mirror of https://github.com/marketideas/qasm.git
921 lines
15 KiB
C++
921 lines
15 KiB
C++
#define ADD_ERROR_STRINGS
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#include "asm.h"
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#include "eval.h"
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#define CLASS MerlinLine
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CLASS::CLASS()
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{
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clear();
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}
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CLASS::CLASS(std::string line)
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{
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clear();
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set(line);
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}
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void CLASS::setError(uint32_t ecode)
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{
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errorcode = ecode;
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}
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void CLASS::print(uint32_t lineno)
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{
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int i, l;
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l = outbytect;
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if (l > 4)
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{
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l = 4;
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}
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//if ((opflags&OP_STD)!=OP_STD)
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if ((opcodelower != "inc") && (opcodelower != "ldx") && (opcodelower != "stx"))
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{
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//return;
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}
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if (errorcode > 0)
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{
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if (errorcode >= errFatal)
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{
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SetColor(CL_WHITE | CL_BOLD | BG_RED);
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}
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else
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{
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SetColor(CL_YELLOW | CL_BOLD | BG_NORMAL);
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}
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}
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else
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{
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SetColor(CL_WHITE | CL_BOLD | BG_NORMAL);
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}
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bool empty = false;
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if ((lable == "") && (opcode == "") && (operand == ""))
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{
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empty = true;
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}
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int b = 4;
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printf("%02X ", addressmode);
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printf("%6d", lineno + 1);
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if (!empty)
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{
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printf(" %06X:", startpc);
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}
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else
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{
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printf(" ");
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}
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for (i = 0; i < l; i++)
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{
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printf("%02X ", outbytes[i]);
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}
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for (i = l; i < b; i++)
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{
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printf(" ");
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}
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if (empty)
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{
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printf("%s", comment.c_str());
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}
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else
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{
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printf("%-12s %-8s %-10s ", lable.c_str(), opcode.c_str(), operand.c_str());
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if (errorcode > 0)
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{
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printf(":[Error] %s", errStrings[errorcode].c_str());
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}
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else
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{
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printf("%s", comment.c_str());
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}
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}
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if (errorcode > 0)
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{
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SetColor(CL_NORMAL | BG_NORMAL);
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}
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printf("\n");
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}
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void CLASS::clear()
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{
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syntax = SYNTAX_MERLIN;
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lable = "";
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opcode = "";
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opcodelower = "";
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operand = "";
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comment = "";
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operand_expr = "";
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addrtext = "";
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bytect = 0;
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opflags = 0;
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pass0bytect = 0;
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startpc = 0;
