN2(move,l ,d2,MEM_DISP(sp,24))
-
- INSN2(eor,w ,d2,#1)
- INSN2(lsr,l ,d2,#1)
- bcc L1
- INSN2(subq,l ,d2,#1) /* clears cy as side effect */
-
-LAB(Loop)
- INSN2(move,l ,d0,MEM_POSTINC(a0))
- INSN2(move,l ,d1,MEM_POSTINC(a1))
- INSN2(addx,l ,d0,d1)
- INSN2(move,l ,MEM_POSTINC(a2),d0)
-LAB(L1) INSN2(move,l ,d0,MEM_POSTINC(a0))
- INSN2(move,l ,d1,MEM_POSTINC(a1))
- INSN2(addx,l ,d0,d1)
- INSN2(move,l ,MEM_POSTINC(a2),d0)
-
- dbf d2,Loop /* loop until 16 lsb of %4 == -1 */
- INSN2(subx,l ,d0,d0) /* d0 <= -cy; save cy as 0 or -1 in d0 */
- INSN2(sub,l ,d2,#0x10000)
- bcs L2
- INSN2(add,l ,d0,d0) /* restore cy */
- bra Loop
-
-LAB(L2)
- INSN1(neg,l ,d0)
+ movel MEM_DISP(sp,12),R(a2)
+ movel MEM_DISP(sp,16),R(a0)
+ movel MEM_DISP(sp,20),R(a1)
+ movel MEM_DISP(sp,24),R(d2)
+
+ eorw #1,R(d2)
+ lsrl #1,R(d2)
+ bcc L(L1)
+ subql #1,R(d2) /* clears cy as side effect */
+
+L(Loop:)
+ movel MEM_POSTINC(a0),R(d0)
+ movel MEM_POSTINC(a1),R(d1)
+ addxl R(d1),R(d0)
+ movel R(d0),MEM_POSTINC(a2)
+L(L1:) movel MEM_POSTINC(a0),R(d0)
+ movel MEM_POSTINC(a1),R(d1)
+ addxl R(d1),R(d0)
+ movel R(d0),MEM_POSTINC(a2)
+
+ dbf R(d2),L(Loop) /* loop until 16 lsb of %4 == -1 */
+ subxl R(d0),R(d0) /* d0 <= -cy; save cy as 0 or -1 in d0 */
+ subl #0x10000,R(d2)
+ bcs L(L2)
+ addl R(d0),R(d0) /* restore cy */
+ bra L(Loop)
+
+L(L2:)
+ negl R(d0)
/* Restore used registers from stack frame. */
- INSN2(move,l ,a2,MEM_POSTINC(sp))
- INSN2(move,l ,d2,MEM_POSTINC(sp))
+ movel MEM_POSTINC(sp),R(a2)
+ movel MEM_POSTINC(sp),R(d2)
rts
+EPILOG(__mpn_add_n)
diff --git a/sysdeps/m68k/lshift.S b/sysdeps/m68k/lshift.S
new file mode 100644
index 0000000000..c58594a01b
--- /dev/null
+++ b/sysdeps/m68k/lshift.S
@@ -0,0 +1,150 @@
+/* mc68020 __mpn_lshift -- Shift left a low-level natural-number integer.
