ARM system emulation (Paul Brook)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1661 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 70 insertions, 0 deletions

diff --git a/target-arm/op_mem.h b/target-arm/op_mem.h
new file mode 100644
index 000000000..29fd85bc3
--- /dev/null
+++ b/target-arm/op_mem.h
@@ -0,0 +1,70 @@
+/* ARM memory operations.  */
+
+/* Load from address T1 into T0.  */
+#define MEM_LD_OP(name) \
+void OPPROTO glue(op_ld##name,MEMSUFFIX)(void) \
+{ \
+    T0 = glue(ld##name,MEMSUFFIX)(T1); \
+    FORCE_RET(); \
+}
+
+MEM_LD_OP(ub)
+MEM_LD_OP(sb)
+MEM_LD_OP(uw)
+MEM_LD_OP(sw)
+MEM_LD_OP(l)
+
+#undef MEM_LD_OP
+
+/* Store T0 to address T1.  */
+#define MEM_ST_OP(name) \
+void OPPROTO glue(op_st##name,MEMSUFFIX)(void) \
+{ \
+    glue(st##name,MEMSUFFIX)(T1, T0); \
+    FORCE_RET(); \
+}
+
+MEM_ST_OP(b)
+MEM_ST_OP(w)
+MEM_ST_OP(l)
+
+#undef MEM_ST_OP
+
+/* Swap T0 with memory at address T1.  */
+/* ??? Is this exception safe?  */
+#define MEM_SWP_OP(name, lname) \
+void OPPROTO glue(op_swp##name,MEMSUFFIX)(void) \
+{ \
+    uint32_t tmp; \
+    cpu_lock(); \
+    tmp = glue(ld##lname,MEMSUFFIX)(T1); \
+    glue(st##name,MEMSUFFIX)(T1, T0); \
+    T0 = tmp; \
+    cpu_unlock(); \
+    FORCE_RET(); \
+}
+
+MEM_SWP_OP(b, ub)
+MEM_SWP_OP(l, l)
+
+#undef MEM_SWP_OP
+
+/* Floating point load/store.  Address is in T1 */
+#define VFP_MEM_OP(p, w) \
+void OPPROTO glue(op_vfp_ld##p,MEMSUFFIX)(void) \
+{ \
+    FT0##p = glue(ldf##w,MEMSUFFIX)(T1); \
+    FORCE_RET(); \
+} \
+void OPPROTO glue(op_vfp_st##p,MEMSUFFIX)(void) \
+{ \
+    glue(stf##w,MEMSUFFIX)(T1, FT0##p); \
+    FORCE_RET(); \
+}
+
+VFP_MEM_OP(s,l)
+VFP_MEM_OP(d,q)
+
+#undef VFP_MEM_OP
+
+#undef MEMSUFFIX