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errorcode = 0;
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inbytect = 0;
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outbytect = 0;
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outbytes.clear();
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addressmode = 0;
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expr_value = 0;
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flags = 0;
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outbytes.clear();
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}
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void CLASS::set(std::string line)
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{
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int state = 0;
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int l = line.length();
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int i = 0;
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char c,delim;
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clear();
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//printf("line: |%s|\n", line.c_str());
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while (i < l)
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{
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c = line[i++];
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//printf("state: %d\n",state);
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switch (state)
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{
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case 0: // start of line state
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if ((c == ';') || (c == '*'))
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{
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comment += c;
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state = 7;
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}
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else if (c > ' ')
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{
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lable += c;
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state = 1;
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}
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else
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{
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state = 2;
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};
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break;
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case 1: // read in entire lable until whitespace
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if (c > ' ')
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{
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lable += c;
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}
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else
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{
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state = 2;
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}
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break;
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case 2: // read whitespace between label and opcode
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if (c == ';')
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{
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comment += c;
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state = 7;
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}
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else if (c > ' ')
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{
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opcode += c;
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state = 3;
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}
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break;
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case 3:
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if (c > ' ')
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{
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opcode += c;
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}
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else
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{
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state = 4;
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}
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break;
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case 4: // read whitespace between opcode and operand
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if (c == ';')
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{
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comment += c;
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state = 7;
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}
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else if (c > ' ')
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{
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operand += c;
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if (c == '\'')
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{
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state = 8;
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}
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else
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{
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state = 5;
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}
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}
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break;
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case 5:
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if ((c == '\'') || (c=='"'))
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{
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delim=c;
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operand += c;
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state = 8;
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}
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else if (c > ' ')
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{
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operand += c;
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}
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else
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{
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state = 6;
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}
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break;
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case 6:
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if (c > ' ')
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{
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comment += c;
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state = 7;
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}
