diff options
Diffstat (limited to 'lib/alloca86.S')
| -rw-r--r-- | lib/alloca86.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/lib/alloca86.S b/lib/alloca86.S new file mode 100644 index 0000000..a60b140 --- /dev/null +++ b/lib/alloca86.S @@ -0,0 +1,33 @@ +/* ---------------------------------------------- */ +/* alloca86.S */ + +#include "config.h" + +.globl _alloca + +_alloca: + pop %edx + pop %eax + add $3,%eax + and $-4,%eax + jz p3 + +#ifdef TCC_TARGET_PE +p1: + cmp $4096,%eax + jle p2 + sub $4096,%esp + sub $4096,%eax + test %eax,(%esp) + jmp p1 +p2: +#endif + + sub %eax,%esp + mov %esp,%eax +p3: + push %edx + push %edx + ret + +/* ---------------------------------------------- */ |