+
+Copyright (C) 1996 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 Library General Public License as published by
+the Free Software Foundation; either version 2 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 Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/*
+ INPUT PARAMETERS
+ res_ptr (sp + 4)
+ s_ptr (sp + 8)
+ s_size (sp + 16)
+ cnt (sp + 12)
+*/
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+#define res_ptr a1
+#define s_ptr a0
+#define s_size d6
+#define cnt d4
+
+ TEXT
+ ALIGN
+ GLOBL C_SYMBOL_NAME(__mpn_lshift)
+
+C_SYMBOL_NAME(__mpn_lshift:)
+PROLOG(__mpn_lshift)
+
+/* Save used registers on the stack. */
+ moveml R(d2)-R(d6)/R(a2),MEM_PREDEC(sp)
+
+/* Copy the arguments to registers. */
+ movel MEM_DISP(sp,28),R(res_ptr)
+ movel MEM_DISP(sp,32),R(s_ptr)
+ movel MEM_DISP(sp,36),R(s_size)
+ movel MEM_DISP(sp,40),R(cnt)
+
+ moveql #1,R(d5)
+ cmpl R(d5),R(cnt)
+ bne L(Lnormal)
+ cmpl R(s_ptr),R(res_ptr)
+ bls L(Lspecial) /* jump if s_ptr >= res_ptr */
+#if (defined (__mc68020__) || defined (__NeXT__) || defined(mc68020))
+ lea MEM_INDX1(s_ptr,s_size,l,4),R(a2)
+#else /* not mc68020 */
+ movel R(s_size),R(d0)
+ asll #2,R(d0)
+ lea MEM_INDX(s_ptr,d0,l),R(a2)
+#endif
+ cmpl R(res_ptr),R(a2)
+ bls L(Lspecial) /* jump if res_ptr >= s_ptr + s_size */
+
+L(Lnormal:)
+ moveql #32,R(d5)
+ subl R(cnt),R(d5)
+
+#if (defined (__mc68020__) || defined (__NeXT__) || defined(mc68020))
+ lea MEM_INDX1(s_ptr,s_size,l,4),R(s_ptr)
+ lea MEM_INDX1(res_ptr,s_size,l,4),R(res_ptr)
+#else /* not mc68000 */
+ movel R(s_size),R(d0)
+ asll #2,R(d0)
+ addl R(s_size),R(s_ptr)
+ addl R(s_size),R(res_ptr)
+#endif
+ movel MEM_PREDEC(s_ptr),R(d2)
+ movel R(d2),R(d0)
+ lsrl R(d5),R(d0) /* compute carry limb */
+
+ lsll R(cnt),R(d2)
+ movel R(d2),R(d1)
+ subql #1,R(s_size)
+ beq L(Lend)
+ lsrl #1,R(s_size)
+ bcs L(L1)
+ subql #1,R(s_size)
+
+L(Loop:)
+ movel MEM_PREDEC(s_ptr),R(d2)
+ movel R(d2),R(d3)
+ lsrl R(d5),R(d3)
+ orl R(d3),R(d1)
+ movel R(d1),MEM_PREDEC(res_ptr)
+ lsll R(cnt),R(d2)
+L(L1:)
+ movel MEM_PREDEC(s_ptr),R(d1)
+ movel R(d1),R(d3)
+ lsrl R(d5),R(d3)
+ orl R(d3),R(d2)
+ movel R(d2),MEM_PREDEC(res_ptr)
+ lsll R(cnt),R(d1)
+
+ dbf R(s_size),L(Loop)
+ subl #0x10000,R(s_size)
+ bcc L(Loop)
+
+L(Lend:)
+ movel R(d1),MEM_PREDEC(res_ptr) /* store least significant limb */
+
+/* Restore used registers from stack frame. */
+ moveml MEM_POSTINC(sp),R(d2)-R(d6)/R(a2)
+ rts
+
+/* We loop from least significant end of the arrays, which is only
+ permissable if the source and destination don't overlap, since the
+ function is documented to work for overlapping source and destination. */
+
+L(Lspecial:)
+ clrl R(d0) /* initialize carry */
+ eorw #1,R(s_size)
+ lsrl #1,R(s_size)
+ bcc L(LL1)
+ subql #1,R(s_size)
+
+L(LLoop:)
+ movel MEM_POSTINC(s_ptr),R(d2)
+ addxl R(d2),R(d2)
+ movel R(d2),MEM_POSTINC(res_ptr)
+L(LL1:)
+ movel MEM_POSTINC(s_ptr),R(d2)
+ addxl R(d2),R(d2)
+ movel R(d2),MEM_POSTINC(res_ptr)
+
+ dbf R(s_size),L(LLoop)
+ addxl R(d0),R(d0) /* save cy in lsb */
+ subl #0x10000,R(s_size)
+ bcs L(LLend)
+ lsrl #1,R(d0) /* restore cy */
+ bra L(LLoop)
+
+L(LLend:)
+/* Restore used registers from stack frame. */
+ moveml MEM_POSTINC(sp),R(d2)-R(d6)/R(a2)
+ rts
+EPILOG(__mpn_lshift)
diff --git a/sysdeps/m68k/m68020/addmul_1.S b/sysdeps/m68k/m68020/addmul_1.S
index 3f244c40b4..169f1135be 100644
--- a/sysdeps/m68k/m68020/addmul_1.S
+++ b/sysdeps/m68k/m68020/addmul_1.S
@@ -1,7 +1,7 @@
/* mc68020 __mpn_addmul_1 -- Multiply a limb vector with a limb and add
the result to a second limb vector.
