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robfinch |
// ============================================================================
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// __
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// \\__/ o\ (C) 2014 Robert Finch, Stratford
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// \ __ / All rights reserved.
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// \/_// robfinch<remove>@finitron.ca
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// ||
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//
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// A64 - Assembler
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// - 64 bit CPU
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//
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// This source file is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This source file is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// ============================================================================
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//
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#include "stdafx.h"
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static void emitAlignedCode(int cd);
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static void process_shifti(int oc);
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static void ProcessEOL(int opt);
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extern int first_rodata;
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extern int first_data;
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extern int first_bss;
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static int64_t ca;
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int use_gp = 0;
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// ---------------------------------------------------------------------------
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// ---------------------------------------------------------------------------
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static void emit_insn(int64_t oc)
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{
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emitAlignedCode(oc & 255);
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emitCode((oc >> 8) & 255);
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emitCode((oc >> 16) & 255);
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emitCode((oc >> 24) & 255);
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emitCode((oc >> 32) & 255);
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}
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// ---------------------------------------------------------------------------
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// ---------------------------------------------------------------------------
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static void emit_insn2(int64_t oc)
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{
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emitCode(oc & 255);
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emitCode((oc >> 8) & 255);
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emitCode((oc >> 16) & 255);
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emitCode((oc >> 24) & 255);
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emitCode((oc >> 32) & 255);
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}
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// ---------------------------------------------------------------------------
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// Emit code aligned to a code address.
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// ---------------------------------------------------------------------------
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static void emitAlignedCode(int cd)
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{
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int64_t ad;
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ad = code_address & 15;
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while (ad != 0 && ad != 5 && ad != 10) {
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emitByte(0x00);
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ad = code_address & 15;
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}
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ad = code_address & 0xfff;
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if ((ad > 0xFF0 && cd == 0xFD) || (ad > 0xFEA && cd == 0x61)) {
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emit_insn(0xEAEAEAEAEA);
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emit_insn(0xEAEAEAEAEA);
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if (cd==0x61)
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emit_insn(0xEAEAEAEAEA);
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ProcessEOL(0);
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ad = code_address & 0xfff;
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while (ad != 0 && ad != 5 && ad != 10) {
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emitByte(0x00);
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ad = code_address & 15;
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}
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}
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emitByte(cd);
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}
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// ---------------------------------------------------------------------------
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// Emit constant extension for memory operands.
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// ---------------------------------------------------------------------------
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static void emitImm0(int64_t v, int force)
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{
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if (v != 0 || force) {
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emitAlignedCode(0xfd);
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emitCode(v & 255);
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emitCode((v >> 8) & 255);
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emitCode((v >> 16) & 255);
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emitCode((v >> 24) & 255);
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}
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if (((v < 0) && ((v >> 32) != -1L)) || ((v > 0) && ((v >> 32) != 0L)) || (force && data_bits > 32)) {
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emitAlignedCode(0xfe);
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emitCode((v >> 32) & 255);
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emitCode((v >> 40) & 255);
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emitCode((v >> 48) & 255);
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emitCode((v >> 56) & 255);
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}
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}
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// ---------------------------------------------------------------------------
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// Emit constant extension for memory operands.
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// ---------------------------------------------------------------------------
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static void emitImm2(int64_t v, int force)
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{
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if (v < 0L || v > 3L || force) {
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emitAlignedCode(0xfd);
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emitCode((v >> 2) & 255);
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emitCode((v >> 10) & 255);
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emitCode((v >> 18) & 255);
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emitCode((v >> 26) & 255);
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}
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if (((v < 0) && ((v >> 34) != -1L)) || ((v > 0) && ((v >> 34) != 0L)) || (force && data_bits > 34)) {
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emitAlignedCode(0xfe);
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emitCode((v >> 34) & 255);
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emitCode((v >> 42) & 255);
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emitCode((v >> 50) & 255);
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emitCode((v >> 58) & 255);
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}
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}
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// ---------------------------------------------------------------------------
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// Emit constant extension for memory operands.
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// ---------------------------------------------------------------------------
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static void emitImm12(int64_t v, int force)
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{
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if (v < -2048L || v > 2047L || force) {
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emitAlignedCode(0xfd);
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emitCode((v >> 12) & 255);
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emitCode((v >> 20) & 255);
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emitCode((v >> 28) & 255);
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emitCode((v >> 36) & 255);
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}
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if (((v < 0) && ((v >> 44) != -1L)) || ((v > 0) && ((v >> 44) != 0L)) || (force && data_bits > 44)) {
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emitAlignedCode(0xfe);
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emitCode((v >> 44) & 255);
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emitCode((v >> 52) & 255);
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emitCode((v >> 60) & 255);
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emitCode(0x00);
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}
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}
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// ---------------------------------------------------------------------------
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// Emit constant extension for 16-bit operands.
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// ---------------------------------------------------------------------------
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static void emitImm16(int64_t v, int force)
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{
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if (v < -32768L || v > 32767L || force) {
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emitAlignedCode(0xfd);
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emitCode((v >> 16) & 255);
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emitCode((v >> 24) & 255);
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emitCode((v >> 32) & 255);
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emitCode((v >> 40) & 255);
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}
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if (((v < 0) && ((v >> 48) != -1L)) || ((v > 0) && ((v >> 48) != 0L)) || (force && (code_bits > 48 || data_bits > 48))) {
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emitAlignedCode(0xfe);
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emitCode((v >> 48) & 255);
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emitCode((v >> 56) & 255);
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emitCode(0x00);
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emitCode(0x00);
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}
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}
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// ---------------------------------------------------------------------------
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// Emit constant extension for 24-bit operands.
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// ---------------------------------------------------------------------------
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static void emitImm20(int64_t v, int force)
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{
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if (v < -524288L || v > 524287L || force) {
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emitAlignedCode(0xfd);
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emitCode((v >> 20) & 255);
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emitCode((v >> 28) & 255);
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emitCode((v >> 36) & 255);
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emitCode((v >> 44) & 255);
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}
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if (((v < 0) && ((v >> 52) != -1L)) || ((v > 0) && ((v >> 52) != 0L)) || (force && (code_bits > 52 || data_bits > 52))) {
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emitAlignedCode(0xfe);
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emitCode((v >> 52) & 255);
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emitCode((v >> 60) & 255);
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emitCode(0x00);
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emitCode(0x00);
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}
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}
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// ---------------------------------------------------------------------------
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// Emit constant extension for 24-bit operands.
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// ---------------------------------------------------------------------------
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static void emitImm24(int64_t v, int force)
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{
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if (v < -8388608L || v > 8388607L || force) {
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emitAlignedCode(0xfd);
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emitCode((v >> 24) & 255);
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emitCode((v >> 32) & 255);
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emitCode((v >> 40) & 255);
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emitCode((v >> 48) & 255);
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}
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if (((v < 0) && ((v >> 56) != -1L)) || ((v > 0) && ((v >> 56) != 0L)) || (force && (code_bits > 56 || data_bits > 56))) {
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emitAlignedCode(0xfe);
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emitCode((v >> 56) & 255);
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emitCode(0x00);
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emitCode(0x00);
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emitCode(0x00);
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}
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}
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// ---------------------------------------------------------------------------
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// Emit constant extension for 32-bit operands.
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// ---------------------------------------------------------------------------
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static void emitImm32(int64_t v, int force)
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{
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if (v < -2147483648LL || v > 2147483647LL || force) {
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emitAlignedCode(0xfd);
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emitCode((v >> 32) & 255);
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emitCode((v >> 40) & 255);
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emitCode((v >> 48) & 255);
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emitCode((v >> 56) & 255);
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}
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}
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// ---------------------------------------------------------------------------
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// jmp main
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// jsr [r19]
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// jmp (tbl,r2)
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// jsr [gp+r20]
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// ---------------------------------------------------------------------------
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| 248 |
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static void process_jmp(int oc)
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| 249 |
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{
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| 250 |
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int64_t addr;
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| 251 |
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int Ra, Rb;
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| 252 |
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int sg;
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| 253 |
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| 254 |
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sg = 1; // Assume data segment
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NextToken();
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// Memory indirect ?
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if (token=='(' || token=='[') {
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| 258 |
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Ra = getRegister();
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| 259 |
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if (Ra==-1) {
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| 260 |
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Ra = 0;
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| 261 |
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NextToken();
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| 262 |
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addr = expr();
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| 263 |
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prevToken();
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| 264 |
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if (token==',') {
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| 265 |
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Ra = getRegister();
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| 266 |
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if (Ra==-1) Ra = 0;
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| 267 |
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if (Ra==255 || Ra==253)
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| 268 |
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sg = 14;
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| 269 |
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else if (Ra==254)
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| 270 |
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sg = 15;
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| 271 |
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else if (Ra==252)
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| 272 |
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sg = 12;
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| 273 |
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}
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| 274 |
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if (segprefix >= 0)
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| 275 |
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sg = segprefix;
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| 276 |
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if (token!=')' && token != ']')
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| 277 |
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printf("Missing close bracket.\r\n");
|
| 278 |
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/*
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| 279 |
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if (lastsym != (SYM *)NULL)
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| 280 |
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emitImm20(addr,!lastsym->defined);
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| 281 |
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else
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| 282 |
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emitImm20(addr,0);
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| 283 |
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*/
|
| 284 |
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emitImm20(addr,lastsym!=(SYM*)NULL);
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| 285 |
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emitAlignedCode(oc+2);
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| 286 |
|
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if (bGen)
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| 287 |
|
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if (lastsym && !use_gp) {
|
| 288 |
|
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if( lastsym->segment < 5)
|
| 289 |
|
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sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | 8 | (lastsym->isExtern ? 128 : 0) | (code_bits << 8));
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| 290 |
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}
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| 291 |
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emitCode(Ra);
|
| 292 |
|
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emitCode(((addr << 4) & 0xF0)|sg);
|
| 293 |
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emitCode((addr >> 4) & 255);
|
| 294 |
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emitCode((addr >> 12) & 255);
|
| 295 |
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return;
|
| 296 |
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}
|
| 297 |
|
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// Simple [Rn] or [Rn+Rn]?
|
| 298 |
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else {
|
| 299 |
|
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if (token == '+') {
|
| 300 |
|
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//NextToken();
|
| 301 |
|
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Rb = getRegister();
|
| 302 |
|
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emitAlignedCode(0x65); // JSR [Ra+Rb]
|
| 303 |
|
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emitCode(Ra);
|
| 304 |
|
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emitCode(Rb);
|
| 305 |
|
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emitCode(0x00);
|
| 306 |
|
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emitCode(0x00);
|
| 307 |
|
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return;
|
| 308 |
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}
|
| 309 |
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else {
|
| 310 |
|
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if (token != ')' && token!=']')
|
| 311 |
|
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printf("Missing close bracket\r\n");
|
| 312 |
|
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emitAlignedCode(oc + 4);
|
| 313 |
|
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emitCode(Ra);
|
| 314 |
|
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emitCode(0x00);
|
| 315 |
|
|
emitCode(0x00);
|
| 316 |
|
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emitCode(0x00);
|
| 317 |
|
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return;
|
| 318 |
|
|
}
|
| 319 |
|
|
}
|
| 320 |
|
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}
|
| 321 |
|
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addr = expr();
|
| 322 |
|
|
prevToken();
|
| 323 |
|
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// d(Rn)?
