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authorAnton Kling <anton@kling.gg>2023-10-22 19:50:38 +0200
committerAnton Kling <anton@kling.gg>2023-10-22 19:50:38 +0200
commit4e09bca9e34c226b6d7e34b4fa11248405fd988e (patch)
tree80f156b7940d9d19971395f335530170c69516c7 /userland/libc/setjmp
Move everything into a new repo.
Diffstat (limited to 'userland/libc/setjmp')
-rw-r--r--userland/libc/setjmp/longjmp.s16
-rw-r--r--userland/libc/setjmp/setjmp.s23
2 files changed, 39 insertions, 0 deletions
diff --git a/userland/libc/setjmp/longjmp.s b/userland/libc/setjmp/longjmp.s
new file mode 100644
index 0000000..8188f06
--- /dev/null
+++ b/userland/libc/setjmp/longjmp.s
@@ -0,0 +1,16 @@
+.global _longjmp
+.global longjmp
+.type _longjmp,@function
+.type longjmp,@function
+_longjmp:
+longjmp:
+ mov 4(%esp),%edx
+ mov 8(%esp),%eax
+ cmp $1,%eax
+ adc $0, %al
+ mov (%edx),%ebx
+ mov 4(%edx),%esi
+ mov 8(%edx),%edi
+ mov 12(%edx),%ebp
+ mov 16(%edx),%esp
+ jmp *20(%edx)
diff --git a/userland/libc/setjmp/setjmp.s b/userland/libc/setjmp/setjmp.s
new file mode 100644
index 0000000..4d19cf8
--- /dev/null
+++ b/userland/libc/setjmp/setjmp.s
@@ -0,0 +1,23 @@
+.global ___setjmp
+.hidden ___setjmp
+.global __setjmp
+.global _setjmp
+.global setjmp
+.type __setjmp,@function
+.type _setjmp,@function
+.type setjmp,@function
+___setjmp:
+__setjmp:
+_setjmp:
+setjmp:
+ mov 4(%esp), %eax
+ mov %ebx, (%eax)
+ mov %esi, 4(%eax)
+ mov %edi, 8(%eax)
+ mov %ebp, 12(%eax)
+ lea 4(%esp), %ecx
+ mov %ecx, 16(%eax)
+ mov (%esp), %ecx
+ mov %ecx, 20(%eax)
+ xor %eax, %eax
+ ret