struct return. For example, GCC and LLVM comply with this (tested on IA32). ACK doesn't seem to follow this convention and expects the caller to clean up the stack. Compiling hand-written ACK-compliant assembly code (returning a struct) with GCC or LLVM used to break things (4-bytes misaligned stack). The patch fixes this problem.
19 lines
441 B
ArmAsm
19 lines
441 B
ArmAsm
/* make64() - make a 64 bit number from two 32 bit halves */
|
|
/* Author: Kees J. Bot */
|
|
/* 7 Dec 1995 */
|
|
#include <minix/compiler.h>
|
|
|
|
.text
|
|
.globl _make64
|
|
|
|
_make64:
|
|
/* u64_t make64(unsigned long lo, unsigned long hi); */
|
|
movl 4(%esp), %eax
|
|
movl 8(%esp), %edx
|
|
movl %edx, (%eax)
|
|
movl 12(%esp), %edx
|
|
movl %edx, 4(%eax)
|
|
ret BYTES_TO_POP_ON_STRUCT_RETURN
|
|
|
|
/* */
|
|
/* $PchId: make64.ack.s,v 1.2 1996/04/11 18:59:57 philip Exp $ */
|