|
| 324 |
|
|
if (token=='(' || token=='[') {
|
| 325 |
|
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NextToken();
|
| 326 |
|
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Ra = getRegister();
|
| 327 |
|
|
if (Ra==-1) {
|
| 328 |
|
|
printf("Illegal jump address mode.\r\n");
|
| 329 |
|
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Ra = 0;
|
| 330 |
|
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}
|
| 331 |
|
|
if (token=='+') {
|
| 332 |
|
|
emitImm0(addr,0);
|
| 333 |
|
|
Rb = getRegister();
|
| 334 |
|
|
emitAlignedCode(0x65); // JSR [Ra+Rb]
|
| 335 |
|
|
emitCode(Ra);
|
| 336 |
|
|
emitCode(Rb);
|
| 337 |
|
|
emitCode(0x00);
|
| 338 |
|
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emitCode(0x00);
|
| 339 |
|
|
return;
|
| 340 |
|
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}
|
| 341 |
|
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else {
|
| 342 |
|
|
emitImm24(addr,0);
|
| 343 |
|
|
emitAlignedCode(oc+4);
|
| 344 |
|
|
emitCode(Ra);
|
| 345 |
|
|
emitCode(addr & 255);
|
| 346 |
|
|
emitCode((addr >> 8) & 255);
|
| 347 |
|
|
emitCode((addr >> 16) & 255);
|
| 348 |
|
|
return;
|
| 349 |
|
|
}
|
| 350 |
|
|
}
|
| 351 |
|
|
|
| 352 |
|
|
emitImm32(addr, code_bits > 32);
|
| 353 |
|
|
emitAlignedCode(oc);
|
| 354 |
|
|
if (bGen)
|
| 355 |
|
|
if (lastsym && !use_gp) {
|
| 356 |
|
|
if( lastsym->segment < 5)
|
| 357 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | 1 | (lastsym->isExtern ? 128 : 0) | (code_bits << 8));
|
| 358 |
|
|
}
|
| 359 |
|
|
emitCode(addr & 255);
|
| 360 |
|
|
emitCode((addr >> 8) & 255);
|
| 361 |
|
|
emitCode((addr >> 16) & 255);
|
| 362 |
|
|
emitCode((addr >> 24) & 255);
|
| 363 |
|
|
}
|
| 364 |
|
|
|
| 365 |
|
|
// ---------------------------------------------------------------------------
|
| 366 |
|
|
// subui r1,r2,#1234
|
| 367 |
|
|
// ---------------------------------------------------------------------------
|
| 368 |
|
|
|
| 369 |
|
|
static void process_riop(int oc)
|
| 370 |
|
|
{
|
| 371 |
|
|
int Ra;
|
| 372 |
|
|
int Rt;
|
| 373 |
|
|
char *p;
|
| 374 |
|
|
int64_t val;
|
| 375 |
|
|
|
| 376 |
|
|
p = inptr;
|
| 377 |
|
|
Rt = getRegister();
|
| 378 |
|
|
need(',');
|
| 379 |
|
|
Ra = getRegister();
|
| 380 |
|
|
need(',');
|
| 381 |
|
|
NextToken();
|
| 382 |
|
|
val = expr();
|
| 383 |
|
|
/*
|
| 384 |
|
|
if (lastsym != (SYM *)NULL)
|
| 385 |
|
|
emitImm16(val,!lastsym->defined);
|
| 386 |
|
|
else
|
| 387 |
|
|
emitImm16(val,0);
|
| 388 |
|
|
*/
|
| 389 |
|
|
emitImm16(val,lastsym!=(SYM*)NULL);
|
| 390 |
|
|
emitAlignedCode(oc);
|
| 391 |
|
|
if (bGen)
|
| 392 |
|
|
if (lastsym && !use_gp) {
|
| 393 |
|
|
if( lastsym->segment < 5)
|
| 394 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | 3 | (lastsym->isExtern ? 128 : 0) |
|
| 395 |
|
|
(lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
|
| 396 |
|
|
}
|
| 397 |
|
|
emitCode(Ra);
|
| 398 |
|
|
emitCode(Rt);
|
| 399 |
|
|
emitCode(val & 255);
|
| 400 |
|
|
emitCode((val >> 8) & 255);
|
| 401 |
|
|
}
|
| 402 |
|
|
|
| 403 |
|
|
// ---------------------------------------------------------------------------
|
| 404 |
|
|
// addu r1,r2,r12
|
| 405 |
|
|
// ---------------------------------------------------------------------------
|
| 406 |
|
|
|
| 407 |
|
|
static void process_rrop(int oc)
|
| 408 |
|
|
{
|
| 409 |
|
|
int Ra;
|
| 410 |
|
|
int Rb;
|
| 411 |
|
|
int Rt;
|
| 412 |
|
|
char *p;
|
| 413 |
|
|
|
| 414 |
|
|
p = inptr;
|
| 415 |
|
|
Rt = getRegister();
|
| 416 |
|
|
need(',');
|
| 417 |
|
|
Ra = getRegister();
|
| 418 |
|
|
need(',');
|
| 419 |
|
|
NextToken();
|
| 420 |
|
|
if (token=='#') {
|
| 421 |
|
|
inptr = p;
|
| 422 |
|
|
switch(oc) {
|
| 423 |
|
|
case 0x04: process_riop(0x04); return; // add
|
| 424 |
|
|
case 0x14: process_riop(0x14); return; // addu
|
| 425 |
|
|
case 0x05: process_riop(0x05); return; // sub
|
| 426 |
|
|
case 0x15: process_riop(0x15); return; // subu
|
| 427 |
|
|
case 0x06: process_riop(0x06); return; // cmp
|
| 428 |
|
|
case 0x07: process_riop(0x07); return; // mul
|
| 429 |
|
|
case 0x08: process_riop(0x08); return; // div
|
| 430 |
|
|
case 0x09: process_riop(0x09); return; // mod
|
| 431 |
|
|
case 0x17: process_riop(0x17); return; // mulu
|
| 432 |
|
|
case 0x18: process_riop(0x18); return; // divu
|
| 433 |
|
|
case 0x19: process_riop(0x19); return; // modu
|
| 434 |
|
|
case 0x20: process_riop(0x0C); return; // and
|
| 435 |
|
|
case 0x21: process_riop(0x0D); return; // or
|
| 436 |
|
|
case 0x22: process_riop(0x0E); return; // eor
|
| 437 |
|
|
// Sxx
|
| 438 |
|
|
case 0x60: process_riop(0x30); return;
|
| 439 |
|
|
case 0x61: process_riop(0x31); return;
|
| 440 |
|
|
case 0x68: process_riop(0x38); return;
|
| 441 |
|
|
case 0x69: process_riop(0x39); return;
|
| 442 |
|
|
case 0x6A: process_riop(0x3A); return;
|
| 443 |
|
|
case 0x6B: process_riop(0x3B); return;
|
| 444 |
|
|
case 0x6C: process_riop(0x3C); return;
|
| 445 |
|
|
case 0x6D: process_riop(0x3D); return;
|
| 446 |
|
|
case 0x6E: process_riop(0x3E); return;
|
| 447 |
|
|
case 0x6F: process_riop(0x3F); return;
|
| 448 |
|
|
// Shift
|
| 449 |
|
|
case 0x40: process_shifti(0x50); return;
|
| 450 |
|
|
case 0x41: process_shifti(0x51); return;
|
| 451 |
|
|
case 0x42: process_shifti(0x52); return;
|
| 452 |
|
|
case 0x43: process_shifti(0x53); return;
|
| 453 |
|
|
case 0x44: process_shifti(0x54); return;
|
| 454 |
|
|
}
|
| 455 |
|
|
return;
|
| 456 |
|
|
}
|
| 457 |
|
|
prevToken();
|
| 458 |
|
|
Rb = getRegister();
|
| 459 |
|
|
prevToken();
|
| 460 |
|
|
emitAlignedCode(2);
|
| 461 |
|
|
emitCode(Ra);
|
| 462 |
|
|
emitCode(Rb);
|
| 463 |
|
|
emitCode(Rt);
|
| 464 |
|
|
emitCode(oc);
|
| 465 |
|
|
}
|
| 466 |
|
|
|
| 467 |
|
|
// ---------------------------------------------------------------------------
|
| 468 |
|
|
// fabs.d fp1,fp2[,rm]
|
| 469 |
|
|
// ---------------------------------------------------------------------------
|
| 470 |
|
|
|
| 471 |
|
|
static void process_fprop(int oc)
|
| 472 |
|
|
{
|
| 473 |
|
|
int Ra;
|
| 474 |
|
|
int Rt;
|
| 475 |
|
|
char *p;
|
| 476 |
|
|
int sz;
|
| 477 |
|
|
int fmt;
|
| 478 |
|
|
int rm;
|
| 479 |
|
|
|
| 480 |
|
|
rm = 0;
|
| 481 |
|
|
sz = 'd';
|
| 482 |
|
|
if (*inptr=='.') {
|
| 483 |
|
|
inptr++;
|
| 484 |
|
|
if (strchr("sdtqSDTQ",*inptr)) {
|
| 485 |
|
|
sz = tolower(*inptr);
|
| 486 |
|
|
inptr++;
|
| 487 |
|
|
}
|
| 488 |
|
|
else
|
| 489 |
|
|
printf("Illegal float size.\r\n");
|
| 490 |
|
|
}
|
| 491 |
|
|
p = inptr;
|
| 492 |
|
|
if (oc==0xF6) // fcmp
|
| 493 |
|
|
Rt = getRegister();
|
| 494 |
|
|
else
|
| 495 |
|
|
Rt = getFPRegister();
|
| 496 |
|
|
need(',');
|
| 497 |
|
|
Ra = getFPRegister();
|
| 498 |
|
|
if (token==',')
|
| 499 |
|
|
rm = getFPRoundMode();
|
| 500 |
|
|
prevToken();
|
| 501 |
|
|
emitAlignedCode(0x01);
|
| 502 |
|
|
emitCode(Ra);
|
| 503 |
|
|
emitCode(Rt);
|
| 504 |
|
|
switch(sz) {
|
| 505 |
|
|
case 's': fmt = 0; break;
|
| 506 |
|
|
case 'd': fmt = 1; break;
|
| 507 |
|
|
case 't': fmt = 2; break;
|
| 508 |
|
|
case 'q': fmt = 3; break;
|
| 509 |
|
|
}
|
| 510 |
|
|
emitCode((fmt << 3)|rm);
|
| 511 |
|
|
emitCode(oc);
|
| 512 |
|
|
}
|
| 513 |
|
|
|
| 514 |
|
|
// ---------------------------------------------------------------------------
|
| 515 |
