a16308efdb
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.
20 lines
457 B
ArmAsm
20 lines
457 B
ArmAsm
/* mul64u() - unsigned long by unsigned multiply giving 64 bit result */
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/* Author: Kees J. Bot */
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/* 7 Dec 1995 */
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#include <minix/compiler.h>
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.text
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.globl _mul64u
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_mul64u:
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/* u64_t mul64u(unsigned long i, unsigned j); */
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movl 4(%esp), %ecx
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movl 8(%esp), %eax
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mull 12(%esp)
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movl %eax, (%ecx)
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movl %edx, 4(%ecx)
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movl %ecx, %eax
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ret BYTES_TO_POP_ON_STRUCT_RETURN
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/* */
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/* $PchId: mul64u.ack.s,v 1.2 1996/04/11 18:59:57 philip Exp $ */
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