| /======================================================================= |
| / solaris_i386.s -- compare and swap for solaris_i386 |
| /======================================================================= |
| |
| / Fortunately the Sun compiler can process cpp conditionals with -P |
| |
| / '/' is the comment for x86, while '!' is the comment for Sparc |
| |
| .file "tas.s" |
| |
| #if defined(__amd64) |
| .code64 |
| #endif |
| |
| .globl pg_atomic_cas |
| .type pg_atomic_cas, @function |
| |
| .section .text, "ax" |
| .align 16 |
| |
| pg_atomic_cas: |
| #if defined(__amd64) |
| movl %edx,%eax |
| lock |
| cmpxchgl %esi,(%rdi) |
| #else |
| movl 4(%esp), %edx |
| movl 8(%esp), %ecx |
| movl 12(%esp), %eax |
| lock |
| cmpxchgl %ecx, (%edx) |
| #endif |
| ret |
| .size pg_atomic_cas, . - pg_atomic_cas |
