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<title>ao68000: Microcode</title>
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<div class="header">
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<div class="headertitle">
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<h1>Microcode </h1> </div>
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</div>
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<div class="contents">
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<p>The listing below represents the microcode. It is taken from <code>./sw/ao68000_tool/Microcode.java</code>. More information about the microcode structure and compilation is available at <a class="el" href="page_microcode_compilation.html">Microcode compilation</a>.</p>
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<div class="fragment"><pre class="fragment"><span class="comment">/*</span>
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<span class="comment"> * Copyright 2010, Aleksander Osman, alfik@poczta.fm. All rights reserved.</span>
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<span class="comment"> *</span>
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<span class="comment"> * Redistribution and use in source and binary forms, with or without modification, are</span>
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<span class="comment"> * permitted provided that the following conditions are met:</span>
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<span class="comment"> *</span>
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<span class="comment"> * 1. Redistributions of source code must retain the above copyright notice, this list of</span>
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<span class="comment"> * conditions and the following disclaimer.</span>
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<span class="comment"> *</span>
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<span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright notice, this list</span>
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<span class="comment"> * of conditions and the following disclaimer in the documentation and/or other materials</span>
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<span class="comment"> * provided with the distribution.</span>
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<span class="comment"> *</span>
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<span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED</span>
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<span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND</span>
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<span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR</span>
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<span class="comment"> * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR</span>
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<span class="comment"> * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR</span>
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<span class="comment"> * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON</span>
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<span class="comment"> * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING</span>
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<span class="comment"> * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF</span>
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<span class="comment"> * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
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<span class="comment"> */</span>
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<span class="keyword">package </span>ao68000_tool;
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<span class="keyword">public</span> <span class="keyword">class </span>Microcode {
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<span class="keyword">static</span> <span class="keywordtype">void</span> microcode(Parser p) <span class="keywordflow">throws</span> Exception {
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p.label(<span class="stringliteral">"reset"</span>);
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p .GROUP_0_FLAG_SET();
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| 64 |
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| 65 |
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<span class="comment">// wait for instruction prefetch</span>
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p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
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| 68 |
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<span class="comment">// move SSP and PC from prefetch</span>
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| 69 |
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p .AN_INPUT_FROM_PREFETCH_IR().AN_ADDRESS_SSP().AN_WRITE_ENABLE_SET()
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.PC_FROM_PREFETCH_IR()
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<span class="comment">// jump to main loop</span>
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.BRANCH_procedure().PROCEDURE_jump_to_main_loop();
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| 74 |
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p.label(<span class="stringliteral">"MICROPC_ADDRESS_BUS_TRAP"</span>);
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<span class="comment">// save trap number and bus cycle extended information</span>
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p .TRAP_FROM_INTERRUPT()
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.OP2_MOVE_ADDRESS_BUS_INFO()
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| 80 |
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<span class="comment">// clear internal flags</span>
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| 81 |
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.READ_MODIFY_WRITE_FLAG_CLEAR()
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.INSTRUCTION_FLAG_SET()
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.DO_READ_FLAG_CLEAR()
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.DO_WRITE_FLAG_CLEAR()
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.DO_INTERRUPT_FLAG_CLEAR()
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| 86 |
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<span class="comment">// check if group_0_flag already active</span>
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.BRANCH_group_0_flag().offset(<span class="stringliteral">"address_bus_trap_group_0_flag_cleared"</span>);
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<span class="comment">// if group_0_flag active: block processor</span>
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p .DO_BLOCKED_FLAG_SET()
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.BRANCH_procedure()
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.PROCEDURE_wait_finished();
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<span class="comment">// continue processing trap</span>
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p .label(<span class="stringliteral">"address_bus_trap_group_0_flag_cleared"</span>);
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p .GROUP_0_FLAG_SET();
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<span class="comment">//--</span>
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<span class="comment">// move PC to OP1</span>
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p .OP1_FROM_PC();
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<span class="comment">// move OP1 to result</span>
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p .ALU_SIMPLE_MOVE()
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<span class="comment">// move SR to OP1</span>
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.OP1_FROM_SR();
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<span class="comment">// set supervisor, clear trace</span>
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p .ALU_SR_SET_TRAP();
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<span class="comment">//--</span>
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<span class="comment">// stack PC</span>
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p .SIZE_LONG().EA_REG_3b111().EA_MOD_PREDEC().EA_TYPE_ALL();
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p .BRANCH_procedure().PROCEDURE_call_load_ea();
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p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
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p .BRANCH_procedure().PROCEDURE_call_save_ea()
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<span class="comment">// move SR to result</span>
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.ALU_SIMPLE_MOVE()
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<span class="comment">// move IR to OP1</span>
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.OP1_FROM_IR();
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<span class="comment">// stack SR</span>
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p .SIZE_WORD().EA_REG_3b111().EA_MOD_PREDEC().EA_TYPE_ALL();
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p .BRANCH_procedure().PROCEDURE_call_load_ea();
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p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
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p .BRANCH_procedure().PROCEDURE_call_save_ea()
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<span class="comment">// move IR to result</span>
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.ALU_SIMPLE_MOVE()
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<span class="comment">// move fault address to OP1</span>
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.OP1_FROM_FAULT_ADDRESS();
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<span class="comment">//--</span>
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<span class="comment">// stack IR</span>
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p .BRANCH_procedure().PROCEDURE_call_load_ea();
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p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
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p .BRANCH_procedure().PROCEDURE_call_save_ea()