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break;
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case 7:
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comment += c;
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break;
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case 8:
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if (c == delim)
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{
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operand += c;
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state = 5;
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}
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else
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{
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operand += c;
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}
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break;
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}
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}
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opcodelower = Poco::toLower(opcode);
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}
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#undef CLASS
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#define CLASS TFileProcessor
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CLASS::CLASS()
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{
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}
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CLASS::~CLASS()
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{
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}
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void CLASS::errorOut(uint16_t code)
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{
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printf("error: %d\n", code);
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}
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void CLASS::init(void)
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{
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syntax = SYNTAX_MERLIN;
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}
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void CLASS::complete(void)
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{
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}
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void CLASS::process(void)
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{
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}
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int CLASS::doline(int lineno, std::string line)
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{
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int res = -1;
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return (res);
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}
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int CLASS::processfile(std::string &p)
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{
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//Poco::File fn(p);
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int c;
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int res = -1;
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uint32_t linect;
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bool done, valid;
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std::string p1;
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std::string line, op;
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linect = 0;
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done = false;
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Poco::Path tp(p);
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Poco::Path path = tp.makeAbsolute();
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valid = true;
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p1 = tp.toString();
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Poco::File fn(p1);
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if (!fn.exists())
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{
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fn = Poco::File(p1 + ".s");
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if (!fn.exists())
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{
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fn = Poco::File(p1 + ".S");
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if (!fn.exists())
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{
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fn = Poco::File(p1 + ".mac");
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if (!fn.exists())
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{
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valid = false;
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}
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}
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}
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}
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p1 = fn.path();
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if (valid)
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{
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std::ifstream f(p1);
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if (f.is_open())
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{
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//printf("file is open\n");
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line = "";
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while ((!done) && (f.good()) && (!f.eof()))
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{
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c = f.get();
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if (c == 0x8D) // merlin line ending
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{
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c = 0x0A; // convert to linux
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}
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if (c == 0x8A) // possible merlin line ending
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{
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c = 0x00; // ignore
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}
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c &= 0x7F;
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#if 0
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//printf("%02X ",c&0x7F);
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printf("%c", c);
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#else
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int x;
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switch (c)
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{
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case 0x0D:
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break;
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case 0x09:
