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authorbellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>2005-04-23 18:16:07 +0000
committerbellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>2005-04-23 18:16:07 +0000
commit111bfab3b5c6a47a7182e095647e6a5e0e17feb8 (patch)
tree7ff41315c47fc137d03a92d42acc7333965544f0 /target-ppc/op_helper_mem.h
parentc7d344af8fb308975f941de1640b917e1b085a81 (diff)
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This patch adds little-endian mode support to PPC emulation.
This is needed by OS/2 and Windows NT and some programs like VirtualPC. This patch has been tested using OS/2 bootloader (thanks to Tero Kaarlela). (Jocelyn Mayer) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1379 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-ppc/op_helper_mem.h')
-rw-r--r--target-ppc/op_helper_mem.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/target-ppc/op_helper_mem.h b/target-ppc/op_helper_mem.h
index 85ac911..fa7f076 100644
--- a/target-ppc/op_helper_mem.h
+++ b/target-ppc/op_helper_mem.h
@@ -40,4 +40,53 @@ void glue(do_stsw, MEMSUFFIX) (int src)
}
}
+void glue(do_lsw_le, MEMSUFFIX) (int dst)
+{
+ uint32_t tmp;
+ int sh;
+
+ if (loglevel > 0) {
+ fprintf(logfile, "%s: addr=0x%08x count=%d reg=%d\n",
+ __func__, T0, T1, dst);
+ }
+ for (; T1 > 3; T1 -= 4, T0 += 4) {
+ tmp = glue(ldl, MEMSUFFIX)(T0);
+ ugpr(dst++) = ((tmp & 0xFF000000) >> 24) | ((tmp & 0x00FF0000) >> 8) |
+ ((tmp & 0x0000FF00) << 8) | ((tmp & 0x000000FF) << 24);
+ if (dst == 32)
+ dst = 0;
+ }
+ if (T1 > 0) {
+ tmp = 0;
+ for (sh = 0; T1 > 0; T1--, T0++, sh += 8) {
+ tmp |= glue(ldub, MEMSUFFIX)(T0) << sh;
+ }
+ ugpr(dst) = tmp;
+ }
+}
+
+void glue(do_stsw_le, MEMSUFFIX) (int src)
+{
+ uint32_t tmp;
+ int sh;
+
+ if (loglevel > 0) {
+ fprintf(logfile, "%s: addr=0x%08x count=%d reg=%d\n",
+ __func__, T0, T1, src);
+ }
+ for (; T1 > 3; T1 -= 4, T0 += 4) {
+ tmp = ((ugpr(src++) & 0xFF000000) >> 24);
+ tmp |= ((ugpr(src++) & 0x00FF0000) >> 8);
+ tmp |= ((ugpr(src++) & 0x0000FF00) << 8);
+ tmp |= ((ugpr(src++) & 0x000000FF) << 24);
+ glue(stl, MEMSUFFIX)(T0, tmp);
+ if (src == 32)
+ src = 0;
+ }
+ if (T1 > 0) {
+ for (sh = 0; T1 > 0; T1--, T0++, sh += 8)
+ glue(stb, MEMSUFFIX)(T0, (ugpr(src) >> sh) & 0xFF);
+ }
+}
+
#undef MEMSUFFIX