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<span class="comment">// move fault address to result</span>
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.ALU_SIMPLE_MOVE()
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<span class="comment">// move bus cycle info stored in OP2 to OP1</span>
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.OP1_FROM_OP2();
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<span class="comment">// stack fault address</span>
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p .SIZE_LONG().EA_REG_3b111().EA_MOD_PREDEC().EA_TYPE_ALL();
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p .BRANCH_procedure().PROCEDURE_call_load_ea();
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p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
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p .BRANCH_procedure().PROCEDURE_call_save_ea()
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| 146 |
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<span class="comment">// move bus cycle info from OP1 to result</span>
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.ALU_SIMPLE_MOVE();
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| 148 |
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<span class="comment">// stack bus cycle info</span>
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p .SIZE_WORD().EA_REG_3b111().EA_MOD_PREDEC().EA_TYPE_ALL();
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p .BRANCH_procedure().PROCEDURE_call_load_ea();
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p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
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p .BRANCH_procedure().PROCEDURE_call_save_ea();
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| 154 |
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| 155 |
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<span class="comment">//--</span>
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| 156 |
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<span class="comment">// load PC from exception vector table</span>
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p .ADDRESS_FROM_TRAP()
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.SIZE_LONG().EA_REG_3b111().EA_MOD_PREDEC().EA_TYPE_ALL();
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| 159 |
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p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
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| 160 |
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p .ALU_SIMPLE_MOVE();
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| 161 |
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| 162 |
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<span class="comment">// wait for instruction prefetch</span>
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| 163 |
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p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
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| 164 |
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| 165 |
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p .PC_FROM_RESULT();
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| 166 |
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| 167 |
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<span class="comment">// wait one cycle to check loaded PC: is it even ?</span>
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| 168 |
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p .OP1_FROM_OP2();
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<span class="comment">//--</span>
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| 170 |
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<span class="comment">// jump to main loop</span>
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| 171 |
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p .BRANCH_procedure().PROCEDURE_jump_to_main_loop();
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| 172 |
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| 173 |
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p.label(<span class="stringliteral">"MICROPC_TRAP_ENTRY"</span>);
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| 174 |
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| 175 |
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<span class="comment">//--</span>
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| 176 |
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<span class="comment">// move PC to OP1</span>
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| 177 |
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p .OP1_FROM_PC();
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| 178 |
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<span class="comment">// move OP1 to result</span>
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| 179 |
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p .ALU_SIMPLE_MOVE()
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| 180 |
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<span class="comment">// move SR to OP1</span>
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| 181 |
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.OP1_FROM_SR();
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| 182 |
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| 183 |
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<span class="comment">// set supervisor, clear trace</span>
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| 184 |
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p .ALU_SR_SET_TRAP();
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| 185 |
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| 186 |
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<span class="comment">//--</span>
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| 187 |
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<span class="comment">// stack PC</span>
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| 188 |
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p .SIZE_LONG().EA_REG_3b111().EA_MOD_PREDEC().EA_TYPE_ALL();
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| 189 |
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p .BRANCH_procedure().PROCEDURE_call_load_ea();
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| 190 |
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p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
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| 191 |
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p .BRANCH_procedure().PROCEDURE_call_save_ea()
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| 192 |
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<span class="comment">// move SR to result</span>
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| 193 |
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.ALU_SIMPLE_MOVE();
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| 194 |
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| 195 |
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<span class="comment">// stack SR</span>
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| 196 |
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p .SIZE_WORD().EA_REG_3b111().EA_MOD_PREDEC().EA_TYPE_ALL();
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| 197 |
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p .BRANCH_procedure().PROCEDURE_call_load_ea();
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| 198 |
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p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 199 |
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p .BRANCH_procedure().PROCEDURE_call_save_ea();
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| 200 |
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| 201 |
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<span class="comment">//--</span>
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| 202 |
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<span class="comment">// load PC from exception vector table</span>
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| 203 |
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p .ADDRESS_FROM_TRAP()
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| 204 |
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.SIZE_LONG().EA_REG_3b111().EA_MOD_PREDEC().EA_TYPE_ALL();
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| 205 |
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p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
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| 206 |
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p .ALU_SIMPLE_MOVE();
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| 207 |
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| 208 |
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<span class="comment">// wait for instruction prefetch</span>
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| 209 |
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p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
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| 210 |
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| 211 |
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p .PC_FROM_RESULT();
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| 212 |
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| 213 |
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<span class="comment">// wait one cycle to check loaded PC: is it even ?</span>
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| 214 |
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p .OP1_FROM_OP2();
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| 215 |
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| 216 |
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<span class="comment">//--</span>
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| 217 |
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<span class="comment">// return</span>
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| 218 |
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p .BRANCH_procedure().PROCEDURE_return();
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| 219 |
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| 220 |
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| 221 |