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line += " ";
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break;
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case 0x0A:
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linect++;
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x = doline(linect, line);
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if (x < 0)
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{
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done = true;
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}
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line = "";
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break;
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default:
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if ((c >= ' ') && (c < 0x7F))
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{
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line += c;
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}
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else
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{
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//printf("garbage %08X\n",c);
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}
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break;
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}
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#endif
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}
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if ( (f.eof()))
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{
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res = 0;
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}
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}
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}
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else
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{
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printf("file %s does not exist\n", p.c_str());
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}
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//printf("\n\nfile read result: %d\n", res);
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return (res);
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}
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#undef CLASS
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#define CLASS T65816Asm
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CLASS::CLASS()
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{
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lines.clear();
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}
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#define OPHANDLER(ACB) std::bind(ACB, this, std::placeholders::_1, std::placeholders::_2)
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CLASS::~CLASS()
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{
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}
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void CLASS::pushopcode(std::string op, uint8_t opcode, uint16_t flags, TOpCallback cb)
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{
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TSymbol sym;
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sym.name = op;
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sym.opcode = opcode;
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sym.namelc = Poco::toLower(op);
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sym.stype = flags;
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sym.value = 0;
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sym.cb = cb;
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std::pair<std::string, TSymbol> p(Poco::toUpper(op), sym);
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opcodes.insert(p);
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}
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TSymbol *CLASS::findSymbol(std::string symname)
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{
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TSymbol *res = NULL;
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auto itr = symbols.find(Poco::toUpper(symname));
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if (itr != symbols.end())
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{
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res = &itr->second;
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return (res);
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}
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return (res);
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}
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TSymbol *CLASS::addSymbol(std::string sym, uint32_t val, bool replace)
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{
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TSymbol *res = NULL;
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TSymbol *fnd = NULL;
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fnd = findSymbol(sym);
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if ((fnd != NULL) && (!replace))
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{
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return (NULL); // it is a duplicate
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}
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if (fnd != NULL)
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{
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fnd->value = val;
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return (fnd);
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}
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TSymbol s;
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s.name = sym;
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s.opcode = 0;
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s.namelc = Poco::toLower(sym);
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s.stype = 0;
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s.value = val;
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s.cb = NULL;
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std::pair<std::string, TSymbol> p(Poco::toUpper(sym), s);
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symbols.insert(p);
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res = findSymbol(sym);
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return (res);
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}
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void CLASS::showSymbolTable(void)
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{
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// Poco::HashTable::Iterator itr;
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for (auto itr = symbols.begin(); itr != symbols.end(); itr++)
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{
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TSymbol ptr = itr->second;
