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authorBlue Swirl <blauwirbel@gmail.com>2012-05-30 04:23:37 +0000
committerAlexander Graf <agraf@suse.de>2012-06-24 01:04:43 +0200
commit901c4eaf9670060c837987dac7912e5ab46df58a (patch)
tree0c247ae77f94fafe9cb68e917e0ecdb5f5689195 /target-ppc/misc_helper.c
parentd0f1562d6ace0fdb7d2db190dd5a9a2e7492c3b3 (diff)
downloadqemu-arm-901c4eaf9670060c837987dac7912e5ab46df58a.tar.gz
ppc: Split off misc helpers
Move misc helpers from op_helper.c to misc_helpers.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc/misc_helper.c')
-rw-r--r--target-ppc/misc_helper.c116
1 files changed, 116 insertions, 0 deletions
diff --git a/target-ppc/misc_helper.c b/target-ppc/misc_helper.c
new file mode 100644
index 0000000000..67eab0853f
--- /dev/null
+++ b/target-ppc/misc_helper.c
@@ -0,0 +1,116 @@
+/*
+ * Miscellaneous PowerPC emulation helpers for QEMU.
+ *
+ * Copyright (c) 2003-2007 Jocelyn Mayer
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+#include "cpu.h"
+#include "dyngen-exec.h"
+#include "helper.h"
+
+#include "helper_regs.h"
+
+/*****************************************************************************/
+/* SPR accesses */
+void helper_load_dump_spr(uint32_t sprn)
+{
+ qemu_log("Read SPR %d %03x => " TARGET_FMT_lx "\n", sprn, sprn,
+ env->spr[sprn]);
+}
+
+void helper_store_dump_spr(uint32_t sprn)
+{
+ qemu_log("Write SPR %d %03x <= " TARGET_FMT_lx "\n", sprn, sprn,
+ env->spr[sprn]);
+}
+#if !defined(CONFIG_USER_ONLY)
+#if defined(TARGET_PPC64)
+void helper_store_asr(target_ulong val)
+{
+ ppc_store_asr(env, val);
+}
+#endif
+
+void helper_store_sdr1(target_ulong val)
+{
+ ppc_store_sdr1(env, val);
+}
+
+void helper_store_hid0_601(target_ulong val)
+{
+ target_ulong hid0;
+
+ hid0 = env->spr[SPR_HID0];
+ if ((val ^ hid0) & 0x00000008) {
+ /* Change current endianness */
+ env->hflags &= ~(1 << MSR_LE);
+ env->hflags_nmsr &= ~(1 << MSR_LE);
+ env->hflags_nmsr |= (1 << MSR_LE) & (((val >> 3) & 1) << MSR_LE);
+ env->hflags |= env->hflags_nmsr;
+ qemu_log("%s: set endianness to %c => " TARGET_FMT_lx "\n", __func__,
+ val & 0x8 ? 'l' : 'b', env->hflags);
+ }
+ env->spr[SPR_HID0] = (uint32_t)val;
+}
+
+void helper_store_403_pbr(uint32_t num, target_ulong value)
+{
+ if (likely(env->pb[num] != value)) {
+ env->pb[num] = value;
+ /* Should be optimized */
+ tlb_flush(env, 1);
+ }
+}
+
+void helper_store_40x_dbcr0(target_ulong val)
+{
+ store_40x_dbcr0(env, val);
+}
+
+void helper_store_40x_sler(target_ulong val)
+{
+ store_40x_sler(env, val);
+}
+#endif
+/*****************************************************************************/
+/* PowerPC 601 specific instructions (POWER bridge) */
+
+target_ulong helper_clcs(uint32_t arg)
+{
+ switch (arg) {
+ case 0x0CUL:
+ /* Instruction cache line size */
+ return env->icache_line_size;
+ break;
+ case 0x0DUL:
+ /* Data cache line size */
+ return env->dcache_line_size;
+ break;
+ case 0x0EUL:
+ /* Minimum cache line size */
+ return (env->icache_line_size < env->dcache_line_size) ?
+ env->icache_line_size : env->dcache_line_size;
+ break;
+ case 0x0FUL:
+ /* Maximum cache line size */
+ return (env->icache_line_size > env->dcache_line_size) ?
+ env->icache_line_size : env->dcache_line_size;
+ break;
+ default:
+ /* Undefined */
+ return 0;
+ break;
+ }
+}