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p.label(<span class="stringliteral">"MICROPC_MAIN_LOOP"</span>);
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| 222 |
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| 223 |
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<span class="comment">// check if stop flag set and wait for valid prefetch and decode instruction</span>
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| 224 |
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<span class="comment">// execute instruction, instruction generated trap possible</span>
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| 225 |
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p .BRANCH_stop_flag_wait_ir_decode().offset(<span class="stringliteral">"main_loop_after_execution"</span>)
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| 226 |
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<span class="comment">// clear read-modify-write flag always</span>
|
| 227 |
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.READ_MODIFY_WRITE_FLAG_CLEAR()
|
| 228 |
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| 229 |
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<span class="comment">// save trace flag, only when valid prefetch and valid instruction and stop flag cleared</span>
|
| 230 |
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.TRACE_FLAG_COPY_WHEN_NO_STOP()
|
| 231 |
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| 232 |
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<span class="comment">// save first instruction word, only when prefetch valid and stop flag cleared</span>
|
| 233 |
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.IR_LOAD_WHEN_PREFETCH_VALID()
|
| 234 |
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<span class="comment">// clear group 0 flag, only when valid prefetch and stop flag cleared</span>
|
| 235 |
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.GROUP_0_FLAG_CLEAR_WHEN_VALID_PREFETCH()
|
| 236 |
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| 237 |
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<span class="comment">// increment PC by 2, only when valid prefetch and valid instruction and stop flag cleared</span>
|
| 238 |
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.PC_INCR_BY_2_IN_MAIN_LOOP()
|
| 239 |
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<span class="comment">// clear instruction flag, only when valid prefetch and valid instruction and stop flag cleared</span>
|
| 240 |
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.INSTRUCTION_FLAG_CLEAR_IN_MAIN_LOOP();
|
| 241 |
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| 242 |
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<span class="comment">// call trap</span>
|
| 243 |
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p .TRAP_FROM_DECODER()
|
| 244 |
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.INSTRUCTION_FLAG_SET()
|
| 245 |
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.BRANCH_procedure().PROCEDURE_call_trap();
|
| 246 |
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<span class="comment">// after trap jump to main loop</span>
|
| 247 |
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p .BRANCH_procedure().PROCEDURE_jump_to_main_loop();
|
| 248 |
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| 249 |
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<span class="comment">// jump here after execution</span>
|
| 250 |
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p .label(<span class="stringliteral">"main_loop_after_execution"</span>);
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| 251 |
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| 252 |
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<span class="comment">// check if trace flag set and check external interrupt</span>
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| 253 |
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p .BRANCH_trace_flag_and_interrupt().offset(<span class="stringliteral">"main_loop_interrupt"</span>)
|
| 254 |
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<span class="comment">// set instruction flag, always</span>
|
| 255 |
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.INSTRUCTION_FLAG_SET();
|
| 256 |
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| 257 |
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<span class="comment">// call trap</span>
|
| 258 |
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p .TRAP_TRACE()
|
| 259 |
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.STOP_FLAG_CLEAR()
|
| 260 |
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.BRANCH_procedure().PROCEDURE_call_trap();
|
| 261 |
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<span class="comment">// after trap continue</span>
|
| 262 |
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| 263 |
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<span class="comment">// jump here if trace flag not set and interupt pending</span>
|
| 264 |
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p .label(<span class="stringliteral">"main_loop_interrupt"</span>);
|
| 265 |
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| 266 |
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<span class="comment">// check external interrupt</span>
|
| 267 |
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p .DO_INTERRUPT_FLAG_SET_IF_ACTIVE()
|
| 268 |
|
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.BRANCH_procedure().PROCEDURE_interrupt_mask();
|
| 269 |
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|
| 270 |
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p .BRANCH_procedure().PROCEDURE_wait_finished()
|
| 271 |
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.ALU_SR_SET_INTERRUPT();
|
| 272 |
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| 273 |
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p .DO_INTERRUPT_FLAG_CLEAR()
|
| 274 |
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.TRAP_FROM_INTERRUPT()
|
| 275 |
|
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.STOP_FLAG_CLEAR()
|
| 276 |
|
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.BRANCH_procedure().PROCEDURE_call_trap();
|
| 277 |
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|
| 278 |
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<span class="comment">// after trap jump to main loop</span>
|
| 279 |
|
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p .BRANCH_procedure().PROCEDURE_jump_to_main_loop();
|
| 280 |
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| 281 |
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<span class="comment">// **************************************************************** EA</span>
|
| 282 |
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| 283 |
|
|
<span class="comment">// load ea: to address register</span>
|
| 284 |
|
|
|
| 285 |
|
|
<span class="comment">// (An), (An)+:</span>
|
| 286 |
|
|
p.label(<span class="stringliteral">"MICROPC_LOAD_EA_An"</span>);
|
| 287 |
|
|
p.label(<span class="stringliteral">"MICROPC_LOAD_EA_An_plus"</span>);
|
| 288 |
|
|
|
| 289 |
|
|
p .ADDRESS_FROM_AN_OUTPUT()
|
| 290 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 291 |
|
|
|
| 292 |
|
|
<span class="comment">// -(An):</span>
|
| 293 |
|
|
p.label(<span class="stringliteral">"MICROPC_LOAD_EA_minus_An"</span>);
|
| 294 |
|
|
|
| 295 |
|
|
p .ADDRESS_FROM_AN_OUTPUT();
|
| 296 |
|
|
p .ADDRESS_DECR_BY_SIZE()
|
| 297 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 298 |
|
|
|
| 299 |
|
|
<span class="comment">// (d16, An):</span>
|
| 300 |
|
|
p.label(<span class="stringliteral">"MICROPC_LOAD_EA_d16_An"</span>);
|
| 301 |
|
|
|
| 302 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
|
| 303 |
|
|
|
| 304 |
|
|
p .INDEX_0()
|
| 305 |
|
|
.OFFSET_IMM_16()
|
| 306 |
|
|
.PC_INCR_BY_2()
|
| 307 |
|
|
.ADDRESS_FROM_AN_OUTPUT();
|
| 308 |
|
|
|
| 309 |
|
|
p .ADDRESS_FROM_BASE_INDEX_OFFSET()
|
| 310 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 311 |
|
|
|
| 312 |
|
|
<span class="comment">// (d8, An, Xn):</span>
|
| 313 |
|
|
p.label(<span class="stringliteral">"MICROPC_LOAD_EA_d8_An_Xn"</span>);
|
| 314 |
|
|
|
| 315 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid()
|
| 316 |
|
|
.ADDRESS_FROM_AN_OUTPUT();
|
| 317 |
|
|
|
| 318 |
|
|
p .AN_ADDRESS_FROM_EXTENDED()
|
| 319 |
|
|
.DN_ADDRESS_FROM_EXTENDED()
|
| 320 |
|
|
.OFFSET_IMM_8();
|
| 321 |
|
|
|
| 322 |
|
|
p .AN_ADDRESS_FROM_EXTENDED()
|
| 323 |
|
|
.INDEX_LOAD_EXTENDED()
|
| 324 |
|
|
.PC_INCR_BY_2();
|
| 325 |
|
|
|
| 326 |
|
|
p .ADDRESS_FROM_BASE_INDEX_OFFSET()
|
| 327 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 328 |
|
|
|
| 329 |
|
|
<span class="comment">// (xxx).W:</span>
|
| 330 |
|
|
p.label(<span class="stringliteral">"MICROPC_LOAD_EA_xxx_W"</span>);
|
| 331 |
|
|
|
| 332 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
|
| 333 |
|
|
|
| 334 |
|
|
p .ADDRESS_FROM_IMM_16()
|
| 335 |
|
|
.PC_INCR_BY_2()
|
| 336 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 337 |
|
|
|
| 338 |
|
|
<span class="comment">// (xxx).L:</span>
|
| 339 |
|
|
p.label(<span class="stringliteral">"MICROPC_LOAD_EA_xxx_L"</span>);
|
| 340 |
|
|
|
| 341 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
|
| 342 |
|
|
|
| 343 |
|
|
p .ADDRESS_FROM_IMM_32()
|
| 344 |
|
|
.PC_INCR_BY_4()
|
| 345 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 346 |
|
|
|
| 347 |
|
|
<span class="comment">// (d16, PC):</span>
|
| 348 |
|
|
p.label(<span class="stringliteral">"MICROPC_LOAD_EA_d16_PC"</span>);
|
| 349 |
|
|
|
| 350 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
|
| 351 |
|
|
|
| 352 |
|
|
p .INDEX_0()
|
| 353 |
|
|
.OFFSET_IMM_16();
|
| 354 |
|
|
|
| 355 |
|
|
p .ADDRESS_FROM_PC_INDEX_OFFSET()
|
| 356 |
|
|
.PC_INCR_BY_2()
|
| 357 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 358 |
|
|
|
| 359 |
|
|
<span class="comment">// (d8, PC, Xn):</span>
|
| 360 |
|
|
p.label(<span class="stringliteral">"MICROPC_LOAD_EA_d8_PC_Xn"</span>);
|
| 361 |
|
|
|
| 362 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
|
| 363 |
|
|
|
| 364 |
|
|
p .AN_ADDRESS_FROM_EXTENDED()
|
| 365 |
|
|
.DN_ADDRESS_FROM_EXTENDED()
|
| 366 |
|
|
.OFFSET_IMM_8();
|
| 367 |
|
|
|
| 368 |
|
|
p .AN_ADDRESS_FROM_EXTENDED()
|
| 369 |
|
|
.INDEX_LOAD_EXTENDED();
|
| 370 |
|
|
|
| 371 |
|
|
p .ADDRESS_FROM_PC_INDEX_OFFSET()
|
| 372 |
|
|
.PC_INCR_BY_2()
|
| 373 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 374 |
|
|
|
