tlibmp: no text jump labels for darwin - plan9port - [fork] Plan 9 from user space
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---
(DIR) commit 88cf5927234499472ad3910aff63803f85fba40b
(DIR) parent 50808670fce561a500eb46267f7da10bddad3524
(HTM) Author: Russ Cox <rsc@swtch.com>
Date: Mon, 5 Nov 2007 12:27:49 -0500
libmp: no text jump labels for darwin
Diffstat:
M src/libmp/386/mpdigdiv-Darwin.s | 12 ++++++------
M src/libmp/386/mpvecadd-Darwin.s | 28 ++++++++++++++--------------
M src/libmp/386/mpvecdigmuladd-Darwi… | 13 ++++++-------
M src/libmp/386/mpvecdigmulsub-Darwi… | 21 ++++++++++-----------
M src/libmp/386/mpvecsub-Darwin.s | 18 +++++++++---------
5 files changed, 45 insertions(+), 47 deletions(-)
---
(DIR) diff --git a/src/libmp/386/mpdigdiv-Darwin.s b/src/libmp/386/mpdigdiv-Darwin.s
t@@ -1,5 +1,5 @@
.text
-.p2align 2,0x90
+
.globl _mpdigdiv
_mpdigdiv:
/* Prelude */
t@@ -15,19 +15,19 @@ _mpdigdiv:
xorl %ecx, %ecx
cmpl %ebx, %edx /* dividend >= 2^32 * divisor */
- jae divovfl
+ jae 2f
cmpl %ecx, %ebx /* divisor == 1 */
- je divovfl
+ je 2f
divl %ebx /* AX = DX:AX/BX */
movl %eax, (%ebp)
-done:
+1:
/* Postlude */
popl %ebx
popl %ebp
ret
/* return all 1's */
-divovfl:
+2:
notl %ecx
movl %ecx, (%ebp)
- jmp done
+ jmp 1b
(DIR) diff --git a/src/libmp/386/mpvecadd-Darwin.s b/src/libmp/386/mpvecadd-Darwin.s
t@@ -26,42 +26,42 @@ _mpvecadd:
/* skip addition if b is zero */
testl %ecx,%ecx
- je _add1
+ je 2f
/* sum[0:blen-1],carry = a[0:blen-1] + b[0:blen-1] */
-_addloop1:
+1:
movl (%esi, %ebp, 4), %eax
adcl (%ebx, %ebp, 4), %eax
movl %eax, (%edi, %ebp, 4)
incl %ebp
- loop _addloop1
+ loop 1b
-_add1:
+2:
/* jump if alen > blen */
incl %edx
movl %edx, %ecx
- loop _addloop2
+ loop 5f
/* sum[alen] = carry */
-_addend:
- jb _addcarry
+3:
+ jb 4f
movl $0, (%edi, %ebp, 4)
- jmp done
+ jmp 6f
-_addcarry:
+4:
movl $1, (%edi, %ebp, 4)
- jmp done
+ jmp 6f
/* sum[blen:alen-1],carry = a[blen:alen-1] + 0 */
-_addloop2:
+5:
movl (%esi, %ebp, 4),%eax
adcl $0, %eax
movl %eax, (%edi, %ebp, 4)
incl %ebp
- loop _addloop2
- jmp _addend
+ loop 5b
+ jmp 3b
-done:
+6:
/* Postlude */
popl %edi
popl %esi
(DIR) diff --git a/src/libmp/386/mpvecdigmuladd-Darwin.s b/src/libmp/386/mpvecdigmuladd-Darwin.s
t@@ -22,7 +22,6 @@
*/
.text
-.p2align 2,0x90
.globl _mpvecdigmuladd
_mpvecdigmuladd:
/* Prelude */
t@@ -42,20 +41,20 @@ _mpvecdigmuladd:
addl %ecx, %esi /* SI = b + n */
addl %ecx, %edi /* DI = p + n */
xorl %ecx, %ecx
-_muladdloop:
+1:
movl (%esi, %ebp, 4), %eax /* lo = b[i] */
mull %ebx /* hi, lo = b[i] * m */
addl %ecx,%eax /* lo += oldhi */
- jae _muladdnocarry1
+ jae 2f
incl %edx /* hi += carry */
-_muladdnocarry1:
+2:
addl %eax, (%edi, %ebp, 4) /* p[i] += lo */
- jae _muladdnocarry2
+ jae 3f
incl %edx /* hi += carry */
-_muladdnocarry2:
+3:
movl %edx, %ecx /* oldhi = hi */
incl %ebp /* i++ */
- jnz _muladdloop
+ jnz 1b
xorl %eax, %eax
addl %ecx, (%edi, %ebp, 4) /* p[n] + oldhi */
adcl %eax, %eax /* return carry out of p[n] */
(DIR) diff --git a/src/libmp/386/mpvecdigmulsub-Darwin.s b/src/libmp/386/mpvecdigmulsub-Darwin.s
t@@ -23,7 +23,6 @@
*/
.text
-.p2align 2,0x90
.globl _mpvecdigmulsub
_mpvecdigmulsub:
/* Prelude */
t@@ -39,28 +38,28 @@ _mpvecdigmulsub:
movl 12(%ebp), %edi /* p */
xorl %ebp, %ebp
pushl %ebp
-_mulsubloop:
+1:
movl (%esi, %ebp, 4),%eax /* lo = b[i] */
mull %ebx /* hi, lo = b[i] * m */
addl 0(%esp), %eax /* lo += oldhi */
- jae _mulsubnocarry1
+ jae 2f
incl %edx /* hi += carry */
-_mulsubnocarry1:
+2:
subl %eax, (%edi, %ebp, 4)
- jae _mulsubnocarry2
+ jae 3f
incl %edx /* hi += carry */
-_mulsubnocarry2:
+3:
movl %edx, 0(%esp)
incl %ebp
- loop _mulsubloop
+ loop 1b
popl %eax
subl %eax, (%edi, %ebp, 4)
- jae _mulsubnocarry3
+ jae 4f
movl $-1, %eax
- jmp done
-_mulsubnocarry3:
+ jmp 5f
+4:
movl $1, %eax
-done:
+5:
/* Postlude */
popl %edi
popl %esi
(DIR) diff --git a/src/libmp/386/mpvecsub-Darwin.s b/src/libmp/386/mpvecsub-Darwin.s
t@@ -26,31 +26,31 @@ _mpvecsub:
/* skip subraction if b is zero */
testl %ecx,%ecx
- jz _sub1
+ jz 2f
/* diff[0:blen-1],borrow = a[0:blen-1] - b[0:blen-1] */
-_subloop1:
+1:
movl (%esi, %ebp, 4), %eax
sbbl (%ebx, %ebp, 4), %eax
movl %eax, (%edi, %ebp, 4)
incl %ebp
- loop _subloop1
+ loop 1b
-_sub1:
+2:
incl %edx
movl %edx,%ecx
- loop _subloop2
- jmp done
+ loop 3f
+ jmp 4f
/* diff[blen:alen-1] = a[blen:alen-1] - 0 */
-_subloop2:
+3:
movl (%esi, %ebp, 4), %eax
sbbl $0, %eax
movl %eax, (%edi, %ebp, 4)
incl %ebp
- loop _subloop2
+ loop 3b
-done:
+4:
/* Postlude */
popl %edi
popl %esi