-Copyright (C) 1992, 1994 Free Software Foundation, Inc.
+Copyright (C) 1992, 1994, 1996 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
@@ -23,58 +23,61 @@ the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
INPUT PARAMETERS
res_ptr (sp + 4)
s1_ptr (sp + 8)
- size (sp + 12)
+ s1_size (sp + 12)
s2_limb (sp + 16)
*/
+#include "sysdep.h"
#include "asm-syntax.h"
TEXT
ALIGN
- GLOBL ___mpn_addmul_1
+ GLOBL C_SYMBOL_NAME(__mpn_addmul_1)
-LAB(___mpn_addmul_1)
+C_SYMBOL_NAME(__mpn_addmul_1:)
+PROLOG(__mpn_addmul_1)
#define res_ptr a0
#define s1_ptr a1
-#define size d2
+#define s1_size d2
#define s2_limb d4
/* Save used registers on the stack. */
- INSN2(movem,l ,MEM_PREDEC(sp),d2-d5)
+ moveml R(d2)-R(d5),MEM_PREDEC(sp)
/* Copy the arguments to registers. Better use movem? */
- INSN2(move,l ,res_ptr,MEM_DISP(sp,20))
- INSN2(move,l ,s1_ptr,MEM_DISP(sp,24))
- INSN2(move,l ,size,MEM_DISP(sp,28))
- INSN2(move,l ,s2_limb,MEM_DISP(sp,32))
-
- INSN2(eor,w ,size,#1)
- INSN1(clr,l ,d1)
- INSN1(clr,l ,d5)
- INSN2(lsr,l ,size,#1)
- bcc L1
- INSN2(subq,l ,size,#1)
- INSN2(sub,l ,d0,d0) /* (d0,cy) <= (0,0) */
-
-LAB(Loop)
- INSN2(move,l ,d3,MEM_POSTINC(s1_ptr))
- INSN2(mulu,l ,d1:d3,s2_limb)
- INSN2(addx,l ,d3,d0)
- INSN2(addx,l ,d1,d5)
- INSN2(add,l ,MEM_POSTINC(res_ptr),d3)
-LAB(L1) INSN2(move,l ,d3,MEM_POSTINC(s1_ptr))
- INSN2(mulu,l ,d0:d3,s2_limb)
- INSN2(addx,l ,d3,d1)
- INSN2(addx,l ,d0,d5)
- INSN2(add,l ,MEM_POSTINC(res_ptr),d3)
-
- dbf size,Loop
- INSN2(addx,l ,d0,d5)
- INSN2(sub,l ,size,#0x10000)
- bcc Loop
+ movel MEM_DISP(sp,20),R(res_ptr)
+ movel MEM_DISP(sp,24),R(s1_ptr)
+ movel MEM_DISP(sp,28),R(s1_size)
+ movel MEM_DISP(sp,32),R(s2_limb)
+
+ eorw #1,R(s1_size)
+ clrl R(d1)
+ clrl R(d5)
+ lsrl #1,R(s1_size)
+ bcc L(L1)
+ subql #1,R(s1_size)
+ subl R(d0),R(d0) /* (d0,cy) <= (0,0) */
+
+L(Loop:)
+ movel MEM_POSTINC(s1_ptr),R(d3)
+ mulul R(s2_limb),R(d1):R(d3)
+ addxl R(d0),R(d3)
+ addxl R(d5),R(d1)
+ addl R(d3),MEM_POSTINC(res_ptr)
+L(L1:) movel MEM_POSTINC(s1_ptr),R(d3)
+ mulul R(s2_limb),R(d0):R(d3)
+ addxl R(d1),R(d3)
+ addxl R(d5),R(d0)
+ addl R(d3),MEM_POSTINC(res_ptr)
+
+ dbf R(s1_size),L(Loop)
+ addxl R(d5),R(d0)
+ subl #0x10000,R(s1_size)
+ bcc L(Loop)
/* Restore used registers from stack frame. */
- INSN2(movem,l ,d2-d5,MEM_POSTINC(sp))
+ moveml MEM_POSTINC(sp),R(d2)-R(d5)
rts
+EPILOG(__mpn_addmul_1)
diff --git a/sysdeps/m68k/m68020/mul_1.S b/sysdeps/m68k/m68020/mul_1.S
index 548ca0091b..4db1ccac25 100644
--- a/sysdeps/m68k/m68020/mul_1.S
+++ b/sysdeps/m68k/m68020/mul_1.S
@@ -1,7 +1,7 @@
/* mc68020 __mpn_mul_1 -- Multiply a limb vector with a limb and store
the result in a second limb vector.