| 375 |
|
|
p.label(<span class="stringliteral">"MICROPC_LOAD_EA_illegal_command"</span>);
|
| 376 |
|
|
|
| 377 |
|
|
<span class="comment">// call trap</span>
|
| 378 |
|
|
p .TRAP_ILLEGAL_INSTR()
|
| 379 |
|
|
.BRANCH_procedure().PROCEDURE_call_trap();
|
| 380 |
|
|
<span class="comment">// after trap jump to main loop</span>
|
| 381 |
|
|
p .BRANCH_procedure().PROCEDURE_jump_to_main_loop();
|
| 382 |
|
|
|
| 383 |
|
|
|
| 384 |
|
|
<span class="comment">// perform_ea_read: memory, Dn,An,immediate</span>
|
| 385 |
|
|
|
| 386 |
|
|
<span class="comment">// Dn:</span>
|
| 387 |
|
|
p.label(<span class="stringliteral">"MICROPC_PERFORM_EA_READ_Dn"</span>);
|
| 388 |
|
|
|
| 389 |
|
|
p .OP1_FROM_DN()
|
| 390 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 391 |
|
|
|
| 392 |
|
|
<span class="comment">// An:</span>
|
| 393 |
|
|
p.label(<span class="stringliteral">"MICROPC_PERFORM_EA_READ_An"</span>);
|
| 394 |
|
|
|
| 395 |
|
|
p .OP1_FROM_AN()
|
| 396 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 397 |
|
|
|
| 398 |
|
|
<span class="comment">// immediate</span>
|
| 399 |
|
|
p.label(<span class="stringliteral">"MICROPC_PERFORM_EA_READ_imm"</span>);
|
| 400 |
|
|
|
| 401 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
|
| 402 |
|
|
|
| 403 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 404 |
|
|
.PC_INCR_BY_SIZE()
|
| 405 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 406 |
|
|
|
| 407 |
|
|
<span class="comment">// memory</span>
|
| 408 |
|
|
p.label(<span class="stringliteral">"MICROPC_PERFORM_EA_READ_memory"</span>);
|
| 409 |
|
|
|
| 410 |
|
|
p .DO_READ_FLAG_SET()
|
| 411 |
|
|
.BRANCH_procedure().PROCEDURE_wait_finished();
|
| 412 |
|
|
|
| 413 |
|
|
p .DO_READ_FLAG_CLEAR()
|
| 414 |
|
|
.OP1_FROM_DATA()
|
| 415 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 416 |
|
|
|
| 417 |
|
|
<span class="comment">// perform ea write: memory, Dn,An</span>
|
| 418 |
|
|
<span class="comment">// size of operand matters: select in memory write</span>
|
| 419 |
|
|
|
| 420 |
|
|
<span class="comment">// Dn:</span>
|
| 421 |
|
|
p.label(<span class="stringliteral">"MICROPC_PERFORM_EA_WRITE_Dn"</span>);
|
| 422 |
|
|
|
| 423 |
|
|
p .DN_WRITE_ENABLE_SET()
|
| 424 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 425 |
|
|
|
| 426 |
|
|
|
| 427 |
|
|
<span class="comment">// An:</span>
|
| 428 |
|
|
p.label(<span class="stringliteral">"MICROPC_PERFORM_EA_WRITE_An"</span>);
|
| 429 |
|
|
|
| 430 |
|
|
p .AN_WRITE_ENABLE_SET()
|
| 431 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 432 |
|
|
|
| 433 |
|
|
<span class="comment">// memory:</span>
|
| 434 |
|
|
p.label(<span class="stringliteral">"MICROPC_PERFORM_EA_WRITE_memory"</span>);
|
| 435 |
|
|
|
| 436 |
|
|
p .DATA_WRITE_FROM_RESULT()
|
| 437 |
|
|
.DO_WRITE_FLAG_SET()
|
| 438 |
|
|
.BRANCH_procedure().PROCEDURE_wait_finished();
|
| 439 |
|
|
|
| 440 |
|
|
p .DO_WRITE_FLAG_CLEAR()
|
| 441 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 442 |
|
|
|
| 443 |
|
|
<span class="comment">// save ea: (An)+,-(An)</span>
|
| 444 |
|
|
|
| 445 |
|
|
<span class="comment">// (An)+:</span>
|
| 446 |
|
|
p.label(<span class="stringliteral">"MICROPC_SAVE_EA_An_plus"</span>);
|
| 447 |
|
|
|
| 448 |
|
|
p .ADDRESS_INCR_BY_SIZE();
|
| 449 |
|
|
|
| 450 |
|
|
p .AN_INPUT_FROM_ADDRESS()
|
| 451 |
|
|
.AN_WRITE_ENABLE_SET()
|
| 452 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 453 |
|
|
|
| 454 |
|
|
<span class="comment">// -(An)</span>
|
| 455 |
|
|
p.label(<span class="stringliteral">"MICROPC_SAVE_EA_minus_An"</span>);
|
| 456 |
|
|
|
| 457 |
|
|
p .AN_INPUT_FROM_ADDRESS()
|
| 458 |
|
|
.AN_WRITE_ENABLE_SET()
|
| 459 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 460 |
|
|
|
| 461 |
|
|
<span class="comment">// **************************************************************** Instructions</span>
|
| 462 |
|
|
|
| 463 |
|
|
p.label(<span class="stringliteral">"MICROPC_MOVEP_memory_to_register"</span>);
|
| 464 |
|
|
|
| 465 |
|
|
p .SIZE_BYTE().EA_REG_IR_2_0().EA_MOD_INDIRECTOFFSET().EA_TYPE_ALL();
|
| 466 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 467 |
|
|
|
| 468 |
|
|
p .ALU_MOVEP_M2R_1()
|
| 469 |
|
|
.ADDRESS_INCR_BY_2()
|
| 470 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 471 |
|
|
|
| 472 |
|
|
p .ALU_MOVEP_M2R_2()
|
| 473 |
|
|
.ADDRESS_INCR_BY_2()
|
| 474 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 475 |
|
|
|
| 476 |
|
|
p .ALU_MOVEP_M2R_3()
|
| 477 |
|
|
.ADDRESS_INCR_BY_2()
|
| 478 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 479 |
|
|
|
| 480 |
|
|
p .ALU_MOVEP_M2R_4()
|
| 481 |
|
|
.SIZE_1().EA_REG_IR_11_9().EA_MOD_DN().EA_TYPE_ALL();
|
| 482 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 483 |
|
|
|
| 484 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 485 |
|
|
|
| 486 |
|
|
p.label(<span class="stringliteral">"MICROPC_MOVEP_register_to_memory"</span>);
|
| 487 |
|
|
|
| 488 |
|
|
p .SIZE_1_PLUS().EA_REG_IR_11_9().EA_MOD_DN().EA_TYPE_ALL();
|
| 489 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 490 |
|
|
|
| 491 |
|
|
p .SIZE_BYTE().EA_REG_IR_2_0().EA_MOD_INDIRECTOFFSET().EA_TYPE_ALL();
|
| 492 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 493 |
|
|
|
| 494 |
|
|
p .ALU_MOVEP_R2M_1()
|
| 495 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 496 |
|
|
|
| 497 |
|
|
p .ADDRESS_INCR_BY_2()
|
| 498 |
|
|
.ALU_MOVEP_R2M_2()
|
| 499 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 500 |
|
|
|
| 501 |
|
|
p .BRANCH_movep_16().offset(<span class="stringliteral">"movep_16"</span>);
|
| 502 |
|
|
|
| 503 |
|
|
p .ADDRESS_INCR_BY_2()
|
| 504 |
|
|
.ALU_MOVEP_R2M_3()
|
| 505 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 506 |
|
|
|
| 507 |
|
|
p .ADDRESS_INCR_BY_2()
|
| 508 |
|
|
.ALU_MOVEP_R2M_4()
|
| 509 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 510 |
|
|
|
| 511 |
|
|
<span class="comment">// jump here if word operation</span>
|
| 512 |
|
|
p .label(<span class="stringliteral">"movep_16"</span>);
|
| 513 |
|
|
|
| 514 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 515 |
|
|
|
| 516 |
|
|
p.label(<span class="stringliteral">"MICROPC_MOVEM_memory_to_register"</span>);
|
| 517 |
|
|
|
| 518 |
|
|
p .SIZE_WORD().EA_REG_3b100().EA_MOD_3b111().EA_TYPE_ALL()
|
| 519 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid_32();
|
| 520 |
|
|
|
| 521 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 522 |
|
|
.PC_INCR_BY_SIZE();
|
| 523 |
|
|
|
| 524 |
|
|
p .MOVEM_REG_FROM_OP1()
|
| 525 |
|
|
.MOVEM_MODREG_LOAD_0()
|
| 526 |
|
|
.MOVEM_LOOP_LOAD_0()
|
| 527 |
|
|
.SIZE_2().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_CONTROL_POSTINC();
|
| 528 |
|
|
|
| 529 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 530 |
|
|
|
| 531 |
|
|
<span class="comment">// push current micro pc on stack</span>
|
| 532 |
|
|
p .BRANCH_procedure().PROCEDURE_push_micropc();
|
| 533 |
|
|
|
| 534 |
|
|
<span class="comment">// check if loop finished</span>
|
| 535 |
|
|
p .BRANCH_movem_loop().offset(<span class="stringliteral">"movem_memory_to_register_loop"</span>);
|
| 536 |
|
|
|
| 537 |
|
|
<span class="comment">// check if operation on register required</span>
|
| 538 |
|
|
p .BRANCH_movem_reg().offset(<span class="stringliteral">"movem_memory_to_register_reg"</span>);
|
| 539 |
|
|
|
| 540 |
|
|
p .SIZE_2().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_CONTROL_POSTINC();
|
| 541 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 542 |
|
|
|
| 543 |
|
|
p .ALU_SIGN_EXTEND()
|
| 544 |
|
|
.ADDRESS_INCR_BY_SIZE()
|
| 545 |
|
|
.SIZE_LONG().EA_REG_MOVEM_REG_2_0().EA_MOD_MOVEM_MOD_5_3().EA_TYPE_DN_AN();
|
| 546 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 547 |
|
|
|
| 548 |
|
|
<span class="comment">// jump here if operation on register not required</span>
|
| 549 |
|
|
p .label(<span class="stringliteral">"movem_memory_to_register_reg"</span>);
|
| 550 |
|
|
|
| 551 |
|
|
p .MOVEM_MODREG_INCR_BY_1()
|
| 552 |
|
|
.MOVEM_REG_SHIFT_RIGHT()
|
| 553 |
|
|
.MOVEM_LOOP_INCR_BY_1()
|
| 554 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 555 |
|
|
|
| 556 |
|
|
<span class="comment">// jump here if loop finished</span>
|
| 557 |
|
|
p .label(<span class="stringliteral">"movem_memory_to_register_loop"</span>);
|
| 558 |
|
|
|
| 559 |
|
|
p .BRANCH_procedure().PROCEDURE_pop_micropc()
|
| 560 |
|
|
.SIZE_2().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_CONTROL_POSTINC();
|
| 561 |
|
|
|
| 562 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea()
|
| 563 |
|
|
.ADDRESS_DECR_BY_SIZE();
|
| 564 |
|
|
|
| 565 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 566 |
|
|
|
| 567 |
|
|
p.label(<span class="stringliteral">"MICROPC_MOVEM_register_to_memory_predecrement"</span>);
|
| 568 |
|
|
|
| 569 |
|
|
p .SIZE_WORD().EA_REG_3b100().EA_MOD_3b111().EA_TYPE_ALL()
|
| 570 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid_32();
|
| 571 |
|
|
|
| 572 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 573 |
|
|
.PC_INCR_BY_SIZE();
|
| 574 |
|
|
|
| 575 |
|
|
p .MOVEM_REG_FROM_OP1()
|
| 576 |
|
|
.MOVEM_MODREG_LOAD_6b001111()
|
| 577 |
|
|
.MOVEM_LOOP_LOAD_0()
|
| 578 |
|
|
.SIZE_2().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_CONTROLALTER_PREDEC();
|
| 579 |
|
|
|
| 580 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 581 |
|
|
|
| 582 |
|
|
<span class="comment">// push current micro pc on stack</span>
|
| 583 |
|
|
p .BRANCH_procedure().PROCEDURE_push_micropc();
|
| 584 |
|
|
|
| 585 |
|
|
<span class="comment">// check if loop finished</span>
|
| 586 |
|
|
p .BRANCH_movem_loop().offset(<span class="stringliteral">"movem_register_to_memory_predecrement_loop"</span>);
|
| 587 |
|
|
|
| 588 |
|
|
<span class="comment">// check if operation on register required</span>
|
| 589 |
|
|
p .BRANCH_movem_reg().offset(<span class="stringliteral">"movem_register_to_memory_predecrement_reg"</span>);
|
| 590 |
|
|
|
| 591 |
|
|
p .SIZE_2().EA_REG_MOVEM_REG_2_0().EA_MOD_MOVEM_MOD_5_3().EA_TYPE_DN_AN();
|
| 592 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 593 |
|
|
|
| 594 |
|
|
p .ALU_SIGN_EXTEND()
|
| 595 |
|
|
.SIZE_2().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_CONTROLALTER_PREDEC();
|
| 596 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 597 |
|
|
|
| 598 |
|
|
p .ADDRESS_DECR_BY_SIZE();
|
| 599 |
|
|
|
| 600 |
|
|
<span class="comment">// jump here if operation on register not required</span>
|
| 601 |
|
|
p .label(<span class="stringliteral">"movem_register_to_memory_predecrement_reg"</span>);
|
| 602 |
|
|
|
| 603 |
|
|
p .MOVEM_MODREG_DECR_BY_1()
|
