diff src/cpu/sparc/vm/c1_Defs_sparc.hpp @ 0:a61af66fc99e jdk7-b24

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children d0acbc302e14
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cpu/sparc/vm/c1_Defs_sparc.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2000-2005 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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 General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+// native word offsets from memory address (big endian)
+enum {
+  pd_lo_word_offset_in_bytes = BytesPerInt,
+  pd_hi_word_offset_in_bytes = 0
+};
+
+
+// explicit rounding operations are not required to implement the strictFP mode
+enum {
+  pd_strict_fp_requires_explicit_rounding = false
+};
+
+
+// registers
+enum {
+  pd_nof_cpu_regs_frame_map = 32,  // number of registers used during code emission
+  pd_nof_caller_save_cpu_regs_frame_map = 6,  // number of cpu registers killed by calls
+  pd_nof_cpu_regs_reg_alloc = 20,  // number of registers that are visible to register allocator
+  pd_nof_cpu_regs_linearscan = 32,// number of registers visible linear scan
+  pd_first_cpu_reg = 0,
+  pd_last_cpu_reg = 31,
+  pd_last_allocatable_cpu_reg = 19,
+  pd_first_callee_saved_reg = 0,
+  pd_last_callee_saved_reg = 13,
+
+  pd_nof_fpu_regs_frame_map = 32,  // number of registers used during code emission
+  pd_nof_caller_save_fpu_regs_frame_map = 32,  // number of fpu registers killed by calls
+  pd_nof_fpu_regs_reg_alloc = 32,  // number of registers that are visible to register allocator
+  pd_nof_fpu_regs_linearscan = 32, // number of registers visible to linear scan
+  pd_first_fpu_reg = pd_nof_cpu_regs_frame_map,
+  pd_last_fpu_reg =  pd_nof_cpu_regs_frame_map + pd_nof_fpu_regs_frame_map - 1,
+
+  pd_nof_xmm_regs_linearscan = 0,
+  pd_nof_caller_save_xmm_regs = 0,
+  pd_first_xmm_reg = -1,
+  pd_last_xmm_reg = -1
+};
+
+
+// for debug info: a float value in a register is saved in single precision by runtime stubs
+enum {
+  pd_float_saved_as_double = false
+};