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authorRuss Cox <rsc@swtch.com>2020-12-30 07:39:16 -0500
committerRuss Cox <rsc@swtch.com>2020-12-30 07:53:28 -0500
commit99dee78c2d44641ba56e5bb640d732f993b3dfa1 (patch)
tree3e785ab1037b96d4eb2dc321925bc0733332cea8 /src/libmp/386/mpvecsub.s
parent0bd14783426d137428ffae7cd89cfc06b88d1b11 (diff)
downloadplan9port-99dee78c2d44641ba56e5bb640d732f993b3dfa1.tar.gz
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all: remove $OBJTYPE from build
Now that we assume pthreads, the only assembly left is in libmp and libsec. We only ever added assembly for 386. The portable C code is fine for plan9port.
Diffstat (limited to 'src/libmp/386/mpvecsub.s')
-rw-r--r--src/libmp/386/mpvecsub.s60
1 files changed, 0 insertions, 60 deletions
diff --git a/src/libmp/386/mpvecsub.s b/src/libmp/386/mpvecsub.s
deleted file mode 100644
index d68424cf..00000000
--- a/src/libmp/386/mpvecsub.s
+++ /dev/null
@@ -1,60 +0,0 @@
-/* mpvecsub(mpdigit *a, int alen, mpdigit *b, int blen, mpdigit *diff) */
-/* diff[0:alen-1] = a[0:alen-1] - b[0:blen-1] */
-/* prereq: alen >= blen, diff has room for alen digits */
-/* (very old gnu assembler doesn't allow multiline comments) */
-
-.text
-
-.p2align 2,0x90
-.globl mpvecsub
-mpvecsub:
- /* Prelude */
- pushl %ebp /* save on stack */
- pushl %ebx
- pushl %esi
- pushl %edi
-
- leal 20(%esp), %ebp /* %ebp = FP for now */
- movl 0(%ebp), %esi /* a */
- movl 8(%ebp), %ebx /* b */
- movl 4(%ebp), %edx /* alen */
- movl 12(%ebp), %ecx /* blen */
- movl 16(%ebp), %edi /* diff */
-
- subl %ecx,%edx
- xorl %ebp,%ebp /* this also sets carry to 0 */
-
- /* skip subraction if b is zero */
- testl %ecx,%ecx
- jz _sub1
-
- /* diff[0:blen-1],borrow = a[0:blen-1] - b[0:blen-1] */
-_subloop1:
- movl (%esi, %ebp, 4), %eax
- sbbl (%ebx, %ebp, 4), %eax
- movl %eax, (%edi, %ebp, 4)
- incl %ebp
- loop _subloop1
-
-_sub1:
- incl %edx
- movl %edx,%ecx
- loop _subloop2
- jmp done
-
- /* diff[blen:alen-1] = a[blen:alen-1] - 0 */
-_subloop2:
- movl (%esi, %ebp, 4), %eax
- sbbl $0, %eax
- movl %eax, (%edi, %ebp, 4)
- incl %ebp
- loop _subloop2
-
-done:
- /* Postlude */
- popl %edi
- popl %esi
- popl %ebx
- popl %ebp
- ret
-