| 604 |
|
|
.MOVEM_REG_SHIFT_RIGHT()
|
| 605 |
|
|
.MOVEM_LOOP_INCR_BY_1()
|
| 606 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 607 |
|
|
|
| 608 |
|
|
<span class="comment">// jump here if loop finished</span>
|
| 609 |
|
|
p .label(<span class="stringliteral">"movem_register_to_memory_predecrement_loop"</span>);
|
| 610 |
|
|
|
| 611 |
|
|
p .BRANCH_procedure().PROCEDURE_pop_micropc()
|
| 612 |
|
|
.ADDRESS_INCR_BY_SIZE();
|
| 613 |
|
|
|
| 614 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 615 |
|
|
|
| 616 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 617 |
|
|
|
| 618 |
|
|
p.label(<span class="stringliteral">"MICROPC_MOVEM_register_to_memory_control"</span>);
|
| 619 |
|
|
|
| 620 |
|
|
p .SIZE_WORD().EA_REG_3b100().EA_MOD_3b111().EA_TYPE_ALL()
|
| 621 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid_32();
|
| 622 |
|
|
|
| 623 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 624 |
|
|
.PC_INCR_BY_SIZE();
|
| 625 |
|
|
|
| 626 |
|
|
p .MOVEM_REG_FROM_OP1()
|
| 627 |
|
|
.MOVEM_MODREG_LOAD_0()
|
| 628 |
|
|
.MOVEM_LOOP_LOAD_0()
|
| 629 |
|
|
.SIZE_2().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_CONTROLALTER_PREDEC();
|
| 630 |
|
|
|
| 631 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 632 |
|
|
|
| 633 |
|
|
<span class="comment">// push current micro pc on stack</span>
|
| 634 |
|
|
p .BRANCH_procedure().PROCEDURE_push_micropc();
|
| 635 |
|
|
|
| 636 |
|
|
<span class="comment">// check if loop finished</span>
|
| 637 |
|
|
p .BRANCH_movem_loop().offset(<span class="stringliteral">"movem_register_to_memory_control_loop"</span>);
|
| 638 |
|
|
|
| 639 |
|
|
<span class="comment">// check if operation on register required</span>
|
| 640 |
|
|
p .BRANCH_movem_reg().offset(<span class="stringliteral">"movem_register_to_memory_control_reg"</span>);
|
| 641 |
|
|
|
| 642 |
|
|
p .SIZE_2().EA_REG_MOVEM_REG_2_0().EA_MOD_MOVEM_MOD_5_3().EA_TYPE_DN_AN();
|
| 643 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 644 |
|
|
|
| 645 |
|
|
p .ALU_SIGN_EXTEND()
|
| 646 |
|
|
.SIZE_2().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_CONTROLALTER_PREDEC();
|
| 647 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 648 |
|
|
|
| 649 |
|
|
p .ADDRESS_INCR_BY_SIZE();
|
| 650 |
|
|
|
| 651 |
|
|
<span class="comment">// jump here if operation on register not required</span>
|
| 652 |
|
|
p .label(<span class="stringliteral">"movem_register_to_memory_control_reg"</span>);
|
| 653 |
|
|
|
| 654 |
|
|
p .MOVEM_MODREG_INCR_BY_1()
|
| 655 |
|
|
.MOVEM_REG_SHIFT_RIGHT()
|
| 656 |
|
|
.MOVEM_LOOP_INCR_BY_1()
|
| 657 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 658 |
|
|
|
| 659 |
|
|
<span class="comment">// jump here if loop finished</span>
|
| 660 |
|
|
p .label(<span class="stringliteral">"movem_register_to_memory_control_loop"</span>);
|
| 661 |
|
|
|
| 662 |
|
|
p .BRANCH_procedure().PROCEDURE_pop_micropc();
|
| 663 |
|
|
|
| 664 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 665 |
|
|
|
| 666 |
|
|
p.label(<span class="stringliteral">"MICROPC_LEA"</span>);
|
| 667 |
|
|
|
| 668 |
|
|
p .SIZE_LONG().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_CONTROL();
|
| 669 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 670 |
|
|
|
| 671 |
|
|
p .OP1_FROM_ADDRESS();
|
| 672 |
|
|
|
| 673 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 674 |
|
|
.SIZE_LONG().EA_REG_IR_11_9().EA_MOD_AN().EA_TYPE_ALL();
|
| 675 |
|
|
|
| 676 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 677 |
|
|
|
| 678 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 679 |
|
|
|
| 680 |
|
|
p.label(<span class="stringliteral">"MICROPC_PEA"</span>);
|
| 681 |
|
|
|
| 682 |
|
|
p .SIZE_LONG().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_CONTROL();
|
| 683 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 684 |
|
|
|
| 685 |
|
|
p .OP1_FROM_ADDRESS();
|
| 686 |
|
|
|
| 687 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 688 |
|
|
.SIZE_LONG().EA_REG_3b111().EA_MOD_PREDEC().EA_TYPE_ALL();
|
| 689 |
|
|
|
| 690 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 691 |
|
|
|
| 692 |
|
|
p .BRANCH_procedure().PROCEDURE_call_write();
|
| 693 |
|
|
|
| 694 |
|
|
p.label(<span class="stringliteral">"MICROPC_ANDI_EORI_ORI_ADDI_SUBI"</span>);
|
| 695 |
|
|
<span class="comment">//+++</span>
|
| 696 |
|
|
p .SIZE_3().EA_REG_3b100().EA_MOD_3b111().EA_TYPE_ALL()
|
| 697 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid_32();
|
| 698 |
|
|
|
| 699 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 700 |
|
|
.PC_INCR_BY_SIZE()
|
| 701 |
|
|
|
| 702 |
|
|
.SIZE_3().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATAALTER();
|
| 703 |
|
|
|
| 704 |
|
|
p .OP2_FROM_OP1()
|
| 705 |
|
|
.BRANCH_procedure().PROCEDURE_call_read();
|
| 706 |
|
|
|
| 707 |
|
|
p .ALU_ARITHMETIC_LOGIC()
|
| 708 |
|
|
.BRANCH_procedure().PROCEDURE_call_write();
|
| 709 |
|
|
|
| 710 |
|
|
p.label(<span class="stringliteral">"MICROPC_ORI_to_CCR_ORI_to_SR_ANDI_to_CCR_ANDI_to_SR_EORI_to_CCR_EORI_to_SR"</span>);
|
| 711 |
|
|
<span class="comment">//+</span>
|
| 712 |
|
|
p .SIZE_3().EA_REG_3b100().EA_MOD_3b111().EA_TYPE_ALL()
|
| 713 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid_32();
|
| 714 |
|
|
|
| 715 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 716 |
|
|
.PC_INCR_BY_SIZE();
|
| 717 |
|
|
|
| 718 |
|
|
p .OP2_FROM_OP1()
|
| 719 |
|
|
.OP1_FROM_SR();
|
| 720 |
|
|
|
| 721 |
|
|
p .ALU_ARITHMETIC_LOGIC();
|
| 722 |
|
|
|
| 723 |
|
|
p .OP1_FROM_RESULT();
|
| 724 |
|
|
|
| 725 |
|
|
p .ALU_MOVE_TO_CCR_SR_RTE_RTR_STOP_LOGIC_TO_CCR_SR()
|
| 726 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 727 |
|
|
|
| 728 |
|
|
p.label(<span class="stringliteral">"MICROPC_CMPI"</span>);
|
| 729 |
|
|
<span class="comment">//+</span>
|
| 730 |
|
|
p .SIZE_3().EA_REG_3b100().EA_MOD_3b111().EA_TYPE_ALL()
|
| 731 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid_32();
|
| 732 |
|
|
|
| 733 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 734 |
|
|
.PC_INCR_BY_SIZE()
|
| 735 |
|
|
|
| 736 |
|
|
.SIZE_3().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATAALTER();
|
| 737 |
|
|
|
| 738 |
|
|
p .OP2_FROM_OP1()
|
| 739 |
|
|
.BRANCH_procedure().PROCEDURE_call_read();
|
| 740 |
|
|
|
| 741 |
|
|
p .ALU_ARITHMETIC_LOGIC()
|
| 742 |
|
|
.BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 743 |
|
|
|
| 744 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 745 |
|
|
|
| 746 |
|
|
p.label(<span class="stringliteral">"MICROPC_ABCD_SBCD_ADDX_SUBX"</span>);
|
| 747 |
|
|
|
| 748 |
|
|
p .SIZE_3().EA_REG_IR_2_0().EA_MOD_DN_PREDEC().EA_TYPE_ALL();
|
| 749 |
|
|
|
| 750 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 751 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 752 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 753 |
|
|
|
| 754 |
|
|
p .OP2_FROM_OP1()
|
| 755 |
|
|
.SIZE_3().EA_REG_IR_11_9().EA_MOD_DN_PREDEC().EA_TYPE_ALL();
|
| 756 |
|
|
|
| 757 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 758 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 759 |
|
|
|
| 760 |
17 |
alfik |
p .ALU_ABCD_SBCD_ADDX_SUBX_prepare();
|
| 761 |
12 |
alfik |
p .ALU_ABCD_SBCD_ADDX_SUBX()
|
| 762 |
|
|
.BRANCH_procedure().PROCEDURE_call_write();
|
| 763 |
|
|
|
| 764 |
|
|
p.label(<span class="stringliteral">"MICROPC_EXG"</span>);
|
| 765 |
|
|
|
| 766 |
|
|
p .SIZE_LONG().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DN_AN();
|
| 767 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 768 |
|
|
|
| 769 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 770 |
|
|
.SIZE_LONG().EA_REG_IR_11_9().EA_MOD_DN_AN_EXG().EA_TYPE_ALL();
|
| 771 |
|
|
|
| 772 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 773 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 774 |
|
|
|
| 775 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 776 |
|
|
.SIZE_LONG().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DN_AN();
|
| 777 |
|
|
|
| 778 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 779 |
|
|
|
| 780 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 781 |
|
|
|
| 782 |
|
|
|
| 783 |
|
|
p.label(<span class="stringliteral">"MICROPC_CMPM"</span>);
|
| 784 |
|
|
|
| 785 |
|
|
p .SIZE_3().EA_REG_IR_2_0().EA_MOD_POSTINC().EA_TYPE_ALL();
|
| 786 |
|
|
|
| 787 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 788 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 789 |
|
|
|
| 790 |
|
|
p .OP2_FROM_OP1()
|
| 791 |
|
|
.SIZE_3().EA_REG_IR_11_9().EA_MOD_POSTINC().EA_TYPE_ALL();
|
| 792 |
|
|
|
| 793 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 794 |
|
|
|
| 795 |
|
|
p .ALU_ARITHMETIC_LOGIC()
|
| 796 |
|
|
.BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 797 |
|
|
|
| 798 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 799 |
|
|
|
| 800 |
|
|
p.label(<span class="stringliteral">"MICROPC_ASL_LSL_ROL_ROXL_ASR_LSR_ROR_ROXR_all_immediate_register"</span>);
|
| 801 |
|
|
|
| 802 |
|
|
p .SIZE_3().EA_REG_IR_11_9().EA_MOD_DN().EA_TYPE_ALL();
|
| 803 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 804 |
|
|
|
| 805 |
|
|
p .OP2_FROM_OP1()
|
| 806 |
|
|
.SIZE_3().EA_REG_IR_2_0().EA_MOD_DN().EA_TYPE_ALL();
|
| 807 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 808 |
|
|
|
| 809 |
|
|
p .OP2_LOAD_COUNT();
|
| 810 |
|
|
|
| 811 |
|
|
p .ALU_ASL_LSL_ROL_ROXL_ASR_LSR_ROR_ROXR_prepare();
|
| 812 |
|
|
|
| 813 |
|
|
p .BRANCH_procedure().PROCEDURE_push_micropc();
|
| 814 |
|
|
|
| 815 |
|
|
p .BRANCH_operand2().offset(<span class="stringliteral">"shift_rotate_immediate_loop"</span>);
|
| 816 |
|
|
|
| 817 |
|
|
p .ALU_ASL_LSL_ROL_ROXL_ASR_LSR_ROR_ROXR();
|
| 818 |
|
|
p .OP1_FROM_RESULT()
|
| 819 |
|
|
.OP2_DECR_BY_1()
|
| 820 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 821 |
|
|
|
| 822 |
|
|
<span class="comment">// jump here if loop finished</span>
|
| 823 |
|
|
p .label(<span class="stringliteral">"shift_rotate_immediate_loop"</span>);
|
| 824 |
|
|
|
| 825 |
|
|
p .BRANCH_procedure().PROCEDURE_pop_micropc();
|
| 826 |
|
|
|
| 827 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 828 |
|
|
|
| 829 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 830 |
|
|
|
| 831 |
|
|
p.label(<span class="stringliteral">"MICROPC_ASL_LSL_ROL_ROXL_ASR_LSR_ROR_ROXR_all_memory"</span>);
|
| 832 |
|
|
|
| 833 |
|
|
p .SIZE_WORD().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_MEMORYALTER();
|
| 834 |
|
|
|
| 835 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 836 |
|
|
|
| 837 |
|
|
p .OP2_LOAD_1();
|
| 838 |
|
|
|
| 839 |
|
|
p .ALU_ASL_LSL_ROL_ROXL_ASR_LSR_ROR_ROXR_prepare();
|