|
|
// fadd.d fp1,fp2,fp12[,rm]
|
| 516 |
|
|
// fcmp.d r1,fp3,fp10[,rm]
|
| 517 |
|
|
// ---------------------------------------------------------------------------
|
| 518 |
|
|
|
| 519 |
|
|
static void process_fprrop(int oc)
|
| 520 |
|
|
{
|
| 521 |
|
|
int Ra;
|
| 522 |
|
|
int Rb;
|
| 523 |
|
|
int Rt;
|
| 524 |
|
|
char *p;
|
| 525 |
|
|
int sz;
|
| 526 |
|
|
int fmt;
|
| 527 |
|
|
int rm;
|
| 528 |
|
|
|
| 529 |
|
|
rm = 0;
|
| 530 |
|
|
sz = 'd';
|
| 531 |
|
|
if (*inptr=='.') {
|
| 532 |
|
|
inptr++;
|
| 533 |
|
|
if (strchr("sdtqSDTQ",*inptr)) {
|
| 534 |
|
|
sz = tolower(*inptr);
|
| 535 |
|
|
inptr++;
|
| 536 |
|
|
}
|
| 537 |
|
|
else
|
| 538 |
|
|
printf("Illegal float size.\r\n");
|
| 539 |
|
|
}
|
| 540 |
|
|
p = inptr;
|
| 541 |
|
|
if (oc==0xF6) // fcmp
|
| 542 |
|
|
Rt = getRegister();
|
| 543 |
|
|
else
|
| 544 |
|
|
Rt = getFPRegister();
|
| 545 |
|
|
need(',');
|
| 546 |
|
|
Ra = getFPRegister();
|
| 547 |
|
|
need(',');
|
| 548 |
|
|
Rb = getFPRegister();
|
| 549 |
|
|
if (token==',')
|
| 550 |
|
|
rm = getFPRoundMode();
|
| 551 |
|
|
prevToken();
|
| 552 |
|
|
emitAlignedCode(oc);
|
| 553 |
|
|
emitCode(Ra);
|
| 554 |
|
|
emitCode(Rb);
|
| 555 |
|
|
emitCode(Rt);
|
| 556 |
|
|
switch(sz) {
|
| 557 |
|
|
case 's': fmt = 0; break;
|
| 558 |
|
|
case 'd': fmt = 1; break;
|
| 559 |
|
|
case 't': fmt = 2; break;
|
| 560 |
|
|
case 'q': fmt = 3; break;
|
| 561 |
|
|
}
|
| 562 |
|
|
emitCode((fmt << 3)|rm);
|
| 563 |
|
|
}
|
| 564 |
|
|
|
| 565 |
|
|
// ---------------------------------------------------------------------------
|
| 566 |
|
|
// fcx r0,#2
|
| 567 |
|
|
// fdx r1,#0
|
| 568 |
|
|
// ---------------------------------------------------------------------------
|
| 569 |
|
|
|
| 570 |
|
|
static void process_fpstat(int oc)
|
| 571 |
|
|
{
|
| 572 |
|
|
int Ra;
|
| 573 |
|
|
int64_t bits;
|
| 574 |
|
|
char *p;
|
| 575 |
|
|
|
| 576 |
|
|
p = inptr;
|
| 577 |
|
|
bits = 0;
|
| 578 |
|
|
Ra = getRegister();
|
| 579 |
|
|
if (token==',') {
|
| 580 |
|
|
NextToken();
|
| 581 |
|
|
bits = expr();
|
| 582 |
|
|
}
|
| 583 |
|
|
prevToken();
|
| 584 |
|
|
emitAlignedCode(0x01);
|
| 585 |
|
|
emitCode(Ra);
|
| 586 |
|
|
emitCode(bits & 0xff);
|
| 587 |
|
|
emitCode(0x00);
|
| 588 |
|
|
emitCode(oc);
|
| 589 |
|
|
}
|
| 590 |
|
|
|
| 591 |
|
|
// ---------------------------------------------------------------------------
|
| 592 |
|
|
// not r3,r3
|
| 593 |
|
|
// ---------------------------------------------------------------------------
|
| 594 |
|
|
|
| 595 |
|
|
static void process_rop(int oc)
|
| 596 |
|
|
{
|
| 597 |
|
|
int Ra;
|
| 598 |
|
|
int Rt;
|
| 599 |
|
|
|
| 600 |
|
|
Rt = getRegister();
|
| 601 |
|
|
need(',');
|
| 602 |
|
|
Ra = getRegister();
|
| 603 |
|
|
prevToken();
|
| 604 |
|
|
emitAlignedCode(1);
|
| 605 |
|
|
emitCode(Ra);
|
| 606 |
|
|
emitCode(Rt);
|
| 607 |
|
|
emitCode(0x00);
|
| 608 |
|
|
emitCode(oc);
|
| 609 |
|
|
}
|
| 610 |
|
|
|
| 611 |
|
|
// ---------------------------------------------------------------------------
|
| 612 |
|
|
// brnz r1,label
|
| 613 |
|
|
// ---------------------------------------------------------------------------
|
| 614 |
|
|
|
| 615 |
|
|
static void process_bcc(int oc)
|
| 616 |
|
|
{
|
| 617 |
|
|
int Ra;
|
| 618 |
|
|
int64_t val;
|
| 619 |
|
|
int64_t disp;
|
| 620 |
|
|
int64_t ad;
|
| 621 |
|
|
|
| 622 |
|
|
Ra = getRegister();
|
| 623 |
|
|
need(',');
|
| 624 |
|
|
NextToken();
|
| 625 |
|
|
val = expr();
|
| 626 |
|
|
ad = code_address + 5;
|
| 627 |
|
|
if ((ad & 15)==15)
|
| 628 |
|
|
ad++;
|
| 629 |
|
|
disp = ((val & 0xFFFFFFFFFFFFF000L) - (ad & 0xFFFFFFFFFFFFF000L)) >> 12;
|
| 630 |
|
|
emitAlignedCode(oc);
|
| 631 |
|
|
emitCode(Ra);
|
| 632 |
|
|
emitCode(val & 255);
|
| 633 |
|
|
emitCode(((disp & 15) << 4)|((val >> 8) & 15));
|
| 634 |
|
|
emitCode((disp >> 4) & 31);
|
| 635 |
|
|
}
|
| 636 |
|
|
|
| 637 |
|
|
// ---------------------------------------------------------------------------
|
| 638 |
|
|
// bra label
|
| 639 |
|
|
// ---------------------------------------------------------------------------
|
| 640 |
|
|
|
| 641 |
|
|
static void process_bra(int oc)
|
| 642 |
|
|
{
|
| 643 |
|
|
int64_t val;
|
| 644 |
|
|
int64_t disp;
|
| 645 |
|
|
int64_t ad;
|
| 646 |
|
|
|
| 647 |
|
|
NextToken();
|
| 648 |
|
|
val = expr();
|
| 649 |
|
|
ad = code_address + 5;
|
| 650 |
|
|
if ((ad & 15)==15)
|
| 651 |
|
|
ad++;
|
| 652 |
|
|
disp = ((val & 0xFFFFFFFFFFFFF000L) - (ad & 0xFFFFFFFFFFFFF000L)) >> 12;
|
| 653 |
|
|
emitAlignedCode(oc);
|
| 654 |
|
|
emitCode(0x00);
|
| 655 |
|
|
emitCode(val & 255);
|
| 656 |
|
|
emitCode(((disp & 15) << 4)|((val >> 8) & 15));
|
| 657 |
|
|
if (oc==0x56) // BSR
|
| 658 |
|
|
emitCode((disp >> 4) & 255);
|
| 659 |
|
|
else
|
| 660 |
|
|
emitCode((disp >> 4) & 31);
|
| 661 |
|
|
}
|
| 662 |
|
|
|
| 663 |
|
|
// ---------------------------------------------------------------------------
|
| 664 |
|
|
// expr
|
| 665 |
|
|
// expr[Reg]
|
| 666 |
|
|
// expr[Reg+Reg*sc]
|
| 667 |
|
|
// [Reg]
|
| 668 |
|
|
// [Reg+Reg*sc]
|
| 669 |
|
|
// ---------------------------------------------------------------------------
|
| 670 |
|
|
|
| 671 |
|
|
static void mem_operand(int64_t *disp, int *regA, int *regB, int *sc, int *sg)
|
| 672 |
|
|
{
|
| 673 |
|
|
int64_t val;
|
| 674 |
|
|
|
| 675 |
|
|
// chech params
|
| 676 |
|
|
if (disp == (int64_t *)NULL)
|
| 677 |
|
|
return;
|
| 678 |
|
|
if (regA == (int *)NULL)
|
| 679 |
|
|
return;
|
| 680 |
|
|
if (regB == (int *)NULL)
|
| 681 |
|
|
return;
|
| 682 |
|
|
if (sc==(int *)NULL)
|
| 683 |
|
|
return;
|
| 684 |
|
|
if (sg==(int *)NULL)
|
| 685 |
|
|
return;
|
| 686 |
|
|
|
| 687 |
|
|
*disp = 0;
|
| 688 |
|
|
*regA = -1;
|
| 689 |
|
|
*regB = -1;
|
| 690 |
|
|
*sc = 0;
|
| 691 |
|
|
*sg = 1;
|
| 692 |
|
|
if (token!='[') {;
|
| 693 |
|
|
val = expr();
|
| 694 |
|
|
*disp = val;
|
| 695 |
|
|
}
|
| 696 |
|
|
if (token=='[') {
|
| 697 |
|
|
*regA = getRegister();
|
| 698 |
|
|
if (*regA == -1) {
|
| 699 |
|
|
printf("expecting a register\r\n");
|
| 700 |
|
|
}
|
| 701 |
|
|
if (*regA==255 || *regA==253)
|
| 702 |
|
|
*sg = 14;
|
| 703 |
|
|
else if (*regA==254)
|
| 704 |
|
|
*sg = 15;
|
| 705 |
|
|
else if (*regA==252)
|
| 706 |
|
|
*sg = 12;
|
| 707 |
|
|
// NextToken();
|
| 708 |
|
|
if (token=='+') {
|
| 709 |
|
|
*sc = 0;
|
| 710 |
|
|
*regB = getRegister();
|
| 711 |
|
|
if (*regB == -1) {
|
| 712 |
|
|
printf("expecting a register\r\n");
|
| 713 |
|
|
}
|
| 714 |
|
|
if (token=='*' && !fSeg)
|
| 715 |
|
|
printf("Index scaling not supported.\r\n");
|
| 716 |
|
|
if (token=='*') {
|
| 717 |
|
|
NextToken();
|
| 718 |
|
|
val = expr();
|
| 719 |
|
|
prevToken();
|
| 720 |
|
|
// if (token!=tk_icon) {
|
| 721 |
|
|
// printf("expecting a scaling factor.\r\n");
|
| 722 |
|
|
// printf("token %d %c\r\n", token, token);
|
| 723 |
|
|
// }
|
| 724 |
|
|
switch(val) {
|
| 725 |
|
|
case 0: *sc = 0; break;
|
| 726 |
|
|
case 1: *sc = 0; break;
|
| 727 |
|
|
case 2: *sc = 1; break;
|
| 728 |
|
|
case 4: *sc = 2; break;
|
| 729 |
|
|
case 8: *sc = 3; break;
|
| 730 |
|
|
default: printf("Illegal scaling factor.\r\n");
|
| 731 |
|
|
}
|
| 732 |
|
|
}
|
| 733 |
|
|
}
|
| 734 |
|
|
need(']');
|
| 735 |
|
|
}
|
| 736 |
|
|
}
|
| 737 |
|
|
|
| 738 |
|
|
