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better than nothing 64 bit support - added sign extension for TYPE_LONG

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3605 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2007-11-11 19:31:34 +00:00
parent 6a3b9cc9c5
commit 70499c989f
1 changed files with 27 additions and 1 deletions
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28
thunk.c
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@ -147,11 +147,37 @@ const argtype *thunk_convert(void *dst, const void *src,
case TYPE_ULONG:
case TYPE_PTRVOID:
if (to_host) {
*(uint64_t *)dst = tswap32(*(uint32_t *)src);
if (type == TYPE_LONG) {
/* sign extension */
*(uint64_t *)dst = (int32_t)tswap32(*(uint32_t *)src);
} else {
*(uint64_t *)dst = tswap32(*(uint32_t *)src);
}
} else {
*(uint32_t *)dst = tswap32(*(uint64_t *)src & 0xffffffff);
}
break;
#elif HOST_LONG_BITS == 64 && TARGET_ABI_BITS == 64
case TYPE_LONG:
case TYPE_ULONG:
case TYPE_PTRVOID:
*(uint64_t *)dst = tswap64(*(uint64_t *)src);
break;
#elif HOST_LONG_BITS == 32 && TARGET_ABI_BITS == 64
case TYPE_LONG:
case TYPE_ULONG:
case TYPE_PTRVOID:
if (to_host) {
*(uint32_t *)dst = tswap64(*(uint64_t *)src);
} else {
if (type == TYPE_LONG) {
/* sign extension */
*(uint64_t *)dst = tswap64(*(int32_t *)src);
} else {
*(uint64_t *)dst = tswap64(*(uint32_t *)src);
}
}
break;
#else
#warning unsupported conversion
#endif