| 840 |
|
|
p .ALU_ASL_LSL_ROL_ROXL_ASR_LSR_ROR_ROXR();
|
| 841 |
|
|
|
| 842 |
|
|
p .BRANCH_procedure().PROCEDURE_call_write();
|
| 843 |
|
|
|
| 844 |
|
|
p.label(<span class="stringliteral">"MICROPC_MOVE"</span>);
|
| 845 |
|
|
|
| 846 |
|
|
p .SIZE_4().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_ALL();
|
| 847 |
|
|
|
| 848 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 849 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 850 |
|
|
|
| 851 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 852 |
|
|
.SIZE_4().EA_REG_IR_11_9().EA_MOD_IR_8_6().EA_TYPE_DATAALTER();
|
| 853 |
|
|
|
| 854 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 855 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 856 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 857 |
|
|
p .ALU_MOVE()
|
| 858 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 859 |
|
|
|
| 860 |
|
|
p.label(<span class="stringliteral">"MICROPC_MOVEA"</span>);
|
| 861 |
|
|
|
| 862 |
|
|
p .SIZE_4().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_ALL();
|
| 863 |
|
|
|
| 864 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 865 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 866 |
|
|
|
| 867 |
|
|
p .ALU_SIGN_EXTEND()
|
| 868 |
|
|
.SIZE_4().EA_REG_IR_11_9().EA_MOD_AN().EA_TYPE_ALL();
|
| 869 |
|
|
|
| 870 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 871 |
|
|
|
| 872 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 873 |
|
|
|
| 874 |
|
|
p.label(<span class="stringliteral">"MICROPC_EOR"</span>);
|
| 875 |
|
|
|
| 876 |
|
|
p .SIZE_3().EA_REG_IR_11_9().EA_MOD_DN().EA_TYPE_ALL();
|
| 877 |
|
|
|
| 878 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 879 |
|
|
|
| 880 |
|
|
p .OP2_FROM_OP1()
|
| 881 |
|
|
.SIZE_3().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATAALTER();
|
| 882 |
|
|
|
| 883 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 884 |
|
|
|
| 885 |
|
|
p .ALU_ARITHMETIC_LOGIC()
|
| 886 |
|
|
.BRANCH_procedure().PROCEDURE_call_write();
|
| 887 |
|
|
|
| 888 |
|
|
p.label(<span class="stringliteral">"MICROPC_ADD_to_mem_SUB_to_mem_AND_to_mem_OR_to_mem"</span>);
|
| 889 |
|
|
|
| 890 |
|
|
p .SIZE_3().EA_REG_IR_11_9().EA_MOD_DN().EA_TYPE_ALL();
|
| 891 |
|
|
|
| 892 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 893 |
|
|
|
| 894 |
|
|
p .OP2_FROM_OP1()
|
| 895 |
|
|
.SIZE_3().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_MEMORYALTER();
|
| 896 |
|
|
|
| 897 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 898 |
|
|
|
| 899 |
|
|
p .ALU_ARITHMETIC_LOGIC()
|
| 900 |
|
|
.BRANCH_procedure().PROCEDURE_call_write();
|
| 901 |
|
|
|
| 902 |
|
|
p.label(<span class="stringliteral">"MICROPC_ADD_to_Dn_SUB_to_Dn_AND_to_Dn_OR_to_Dn"</span>);
|
| 903 |
|
|
|
| 904 |
|
|
p .SIZE_3().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_ALL();
|
| 905 |
|
|
|
| 906 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 907 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 908 |
|
|
|
| 909 |
|
|
p .OP2_FROM_OP1()
|
| 910 |
|
|
.SIZE_3().EA_REG_IR_11_9().EA_MOD_DN().EA_TYPE_ALL();
|
| 911 |
|
|
|
| 912 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 913 |
|
|
|
| 914 |
|
|
p .ALU_ARITHMETIC_LOGIC()
|
| 915 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 916 |
|
|
|
| 917 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 918 |
|
|
|
| 919 |
|
|
p.label(<span class="stringliteral">"MICROPC_CMP"</span>);
|
| 920 |
|
|
|
| 921 |
|
|
p .SIZE_3().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_ALL();
|
| 922 |
|
|
|
| 923 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 924 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 925 |
|
|
|
| 926 |
|
|
p .OP2_FROM_OP1()
|
| 927 |
|
|
.SIZE_3().EA_REG_IR_11_9().EA_MOD_DN().EA_TYPE_ALL();
|
| 928 |
|
|
|
| 929 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 930 |
|
|
|
| 931 |
|
|
p .ALU_ARITHMETIC_LOGIC()
|
| 932 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 933 |
|
|
|
| 934 |
|
|
p.label(<span class="stringliteral">"MICROPC_ADDA_SUBA"</span>);
|
| 935 |
|
|
|
| 936 |
|
|
p .SIZE_5().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_ALL();
|
| 937 |
|
|
|
| 938 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 939 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 940 |
|
|
|
| 941 |
|
|
p .OP2_FROM_OP1()
|
| 942 |
|
|
.SIZE_LONG().EA_REG_IR_11_9().EA_MOD_AN().EA_TYPE_ALL();
|
| 943 |
|
|
|
| 944 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 945 |
|
|
|
| 946 |
|
|
p .ALU_ADDA_SUBA_CMPA_ADDQ_SUBQ()
|
| 947 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 948 |
|
|
|
| 949 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 950 |
|
|
|
| 951 |
|
|
p.label(<span class="stringliteral">"MICROPC_CMPA"</span>);
|
| 952 |
|
|
|
| 953 |
|
|
p .SIZE_5().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_ALL();
|
| 954 |
|
|
|
| 955 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 956 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 957 |
|
|
|
| 958 |
|
|
p .OP2_FROM_OP1()
|
| 959 |
|
|
.SIZE_LONG().EA_REG_IR_11_9().EA_MOD_AN().EA_TYPE_ALL();
|
| 960 |
|
|
|
| 961 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 962 |
|
|
|
| 963 |
|
|
p .ALU_ADDA_SUBA_CMPA_ADDQ_SUBQ()
|
| 964 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 965 |
|
|
|
| 966 |
|
|
p.label(<span class="stringliteral">"MICROPC_CHK"</span>);
|
| 967 |
|
|
|
| 968 |
|
|
p .SIZE_WORD().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATA();
|
| 969 |
|
|
|
| 970 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 971 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 972 |
|
|
|
| 973 |
|
|
p .OP2_FROM_OP1()
|
| 974 |
|
|
.SIZE_WORD().EA_REG_IR_11_9().EA_MOD_DN().EA_TYPE_ALL();
|
| 975 |
|
|
|
| 976 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 977 |
|
|
|
| 978 |
|
|
p .ALU_CHK();
|
| 979 |
|
|
|
| 980 |
13 |
alfik |
p .BRANCH_alu_signal().offset(<span class="stringliteral">"chk_no_trap"</span>);
|
| 981 |
12 |
alfik |
p .TRAP_CHK()
|
| 982 |
|
|
.BRANCH_procedure().PROCEDURE_call_trap();
|
| 983 |
|
|
<span class="comment">// after return continue</span>
|
| 984 |
|
|
|
| 985 |
|
|
<span class="comment">// jump here if no trap</span>
|
| 986 |
|
|
p .label(<span class="stringliteral">"chk_no_trap"</span>);
|
| 987 |
|
|
|
| 988 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 989 |
|
|
|
| 990 |
|
|
p.label(<span class="stringliteral">"MICROPC_MULS_MULU_DIVS_DIVU"</span>);
|
| 991 |
|
|
|
| 992 |
|
|
p .SIZE_WORD().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATA();
|
| 993 |
|
|
|
| 994 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 995 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 996 |
|
|
|
| 997 |
|
|
p .OP2_FROM_OP1()
|
| 998 |
|
|
.SIZE_LONG().EA_REG_IR_11_9().EA_MOD_DN().EA_TYPE_ALL();
|
| 999 |
|
|
|
| 1000 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 1001 |
|
|
|
| 1002 |
13 |
alfik |
p .ALU_MULS_MULU_DIVS_DIVU();
|
| 1003 |
12 |
alfik |
|
| 1004 |
13 |
alfik |
p .BRANCH_alu_signal().offset(<span class="stringliteral">"div_no_div_by_zero_trap"</span>);
|
| 1005 |
12 |
alfik |
p .TRAP_DIV_BY_ZERO()
|
| 1006 |
|
|
.BRANCH_procedure().PROCEDURE_call_trap();
|
| 1007 |
|
|
<span class="comment">// return after return</span>
|
| 1008 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1009 |
|
|
|
| 1010 |
|
|
<span class="comment">// jump here if no trap</span>
|
| 1011 |
|
|
p .label(<span class="stringliteral">"div_no_div_by_zero_trap"</span>);
|
| 1012 |
|
|
|
| 1013 |
|
|
<span class="comment">// push current micro pc on stack</span>
|
| 1014 |
|
|
p .BRANCH_procedure().PROCEDURE_push_micropc();
|
| 1015 |
|
|
|
| 1016 |
13 |
alfik |
<span class="comment">// check if operation finished</span>
|
| 1017 |
|
|
p .BRANCH_alu_mult_div_ready().offset(<span class="stringliteral">"mult_div_loop"</span>);
|
| 1018 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1019 |
12 |
alfik |
|
| 1020 |
|
|
<span class="comment">// jump here after first loop finished</span>
|
| 1021 |
13 |
alfik |
p .label(<span class="stringliteral">"mult_div_loop"</span>);
|
| 1022 |
12 |
alfik |
|
| 1023 |
|
|
p .ALU_MULS_MULU_DIVS_DIVU()
|
| 1024 |
|
|
.BRANCH_procedure().PROCEDURE_pop_micropc();
|
| 1025 |
|
|
|
| 1026 |
13 |
alfik |
p .BRANCH_alu_signal().offset(<span class="stringliteral">"mult_div_no_overflow"</span>);
|
| 1027 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1028 |
12 |
alfik |
|
| 1029 |
|
|
<span class="comment">// jump here if overflow</span>
|
| 1030 |
13 |
alfik |
p .label(<span class="stringliteral">"mult_div_no_overflow"</span>);
|
| 1031 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 1032 |
12 |
alfik |
p .BRANCH_procedure().PROCEDURE_return();
|
| 1033 |
|
|
|
| 1034 |
|
|
p.label(<span class="stringliteral">"MICROPC_MOVEQ"</span>);
|
| 1035 |
|
|
|
| 1036 |
|
|
p .OP1_MOVEQ()
|
| 1037 |
|
|
.SIZE_LONG().EA_REG_IR_11_9().EA_MOD_DN().EA_TYPE_ALL();
|
| 1038 |
|
|
|
| 1039 |
|
|
p .ALU_MOVE()
|
| 1040 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 1041 |
|
|
|
| 1042 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1043 |
|
|
|
| 1044 |
|
|
p.label(<span class="stringliteral">"MICROPC_BCHG_BCLR_BSET_immediate"</span>);
|
| 1045 |
|
|
|
| 1046 |
|
|
p .SIZE_BYTE().EA_REG_3b100().EA_MOD_3b111().EA_TYPE_ALL()
|
| 1047 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid_32();
|
| 1048 |
|
|
|
| 1049 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 1050 |
|
|
.PC_INCR_BY_SIZE();
|
| 1051 |
|
|
|
| 1052 |
|
|
p .OP2_FROM_OP1()
|
| 1053 |
|
|
.SIZE_6().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATAALTER();
|
| 1054 |
|
|
|
| 1055 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 1056 |
|
|
|
| 1057 |
|
|
p .ALU_BCHG_BCLR_BSET_BTST()
|
| 1058 |
|
|
.BRANCH_procedure().PROCEDURE_call_write();
|
| 1059 |
|
|
|
| 1060 |
|
|
p.label(<span class="stringliteral">"MICROPC_BTST_immediate"</span>);
|
| 1061 |
|
|
|
| 1062 |
|
|
p .SIZE_BYTE().EA_REG_3b100().EA_MOD_3b111().EA_TYPE_ALL()
|
| 1063 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid_32();
|
| 1064 |
|
|
|
| 1065 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 1066 |
|
|
.PC_INCR_BY_SIZE();
|
| 1067 |
|
|
|
| 1068 |
|
|
p .OP2_FROM_OP1()
|
| 1069 |
|
|
.SIZE_6().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATA();
|
| 1070 |
|
|
|
| 1071 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 1072 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 1073 |
|
|
|
| 1074 |
|
|
p .ALU_BCHG_BCLR_BSET_BTST()
|
| 1075 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 1076 |
|
|
|
| 1077 |
|
|