-Copyright (C) 1992, 1994 Free Software Foundation, Inc.
+Copyright (C) 1992, 1994, 1996 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
@@ -23,65 +23,68 @@ the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
INPUT PARAMETERS
res_ptr (sp + 4)
s1_ptr (sp + 8)
- size (sp + 12)
+ s1_size (sp + 12)
s2_limb (sp + 16)
*/
+#include "sysdep.h"
#include "asm-syntax.h"
TEXT
ALIGN
- GLOBL ___mpn_mul_1
+ GLOBL C_SYMBOL_NAME(__mpn_mul_1)
-LAB(___mpn_mul_1)
+C_SYMBOL_NAME(__mpn_mul_1:)
+PROLOG(__mpn_mul_1)
#define res_ptr a0
#define s1_ptr a1
-#define size d2
+#define s1_size d2
#define s2_limb d4
/* Save used registers on the stack. */
- INSN2(movem,l ,MEM_PREDEC(sp),d2-d4)
+ moveml R(d2)-R(d4),MEM_PREDEC(sp)
#if 0
- INSN2(move,l ,MEM_PREDEC(sp),d2)
- INSN2(move,l ,MEM_PREDEC(sp),d3)
- INSN2(move,l ,MEM_PREDEC(sp),d4)
+ movel R(d2),MEM_PREDEC(sp)
+ movel R(d3),MEM_PREDEC(sp)
+ movel R(d4),MEM_PREDEC(sp)
#endif
/* Copy the arguments to registers. Better use movem? */
- INSN2(move,l ,res_ptr,MEM_DISP(sp,16))
- INSN2(move,l ,s1_ptr,MEM_DISP(sp,20))
- INSN2(move,l ,size,MEM_DISP(sp,24))
- INSN2(move,l ,s2_limb,MEM_DISP(sp,28))
-
- INSN2(eor,w ,size,#1)
- INSN1(clr,l ,d1)
- INSN2(lsr,l ,size,#1)
- bcc L1
- INSN2(subq,l ,size,#1)
- INSN2(sub,l ,d0,d0) /* (d0,cy) <= (0,0) */
-
-LAB(Loop)
- INSN2(move,l ,d3,MEM_POSTINC(s1_ptr))
- INSN2(mulu,l ,d1:d3,s2_limb)
- INSN2(addx,l ,d3,d0)
- INSN2(move,l ,MEM_POSTINC(res_ptr),d3)
-LAB(L1) INSN2(move,l ,d3,MEM_POSTINC(s1_ptr))
- INSN2(mulu,l ,d0:d3,s2_limb)
- INSN2(addx,l ,d3,d1)
- INSN2(move,l ,MEM_POSTINC(res_ptr),d3)
-
- dbf size,Loop
- INSN1(clr,l ,d3)
- INSN2(addx,l ,d0,d3)
- INSN2(sub,l ,size,#0x10000)
- bcc Loop
+ movel MEM_DISP(sp,16),R(res_ptr)
+ movel MEM_DISP(sp,20),R(s1_ptr)
+ movel MEM_DISP(sp,24),R(s1_size)
+ movel MEM_DISP(sp,28),R(s2_limb)
+
+ eorw #1,R(s1_size)
+ clrl R(d1)
+ lsrl #1,R(s1_size)
+ bcc L(L1)
+ subql #1,R(s1_size)
+ subl R(d0),R(d0) /* (d0,cy) <= (0,0) */
+
+L(Loop:)
+ movel MEM_POSTINC(s1_ptr),R(d3)
+ mulul R(s2_limb),R(d1):R(d3)
+ addxl R(d0),R(d3)
+ movel R(d3),MEM_POSTINC(res_ptr)
+L(L1:) movel MEM_POSTINC(s1_ptr),R(d3)
+ mulul R(s2_limb),R(d0):R(d3)
+ addxl R(d1),R(d3)
+ movel R(d3),MEM_POSTINC(res_ptr)
+
+ dbf R(s1_size),L(Loop)
+ clrl R(d3)
+ addxl R(d3),R(d0)