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printf("Sym: %-24s 0x%08X\n", ptr.name.c_str(), ptr.value);
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}
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}
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int CLASS::callOpCode(std::string op, MerlinLine &line)
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{
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int res = -1;
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char c;
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if (op.length() == 4) // check for 4 digit 'L' opcodes
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{
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c = op[3];
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if ((c >= 'a') || (c <= 'z'))
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{
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c = c - 0x20;
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}
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if (c == 'L')
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{
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op = op.substr(0, 3);
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line.flags |= FLAG_LONGADDR;
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}
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}
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//Poco::HashMap<std::string, TSymbol>::ConstIterator ptr;
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auto itr = opcodes.find(Poco::toUpper(op));
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if (itr != opcodes.end())
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{
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TSymbol s = itr->second;
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if (s.cb != NULL)
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{
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if (s.stype & OP_ONEBYTE)
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{
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line.inbytes[0] = (s.opcode);
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line.inbytect = 1;
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}
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res = s.cb(line, s);
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if (res == -1)
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{
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res = -2;
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}
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}
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}
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else
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{
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line.setError(errBadOpcode);
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}
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return (res);
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}
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//imp = <no operand>
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//imm = #$00
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//sr = $00,S
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//dp = $00
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//dpx = $00,X
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//dpy = $00,Y
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//idp = ($00)
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//idx = ($00,X)
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//idy = ($00),Y
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//idl = [$00]
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//idly = [$00],Y
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//isy = ($00,S),Y
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//abs = $0000
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//abx = $0000,X
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//aby = $0000,Y
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//abl = $000000
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//alx = $000000,X
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//ind = ($0000)
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//iax = ($0000,X)
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//ial = [$000000]
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//rel = $0000 (8 bits PC-relative)
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//rell = $0000 (16 bits PC-relative)
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//bm = $00,$00
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typedef struct
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{
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std::string regEx;
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uint16_t addrMode;
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std::string text;
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std::string expression;
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} TaddrMode;
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TaddrMode addrRegEx[] =
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{
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{ "^(?'expr'.+)\\,[s,S]{1}$", syn_s, "e,s"}, // expr,s
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{"^[(]{1}(?'expr'.+)[,]{1}[(S|s)]{1}[)]{1}[,]{1}[(Y|y)]{1}$", syn_sy, "(e,s),y"}, // (expr,s),y
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{"^#{1}(?'shift'[<,>,^,|]?)(.+)$", syn_imm, "immediate"}, //#expr,#^expr,#|expr,#<expr,#>expr
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{"^[(]{1}(?'expr'.+)[,]{1}[x,X]{1}\\)$", syn_diix, "(e,x)"}, // (expr,x)
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{"^[(]{1}(?'expr'.+)[\\)]{1}[\\,][(Y|y]{1}$", syn_diiy, "(e),y"}, //(expr),y
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{"^[(]{1}(?'expr'.+)[\\)]{1}$", syn_di, "(e)"}, // (expr)
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{"^\\[{1}(?'expr'.+)\\]{1}[,]{1}[(Y|y)]{1}$", syn_iyl, "[e],x"}, // [expr],y
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{"^\\[(?'expr'.+)\\]$", syn_dil, "[e]"}, // [expr]
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{"^(?'expr'.+)[,]{1}[(X|x)]{1}$", syn_absx, "e,x"}, // expr,x
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{"^(?'expr'.+)[,]{1}[(Y|y)]{1}$", syn_absy, "e,y"}, // expr,y
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{"^(?'expr'.+)[,]{1}(?'expr2'.+)$", syn_bm, "block"}, // block move expr,expr1
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{"^(?'expr'.+)$", syn_abs, "absolute"}, // expr (MUST BE LAST)
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{"", 0, ""}
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};
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// opcodes that are only 65C02 (27) - also in 65816
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// 0x01 = 6502