// ---------------------------------------------------------------------------
|
| 739 |
|
|
// sw disp[r1],r2
|
| 740 |
|
|
// sw [r1+r2],r3
|
| 741 |
|
|
// ----------------------------------------------------------------------------
|
| 742 |
|
|
|
| 743 |
|
|
static void process_store(int oc)
|
| 744 |
|
|
{
|
| 745 |
|
|
int Ra;
|
| 746 |
|
|
int Rb;
|
| 747 |
|
|
int Rs;
|
| 748 |
|
|
int sc;
|
| 749 |
|
|
int sg;
|
| 750 |
|
|
int fixup;
|
| 751 |
|
|
int64_t disp;
|
| 752 |
|
|
|
| 753 |
|
|
Rs = getRegister();
|
| 754 |
|
|
expect(',');
|
| 755 |
|
|
mem_operand(&disp, &Ra, &Rb, &sc, &sg);
|
| 756 |
|
|
if (segprefix >= 0)
|
| 757 |
|
|
sg = segprefix;
|
| 758 |
|
|
if (Rs < 0) {
|
| 759 |
|
|
printf("Expecting a source register.\r\n");
|
| 760 |
|
|
ScanToEOL();
|
| 761 |
|
|
return;
|
| 762 |
|
|
}
|
| 763 |
|
|
if (Rb > 0) {
|
| 764 |
|
|
fixup = 11;
|
| 765 |
|
|
emitImm0(disp,lastsym!=(SYM*)NULL);
|
| 766 |
|
|
emitAlignedCode(oc + 8);
|
| 767 |
|
|
if (bGen)
|
| 768 |
|
|
if (lastsym && Ra != 249 && !use_gp) {
|
| 769 |
|
|
if( lastsym->segment < 5)
|
| 770 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
|
| 771 |
|
|
(lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
|
| 772 |
|
|
}
|
| 773 |
|
|
emitCode(Ra);
|
| 774 |
|
|
emitCode(Rb);
|
| 775 |
|
|
emitCode(Rs);
|
| 776 |
|
|
emitCode(sc | ((sg & 15) << 2));
|
| 777 |
|
|
return;
|
| 778 |
|
|
}
|
| 779 |
|
|
fixup = 10;
|
| 780 |
|
|
if (disp < 0xFFFFFFFFFFFFF800LL || disp > 0x7FFLL) /*{
|
| 781 |
|
|
if (lastsym != (SYM *)NULL)
|
| 782 |
|
|
emitImm12(disp,!lastsym->defined);
|
| 783 |
|
|
else
|
| 784 |
|
|
emitImm12(disp,0);
|
| 785 |
|
|
} */
|
| 786 |
|
|
emitImm12(disp,lastsym!=(SYM*)NULL);
|
| 787 |
|
|
emitAlignedCode(oc);
|
| 788 |
|
|
if (bGen && lastsym && Ra != 249 && !use_gp)
|
| 789 |
|
|
if( lastsym->segment < 5)
|
| 790 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
|
| 791 |
|
|
(lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
|
| 792 |
|
|
if (Ra < 0) Ra = 0;
|
| 793 |
|
|
emitCode(Ra);
|
| 794 |
|
|
emitCode(Rs);
|
| 795 |
|
|
emitCode(((disp << 4) & 0xF0) | (sg & 15));
|
| 796 |
|
|
emitCode((disp >> 4) & 255);
|
| 797 |
|
|
ScanToEOL();
|
| 798 |
|
|
}
|
| 799 |
|
|
|
| 800 |
|
|
// ----------------------------------------------------------------------------
|
| 801 |
|
|
// ----------------------------------------------------------------------------
|
| 802 |
|
|
|
| 803 |
|
|
static void process_ldi(int oc)
|
| 804 |
|
|
{
|
| 805 |
|
|
int Rt;
|
| 806 |
|
|
int64_t val;
|
| 807 |
|
|
|
| 808 |
|
|
Rt = getRegister();
|
| 809 |
|
|
expect(',');
|
| 810 |
|
|
val = expr();
|
| 811 |
|
|
/*
|
| 812 |
|
|
if (lastsym != (SYM *)NULL)
|
| 813 |
|
|
emitImm24(val,!lastsym->defined);
|
| 814 |
|
|
else
|
| 815 |
|
|
emitImm24(val,0);
|
| 816 |
|
|
*/
|
| 817 |
|
|
emitImm24(val,lastsym!=(SYM*)NULL);
|
| 818 |
|
|
emitAlignedCode(oc);
|
| 819 |
|
|
if (bGen && lastsym && !use_gp)
|
| 820 |
|
|
if( lastsym->segment < 5)
|
| 821 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | 2 | (lastsym->isExtern ? 128 : 0)|
|
| 822 |
|
|
(lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
|
| 823 |
|
|
emitCode(Rt);
|
| 824 |
|
|
emitCode(val & 255);
|
| 825 |
|
|
emitCode((val >> 8) & 255);
|
| 826 |
|
|
emitCode((val >> 16) & 255);
|
| 827 |
|
|
}
|
| 828 |
|
|
|
| 829 |
|
|
// ----------------------------------------------------------------------------
|
| 830 |
|
|
// ----------------------------------------------------------------------------
|
| 831 |
|
|
|
| 832 |
|
|
static void process_jsp(int oc)
|
| 833 |
|
|
{
|
| 834 |
|
|
int Ra;
|
| 835 |
|
|
int64_t val;
|
| 836 |
|
|
|
| 837 |
|
|
Ra = getRegister();
|
| 838 |
|
|
expect(',');
|
| 839 |
|
|
val = expr();
|
| 840 |
|
|
emitAlignedCode(oc);
|
| 841 |
|
|
if (bGen && lastsym && !use_gp)
|
| 842 |
|
|
if( lastsym->segment < 5)
|
| 843 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | 2 | (lastsym->isExtern ? 128 : 0)|
|
| 844 |
|
|
(lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
|
| 845 |
|
|
emitCode(Ra);
|
| 846 |
|
|
emitCode(val & 255);
|
| 847 |
|
|
emitCode((val >> 8) & 255);
|
| 848 |
|
|
emitCode((val >> 16) & 255);
|
| 849 |
|
|
}
|
| 850 |
|
|
|
| 851 |
|
|
// ----------------------------------------------------------------------------
|
| 852 |
|
|
// lw r1,disp[r2]
|
| 853 |
|
|
// lw r1,[r2+r3]
|
| 854 |
|
|
// ----------------------------------------------------------------------------
|
| 855 |
|
|
|
| 856 |
|
|
static void process_load(int oc)
|
| 857 |
|
|
{
|
| 858 |
|
|
int Ra;
|
| 859 |
|
|
int Rb;
|
| 860 |
|
|
int Rt;
|
| 861 |
|
|
int sc;
|
| 862 |
|
|
int sg;
|
| 863 |
|
|
char *p;
|
| 864 |
|
|
int64_t disp;
|
| 865 |
|
|
int fixup = 5;
|
| 866 |
|
|
|
| 867 |
|
|
p = inptr;
|
| 868 |
|
|
Rt = getRegister();
|
| 869 |
|
|
if (Rt < 0) {
|
| 870 |
|
|
printf("Expecting a target register.\r\n");
|
| 871 |
|
|
// printf("Line:%.60s\r\n",p);
|
| 872 |
|
|
ScanToEOL();
|
| 873 |
|
|
inptr-=2;
|
| 874 |
|
|
return;
|
| 875 |
|
|
}
|
| 876 |
|
|
expect(',');
|
| 877 |
|
|
mem_operand(&disp, &Ra, &Rb, &sc, &sg);
|
| 878 |
|
|
if (segprefix >= 0)
|
| 879 |
|
|
sg = segprefix;
|
| 880 |
|
|
if (Rb >= 0) {
|
| 881 |
|
|
emitImm0(disp,lastsym!=(SYM*)NULL);
|
| 882 |
|
|
fixup = 11;
|
| 883 |
|
|
if (oc==0x87) { //LWS
|
| 884 |
|
|
printf("Address mode not supported.\r\n");
|
| 885 |
|
|
return;
|
| 886 |
|
|
}
|
| 887 |
|
|
if (oc==0x9F) oc = 0x8F; // LEA
|
| 888 |
|
|
else oc = oc + 8;
|
| 889 |
|
|
emitAlignedCode(oc);
|
| 890 |
|
|
if (bGen && lastsym && Ra != 249 && !use_gp)
|
| 891 |
|
|
if( lastsym->segment < 5)
|
| 892 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
|
| 893 |
|
|
(lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
|
| 894 |
|
|
emitCode(Ra);
|
| 895 |
|
|
emitCode(Rb);
|
| 896 |
|
|
emitCode(Rt);
|
| 897 |
|
|
emitCode(sc | ((sg & 15) << 2));
|
| 898 |
|
|
return;
|
| 899 |
|
|
}
|
| 900 |
|
|
fixup = 10; // 12 bit
|
| 901 |
|
|
if (disp < 0xFFFFFFFFFFFFF700LL || disp > 0x7FFLL) /*{
|
| 902 |
|
|
if (lastsym != (SYM *)NULL)
|
| 903 |
|
|
emitImm12(disp,!lastsym->defined);
|
| 904 |
|
|
else
|
| 905 |
|
|
emitImm12(disp,0);
|
| 906 |
|
|
} */
|
| 907 |
|
|
emitImm12(disp,lastsym!=(SYM*)NULL);
|
| 908 |
|
|
emitAlignedCode(oc);
|
| 909 |
|
|
if (bGen && lastsym && Ra != 249 && !use_gp)
|
| 910 |
|
|
if( lastsym->segment < 5)
|
| 911 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
|
| 912 |
|
|
(lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
|
| 913 |
|
|
if (Ra < 0) Ra = 0;
|
| 914 |
|
|
emitCode(Ra);
|
| 915 |
|
|
emitCode(Rt);
|
| 916 |
|
|
emitCode(((disp << 4) & 0xF0) | (sg & 15));
|
| 917 |
|
|
emitCode((disp >> 4) & 255);
|
| 918 |
|
|
ScanToEOL();
|
| 919 |
|
|
}
|
| 920 |
|
|
|
| 921 |
|
|
// ----------------------------------------------------------------------------
|
| 922 |
|
|
// ----------------------------------------------------------------------------
|
| 923 |
|
|
|
| 924 |
|
|
static void process_inc(int oc)
|
| 925 |
|
|
{
|
| 926 |
|
|
int Ra;
|
| 927 |
|
|
int Rb;
|
| 928 |
|
|
int sc;
|
| 929 |
|
|
int sg;
|
| 930 |
|
|
int64_t incamt;
|
| 931 |
|
|
int64_t disp;
|
| 932 |
|
|
char *p;
|
| 933 |
|
|
int fixup = 5;
|
| 934 |
|
|
|
| 935 |
|
|
NextToken();
|
| 936 |
|