+ subl #0x10000,R(s1_size)
+ bcc L(Loop)
/* Restore used registers from stack frame. */
- INSN2(movem,l ,d2-d4,MEM_POSTINC(sp))
+ moveml MEM_POSTINC(sp),R(d2)-R(d4)
#if 0
- INSN2(move,l ,d4,MEM_POSTINC(sp))
- INSN2(move,l ,d3,MEM_POSTINC(sp))
- INSN2(move,l ,d2,MEM_POSTINC(sp))
+ movel MEM_POSTINC(sp),R(d4)
+ movel MEM_POSTINC(sp),R(d3)
+ movel MEM_POSTINC(sp),R(d2)
#endif
rts
+EPILOG(__mpn_mul_1)
diff --git a/sysdeps/m68k/m68020/submul_1.S b/sysdeps/m68k/m68020/submul_1.S
index ef7f39de7a..cf30029b2f 100644
--- a/sysdeps/m68k/m68020/submul_1.S
+++ b/sysdeps/m68k/m68020/submul_1.S
@@ -1,7 +1,7 @@
/* mc68020 __mpn_submul_1 -- Multiply a limb vector with a limb and subtract
the result from a second limb vector.
-Copyright (C) 1992, 1994 Free Software Foundation, Inc.
+Copyright (C) 1992, 1994, 1996 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
@@ -23,58 +23,61 @@ the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
INPUT PARAMETERS
res_ptr (sp + 4)
s1_ptr (sp + 8)
- size (sp + 12)
+ s1_size (sp + 12)
s2_limb (sp + 16)
*/
+#include "sysdep.h"
#include "asm-syntax.h"
TEXT
ALIGN
- GLOBL ___mpn_submul_1
+ GLOBL C_SYMBOL_NAME(__mpn_submul_1)
-LAB(___mpn_submul_1)
+C_SYMBOL_NAME(__mpn_submul_1:)
+PROLOG(__mpn_submul_1)
#define res_ptr a0
#define s1_ptr a1
-#define size d2
+#define s1_size d2
#define s2_limb d4
/* Save used registers on the stack. */
- INSN2(movem,l ,MEM_PREDEC(sp),d2-d5)
+ moveml R(d2)-R(d5),MEM_PREDEC(sp)
/* Copy the arguments to registers. Better use movem? */
- INSN2(move,l ,res_ptr,MEM_DISP(sp,20))
- INSN2(move,l ,s1_ptr,MEM_DISP(sp,24))
- INSN2(move,l ,size,MEM_DISP(sp,28))
- INSN2(move,l ,s2_limb,MEM_DISP(sp,32))
-
- INSN2(eor,w ,size,#1)
- INSN1(clr,l ,d1)
- INSN1(clr,l ,d5)
- INSN2(lsr,l ,size,#1)
- bcc L1
- INSN2(subq,l ,size,#1)
- INSN2(sub,l ,d0,d0) /* (d0,cy) <= (0,0) */
-
-LAB(Loop)
- INSN2(move,l ,d3,MEM_POSTINC(s1_ptr))
- INSN2(mulu,l ,d1:d3,s2_limb)
- INSN2(addx,l ,d3,d0)
- INSN2(addx,l ,d1,d5)
- INSN2(sub,l ,MEM_POSTINC(res_ptr),d3)
-LAB(L1) INSN2(move,l ,d3,MEM_POSTINC(s1_ptr))
- INSN2(mulu,l ,d0:d3,s2_limb)
- INSN2(addx,l ,d3,d1)
- INSN2(addx,l ,d0,d5)
- INSN2(sub,l ,MEM_POSTINC(res_ptr),d3)
-
- dbf size,Loop
- INSN2(addx,l ,d0,d5)
- INSN2(sub,l ,size,#0x10000)
- bcc Loop
+ movel MEM_DISP(sp,20),R(res_ptr)