p.label(<span class="stringliteral">"MICROPC_BCHG_BCLR_BSET_register"</span>);
|
| 1078 |
|
|
|
| 1079 |
|
|
p .SIZE_6().EA_REG_IR_11_9().EA_MOD_DN().EA_TYPE_ALL();
|
| 1080 |
|
|
|
| 1081 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 1082 |
|
|
|
| 1083 |
|
|
p .OP2_FROM_OP1()
|
| 1084 |
|
|
.SIZE_6().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATAALTER();
|
| 1085 |
|
|
|
| 1086 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 1087 |
|
|
|
| 1088 |
|
|
p .ALU_BCHG_BCLR_BSET_BTST()
|
| 1089 |
|
|
.BRANCH_procedure().PROCEDURE_call_write();
|
| 1090 |
|
|
|
| 1091 |
|
|
p.label(<span class="stringliteral">"MICROPC_BTST_register"</span>);
|
| 1092 |
|
|
|
| 1093 |
|
|
p .SIZE_6().EA_REG_IR_11_9().EA_MOD_DN().EA_TYPE_ALL();
|
| 1094 |
|
|
|
| 1095 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 1096 |
|
|
|
| 1097 |
|
|
p .OP2_FROM_OP1()
|
| 1098 |
|
|
.SIZE_6().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATA();
|
| 1099 |
|
|
|
| 1100 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 1101 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 1102 |
|
|
|
| 1103 |
|
|
p .ALU_BCHG_BCLR_BSET_BTST()
|
| 1104 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 1105 |
|
|
|
| 1106 |
|
|
p.label(<span class="stringliteral">"MICROPC_TAS"</span>);
|
| 1107 |
|
|
|
| 1108 |
|
|
p .READ_MODIFY_WRITE_FLAG_SET()
|
| 1109 |
|
|
.SIZE_BYTE().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATAALTER();
|
| 1110 |
|
|
|
| 1111 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 1112 |
|
|
|
| 1113 |
|
|
p .ALU_TAS()
|
| 1114 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 1115 |
|
|
|
| 1116 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 1117 |
|
|
|
| 1118 |
|
|
p .READ_MODIFY_WRITE_FLAG_CLEAR()
|
| 1119 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 1120 |
|
|
|
| 1121 |
|
|
p.label(<span class="stringliteral">"MICROPC_NEGX_CLR_NEG_NOT_NBCD"</span>);
|
| 1122 |
|
|
|
| 1123 |
|
|
p .SIZE_3().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATAALTER();
|
| 1124 |
|
|
|
| 1125 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 1126 |
|
|
|
| 1127 |
|
|
p .ALU_NEGX_CLR_NEG_NOT_NBCD_SWAP_EXT()
|
| 1128 |
|
|
.BRANCH_procedure().PROCEDURE_call_write();
|
| 1129 |
|
|
|
| 1130 |
|
|
p.label(<span class="stringliteral">"MICROPC_SWAP_EXT"</span>);
|
| 1131 |
|
|
|
| 1132 |
|
|
p .SIZE_2().EA_REG_IR_2_0().EA_MOD_DN().EA_TYPE_ALL();
|
| 1133 |
|
|
|
| 1134 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 1135 |
|
|
|
| 1136 |
|
|
p .ALU_NEGX_CLR_NEG_NOT_NBCD_SWAP_EXT()
|
| 1137 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 1138 |
|
|
|
| 1139 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1140 |
|
|
|
| 1141 |
|
|
p.label(<span class="stringliteral">"MICROPC_TST"</span>);
|
| 1142 |
|
|
|
| 1143 |
|
|
p .SIZE_3().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATAALTER();
|
| 1144 |
|
|
|
| 1145 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 1146 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 1147 |
|
|
|
| 1148 |
|
|
p .ALU_MOVE()
|
| 1149 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 1150 |
|
|
|
| 1151 |
|
|
p.label(<span class="stringliteral">"MICROPC_ADDQ_SUBQ_not_An"</span>);
|
| 1152 |
|
|
|
| 1153 |
|
|
p .OP2_ADDQ_SUBQ()
|
| 1154 |
|
|
.SIZE_3().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATAALTER();
|
| 1155 |
|
|
|
| 1156 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 1157 |
|
|
|
| 1158 |
|
|
p .ALU_ARITHMETIC_LOGIC()
|
| 1159 |
|
|
.BRANCH_procedure().PROCEDURE_call_write();
|
| 1160 |
|
|
|
| 1161 |
|
|
p.label(<span class="stringliteral">"MICROPC_ADDQ_SUBQ_An"</span>);
|
| 1162 |
|
|
|
| 1163 |
|
|
p .OP2_ADDQ_SUBQ()
|
| 1164 |
|
|
.SIZE_LONG().EA_REG_IR_2_0().EA_MOD_AN().EA_TYPE_ALL();
|
| 1165 |
|
|
|
| 1166 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 1167 |
|
|
|
| 1168 |
|
|
p .ALU_ADDA_SUBA_CMPA_ADDQ_SUBQ()
|
| 1169 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 1170 |
|
|
|
| 1171 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1172 |
|
|
|
| 1173 |
|
|
p.label(<span class="stringliteral">"MICROPC_Scc"</span>);
|
| 1174 |
|
|
|
| 1175 |
|
|
p .BRANCH_condition_0().offset(<span class="stringliteral">"scc_condition_0"</span>);
|
| 1176 |
|
|
p .OP1_LOAD_ONES();
|
| 1177 |
|
|
|
| 1178 |
|
|
<span class="comment">// jump here if condition is false</span>
|
| 1179 |
|
|
p .label(<span class="stringliteral">"scc_condition_0"</span>);
|
| 1180 |
|
|
|
| 1181 |
|
|
p .BRANCH_condition_1().offset(<span class="stringliteral">"scc_condition_1"</span>);
|
| 1182 |
|
|
p .OP1_LOAD_ZEROS();
|
| 1183 |
|
|
|
| 1184 |
|
|
<span class="comment">// jump here if condition is true</span>
|
| 1185 |
|
|
p .label(<span class="stringliteral">"scc_condition_1"</span>);
|
| 1186 |
|
|
|
| 1187 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 1188 |
|
|
.SIZE_BYTE().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATAALTER();
|
| 1189 |
|
|
|
| 1190 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 1191 |
|
|
p .BRANCH_procedure().PROCEDURE_call_write();
|
| 1192 |
|
|
|
| 1193 |
|
|
p.label(<span class="stringliteral">"MICROPC_Bcc_BRA"</span>);
|
| 1194 |
|
|
|
| 1195 |
|
|
p .OP1_FROM_PC();
|
| 1196 |
|
|
|
| 1197 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 1198 |
|
|
.BRANCH_ir().offset(<span class="stringliteral">"bcc_bra_no_word"</span>);
|
| 1199 |
|
|
|
| 1200 |
|
|
p .SIZE_WORD().EA_REG_3b100().EA_MOD_3b111().EA_TYPE_ALL()
|
| 1201 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid_32();
|
| 1202 |
|
|
|
| 1203 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 1204 |
|
|
.PC_INCR_BY_SIZE();
|
| 1205 |
|
|
|
| 1206 |
|
|
<span class="comment">// jump here if no need to load extra immediate word</span>
|
| 1207 |
|
|
p .label(<span class="stringliteral">"bcc_bra_no_word"</span>);
|
| 1208 |
|
|
|
| 1209 |
|
|
p .BRANCH_condition_0().offset(<span class="stringliteral">"bcc_bra_no_branch"</span>);
|
| 1210 |
|
|
|
| 1211 |
|
|
p .OP2_FROM_OP1();
|
| 1212 |
|
|
p .OP2_MOVE_OFFSET()
|
| 1213 |
|
|
.OP1_FROM_RESULT();
|
| 1214 |
|
|
|
| 1215 |
|
|
p .ALU_SIMPLE_LONG_ADD();
|
| 1216 |
|
|
|
| 1217 |
|
|
<span class="comment">// wait for instruction prefetch</span>
|
| 1218 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
|
| 1219 |
|
|
|
| 1220 |
|
|
p .PC_FROM_RESULT();
|
| 1221 |
|
|
|
| 1222 |
|
|
<span class="comment">// wait for PC check</span>
|
| 1223 |
|
|
p .ALU_SIMPLE_MOVE();
|
| 1224 |
|
|
|
| 1225 |
|
|
<span class="comment">// jump here if no branch</span>
|
| 1226 |
|
|
p .label(<span class="stringliteral">"bcc_bra_no_branch"</span>);
|
| 1227 |
|
|
|
| 1228 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1229 |
|
|
|
| 1230 |
|
|
p.label(<span class="stringliteral">"MICROPC_DBcc"</span>);
|
| 1231 |
|
|
|
| 1232 |
|
|
p .BRANCH_condition_1().offset(<span class="stringliteral">"dbcc_condition_true"</span>);
|
| 1233 |
|
|
|
| 1234 |
|
|
p .OP2_LOAD_1()
|
| 1235 |
|
|
.SIZE_WORD().EA_REG_IR_2_0().EA_MOD_DN().EA_TYPE_ALL();
|
| 1236 |
|
|
|
| 1237 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 1238 |
|
|
|
| 1239 |
|
|
p .ALU_SIMPLE_LONG_SUB();
|
| 1240 |
|
|
|
| 1241 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 1242 |
|
|
|
| 1243 |
|
|
p .OP1_FROM_PC()
|
| 1244 |
|
|
.SIZE_WORD().EA_REG_3b100().EA_MOD_3b111().EA_TYPE_ALL()
|
| 1245 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid_32();
|
| 1246 |
|
|
|
| 1247 |
|
|
p .BRANCH_result().offset(<span class="stringliteral">"dbcc_condition_true"</span>);
|
| 1248 |
|
|
|
| 1249 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 1250 |
|
|
.ALU_SIMPLE_MOVE();
|
| 1251 |
|
|
|
| 1252 |
|
|
p .OP2_FROM_OP1()
|
| 1253 |
|
|
.OP1_FROM_RESULT();
|
| 1254 |
|
|
|
| 1255 |
|
|
p .ALU_SIMPLE_LONG_ADD()
|
| 1256 |
|
|
<span class="comment">// wait for instruction prefetch</span>
|
| 1257 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
|
| 1258 |
|
|
|
| 1259 |
|
|
p .PC_FROM_RESULT();
|
| 1260 |
|
|
|
| 1261 |
|
|
<span class="comment">// wait for PC check</span>
|
| 1262 |
|
|
p .ALU_SIMPLE_MOVE();
|
| 1263 |
|
|
|
| 1264 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1265 |
|
|
|
| 1266 |
|
|
<span class="comment">// jump here if condition is true</span>
|
| 1267 |
|
|
p .label(<span class="stringliteral">"dbcc_condition_true"</span>);
|
| 1268 |
|
|
|
| 1269 |
|
|
p .PC_INCR_BY_2()
|
| 1270 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 1271 |
|
|
|
| 1272 |
|
|
p.label(<span class="stringliteral">"MICROPC_MOVE_FROM_SR"</span>);
|
| 1273 |
|
|
|
| 1274 |
|
|
p .OP1_FROM_SR()
|
| 1275 |
|
|
.SIZE_WORD().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATAALTER();
|
| 1276 |
|
|
|
| 1277 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 1278 |
|
|
.BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 1279 |
|
|
|
| 1280 |
|
|
p .BRANCH_procedure().PROCEDURE_call_write();
|
| 1281 |
|
|
|
| 1282 |
|
|
p.label(<span class="stringliteral">"MICROPC_MOVE_TO_CCR_MOVE_TO_SR"</span>);
|
| 1283 |
|
|
|
| 1284 |
|
|
p .SIZE_WORD().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_DATA();
|
| 1285 |
|
|
|
| 1286 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 1287 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 1288 |
|
|
|
| 1289 |
|
|
p .ALU_MOVE_TO_CCR_SR_RTE_RTR_STOP_LOGIC_TO_CCR_SR()
|
| 1290 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 1291 |
|
|
|
| 1292 |
|
|
p.label(<span class="stringliteral">"MICROPC_MOVE_USP_to_USP"</span>);
|
| 1293 |
|
|
|
| 1294 |
|
|
p .SIZE_LONG().EA_REG_IR_2_0().EA_MOD_AN().EA_TYPE_ALL();
|
| 1295 |
|
|
|
| 1296 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 1297 |
|
|
|
| 1298 |
|
|
p .ALU_SIMPLE_MOVE();
|
| 1299 |
|
|
|
| 1300 |
|
|
p .AN_ADDRESS_USP()
|
| 1301 |
|
|
.AN_WRITE_ENABLE_SET();
|
| 1302 |
|
|
|
| 1303 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1304 |
|
|
|
| 1305 |
|
|
|
| 1306 |
|
|
p.label(<span class="stringliteral">"MICROPC_MOVE_USP_to_An"</span>);
|
| 1307 |
|
|
|
| 1308 |
|
|
p .OP1_FROM_USP()
|
| 1309 |
|
|
.SIZE_LONG().EA_REG_IR_2_0().EA_MOD_AN().EA_TYPE_ALL();
|
| 1310 |
|
|
|
| 1311 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 1312 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 1313 |
|
|
|
| 1314 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1315 |
|
|
|
| 1316 |
|
|
p.label(<span class="stringliteral">"MICROPC_LINK"</span>);
|
| 1317 |
|
|
|
| 1318 |
|
|
<span class="comment">// load An to OP1</span>
|
| 1319 |
|
|
p .SIZE_LONG().EA_REG_IR_2_0().EA_MOD_AN().EA_TYPE_ALL();
|
| 1320 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 1321 |