|
p = inptr;
|
| 937 |
|
|
mem_operand(&disp, &Ra, &Rb, &sc, &sg);
|
| 938 |
|
|
incamt = 1;
|
| 939 |
|
|
if (token==']')
|
| 940 |
|
|
NextToken();
|
| 941 |
|
|
if (token==',') {
|
| 942 |
|
|
NextToken();
|
| 943 |
|
|
incamt = expr();
|
| 944 |
|
|
prevToken();
|
| 945 |
|
|
}
|
| 946 |
|
|
if (segprefix >= 0)
|
| 947 |
|
|
sg = segprefix;
|
| 948 |
|
|
if (Rb >= 0) {
|
| 949 |
|
|
emitImm0(disp,lastsym!=(SYM*)NULL);
|
| 950 |
|
|
fixup = 11;
|
| 951 |
|
|
oc = 0xC1; // INCX
|
| 952 |
|
|
emitAlignedCode(oc);
|
| 953 |
|
|
if (bGen && lastsym && Ra != 249 && !use_gp)
|
| 954 |
|
|
if( lastsym->segment < 5)
|
| 955 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
|
| 956 |
|
|
(lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
|
| 957 |
|
|
emitCode(Ra);
|
| 958 |
|
|
emitCode(Rb);
|
| 959 |
|
|
emitCode(incamt & 255);
|
| 960 |
|
|
emitCode(sc | ((sg & 15) << 2));
|
| 961 |
|
|
return;
|
| 962 |
|
|
}
|
| 963 |
|
|
oc = 0xC0; // INC
|
| 964 |
|
|
fixup = 10; // 12 bit
|
| 965 |
|
|
if (disp < 0xFFFFFFFFFFFFF700LL || disp > 0x7FFLL) /*{
|
| 966 |
|
|
if (lastsym != (SYM *)NULL)
|
| 967 |
|
|
emitImm12(disp,!lastsym->defined);
|
| 968 |
|
|
else
|
| 969 |
|
|
emitImm12(disp,0);
|
| 970 |
|
|
}*/
|
| 971 |
|
|
emitImm12(disp,lastsym!=(SYM*)NULL);
|
| 972 |
|
|
emitAlignedCode(oc);
|
| 973 |
|
|
if (bGen && lastsym && Ra != 249 && !use_gp)
|
| 974 |
|
|
if( lastsym->segment < 5)
|
| 975 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
|
| 976 |
|
|
(lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
|
| 977 |
|
|
if (Ra < 0) Ra = 0;
|
| 978 |
|
|
emitCode(Ra);
|
| 979 |
|
|
emitCode(incamt & 255);
|
| 980 |
|
|
emitCode(((disp << 4) & 0xF0) | (sg & 15));
|
| 981 |
|
|
emitCode((disp >> 4) & 255);
|
| 982 |
|
|
ScanToEOL();
|
| 983 |
|
|
}
|
| 984 |
|
|
|
| 985 |
|
|
// ----------------------------------------------------------------------------
|
| 986 |
|
|
// pea disp[r2]
|
| 987 |
|
|
// pea [r2+r3]
|
| 988 |
|
|
// ----------------------------------------------------------------------------
|
| 989 |
|
|
|
| 990 |
|
|
static void process_pea()
|
| 991 |
|
|
{
|
| 992 |
|
|
int oc;
|
| 993 |
|
|
int Ra;
|
| 994 |
|
|
int Rb;
|
| 995 |
|
|
int sc;
|
| 996 |
|
|
int sg;
|
| 997 |
|
|
char *p;
|
| 998 |
|
|
int64_t disp;
|
| 999 |
|
|
int fixup = 5;
|
| 1000 |
|
|
|
| 1001 |
|
|
p = inptr;
|
| 1002 |
|
|
NextToken();
|
| 1003 |
|
|
mem_operand(&disp, &Ra, &Rb, &sc, &sg);
|
| 1004 |
|
|
if (segprefix >= 0)
|
| 1005 |
|
|
sg = segprefix;
|
| 1006 |
|
|
if (Rb >= 0) {
|
| 1007 |
|
|
emitImm0(disp,lastsym!=(SYM*)NULL);
|
| 1008 |
|
|
fixup = 11;
|
| 1009 |
|
|
oc = 0xB9; // PEAX
|
| 1010 |
|
|
emitAlignedCode(oc);
|
| 1011 |
|
|
if (bGen && lastsym && Ra != 249 && !use_gp)
|
| 1012 |
|
|
if( lastsym->segment < 5)
|
| 1013 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
|
| 1014 |
|
|
(lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
|
| 1015 |
|
|
emitCode(Ra);
|
| 1016 |
|
|
emitCode(Rb);
|
| 1017 |
|
|
emitCode(0x00);
|
| 1018 |
|
|
emitCode(sc | ((sg & 15) << 2));
|
| 1019 |
|
|
return;
|
| 1020 |
|
|
}
|
| 1021 |
|
|
oc = 0xB8; // PEA
|
| 1022 |
|
|
fixup = 10; // 12 bit
|
| 1023 |
|
|
if (disp < 0xFFFFFFFFFFFFF700LL || disp > 0x7FFLL) /*{
|
| 1024 |
|
|
if (lastsym != (SYM *)NULL)
|
| 1025 |
|
|
emitImm12(disp,!lastsym->defined);
|
| 1026 |
|
|
else
|
| 1027 |
|
|
emitImm12(disp,0);
|
| 1028 |
|
|
}*/
|
| 1029 |
|
|
emitImm12(disp,lastsym!=(SYM*)NULL);
|
| 1030 |
|
|
emitAlignedCode(oc);
|
| 1031 |
|
|
if (bGen && lastsym && Ra != 249 && !use_gp)
|
| 1032 |
|
|
if( lastsym->segment < 5)
|
| 1033 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
|
| 1034 |
|
|
(lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
|
| 1035 |
|
|
if (Ra < 0) Ra = 0;
|
| 1036 |
|
|
emitCode(Ra);
|
| 1037 |
|
|
emitCode(0x00);
|
| 1038 |
|
|
emitCode((disp << 4) & 255);
|
| 1039 |
|
|
emitCode((disp >> 4) & 255);
|
| 1040 |
|
|
ScanToEOL();
|
| 1041 |
|
|
}
|
| 1042 |
|
|
|
| 1043 |
|
|
// ----------------------------------------------------------------------------
|
| 1044 |
|
|
// lmr r1,r12,d[r252]
|
| 1045 |
|
|
// ----------------------------------------------------------------------------
|
| 1046 |
|
|
|
| 1047 |
|
|
static void process_lmr(int oc)
|
| 1048 |
|
|
{
|
| 1049 |
|
|
int Ra;
|
| 1050 |
|
|
int Rb;
|
| 1051 |
|
|
int Rc;
|
| 1052 |
|
|
int sg;
|
| 1053 |
|
|
int fixup;
|
| 1054 |
|
|
int64_t disp;
|
| 1055 |
|
|
|
| 1056 |
|
|
disp = 0;
|
| 1057 |
|
|
Ra = getRegister();
|
| 1058 |
|
|
need(',');
|
| 1059 |
|
|
Rb = getRegister();
|
| 1060 |
|
|
need(',');
|
| 1061 |
|
|
NextToken();
|
| 1062 |
|
|
if (token=='[') {
|
| 1063 |
|
|
Rc = getRegister();
|
| 1064 |
|
|
need(']');
|
| 1065 |
|
|
}
|
| 1066 |
|
|
else {
|
| 1067 |
|
|
Rc = getRegister();
|
| 1068 |
|
|
if (Rc==-1) {
|
| 1069 |
|
|
disp = expr();
|
| 1070 |
|
|
if (token!='[') {
|
| 1071 |
|
|
printf("Expecting register indirection.\r\n");
|
| 1072 |
|
|
return;
|
| 1073 |
|
|
}
|
| 1074 |
|
|
Rc = getRegister();
|
| 1075 |
|
|
need(']');
|
| 1076 |
|
|
if (Rc==-1) {
|
| 1077 |
|
|
printf("Expecting a register.\r\n");
|
| 1078 |
|
|
return;
|
| 1079 |
|
|
}
|
| 1080 |
|
|
fixup = 11;
|
| 1081 |
|
|
emitImm0(disp,lastsym!=(SYM*)NULL);
|
| 1082 |
|
|
sg = 1;
|
| 1083 |
|
|
if (Rc==255 || Rc==253)
|
| 1084 |
|
|
sg = 14;
|
| 1085 |
|
|
else if (Rc==254)
|
| 1086 |
|
|
sg = 15;
|
| 1087 |
|
|
else if (Rc==252)
|
| 1088 |
|
|
sg = 12;
|
| 1089 |
|
|
if (segprefix >= 0)
|
| 1090 |
|
|
sg = segprefix;
|
| 1091 |
|
|
emitAlignedCode(oc);
|
| 1092 |
|
|
if (bGen && lastsym && Rc != 249 && !use_gp)
|
| 1093 |
|
|
if( lastsym->segment < 5)
|
| 1094 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | fixup | (lastsym->isExtern ? 128 : 0)|
|
| 1095 |
|
|
(lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
|
| 1096 |
|
|
emitCode(Ra);
|
| 1097 |
|
|
emitCode(Rb);
|
| 1098 |
|
|
emitCode(Rc);
|
| 1099 |
|
|
emitCode(sg);
|
| 1100 |
|
|
return;
|
| 1101 |
|
|
}
|
| 1102 |
|
|
}
|
| 1103 |
|
|
sg = 1;
|
| 1104 |
|
|
if (Rc==255 || Rc==253)
|
| 1105 |
|
|
sg = 14;
|
| 1106 |
|
|
else if (Rc==254)
|
| 1107 |
|
|
sg = 15;
|
| 1108 |
|
|
else if (Rc==252)
|
| 1109 |
|
|
sg = 12;
|
| 1110 |
|
|
if (segprefix >= 0)
|
| 1111 |
|
|
sg = segprefix;
|
| 1112 |
|
|
emitAlignedCode(oc);
|
| 1113 |
|
|
emitCode(Ra);
|
| 1114 |
|
|
emitCode(Rb);
|
| 1115 |
|
|
emitCode(Rc);
|
| 1116 |
|
|
emitCode(sg);
|
| 1117 |
|
|
}
|
| 1118 |
|
|
|
| 1119 |
|
|
// ----------------------------------------------------------------------------
|
| 1120 |
|
|
// push r1/r2/r3/r4
|
| 1121 |
|
|
// push #123
|
| 1122 |
|
|
// ----------------------------------------------------------------------------
|
| 1123 |
|
|
|
| 1124 |
|
|
static void process_pushpop(int oc)
|
| 1125 |
|
|
{
|
| 1126 |
|
|
int Ra,Rb,Rc,Rd;
|
| 1127 |
|
|
int64_t val;
|
| 1128 |
|
|
|
| 1129 |
|
|
Ra = -1;
|
| 1130 |
|
|
Rb = -1;
|
| 1131 |
|
|
Rc = -1;
|
| 1132 |
|
|
Rd = -1;
|
| 1133 |
|
|
NextToken();
|
| 1134 |
|
|
if (token=='#' && oc==0xA6) { // Filter to PUSH
|
| 1135 |
|
|
val = expr();
|
| 1136 |
|
|
emitImm32(val,(code_bits > 32 || data_bits > 32) && lastsym!=(SYM *)NULL);
|
| 1137 |
|
|
emitAlignedCode(0xAD);
|
| 1138 |
|
|
if (bGen && lastsym && !use_gp)
|
| 1139 |
|
|