+ movel MEM_DISP(sp,24),R(s1_ptr)
+ movel MEM_DISP(sp,28),R(s1_size)
+ movel MEM_DISP(sp,32),R(s2_limb)
+
+ eorw #1,R(s1_size)
+ clrl R(d1)
+ clrl R(d5)
+ lsrl #1,R(s1_size)
+ bcc L(L1)
+ subql #1,R(s1_size)
+ subl R(d0),R(d0) /* (d0,cy) <= (0,0) */
+
+L(Loop:)
+ movel MEM_POSTINC(s1_ptr),R(d3)
+ mulul R(s2_limb),R(d1):R(d3)
+ addxl R(d0),R(d3)
+ addxl R(d5),R(d1)
+ subl R(d3),MEM_POSTINC(res_ptr)
+L(L1:) movel MEM_POSTINC(s1_ptr),R(d3)
+ mulul R(s2_limb),R(d0):R(d3)
+ addxl R(d1),R(d3)
+ addxl R(d5),R(d0)
+ subl R(d3),MEM_POSTINC(res_ptr)
+
+ dbf R(s1_size),L(Loop)
+ addxl R(d5),R(d0)
+ subl #0x10000,R(s1_size)
+ bcc L(Loop)
/* Restore used registers from stack frame. */
- INSN2(movem,l ,d2-d5,MEM_POSTINC(sp))
+ moveml MEM_POSTINC(sp),R(d2)-R(d5)
rts
+EPILOG(__mpn_submul_1)
diff --git a/sysdeps/m68k/rshift.S b/sysdeps/m68k/rshift.S
new file mode 100644
index 0000000000..494dfcbeab
--- /dev/null
+++ b/sysdeps/m68k/rshift.S
@@ -0,0 +1,149 @@
+/* mc68020 __mpn_rshift -- Shift right a low-level natural-number integer.
+
+Copyright (C) 1996 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 Library General Public License as published by
+the Free Software Foundation; either version 2 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 Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/*
+ INPUT PARAMETERS
+ res_ptr (sp + 4)
+ s_ptr (sp + 8)
+ s_size (sp + 16)
+ cnt (sp + 12)
+*/
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+#define res_ptr a1
+#define s_ptr a0
+#define s_size d6
+#define cnt d4
+
+ TEXT
+ ALIGN
+ GLOBL C_SYMBOL_NAME(__mpn_rshift)
+
+C_SYMBOL_NAME(__mpn_rshift:)
+PROLOG(__mpn_rshift)
+/* Save used registers on the stack. */
+ moveml R(d2)-R(d6)/R(a2),MEM_PREDEC(sp)
+
+/* Copy the arguments to registers. */
+ movel MEM_DISP(sp,28),R(res_ptr)
+ movel MEM_DISP(sp,32),R(s_ptr)
+ movel MEM_DISP(sp,36),R(s_size)
+ movel MEM_DISP(sp,40),R(cnt)
+
+ moveql #1,R(d5)
+ cmpl R(d5),R(cnt)
+ bne L(Lnormal)
+ cmpl R(res_ptr),R(s_ptr)
+ bls L(Lspecial) /* jump if res_ptr >= s_ptr */
+#if (defined (__mc68020__) || defined (__NeXT__) || defined(mc68020))
+ lea MEM_INDX1(res_ptr,s_size,l,4),R(a2)
+#else /* not mc68020 */
+ movel R(s_size),R(d0)
+ asll #2,R(d0)
+ lea MEM_INDX(res_ptr,d0,l),R(a2)
+#endif
+ cmpl R(s_ptr),R(a2)
