minix/lib/libc/arch/i386/int64/cvu64.S

/*	cvu64() - unsigned converted to 64 bit		Author: Kees J. Bot */
/*								7 Dec 1995 */
#include <minix/compiler.h>

.text
.globl	_cvu64, _cvul64

_cvu64:
/* u64_t cvu64(unsigned i); */
_cvul64:
/* u64_t cvul64(unsigned long i); */
	movl	4(%esp), %eax
	movl	8(%esp), %edx
	movl	%edx, (%eax)
	movl	$0, 4(%eax)
	ret BYTES_TO_POP_ON_STRUCT_RETURN

/* */
/* $PchId: cvu64.ack.s,v 1.2 1996/04/11 18:59:57 philip Exp $ */
Convert library asm files to GAS syntax 2010-03-03 15:27:30 +01:00			`/* cvu64() - unsigned converted to 64 bit Author: Kees J. Bot */`
			`/* 7 Dec 1995 */`
cdecl calling convention expects the callee to pop the hidden pointer on 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. 2010-03-24 18:25:17 +01:00			`#include <minix/compiler.h>`

Convert library asm files to GAS syntax 2010-03-03 15:27:30 +01:00			`.text`
			`.globl _cvu64, _cvul64`

			`_cvu64:`
			`/* u64_t cvu64(unsigned i); */`
			`_cvul64:`
			`/* u64_t cvul64(unsigned long i); */`
			`movl 4(%esp), %eax`
			`movl 8(%esp), %edx`
			`movl %edx, (%eax)`
			`movl $0, 4(%eax)`
cdecl calling convention expects the callee to pop the hidden pointer on 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. 2010-03-24 18:25:17 +01:00			`ret BYTES_TO_POP_ON_STRUCT_RETURN`
Convert library asm files to GAS syntax 2010-03-03 15:27:30 +01:00
			`/* */`
			`/* $PchId: cvu64.ack.s,v 1.2 1996/04/11 18:59:57 philip Exp $ */`