if( lastsym->segment < 5)
|
| 1140 |
|
|
sections[segment+7].AddRel(sections[segment].index,((lastsym->ord+1) << 32) | 1 | (lastsym->isExtern ? 128 : 0)|
|
| 1141 |
|
|
(lastsym->segment==codeseg ? code_bits << 8 : data_bits << 8));
|
| 1142 |
|
|
emitCode(val & 255);
|
| 1143 |
|
|
emitCode((val >> 8) & 255);
|
| 1144 |
|
|
emitCode((val >> 16) & 255);
|
| 1145 |
|
|
emitCode((val >> 24) & 255);
|
| 1146 |
|
|
}
|
| 1147 |
|
|
else {
|
| 1148 |
|
|
prevToken();
|
| 1149 |
|
|
Ra = getRegister();
|
| 1150 |
|
|
if (token=='/' || token==',') {
|
| 1151 |
|
|
Rb = getRegister();
|
| 1152 |
|
|
if (token=='/' || token==',') {
|
| 1153 |
|
|
Rc = getRegister();
|
| 1154 |
|
|
if (token=='/' || token==',') {
|
| 1155 |
|
|
Rd = getRegister();
|
| 1156 |
|
|
}
|
| 1157 |
|
|
}
|
| 1158 |
|
|
}
|
| 1159 |
|
|
prevToken();
|
| 1160 |
|
|
emitAlignedCode(oc);
|
| 1161 |
|
|
emitCode(Ra>=0 ? Ra : 0);
|
| 1162 |
|
|
emitCode(Rb>=0 ? Rb : 0);
|
| 1163 |
|
|
emitCode(Rc>=0 ? Rc : 0);
|
| 1164 |
|
|
emitCode(Rd>=0 ? Rd : 0);
|
| 1165 |
|
|
}
|
| 1166 |
|
|
}
|
| 1167 |
|
|
|
| 1168 |
|
|
// ----------------------------------------------------------------------------
|
| 1169 |
|
|
// mov r1,r2
|
| 1170 |
|
|
// ----------------------------------------------------------------------------
|
| 1171 |
|
|
|
| 1172 |
|
|
static void process_mov(int oc)
|
| 1173 |
|
|
{
|
| 1174 |
|
|
int Ra;
|
| 1175 |
|
|
int Rt;
|
| 1176 |
|
|
|
| 1177 |
|
|
Rt = getRegister();
|
| 1178 |
|
|
need(',');
|
| 1179 |
|
|
Ra = getRegister();
|
| 1180 |
|
|
emitAlignedCode(0x01);
|
| 1181 |
|
|
emitCode(Ra);
|
| 1182 |
|
|
emitCode(Rt);
|
| 1183 |
|
|
emitCode(0x00);
|
| 1184 |
|
|
emitCode(oc);
|
| 1185 |
|
|
prevToken();
|
| 1186 |
|
|
}
|
| 1187 |
|
|
|
| 1188 |
|
|
// ----------------------------------------------------------------------------
|
| 1189 |
|
|
// rts
|
| 1190 |
|
|
// rts #24
|
| 1191 |
|
|
// ----------------------------------------------------------------------------
|
| 1192 |
|
|
|
| 1193 |
|
|
static void process_rts(int oc)
|
| 1194 |
|
|
{
|
| 1195 |
|
|
int64_t val;
|
| 1196 |
|
|
|
| 1197 |
|
|
val = 0;
|
| 1198 |
|
|
NextToken();
|
| 1199 |
|
|
if (token=='#') {
|
| 1200 |
|
|
val = expr();
|
| 1201 |
|
|
}
|
| 1202 |
|
|
emitAlignedCode(oc);
|
| 1203 |
|
|
emitCode(0x00);
|
| 1204 |
|
|
emitCode(val & 255);
|
| 1205 |
|
|
emitCode((val >> 8) & 255);
|
| 1206 |
|
|
emitCode(0x00);
|
| 1207 |
|
|
}
|
| 1208 |
|
|
|
| 1209 |
|
|
// ----------------------------------------------------------------------------
|
| 1210 |
|
|
// shli r1,r2,#5
|
| 1211 |
|
|
// ----------------------------------------------------------------------------
|
| 1212 |
|
|
|
| 1213 |
|
|
static void process_shifti(int oc)
|
| 1214 |
|
|
{
|
| 1215 |
|
|
int Ra;
|
| 1216 |
|
|
int Rt;
|
| 1217 |
|
|
int64_t val;
|
| 1218 |
|
|
|
| 1219 |
|
|
Rt = getRegister();
|
| 1220 |
|
|
need(',');
|
| 1221 |
|
|
Ra = getRegister();
|
| 1222 |
|
|
need(',');
|
| 1223 |
|
|
NextToken();
|
| 1224 |
|
|
val = expr();
|
| 1225 |
|
|
emitAlignedCode(0x02);
|
| 1226 |
|
|
emitCode(Ra);
|
| 1227 |
|
|
emitCode(val & 63);
|
| 1228 |
|
|
emitCode(Rt);
|
| 1229 |
|
|
emitCode(oc);
|
| 1230 |
|
|
}
|
| 1231 |
|
|
|
| 1232 |
|
|
// ----------------------------------------------------------------------------
|
| 1233 |
|
|
// gran r1
|
| 1234 |
|
|
// ----------------------------------------------------------------------------
|
| 1235 |
|
|
|
| 1236 |
|
|
static void process_gran(int oc)
|
| 1237 |
|
|
{
|
| 1238 |
|
|
int Rt;
|
| 1239 |
|
|
|
| 1240 |
|
|
Rt = getRegister();
|
| 1241 |
|
|
emitAlignedCode(0x01);
|
| 1242 |
|
|
emitCode(0x00);
|
| 1243 |
|
|
emitCode(Rt);
|
| 1244 |
|
|
emitCode(0x00);
|
| 1245 |
|
|
emitCode(oc);
|
| 1246 |
|
|
prevToken();
|
| 1247 |
|
|
}
|
| 1248 |
|
|
|
| 1249 |
|
|
// ----------------------------------------------------------------------------
|
| 1250 |
|
|
// ----------------------------------------------------------------------------
|
| 1251 |
|
|
|
| 1252 |
|
|
static void process_mtspr(int oc)
|
| 1253 |
|
|
{
|
| 1254 |
|
|
int spr;
|
| 1255 |
|
|
int Ra;
|
| 1256 |
|
|
|
| 1257 |
|
|
spr = getSprRegister();
|
| 1258 |
|
|
need(',');
|
| 1259 |
|
|
Ra = getRegister();
|
| 1260 |
|
|
emitAlignedCode(0x01);
|
| 1261 |
|
|
emitCode(Ra);
|
| 1262 |
|
|
emitCode(spr);
|
| 1263 |
|
|
emitCode(0x00);
|
| 1264 |
|
|
emitCode(oc);
|
| 1265 |
|
|
if (Ra >= 0)
|
| 1266 |
|
|
prevToken();
|
| 1267 |
|
|
}
|
| 1268 |
|
|
|
| 1269 |
|
|
// ----------------------------------------------------------------------------
|
| 1270 |
|
|
// ----------------------------------------------------------------------------
|
| 1271 |
|
|
|
| 1272 |
|
|
static void process_mtfp(int oc)
|
| 1273 |
|
|
{
|
| 1274 |
|
|
int fpr;
|
| 1275 |
|
|
int Ra;
|
| 1276 |
|
|
|
| 1277 |
|
|
fpr = getFPRegister();
|
| 1278 |
|
|
need(',');
|
| 1279 |
|
|
Ra = getRegister();
|
| 1280 |
|
|
emitAlignedCode(0x01);
|
| 1281 |
|
|
emitCode(Ra);
|
| 1282 |
|
|
emitCode(fpr);
|
| 1283 |
|
|
emitCode(0x00);
|
| 1284 |
|
|
emitCode(oc);
|
| 1285 |
|
|
if (Ra >= 0)
|
| 1286 |
|
|
prevToken();
|
| 1287 |
|
|
}
|
| 1288 |
|
|
|
| 1289 |
|
|
// ----------------------------------------------------------------------------
|
| 1290 |
|
|
// ----------------------------------------------------------------------------
|
| 1291 |
|
|
|
| 1292 |
|
|
static void process_mfspr(int oc)
|
| 1293 |
|
|
{
|
| 1294 |
|
|
int spr;
|
| 1295 |
|
|
int Rt;
|
| 1296 |
|
|
|
| 1297 |
|
|
Rt = getRegister();
|
| 1298 |
|
|
need(',');
|
| 1299 |
|
|
spr = getSprRegister();
|
| 1300 |
|
|
emitAlignedCode(0x01);
|
| 1301 |
|
|
emitCode(spr);
|
| 1302 |
|
|
emitCode(Rt);
|
| 1303 |
|
|
emitCode(0x00);
|
| 1304 |
|
|
emitCode(oc);
|
| 1305 |
|
|
if (spr >= 0)
|
| 1306 |
|
|
prevToken();
|
| 1307 |
|
|
}
|
| 1308 |
|
|
|
| 1309 |
|
|
// ----------------------------------------------------------------------------
|
| 1310 |
|
|
// ----------------------------------------------------------------------------
|
| 1311 |
|
|
|
| 1312 |
|
|
static void process_mffp(int oc)
|
| 1313 |
|
|
{
|
| 1314 |
|
|
int fpr;
|
| 1315 |
|
|
int Rt;
|
| 1316 |
|
|
|
| 1317 |
|
|
Rt = getRegister();
|
| 1318 |
|
|
need(',');
|
| 1319 |
|
|
fpr = getFPRegister();
|
| 1320 |
|
|
emitAlignedCode(0x01);
|
| 1321 |
|
|
emitCode(fpr);
|
| 1322 |
|
|
emitCode(Rt);
|
| 1323 |
|
|
emitCode(0x00);
|
| 1324 |
|
|
emitCode(oc);
|
| 1325 |
|
|
if (fpr >= 0)
|
| 1326 |
|
|
prevToken();
|
| 1327 |
|
|
}
|
| 1328 |
|
|
|
| 1329 |
|
|
// ----------------------------------------------------------------------------
|
| 1330 |
|
|
// ----------------------------------------------------------------------------
|
| 1331 |
|
|
|
| 1332 |
|
|
static void process_fprdstat(int oc)
|
| 1333 |
|
|
{
|
| 1334 |
|
|
int Rt;
|
| 1335 |
|
|
|
| 1336 |
|
|
Rt = getRegister();
|
| 1337 |
|
|
emitAlignedCode(0x01);
|
| 1338 |
|
|
emitCode(0x00);
|
| 1339 |
|
|
emitCode(Rt);
|
| 1340 |
|
|
emitCode(0x00);
|
| 1341 |
|
|
emitCode(oc);
|
| 1342 |
|
|
}
|
| 1343 |
|
|
|
| 1344 |
|
|
// ----------------------------------------------------------------------------
|
| 1345 |
|
|
// ----------------------------------------------------------------------------
|
| 1346 |
|
|
|
| 1347 |
|
|