+ bls L(Lspecial) /* jump if s_ptr >= res_ptr + s_size */
+
+L(Lnormal:)
+ moveql #32,R(d5)
+ subl R(cnt),R(d5)
+ movel MEM_POSTINC(s_ptr),R(d2)
+ movel R(d2),R(d0)
+ lsll R(d5),R(d0) /* compute carry limb */
+
+ lsrl R(cnt),R(d2)
+ movel R(d2),R(d1)
+ subql #1,R(s_size)
+ beq L(Lend)
+ lsrl #1,R(s_size)
+ bcs L(L1)
+ subql #1,R(s_size)
+
+L(Loop:)
+ movel MEM_POSTINC(s_ptr),R(d2)
+ movel R(d2),R(d3)
+ lsll R(d5),R(d3)
+ orl R(d3),R(d1)
+ movel R(d1),MEM_POSTINC(res_ptr)
+ lsrl R(cnt),R(d2)
+L(L1:)
+ movel MEM_POSTINC(s_ptr),R(d1)
+ movel R(d1),R(d3)
+ lsll R(d5),R(d3)
+ orl R(d3),R(d2)
+ movel R(d2),MEM_POSTINC(res_ptr)
+ lsrl R(cnt),R(d1)
+
+ dbf R(s_size),L(Loop)
+ subl #0x10000,R(s_size)
+ bcc L(Loop)
+
+L(Lend:)
+ movel R(d1),MEM(res_ptr) /* store most significant limb */
+
+/* Restore used registers from stack frame. */
+ moveml MEM_POSTINC(sp),R(d2)-R(d6)/R(a2)
+ rts
+
+/* We loop from most significant end of the arrays, which is only
+ permissable if the source and destination don't overlap, since the
+ function is documented to work for overlapping source and destination. */
+
+L(Lspecial:)
+#if (defined (__mc68020__) || defined (__NeXT__) || defined(mc68020))
+ lea MEM_INDX1(s_ptr,s_size,l,4),R(s_ptr)
+ lea MEM_INDX1(res_ptr,s_size,l,4),R(res_ptr)
+#else /* not mc68000 */
+ movel R(s_size),R(d0)
+ asll #2,R(d0)
+ addl R(s_size),R(s_ptr)
+ addl R(s_size),R(res_ptr)
+#endif
+
+ clrl R(d0) /* initialize carry */
+ eorw #1,R(s_size)
+ lsrl #1,R(s_size)
+ bcc L(LL1)
+ subql #1,R(s_size)
+
+L(LLoop:)
+ movel MEM_PREDEC(s_ptr),R(d2)
+ roxrl #1,R(d2)
+ movel R(d2),MEM_PREDEC(res_ptr)
+L(LL1:)
+ movel MEM_PREDEC(s_ptr),R(d2)
+ roxrl #1,R(d2)
+ movel R(d2),MEM_PREDEC(res_ptr)
+
+ dbf R(s_size),L(LLoop)
+ roxrl #1,R(d0) /* save cy in msb */
+ subl #0x10000,R(s_size)
+ bcs L(LLend)
+ addl R(d0),R(d0) /* restore cy */
+ bra L(LLoop)
+
+L(LLend:)
+/* Restore used registers from stack frame. */
+ moveml MEM_POSTINC(sp),R(d2)-R(d6)/R(a2)
+ rts
+EPILOG(__mpn_rshift)
diff --git a/sysdeps/m68k/sub_n.S b/sysdeps/m68k/sub_n.S
index 19f0ec1568..39f5161176 100644
--- a/sysdeps/m68k/sub_n.S
+++ b/sysdeps/m68k/sub_n.S
@@ -1,7 +1,7 @@
/* mc68020 __mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
store difference in a third limb vector.