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// 0x02 = 65C02
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// 0x03 = 65816
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uint8_t opCodeCompatibility[256] = {
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0x00,0x00,0x02,0x02,0x01,0x00,0x00,0x02,0x00,0x00,0x00,0x02,0x01,0x00,0x00,0x02,
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0x00,0x00,0x01,0x02,0x01,0x00,0x00,0x02,0x00,0x00,0x01,0x02,0x01,0x00,0x00,0x02,
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0x00,0x00,0x02,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,
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0x00,0x00,0x01,0x02,0x01,0x00,0x00,0x02,0x00,0x00,0x01,0x02,0x01,0x00,0x00,0x02,
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0x00,0x00,0x02,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,
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0x00,0x00,0x01,0x02,0x02,0x00,0x00,0x02,0x00,0x00,0x01,0x02,0x02,0x00,0x00,0x02,
|
|
0x00,0x00,0x02,0x02,0x01,0x00,0x00,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,
|
|
0x00,0x00,0x01,0x02,0x01,0x00,0x00,0x02,0x00,0x00,0x01,0x02,0x01,0x00,0x00,0x02,
|
|
0x01,0x00,0x02,0x02,0x00,0x00,0x00,0x02,0x00,0x01,0x00,0x02,0x00,0x00,0x00,0x02,
|
|
0x00,0x00,0x01,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,0x01,0x00,0x01,0x02,
|
|
0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,
|
|
0x00,0x00,0x01,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,
|
|
0x00,0x00,0x02,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,
|
|
0x00,0x00,0x01,0x02,0x02,0x00,0x00,0x02,0x00,0x00,0x01,0x02,0x02,0x00,0x00,0x02,
|
|
0x00,0x00,0x02,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x02,
|
|
0x00,0x00,0x01,0x02,0x02,0x00,0x00,0x02,0x00,0x00,0x01,0x02,0x02,0x00,0x00,0x02
|
|
};
|
|
|
|
void CLASS::init(void)
|
|
{
|
|
TFileProcessor::init();
|
|
lines.clear();
|
|
|
|
insertOpcodes();
|
|
|
|
}
|
|
|
|
void CLASS::initpass(void)
|
|
{
|
|
casesen = true;
|
|
relocatable = false;
|
|
listing = true;
|
|
|
|
origin = 0;
|
|
currentpc = 0;
|
|
cpumode = MODE_65816;
|
|
mx = 0x00;
|
|
currentsym = NULL;
|
|
totalbytes = 0;
|
|
lineno = 0;
|
|
passcomplete = false;
|
|
}
|
|
|
|
void CLASS::complete(void)
|
|
{
|
|
printf("=== Assembly Complete: %d bytes\n", totalbytes);
|
|
|
|
if (listing)
|
|
{
|
|
showSymbolTable();
|
|
}
|
|
}
|
|
|
|
int CLASS::evaluate(std::string expr, int64_t &value)
|
|
{
|
|
int res = -1;
|
|
int64_t result = 0;
|
|
|
|
if (expr.length() > 0)
|
|
{
|
|
|
|
TEvaluator eval(*this);
|
|
|
|
res = eval.evaluate(expr, result);
|
|
//printf("res=%d %08lX\n",res,result);
|
|
if (res == 0)
|
|
{
|
|
value = result;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
value = 0;
|
|
res = 0;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
int CLASS::getAddrMode(MerlinLine &line)
|
|
{
|
|
int res = -1;
|
|
uint16_t mode = syn_none;
|
|
int idx, x;
|
|
std::string s, oper;
|
|
std::vector<std::string> groups;
|
|
|
|
oper = line.operand;
|
|
|
|
if ((line.opcode.length() == 0) || (line.operand.length() == 0))
|
|
{
|
|
return (syn_implied);
|
|
}
|
|
|
|
idx = 0;
|
|
while (mode == syn_none)
|
|
{
|
|
s = addrRegEx[idx].regEx;
|
|
if (s == "")
|
|
{
|
|
mode = syn_err;
|
|
}
|
|
else
|
|
{
|
|
RegularExpression regex(s, 0, true);
|
|
groups.clear();
|
|
x = 0;
|
|
try
|
|
{
|
|
x = regex.split(oper, 0, groups, 0);
|
|
}
|
|
catch (...)
|
|
{
|
|
x = 0;
|
|
}
|
|
if (x > 0)
|
|
{
|
|
mode = addrRegEx[idx].addrMode;
|
|
line.addrtext = addrRegEx[idx].text;
|
|
//cout << "mode: " << line.addrtext << endl;
|
|
for (uint32_t i = 0; i < groups.size(); i++)
|
|
{
|
|
s = groups[i];
|
|
if ((s != "^") && (s != "<") && (s != ">") && (s != "|"))
|
|
{
|
|
line.operand_expr = s;
|
|
//printf("line expression=|%s|\n", s.c_str());
|
|
}
|
|
else
|
|
{
|
|
// SGQ need to set a flag for a shift and process it after eval
|
|
}
|
|
}
|
|
}
|
|
}
|
|
idx++;
|
|
}
|
|
|
|
if (mode == syn_none)
|
|
{
|
|
mode = syn_err;
|
|
}
|
|
res = mode;
|
|
//printf("syn_mode=%d\n", mode);
|
|
return (res);
|
|
}
|
|
|
|
int CLASS::parseOperand(MerlinLine &line)
|
|
{
|
|
|
|
int res = -1;
|
|
|
|
line.operand_expr = "";
|
|
int m = getAddrMode(line);
|
|
if (m >= 0)
|
|
{
|
|
res = m;
|
|
}
|
|
else
|
|
{
|
|
//errorOut(errBadAddressMode);
|
|
}
|
|
return (res);
|
|
}
|
|
|
|
void CLASS::process(void)
|
|
{
|
|
uint32_t l;
|
|
int x;
|
|
char c;
|
|
std::string op, operand;
|
|
//uint32_t operand_eval;
|
|
//uint16_t addrmode;
|
|
|
|
MerlinLine *line;
|
|
pass = 0;
|
|
while (pass < 2)
|
|
{
|
|
initpass();
|
|
|
|
l = lines.size();
|
|
while ((lineno < l) && (!passcomplete))
|
|
{
|
|
line = &lines[lineno];
|
|
|
|
//printf("lineno: %d %d |%s|\n",lineno,l,line->operand.c_str());
|
|
|
|
op = Poco::toLower(line->opcode);
|
|
operand = Poco::toLower(line->operand);
|
|
line->startpc = currentpc;
|
|
line->bytect = 0;
|
|
|
|
if ((line->lable != "") && (pass == 0))
|
|
{
|
|
c = line->lable[0];
|
|
switch (c)
|
|
{
|
|
case ']':
|
|
break;
|
|
case ':':
|
|
break;
|
|
default:
|
|
addSymbol(line->lable, currentpc, false);
|
|
break;
|
|
}
|
|
}
|
|
x = parseOperand(*line);
|
|
if (x >= 0)
|
|
{
|
|
line->addressmode = x;
|
|
}
|
|
int64_t value = -1;
|
|
x=-1;
|
|
x = evaluate(line->operand_expr, value);
|
|
if (x == 0)
|
|
{
|
|
value &= 0xFFFFFFFF;
|
|
//printf("OPERAND VALUE=%08X\n",value);
|
|
line->expr_value = value;
|
|
}
|
|
else
|
|
{
|
|
line->expr_value = 0xFFFFFFFF;
|
|
}
|
|
|
|
x = 0;
|
|
if (op.length() > 0)
|
|
{
|
|
x = callOpCode(op, *line);
|
|
}
|
|
if (x > 0)
|
|
{
|
|
line->bytect = x;
|
|
currentpc += x;
|
|
totalbytes += x;
|
|
}
|
|
if (pass == 0)
|
|
{
|
|
line->pass0bytect = line->bytect;
|
|
}
|
|
|
|
|
|
if (pass == 1)
|
|
{
|
|
if ((line->pass0bytect != line->bytect) && (line->errorcode == 0))
|
|
{
|
|
line->setError(errBadByteCount);
|
|
}
|
|
|
|
bool skip = false;
|
|
if (op == "lst")
|
|
{
|
|
if ((operand == "") || (operand == "on"))
|
|
{
|
|
listing = true;
|
|
}
|
|
else
|
|
{
|
|
skip = true;
|
|
listing = false;
|
|
}
|
|
}
|
|
if ((!skip) && (listing) && (pass == 1))
|
|
{
|
|
line->print(lineno);
|
|
}
|
|
}
|
|
lineno++;
|
|
}
|
|
pass++;
|
|
}
|
|
|
|
}
|
|
|
|
int CLASS::doline(int lineno, std::string line)
|
|
{
|
|
int res = 0;
|
|
std::string op;
|
|
|
|
MerlinLine l(line);
|
|
|
|
op = Poco::toLower(l.opcode);
|
|
if (op == "merlin")
|
|
{
|
|
syntax = SYNTAX_MERLIN;
|
|
}
|
|
else if (op == "orca")
|
|
{
|
|
syntax = SYNTAX_ORCA;
|
|
}
|
|
l.syntax = syntax;
|
|
lines.push_back(l);
|
|
|
|
if ((op == "use") || (op == "put"))
|
|
{
|
|
//printf("processing % s\n",l.operand.c_str());
|
|
processfile(l.operand);
|
|
}
|
|
|
|
return (res);
|
|
}
|
|
|
|
#undef CLASS
|
|
|
|
#define CLASS T65816Link
|
|
|
|
CLASS::CLASS()
|
|
{
|
|
}
|
|
|
|
CLASS::~CLASS()
|
|
{
|
|
}
|
|
|
|
void CLASS::init(void)
|
|
{
|
|
TFileProcessor::init();
|
|
}
|
|
|
|
void CLASS::process(void)
|
|
{
|
|
|
|
}
|
|
void CLASS::complete(void)
|
|
{
|
|
}
|
|
|
|
int CLASS::doline(int lineno, std::string line)
|
|
{
|
|
int res = 0;
|
|
|
|
return (res);
|
|
}
|
|
|
|
#undef CLASS
|