static void ProcessEOL(int opt)
|
| 1348 |
|
|
{
|
| 1349 |
|
|
int nn,mm;
|
| 1350 |
|
|
int first;
|
| 1351 |
|
|
int cc;
|
| 1352 |
|
|
|
| 1353 |
|
|
//printf("Line: %d\r", lineno);
|
| 1354 |
|
|
segprefix = -1;
|
| 1355 |
|
|
if (bGen && (segment==codeseg || segment==dataseg || segment==rodataseg)) {
|
| 1356 |
|
|
if ((ca & 15)==15 && segment==codeseg) {
|
| 1357 |
|
|
ca++;
|
| 1358 |
|
|
binstart++;
|
| 1359 |
|
|
}
|
| 1360 |
|
|
nn = binstart;
|
| 1361 |
|
|
cc = 8;
|
| 1362 |
|
|
if (segment==codeseg) {
|
| 1363 |
|
|
cc = 5;
|
| 1364 |
|
|
/*
|
| 1365 |
|
|
if (sections[segment].bytes[binstart]==0x61) {
|
| 1366 |
|
|
fprintf(ofp, "%06LLX ", ca);
|
| 1367 |
|
|
for (nn = binstart; nn < binstart + 5 && nn < sections[segment].index; nn++) {
|
| 1368 |
|
|
fprintf(ofp, "%02X ", sections[segment].bytes[nn]);
|
| 1369 |
|
|
}
|
| 1370 |
|
|
fprintf(ofp, " ; imm\n");
|
| 1371 |
|
|
if (((ca+5) & 15)==15) {
|
| 1372 |
|
|
ca+=6;
|
| 1373 |
|
|
binstart+=6;
|
| 1374 |
|
|
nn++;
|
| 1375 |
|
|
}
|
| 1376 |
|
|
else {
|
| 1377 |
|
|
ca += 5;
|
| 1378 |
|
|
binstart += 5;
|
| 1379 |
|
|
}
|
| 1380 |
|
|
}
|
| 1381 |
|
|
*/
|
| 1382 |
|
|
/*
|
| 1383 |
|
|
if (sections[segment].bytes[binstart]==0xfd) {
|
| 1384 |
|
|
fprintf(ofp, "%06LLX ", ca);
|
| 1385 |
|
|
for (nn = binstart; nn < binstart + 5 && nn < sections[segment].index; nn++) {
|
| 1386 |
|
|
fprintf(ofp, "%02X ", sections[segment].bytes[nn]);
|
| 1387 |
|
|
}
|
| 1388 |
|
|
fprintf(ofp, " ; imm\n");
|
| 1389 |
|
|
if (((ca+5) & 15)==15) {
|
| 1390 |
|
|
ca+=6;
|
| 1391 |
|
|
binstart+=6;
|
| 1392 |
|
|
nn++;
|
| 1393 |
|
|
}
|
| 1394 |
|
|
else {
|
| 1395 |
|
|
ca += 5;
|
| 1396 |
|
|
binstart += 5;
|
| 1397 |
|
|
}
|
| 1398 |
|
|
}
|
| 1399 |
|
|
if (sections[segment].bytes[binstart]==0xfe) {
|
| 1400 |
|
|
fprintf(ofp, "%06LLX ", ca);
|
| 1401 |
|
|
for (nn = binstart; nn < binstart + 5 && nn < sections[segment].index; nn++) {
|
| 1402 |
|
|
fprintf(ofp, "%02X ", sections[segment].bytes[nn]);
|
| 1403 |
|
|
}
|
| 1404 |
|
|
fprintf(ofp, " ; imm\n");
|
| 1405 |
|
|
if (((ca+5) & 15)==15) {
|
| 1406 |
|
|
ca+=6;
|
| 1407 |
|
|
nn++;
|
| 1408 |
|
|
}
|
| 1409 |
|
|
else {
|
| 1410 |
|
|
ca += 5;
|
| 1411 |
|
|
}
|
| 1412 |
|
|
}
|
| 1413 |
|
|
*/
|
| 1414 |
|
|
}
|
| 1415 |
|
|
|
| 1416 |
|
|
first = 1;
|
| 1417 |
|
|
while (nn < sections[segment].index) {
|
| 1418 |
|
|
fprintf(ofp, "%06LLX ", ca);
|
| 1419 |
|
|
for (mm = nn; nn < mm + cc && nn < sections[segment].index; nn++) {
|
| 1420 |
|
|
fprintf(ofp, "%02X ", sections[segment].bytes[nn]);
|
| 1421 |
|
|
}
|
| 1422 |
|
|
for (; nn < mm + cc; nn++)
|
| 1423 |
|
|
fprintf(ofp, " ");
|
| 1424 |
|
|
if (first & opt) {
|
| 1425 |
|
|
fprintf(ofp, "\t%.*s\n", inptr-stptr-1, stptr);
|
| 1426 |
|
|
first = 0;
|
| 1427 |
|
|
}
|
| 1428 |
|
|
else
|
| 1429 |
|
|
fprintf(ofp, opt ? "\n" : "; NOP Ramp\n");
|
| 1430 |
|
|
ca += cc;
|
| 1431 |
|
|
if ((ca & 15)==15 && segment==codeseg) {
|
| 1432 |
|
|
ca++;
|
| 1433 |
|
|
nn++;
|
| 1434 |
|
|
}
|
| 1435 |
|
|
}
|
| 1436 |
|
|
// empty (codeless) line
|
| 1437 |
|
|
if (binstart==sections[segment].index) {
|
| 1438 |
|
|
fprintf(ofp, "%24s\t%.*s", "", inptr-stptr, stptr);
|
| 1439 |
|
|
}
|
| 1440 |
|
|
} // bGen
|
| 1441 |
|
|
if (opt) {
|
| 1442 |
|
|
stptr = inptr;
|
| 1443 |
|
|
lineno++;
|
| 1444 |
|
|
}
|
| 1445 |
|
|
binstart = sections[segment].index;
|
| 1446 |
|
|
ca = sections[segment].address;
|
| 1447 |
|
|
}
|
| 1448 |
|
|
|
| 1449 |
|
|
// ----------------------------------------------------------------------------
|
| 1450 |
|
|
// ----------------------------------------------------------------------------
|
| 1451 |
|
|
|
| 1452 |
|
|
void Table888mmu_processMaster()
|
| 1453 |
|
|
{
|
| 1454 |
|
|
int nn,mm;
|
| 1455 |
|
|
int64_t bs1, bs2;
|
| 1456 |
|
|
|
| 1457 |
|
|
lineno = 1;
|
| 1458 |
|
|
binndx = 0;
|
| 1459 |
|
|
binstart = 0;
|
| 1460 |
|
|
bs1 = 0;
|
| 1461 |
|
|
bs2 = 0;
|
| 1462 |
|
|
inptr = &masterFile[0];
|
| 1463 |
|
|
stptr = inptr;
|
| 1464 |
|
|
code_address = 0;
|
| 1465 |
|
|
bss_address = 0;
|
| 1466 |
|
|
start_address = 0;
|
| 1467 |
|
|
first_org = 1;
|
| 1468 |
|
|
first_rodata = 1;
|
| 1469 |
|
|
first_data = 1;
|
| 1470 |
|
|
first_bss = 1;
|
| 1471 |
|
|
for (nn = 0; nn < 12; nn++) {
|
| 1472 |
|
|
sections[nn].index = 0;
|
| 1473 |
|
|
if (nn == 0)
|
| 1474 |
|
|
sections[nn].address = 0;
|
| 1475 |
|
|
else
|
| 1476 |
|
|
sections[nn].address = 0;
|
| 1477 |
|
|
sections[nn].start = 0;
|
| 1478 |
|
|
sections[nn].end = 0;
|
| 1479 |
|
|
}
|
| 1480 |
|
|
ca = code_address;
|
| 1481 |
|
|
segment = codeseg;
|
| 1482 |
|
|
memset(current_label,0,sizeof(current_label));
|
| 1483 |
|
|
NextToken();
|
| 1484 |
|
|
while (token != tk_eof) {
|
| 1485 |
|
|
// printf("\t%.*s\n", inptr-stptr-1, stptr);
|
| 1486 |
|
|
// printf("token=%d\r", token);
|
| 1487 |
|
|
switch(token) {
|
| 1488 |
|
|
case tk_eol: ProcessEOL(1); break;
|
| 1489 |
|
|
case tk_add: process_rrop(0x04); break;
|
| 1490 |
|
|
case tk_addi: process_riop(0x04); break;
|
| 1491 |
|
|
case tk_addu: process_rrop(0x14); break;
|
| 1492 |
|
|
case tk_addui: process_riop(0x14); break;
|
| 1493 |
|
|
case tk_align: process_align(); continue; break;
|
| 1494 |
|
|
case tk_and: process_rrop(0x20); break;
|
| 1495 |
|
|
case tk_andi: process_riop(0x0C); break;
|
| 1496 |
|
|
case tk_asr: process_rrop(0x44); break;
|
| 1497 |
|
|
case tk_asri: process_shifti(0x54); break;
|
| 1498 |
|
|
case tk_beq: process_bcc(0x40); break;
|
| 1499 |
|
|
case tk_bge: process_bcc(0x4A); break;
|
| 1500 |
|
|
case tk_bgeu: process_bcc(0x4E); break;
|
| 1501 |
|
|
case tk_bgt: process_bcc(0x48); break;
|
| 1502 |
|
|
case tk_bgtu: process_bcc(0x4C); break;
|
| 1503 |
|
|
case tk_ble: process_bcc(0x49); break;
|
| 1504 |
|
|
case tk_bleu: process_bcc(0x4D); break;
|
| 1505 |
|
|
case tk_blt: process_bcc(0x4B); break;
|
| 1506 |
|
|
case tk_bltu: process_bcc(0x4F); break;
|
| 1507 |
|
|
case tk_bmi: process_bcc(0x44); break;
|
| 1508 |
|
|
case tk_bne: process_bcc(0x41); break;
|
| 1509 |
|
|
case tk_bpl: process_bcc(0x45); break; // also brpl
|
| 1510 |
|
|
case tk_bra: process_bra(0x46); break;
|
| 1511 |
|
|
case tk_brnz: process_bcc(0x59); break;
|
| 1512 |
|
|
case tk_brz: process_bcc(0x58); break;
|
| 1513 |
|
|
case tk_bvc: process_bcc(0x43); break;
|
| 1514 |
|
|
case tk_bvs: process_bcc(0x42); break;
|
| 1515 |
|
|
case tk_bsr: process_bra(0x56); break;
|
| 1516 |
|
|
case tk_bss:
|
| 1517 |
|
|
if (first_bss) {
|
| 1518 |
|
|
while(sections[segment].address & 4095)
|
| 1519 |
|
|
emitByte(0x00);
|
| 1520 |
|
|
sections[3].address = sections[segment].address;
|
| 1521 |
|
|
first_bss = 0;
|
| 1522 |
|
|
binstart = sections[3].index;
|
| 1523 |
|
|
ca = sections[3].address;
|
| 1524 |
|
|
}
|
| 1525 |
|
|
segment = bssseg;
|
| 1526 |
|
|
break;
|
| 1527 |
|
|
case tk_cli: emit_insn(0x3100000001); break;
|
| 1528 |
|
|
case tk_cmp: process_rrop(0x06); break;
|
| 1529 |
|
|
case tk_code: process_code(); break;
|
| 1530 |
|
|
case tk_com: process_rop(0x06); break;
|
| 1531 |
|
|
case tk_cs: segprefix = 15; break;
|
| 1532 |
|
|
case tk_data:
|
| 1533 |
|
|
if (first_data) {
|
| 1534 |
|
|
while(sections[segment].address & 4095)
|
| 1535 |
|
|
emitByte(0x00);
|
| 1536 |
|
|