-Copyright (C) 1992, 1994 Free Software Foundation, Inc.
+Copyright (C) 1992, 1994, 1996 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
@@ -27,50 +27,53 @@ the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
size (sp + 12)
*/
+#include "sysdep.h"
#include "asm-syntax.h"
TEXT
ALIGN
- GLOBL ___mpn_sub_n
+ GLOBL C_SYMBOL_NAME(__mpn_sub_n)
-LAB(___mpn_sub_n)
+C_SYMBOL_NAME(__mpn_sub_n:)
+PROLOG(__mpn_sub_n)
/* Save used registers on the stack. */
- INSN2(move,l ,MEM_PREDEC(sp),d2)
- INSN2(move,l ,MEM_PREDEC(sp),a2)
+ movel R(d2),MEM_PREDEC(sp)
+ movel R(a2),MEM_PREDEC(sp)
/* Copy the arguments to registers. Better use movem? */
- INSN2(move,l ,a2,MEM_DISP(sp,12))
- INSN2(move,l ,a0,MEM_DISP(sp,16))
- INSN2(move,l ,a1,MEM_DISP(sp,20))
- INSN2(move,l ,d2,MEM_DISP(sp,24))
-
- INSN2(eor,w ,d2,#1)
- INSN2(lsr,l ,d2,#1)
- bcc L1
- INSN2(subq,l ,d2,#1) /* clears cy as side effect */
-
-LAB(Loop)
- INSN2(move,l ,d0,MEM_POSTINC(a0))
- INSN2(move,l ,d1,MEM_POSTINC(a1))
- INSN2(subx,l ,d0,d1)
- INSN2(move,l ,MEM_POSTINC(a2),d0)
-LAB(L1) INSN2(move,l ,d0,MEM_POSTINC(a0))
- INSN2(move,l ,d1,MEM_POSTINC(a1))
- INSN2(subx,l ,d0,d1)
- INSN2(move,l ,MEM_POSTINC(a2),d0)
-
- dbf d2,Loop /* loop until 16 lsb of %4 == -1 */
- INSN2(subx,l ,d0,d0) /* d0 <= -cy; save cy as 0 or -1 in d0 */
- INSN2(sub,l ,d2,#0x10000)
- bcs L2
- INSN2(add,l ,d0,d0) /* restore cy */
- bra Loop
-
-LAB(L2)
- INSN1(neg,l ,d0)
+ movel MEM_DISP(sp,12),R(a2)
+ movel MEM_DISP(sp,16),R(a0)
+ movel MEM_DISP(sp,20),R(a1)
+ movel MEM_DISP(sp,24),R(d2)
+
+ eorw #1,R(d2)
+ lsrl #1,R(d2)
+ bcc L(L1)
+ subql #1,R(d2) /* clears cy as side effect */
+
+L(Loop:)
+ movel MEM_POSTINC(a0),R(d0)
+ movel MEM_POSTINC(a1),R(d1)
+ subxl R(d1),R(d0)
+ movel R(d0),MEM_POSTINC(a2)
+L(L1:) movel MEM_POSTINC(a0),R(d0)
+ movel MEM_POSTINC(a1),R(d1)
+ subxl R(d1),R(d0)
+ movel R(d0),MEM_POSTINC(a2)
+
+ dbf R(d2),L(Loop) /* loop until 16 lsb of %4 == -1 */
+ subxl R(d0),R(d0) /* d0 <= -cy; save cy as 0 or -1 in d0 */
+ subl #0x10000,R(d2)
+ bcs L(L2)
+ addl R(d0),R(d0) /* restore cy */
+ bra L(Loop)
+
+L(L2:)
+ negl R(d0)
/* Restore used registers from stack frame. */
- INSN2(move,l ,a2,MEM_POSTINC(sp))
- INSN2(move,l ,d2,MEM_POSTINC(sp))
+ movel MEM_POSTINC(sp),R(a2)
+ movel MEM_POSTINC(sp),R(d2)
rts
+EPILOG(__mpn_sub_n)