|
|
|
| 1322 |
|
|
<span class="comment">// move OP1 to result</span>
|
| 1323 |
|
|
p .ALU_LINK_MOVE()
|
| 1324 |
|
|
.SIZE_LONG().EA_REG_3b111().EA_MOD_PREDEC().EA_TYPE_ALL();
|
| 1325 |
|
|
|
| 1326 |
|
|
<span class="comment">// write result to (SP)</span>
|
| 1327 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 1328 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 1329 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 1330 |
|
|
|
| 1331 |
|
|
<span class="comment">// load SP to OP1</span>
|
| 1332 |
|
|
p .SIZE_LONG().EA_REG_3b111().EA_MOD_AN().EA_TYPE_ALL();
|
| 1333 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 1334 |
|
|
|
| 1335 |
|
|
<span class="comment">// move OP1 to result</span>
|
| 1336 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 1337 |
|
|
.SIZE_LONG().EA_REG_IR_2_0().EA_MOD_AN().EA_TYPE_ALL();
|
| 1338 |
|
|
|
| 1339 |
|
|
<span class="comment">// save result to An</span>
|
| 1340 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 1341 |
|
|
|
| 1342 |
|
|
<span class="comment">// load offset word to OP1</span>
|
| 1343 |
|
|
p .SIZE_WORD().EA_REG_3b100().EA_MOD_3b111().EA_TYPE_ALL()
|
| 1344 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid_32();
|
| 1345 |
|
|
|
| 1346 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 1347 |
|
|
.PC_INCR_BY_SIZE();
|
| 1348 |
|
|
|
| 1349 |
|
|
<span class="comment">// move OP1 to OP2</span>
|
| 1350 |
|
|
p .OP2_FROM_OP1()
|
| 1351 |
|
|
.SIZE_LONG().EA_REG_3b111().EA_MOD_AN().EA_TYPE_ALL();
|
| 1352 |
|
|
|
| 1353 |
|
|
<span class="comment">// load SP to OP1</span>
|
| 1354 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 1355 |
|
|
|
| 1356 |
|
|
<span class="comment">// add offset and SP to SP</span>
|
| 1357 |
|
|
p .ALU_SIMPLE_LONG_ADD()
|
| 1358 |
|
|
.BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 1359 |
|
|
|
| 1360 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1361 |
|
|
|
| 1362 |
|
|
p.label(<span class="stringliteral">"MICROPC_ULNK"</span>);
|
| 1363 |
|
|
<span class="comment">// load An to OP1</span>
|
| 1364 |
|
|
p .SIZE_LONG().EA_REG_IR_2_0().EA_MOD_AN().EA_TYPE_ALL();
|
| 1365 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 1366 |
|
|
|
| 1367 |
|
|
<span class="comment">// move OP1 to result</span>
|
| 1368 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 1369 |
|
|
.SIZE_LONG().EA_REG_3b111().EA_MOD_AN().EA_TYPE_ALL();
|
| 1370 |
|
|
|
| 1371 |
|
|
<span class="comment">// save result to SP</span>
|
| 1372 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 1373 |
|
|
|
| 1374 |
|
|
<span class="comment">// load (SP) to OP1</span>
|
| 1375 |
|
|
p .SIZE_LONG().EA_REG_3b111().EA_MOD_POSTINC().EA_TYPE_ALL();
|
| 1376 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 1377 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_read();
|
| 1378 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 1379 |
|
|
|
| 1380 |
|
|
<span class="comment">// move OP1 to result</span>
|
| 1381 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 1382 |
|
|
.SIZE_LONG().EA_REG_IR_2_0().EA_MOD_AN().EA_TYPE_ALL();
|
| 1383 |
|
|
|
| 1384 |
|
|
<span class="comment">// save result to An</span>
|
| 1385 |
|
|
p .BRANCH_procedure().PROCEDURE_call_perform_ea_write();
|
| 1386 |
|
|
|
| 1387 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1388 |
|
|
|
| 1389 |
|
|
p.label(<span class="stringliteral">"MICROPC_BSR"</span>);
|
| 1390 |
|
|
|
| 1391 |
|
|
p .OP1_FROM_PC();
|
| 1392 |
|
|
|
| 1393 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 1394 |
|
|
.BRANCH_ir().offset(<span class="stringliteral">"bsr_no_word"</span>);
|
| 1395 |
|
|
p .SIZE_WORD().EA_REG_3b100().EA_MOD_3b111().EA_TYPE_ALL()
|
| 1396 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid_32();
|
| 1397 |
|
|
|
| 1398 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 1399 |
|
|
.PC_INCR_BY_SIZE();
|
| 1400 |
|
|
|
| 1401 |
|
|
<span class="comment">// jump here if no need to load extra immediate word</span>
|
| 1402 |
|
|
p .label(<span class="stringliteral">"bsr_no_word"</span>);
|
| 1403 |
|
|
|
| 1404 |
|
|
p .OP2_FROM_OP1();
|
| 1405 |
|
|
p .OP2_MOVE_OFFSET()
|
| 1406 |
|
|
.OP1_FROM_RESULT();
|
| 1407 |
|
|
|
| 1408 |
|
|
p .ALU_SIMPLE_LONG_ADD();
|
| 1409 |
|
|
|
| 1410 |
|
|
<span class="comment">// wait for instruction prefetch</span>
|
| 1411 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
|
| 1412 |
|
|
|
| 1413 |
|
|
p .OP1_FROM_PC()
|
| 1414 |
|
|
.PC_FROM_RESULT();
|
| 1415 |
|
|
|
| 1416 |
|
|
p .SIZE_LONG().EA_REG_3b111().EA_MOD_PREDEC().EA_TYPE_ALL();
|
| 1417 |
|
|
|
| 1418 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 1419 |
|
|
.BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 1420 |
|
|
|
| 1421 |
|
|
p .BRANCH_procedure().PROCEDURE_call_write();
|
| 1422 |
|
|
|
| 1423 |
|
|
p.label(<span class="stringliteral">"MICROPC_JMP"</span>);
|
| 1424 |
|
|
|
| 1425 |
|
|
p .SIZE_LONG().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_CONTROL();
|
| 1426 |
|
|
|
| 1427 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 1428 |
|
|
|
| 1429 |
|
|
p .OP1_FROM_ADDRESS();
|
| 1430 |
|
|
p .ALU_SIMPLE_MOVE();
|
| 1431 |
|
|
|
| 1432 |
|
|
<span class="comment">// wait for instruction prefetch</span>
|
| 1433 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
|
| 1434 |
|
|
|
| 1435 |
|
|
p .PC_FROM_RESULT();
|
| 1436 |
|
|
|
| 1437 |
|
|
<span class="comment">// wait for PC check</span>
|
| 1438 |
|
|
p .ALU_SIMPLE_MOVE();
|
| 1439 |
|
|
|
| 1440 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1441 |
|
|
|
| 1442 |
|
|
p.label(<span class="stringliteral">"MICROPC_JSR"</span>);
|
| 1443 |
|
|
|
| 1444 |
|
|
p .SIZE_LONG().EA_REG_IR_2_0().EA_MOD_IR_5_3().EA_TYPE_CONTROL();
|
| 1445 |
|
|
|
| 1446 |
|
|
p .BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 1447 |
|
|
|
| 1448 |
|
|
p .OP1_FROM_ADDRESS();
|
| 1449 |
|
|
p .ALU_SIMPLE_MOVE();
|
| 1450 |
|
|
|
| 1451 |
|
|
<span class="comment">// wait for instruction prefetch</span>
|
| 1452 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
|
| 1453 |
|
|
|
| 1454 |
|
|
p .OP1_FROM_PC()
|
| 1455 |
|
|
.PC_FROM_RESULT();
|
| 1456 |
|
|
|
| 1457 |
|
|
p .SIZE_LONG().EA_REG_3b111().EA_MOD_PREDEC().EA_TYPE_ALL();
|
| 1458 |
|
|
|
| 1459 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 1460 |
|
|
.BRANCH_procedure().PROCEDURE_call_load_ea();
|
| 1461 |
|
|
|
| 1462 |
|
|
p .BRANCH_procedure().PROCEDURE_call_write();
|
| 1463 |
|
|
|
| 1464 |
|
|
p.label(<span class="stringliteral">"MICROPC_RTE_RTR"</span>);
|
| 1465 |
|
|
|
| 1466 |
|
|
p .SIZE_WORD().EA_REG_3b111().EA_MOD_POSTINC().EA_TYPE_ALL();
|
| 1467 |
|
|
|
| 1468 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 1469 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 1470 |
|
|
|
| 1471 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 1472 |
|
|
.SIZE_LONG().EA_REG_3b111().EA_MOD_POSTINC().EA_TYPE_ALL();
|
| 1473 |
|
|
|
| 1474 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 1475 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 1476 |
|
|
|
| 1477 |
|
|
p .ALU_SIMPLE_MOVE()
|
| 1478 |
|
|
.OP1_FROM_RESULT();
|
| 1479 |
|
|
p .ALU_MOVE_TO_CCR_SR_RTE_RTR_STOP_LOGIC_TO_CCR_SR();
|
| 1480 |
|
|
|
| 1481 |
|
|
<span class="comment">// wait for instruction prefetch</span>
|
| 1482 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
|
| 1483 |
|
|
|
| 1484 |
|
|
p .PC_FROM_RESULT();
|
| 1485 |
|
|
|
| 1486 |
|
|
<span class="comment">// wait for PC check</span>
|
| 1487 |
|
|
p .ALU_SIMPLE_MOVE();
|
| 1488 |
|
|
|
| 1489 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1490 |
|
|
|
| 1491 |
|
|
p.label(<span class="stringliteral">"MICROPC_RTS"</span>);
|
| 1492 |
|
|
|
| 1493 |
|
|
p .SIZE_LONG().EA_REG_3b111().EA_MOD_POSTINC().EA_TYPE_ALL();
|
| 1494 |
|
|
|
| 1495 |
|
|
p .BRANCH_procedure().PROCEDURE_call_read();
|
| 1496 |
|
|
p .BRANCH_procedure().PROCEDURE_call_save_ea();
|
| 1497 |
|
|
|
| 1498 |
|
|
p .ALU_SIMPLE_MOVE();
|
| 1499 |
|
|
|
| 1500 |
|
|
<span class="comment">// wait for instruction prefetch</span>
|
| 1501 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_prefetch_valid();
|
| 1502 |
|
|
|
| 1503 |
|
|
p .PC_FROM_RESULT();
|
| 1504 |
|
|
|
| 1505 |
|
|
<span class="comment">// wait for PC check</span>
|
| 1506 |
|
|
p .ALU_SIMPLE_MOVE();
|
| 1507 |
|
|
|
| 1508 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1509 |
|
|
|
| 1510 |
|
|
p.label(<span class="stringliteral">"MICROPC_NOP"</span>);
|
| 1511 |
|
|
|
| 1512 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1513 |
|
|
|
| 1514 |
|
|
p.label(<span class="stringliteral">"MICROPC_TRAP"</span>);
|
| 1515 |
|
|
|
| 1516 |
|
|
p .TRAP_TRAP()
|
| 1517 |
|
|
.BRANCH_procedure().PROCEDURE_call_trap();
|
| 1518 |
|
|
|
| 1519 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1520 |
|
|
|
| 1521 |
|
|
p.label(<span class="stringliteral">"MICROPC_TRAPV"</span>);
|
| 1522 |
|
|
|
| 1523 |
|
|
p .BRANCH_V().offset(<span class="stringliteral">"trapv_no_trap"</span>);
|
| 1524 |
|
|
|
| 1525 |
|
|
p .TRAP_TRAPV()
|
| 1526 |
|
|
.BRANCH_procedure().PROCEDURE_call_trap();
|
| 1527 |
|
|
|
| 1528 |
|
|
<span class="comment">// jump here if overflow == 0</span>
|
| 1529 |
|
|
p .label(<span class="stringliteral">"trapv_no_trap"</span>);
|
| 1530 |
|
|
|
| 1531 |
|
|
p .BRANCH_procedure().PROCEDURE_return();
|
| 1532 |
|
|
|
| 1533 |
|
|
p.label(<span class="stringliteral">"MICROPC_RESET"</span>);
|
| 1534 |
|
|
|
| 1535 |
|
|
p .DO_RESET_FLAG_SET();
|
| 1536 |
|
|
p .BRANCH_procedure().PROCEDURE_wait_finished();
|
| 1537 |
|
|
|
| 1538 |
|
|
p .DO_RESET_FLAG_CLEAR()
|
| 1539 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 1540 |
|
|
|
| 1541 |
|
|
p.label(<span class="stringliteral">"MICROPC_STOP"</span>);
|
| 1542 |
|
|
|
| 1543 |
|
|
p .SIZE_WORD().EA_REG_3b100().EA_MOD_3b111().EA_TYPE_ALL()
|
| 1544 |
|
|
.BRANCH_procedure().PROCEDURE_wait_prefetch_valid_32();
|
| 1545 |
|
|
|
| 1546 |
|
|
p .OP1_FROM_IMMEDIATE()
|
| 1547 |
|
|
.PC_INCR_BY_SIZE();
|
| 1548 |
|
|
|
| 1549 |
|
|
p .ALU_MOVE_TO_CCR_SR_RTE_RTR_STOP_LOGIC_TO_CCR_SR()
|
| 1550 |
|
|
.STOP_FLAG_SET()
|
| 1551 |
|
|
.BRANCH_procedure().PROCEDURE_return();
|
| 1552 |
|
|
}
|
| 1553 |
|
|
}
|
| 1554 |
|
|
</pre></div> </div>
|
| 1555 |
17 |
alfik |
<hr class="footer"/><address class="footer"><small>Generated on Sun Jan 16 2011 11:00:03 for ao68000 by 
|
| 1556 |
12 |
alfik |
<a href="http://www.doxygen.org/index.html">
|
| 1557 |
|
|
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.2 </small></address>
|
| 1558 |
|
|
</body>
|
| 1559 |
|
|
</html>
|