sections[2].address = sections[segment].address; // set starting address
|
| 1537 |
|
|
first_data = 0;
|
| 1538 |
|
|
binstart = sections[2].index;
|
| 1539 |
|
|
ca = sections[2].address;
|
| 1540 |
|
|
}
|
| 1541 |
|
|
process_data(dataseg);
|
| 1542 |
|
|
break;
|
| 1543 |
|
|
case tk_db: process_db(); break;
|
| 1544 |
|
|
case tk_dbnz: process_bcc(0x5A); break;
|
| 1545 |
|
|
case tk_dc: process_dc(); break;
|
| 1546 |
|
|
case tk_dh: process_dh(); break;
|
| 1547 |
|
|
case tk_div: process_rrop(0x08); break;
|
| 1548 |
|
|
case tk_divu: process_rrop(0x18); break;
|
| 1549 |
|
|
case tk_ds: segprefix = 1; break;
|
| 1550 |
|
|
case tk_dw: process_dw(); break;
|
| 1551 |
|
|
case tk_end: goto j1;
|
| 1552 |
|
|
case tk_endpublic: break;
|
| 1553 |
|
|
case tk_eor: process_rrop(0x22); break;
|
| 1554 |
|
|
case tk_eori: process_riop(0x0E); break;
|
| 1555 |
|
|
case tk_extern: process_extern(); break;
|
| 1556 |
|
|
case tk_fabs: process_fprop(0x88); break;
|
| 1557 |
|
|
case tk_fadd: process_fprrop(0xF4); break;
|
| 1558 |
|
|
case tk_fcmp: process_fprrop(0xF6); break;
|
| 1559 |
|
|
case tk_fcx: process_fpstat(0x74); break;
|
| 1560 |
|
|
case tk_fdiv: process_fprrop(0xF8); break;
|
| 1561 |
|
|
case tk_fdx: process_fpstat(0x77); break;
|
| 1562 |
|
|
case tk_fex: process_fpstat(0x76); break;
|
| 1563 |
|
|
case tk_fill: process_fill(); break;
|
| 1564 |
|
|
case tk_fix2flt: process_fprop(0x84); break;
|
| 1565 |
|
|
case tk_flt2fix: process_fprop(0x85); break;
|
| 1566 |
|
|
case tk_fmov: process_fprop(0x87); break;
|
| 1567 |
|
|
case tk_fmul: process_fprrop(0xF7); break;
|
| 1568 |
|
|
case tk_fnabs: process_fprop(0x89); break;
|
| 1569 |
|
|
case tk_fneg: process_fprop(0x8A); break;
|
| 1570 |
|
|
case tk_frm: process_fpstat(0x78); break;
|
| 1571 |
|
|
case tk_fstat: process_fprdstat(0x86); break;
|
| 1572 |
|
|
case tk_fsub: process_fprrop(0xF5); break;
|
| 1573 |
|
|
case tk_ftx: process_fpstat(0x75); break;
|
| 1574 |
|
|
case tk_gran: process_gran(0x14); break;
|
| 1575 |
|
|
case tk_inc: process_inc(0xC0); break;
|
| 1576 |
|
|
case tk_ios: segprefix = 11; break;
|
| 1577 |
|
|
case tk_jgr: process_jsp(0x57); break;
|
| 1578 |
|
|
case tk_jmp: process_jmp(0x50); break;
|
| 1579 |
|
|
case tk_jsp: process_jsp(0x61); break;
|
| 1580 |
|
|
case tk_jsr: process_jmp(0x51); break;
|
| 1581 |
|
|
case tk_lb: process_load(0x80); break;
|
| 1582 |
|
|
case tk_lbu: process_load(0x81); break;
|
| 1583 |
|
|
case tk_lc: process_load(0x82); break;
|
| 1584 |
|
|
case tk_lcu: process_load(0x83); break;
|
| 1585 |
|
|
case tk_ldi: process_ldi(0x16); break;
|
| 1586 |
|
|
case tk_lea: process_load(0x9F); break;
|
| 1587 |
|
|
case tk_lh: process_load(0x84); break;
|
| 1588 |
|
|
case tk_lhu: process_load(0x85); break;
|
| 1589 |
|
|
case tk_lmr: process_lmr(0x9C); break;
|
| 1590 |
|
|
case tk_lw: process_load(0x86); break;
|
| 1591 |
|
|
case tk_mffp: process_mffp(0x4B); break;
|
| 1592 |
|
|
case tk_mfspr: process_mfspr(0x49); break;
|
| 1593 |
|
|
case tk_mod: process_rrop(0x09); break;
|
| 1594 |
|
|
case tk_modu: process_rrop(0x19); break;
|
| 1595 |
|
|
case tk_mov: process_mov(0x04); break;
|
| 1596 |
|
|
case tk_mtfp: process_mtfp(0x4A); break;
|
| 1597 |
|
|
case tk_mtspr: process_mtspr(0x48); break;
|
| 1598 |
|
|
case tk_mul: process_rrop(0x07); break;
|
| 1599 |
|
|
case tk_muli: process_riop(0x07); break;
|
| 1600 |
|
|
case tk_mulu: process_rrop(0x17); break;
|
| 1601 |
|
|
case tk_mului: process_riop(0x17); break;
|
| 1602 |
|
|
case tk_neg: process_rop(0x05); break;
|
| 1603 |
|
|
case tk_nop: emit_insn(0xEAEAEAEAEA); break;
|
| 1604 |
|
|
case tk_not: process_rop(0x07); break;
|
| 1605 |
|
|
case tk_or: process_rrop(0x21); break;
|
| 1606 |
|
|
case tk_ori: process_riop(0x0D); break;
|
| 1607 |
|
|
case tk_org: process_org(); break;
|
| 1608 |
|
|
case tk_pea: process_pea(); break;
|
| 1609 |
|
|
case tk_php: emit_insn(0x3200000001); break;
|
| 1610 |
|
|
case tk_plp: emit_insn(0x3300000001); break;
|
| 1611 |
|
|
case tk_pop: process_pushpop(0xA7); break;
|
| 1612 |
|
|
case tk_public: process_public(); break;
|
| 1613 |
|
|
case tk_push: process_pushpop(0xA6); break;
|
| 1614 |
|
|
case tk_rodata:
|
| 1615 |
|
|
if (first_rodata) {
|
| 1616 |
|
|
while(sections[segment].address & 4095)
|
| 1617 |
|
|
emitByte(0x00);
|
| 1618 |
|
|
sections[1].address = sections[segment].address;
|
| 1619 |
|
|
first_rodata = 0;
|
| 1620 |
|
|
binstart = sections[1].index;
|
| 1621 |
|
|
ca = sections[1].address;
|
| 1622 |
|
|
}
|
| 1623 |
|
|
segment = rodataseg;
|
| 1624 |
|
|
break;
|
| 1625 |
|
|
case tk_rol: process_rrop(0x41); break;
|
| 1626 |
|
|
case tk_ror: process_rrop(0x43); break;
|
| 1627 |
|
|
case tk_rti: emit_insn(0x4000000001); break;
|
| 1628 |
|
|
case tk_rts: process_rts(0x60); break;
|
| 1629 |
|
|
case tk_sb: process_store(0xa0); break;
|
| 1630 |
|
|
case tk_sc: process_store(0xa1); break;
|
| 1631 |
|
|
case tk_sei: emit_insn(0x3000000001); break;
|
| 1632 |
|
|
case tk_seq: process_rrop(0x60); break;
|
| 1633 |
|
|
case tk_seqi: process_riop(0x30); break;
|
| 1634 |
|
|
case tk_sge: process_rrop(0x6A); break;
|
| 1635 |
|
|
case tk_sgt: process_rrop(0x68); break;
|
| 1636 |
|
|
case tk_sle: process_rrop(0x69); break;
|
| 1637 |
|
|
case tk_slt: process_rrop(0x6B); break;
|
| 1638 |
|
|
case tk_sgeu: process_rrop(0x6E); break;
|
| 1639 |
|
|
case tk_sgtu: process_rrop(0x6C); break;
|
| 1640 |
|
|
case tk_sleu: process_rrop(0x6D); break;
|
| 1641 |
|
|
case tk_sltu: process_rrop(0x6F); break;
|
| 1642 |
|
|
case tk_sgei: process_rrop(0x3A); break;
|
| 1643 |
|
|
case tk_sgti: process_rrop(0x38); break;
|
| 1644 |
|
|
case tk_slei: process_rrop(0x39); break;
|
| 1645 |
|
|
case tk_slti: process_rrop(0x3B); break;
|
| 1646 |
|
|
case tk_sgeui: process_rrop(0x3E); break;
|
| 1647 |
|
|
case tk_sgtui: process_rrop(0x3C); break;
|
| 1648 |
|
|
case tk_sleui: process_rrop(0x3D); break;
|
| 1649 |
|
|
case tk_sltui: process_rrop(0x3F); break;
|
| 1650 |
|
|
case tk_sne: process_rrop(0x61); break;
|
| 1651 |
|
|
case tk_snei: process_riop(0x31); break;
|
| 1652 |
|
|
case tk_sh: process_store(0xa2); break;
|
| 1653 |
|
|
case tk_shl: process_rrop(0x40); break;
|
| 1654 |
|
|
case tk_shli: process_shifti(0x50); break;
|
| 1655 |
|
|
case tk_shru: process_rrop(0x42); break;
|
| 1656 |
|
|
case tk_shrui: process_shifti(0x52); break;
|
| 1657 |
|
|
case tk_smr: process_lmr(0xBC); break;
|
| 1658 |
|
|
case tk_ss: segprefix = 14; break;
|
| 1659 |
|
|
case tk_sub: process_rrop(0x05); break;
|
| 1660 |
|
|
case tk_subi: process_riop(0x05); break;
|
| 1661 |
|
|
case tk_subu: process_rrop(0x15); break;
|
| 1662 |
|
|
case tk_subui: process_riop(0x15); break;
|
| 1663 |
|
|
case tk_sxb: process_rop(0x08); break;
|
| 1664 |
|
|
case tk_sxc: process_rop(0x09); break;
|
| 1665 |
|
|
case tk_sxh: process_rop(0x0A); break;
|
| 1666 |
|
|
case tk_sw: process_store(0xa3); break;
|
| 1667 |
|
|
case tk_swap: process_rop(0x03); break;
|
| 1668 |
|
|
case tk_xor: process_rrop(0x22); break;
|
| 1669 |
|
|
case tk_xori: process_riop(0x0E); break;
|
| 1670 |
|
|
case tk_id: process_label(); break;
|
| 1671 |
|
|
}
|
| 1672 |
|
|
NextToken();
|
| 1673 |
|
|
}
|
| 1674 |
|
|
j1:
|
| 1675 |
|
|
;
|
| 1676 |
|
|
}
|
| 1677 |
|
|
|
