void InterpreterStubs::generate_interpreter_timer_tick() {
comment_section("Interpreter call timer_tick");
entry("interpreter_timer_tick");
interpreter_call_vm(Constant("timer_tick"), T_VOID);
dispatch_next();
entry_end(); // interpreter_timer_tick
#if ENABLE_PAGE_PROTECTION
stop_code_segment();
start_data_segment();
if (GenerateGNUCode || GenerateInlineAsm) {
align(PROTECTED_PAGE_SIZE);
define_array_begin("unsigned char", "_protected_page");
for (int i = 0; i < PROTECTED_PAGE_SIZE; i++) {
define_byte_element(Constant(0));
}
define_array_end();
} else {
// MASM doesn't allow 4096-byte alignment,
// so surround the protected area with 4K padding.
// This will certainly add 8K of static footprint,
// but who cares about the size of win32_i386 binary!
define_byte(Constant(0), PROTECTED_PAGE_SIZE);
define_long(Constant(0), PROTECTED_PAGE_SIZE / BytesPerWord,
"_protected_page");
define_byte(Constant(0), PROTECTED_PAGE_SIZE);
}
stop_data_segment();
start_code_segment();
#endif
}
void SourceAssembler::start() {
_current_segment = NO_SEGMENT;
// Emit the header.
emit_comment("Copyright 1990-2009 Sun Microsystems, Inc. All Rights Reserved.");
emit_comment("DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER");
emit_comment("");
emit_comment("This program is free software; you can redistribute it and/or");
emit_comment("modify it under the terms of the GNU General Public License version");
emit_comment("2 only, as published by the Free Software Foundation.");
emit_comment("");
emit_comment("This program is distributed in the hope that it will be useful, but");
emit_comment("WITHOUT ANY WARRANTY; without even the implied warranty of");
emit_comment("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU");
emit_comment("General Public License version 2 for more details (a copy is");
emit_comment("included at /legal/license.txt).");
emit_comment("");
emit_comment("You should have received a copy of the GNU General Public License");
emit_comment("version 2 along with this work; if not, write to the Free Software");
emit_comment("Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA");
emit_comment("02110-1301 USA");
emit_comment("");
emit_comment("Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa");
emit_comment("Clara, CA 95054 or visit www.sun.com if you need additional");
emit_comment("information or have any questions.");
emit("\n");
if (GenerateInlineAsm) {
if (1) { // visual c++
emit("#define __DECLSPEC_ALIGN(x)\n");
} else {
emit("#define __DECLSPEC_ALIGN(x) __declspec(align(x))\n");
}
}
// Make sure people know that this file shouldn't be edited.
comment_section("Generated assembly file -- do *not* edit");
emit("\n");
// Emit the platform and model specifiers.
if (!GenerateGNUCode) {
if (!GenerateInlineAsm) {
emit("\t.486P\n");
emit("\t.MODEL flat, C\n\n");
}
} else {
emit("\t.arch i486\n");
}
start_code_segment();
}
void NativeGenerator::generate_native_math_entries() {
comment_section("Native entry points for math functions");
int offset = 0;
#if ENABLE_FLOAT
stop_code_segment();
start_data_segment();
stop_data_segment();
start_code_segment();
// Generate sinus entry.
offset = 0;
rom_linkable_entry("native_math_sin_entry");
comment("store return address");
popl(edi);
pop_double(eax, ecx);
pushl(ecx);
pushl(eax);
call(Constant("jvm_sin"));
addl(esp, Constant(8));
push_from_fpu_stack(double_tag, offset, true);
jmp(edi);
rom_linkable_entry_end(); // native_math_sin_entry
// Generate cosinus entry.
offset = 0;
rom_linkable_entry("native_math_cos_entry");
comment("store return address");
popl(edi);
pop_double(eax, ecx);
pushl(ecx);
pushl(eax);
call(Constant("jvm_cos"));
addl(esp, Constant(8));
push_from_fpu_stack(double_tag, offset, true);
jmp(edi);
rom_linkable_entry_end(); // native_math_cos_entry
// Generate tangent entry.
offset = 0;
rom_linkable_entry("native_math_tan_entry");
comment("store return address");
popl(edi);
pop_double(eax, ecx);
pushl(ecx);
pushl(eax);
call(Constant("jvm_tan"));
addl(esp, Constant(8));
push_from_fpu_stack(double_tag, offset, true);
jmp(edi);
rom_linkable_entry_end(); // native_math_tan_entry
// Generate square root entry.
offset = 0;
rom_linkable_entry("native_math_sqrt_entry");
comment("store return address");
popl(edi);
pop_double(eax, ecx);
pushl(ecx);
pushl(eax);
call(Constant("jvm_sqrt"));
addl(esp, Constant(8));
push_from_fpu_stack(double_tag, offset, true);
jmp(edi);
rom_linkable_entry_end(); // native_math_sqrt_entry
// Generate ceil entry.
offset = 0;
rom_linkable_entry("native_math_ceil_entry");
comment("store return address");
popl(edi);
pop_double(eax, ecx);
pushl(ecx);
pushl(eax);
call(Constant("jvm_ceil"));
addl(esp, Constant(8));
push_from_fpu_stack(double_tag, offset, true);
jmp(edi);
rom_linkable_entry_end(); // native_math_ceil_entry
// Generate floor entry.
offset = 0;
rom_linkable_entry("native_math_floor_entry");
comment("store return address");
popl(edi);
pop_double(eax, ecx);
pushl(ecx);
pushl(eax);
call(Constant("jvm_floor"));
addl(esp, Constant(8));
push_from_fpu_stack(double_tag, offset, true);
jmp(edi);
rom_linkable_entry_end(); // native_math_floor_entry
#endif /* ENABLE_FLOAT */
}
