123 lines
3.8 KiB
JavaScript
123 lines
3.8 KiB
JavaScript
let cpu = new CPU_8SA1();
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GenerateMicrocode(Instructions,cpu);
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cpu.RAM[0] = is_LDSPP_i.Bytecode;
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cpu.RAM[1] = 0xCF;
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cpu.RAM[2] = is_LDAB_i.Bytecode;
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cpu.RAM[3] = 0x0100;
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cpu.RAM[4] = is_PHAB.Bytecode;
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cpu.RAM[5] = is_JSR_i.Bytecode;
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cpu.RAM[6] = 0x00D0;
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let v_printloop = 0xd9;
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let v_rollover = 0xe8;
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let v_return = 0xf0;
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let v_displayh = 0xd0;
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let v_displayl = 0x0;
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cpu.RAM[0xD0] = is_PLAB.Bytecode;
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cpu.RAM[0xD1] = is_PLCD.Bytecode;
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cpu.RAM[0xD2] = is_PHAB.Bytecode;
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cpu.RAM[0xD3] = is_LDA_i.Bytecode;
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cpu.RAM[0xD4] = v_displayh;
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cpu.RAM[0xD5] = is_PHA.Bytecode;
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cpu.RAM[0xD6] = is_LDAB_i.Bytecode;
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cpu.RAM[0xD7] = v_displayl;
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cpu.RAM[0xD8] = is_PHAB.Bytecode;
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cpu.RAM[0xD9] = is_LDAB_cda.Bytecode; // printloop
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cpu.RAM[0xDA] = is_CMP.Bytecode;
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cpu.RAM[0xDB] = is_BEQ_i.Bytecode;
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cpu.RAM[0xDC] = v_return;
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cpu.RAM[0xDD] = is_STAL_spin.Bytecode;
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cpu.RAM[0xDE] = is_ADD_gpci.Bytecode
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cpu.RAM[0xDF] = 1;
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cpu.RAM[0xE0] = is_BCS_i.Bytecode;
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cpu.RAM[0xE1] = v_rollover;
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cpu.RAM[0xE2] = is_PLAB.Bytecode;
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cpu.RAM[0xE3] = is_ADD_gpai.Bytecode;
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cpu.RAM[0xE4] = 1;
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cpu.RAM[0xE5] = is_PHAB.Bytecode;
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cpu.RAM[0xE6] = is_JMP_i.Bytecode;
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cpu.RAM[0xE7] = v_printloop;
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cpu.RAM[0xE8] = is_ADD_gpdi.Bytecode; // rollover
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cpu.RAM[0xE9] = 1;
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cpu.RAM[0xEA] = is_PLAB.Bytecode;
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cpu.RAM[0xEB] = is_ADD_gpbi.Bytecode;
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cpu.RAM[0xEC] = 1;
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cpu.RAM[0xED] = is_PHAB.Bytecode;
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cpu.RAM[0xEE] = is_JMP_i.Bytecode;
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cpu.RAM[0xEF] = v_printloop;
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cpu.RAM[0xF0] = is_PLAB.Bytecode;
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cpu.RAM[0xF1] = is_PLA.Bytecode; // return
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cpu.RAM[0xF2] = is_RTS_paged.Bytecode;
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stringToRAM("Welcome to the MatCat 8SA1 Computer Simulator!\n\nThis is a full hardware simulation of the computer to allow for easy development testing. It is currently a heavy work in progress as it is very early alpha, so check back often for new features!\n\n\nThis demo can be seen in the examples folder on the git page at: \nhttps://mygit.space/MatCat.OpenSource/8SA1Sim",cpu.RAM,0x100);
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//stringToRAM("Blackbeard420 is a Butt Fuckers",cpu.RAM,0x100);
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updateHTML();
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let btn_clk = document.getElementById("btn_clk");
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let btn_stopclk = document.getElementById("btn_stopclk");
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let btn_runtil = document.getElementById("btn_runtil");
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let brkpt = document.getElementById("addrbrk");
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let clkinterval = document.getElementById("clkinterval");
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let clkcycles = document.getElementById("clkcycles");
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ramlines = document.getElementById("ramlines");
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let btn_rst = document.getElementById("btn_rst");
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let clk_counter = document.getElementById("clk_counter");
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let clk_count = 0;
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btn_clk.addEventListener('mousedown', function(evt) {
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cpu.CLOCK(true);
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clk_count++;
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clk_counter.innerText = clk_count;
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});
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btn_clk.addEventListener('mouseup', function(evt) {
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cpu.CLOCK(false);
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});
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btn_runtil.addEventListener('click', function(evt) {
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let addr = parseInt("0x" + brkpt.value);
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let cpi = parseInt(clkcycles.value);
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console.log(`Running ${cpi} cycles per interval`);
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btn_stopclk.disabled = false;
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RunUntilBreak(addr,cpi);
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});
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btn_stopclk.addEventListener('click', function(evt) {
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btn_stopclk.disabled = true;
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clearInterval(intval);
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});
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btn_rst.addEventListener('click', function(evt) {
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btn_stopclk.disabled = true;
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clearInterval(intval);
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cpu.PC = 0;
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cpu.MCC = 0xf;
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cpu.IR = 0;
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cpu.IR2 = 0;
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cpu.DATABUS = 0;
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cpu.ADDRBUS = 0;
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cpu.MC_Controls = 0;
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cpu.ALUSUM = 0;
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cpu.RR = 0;
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cpu.GPA = 0;
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cpu.GPB = 0;
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cpu.GPC = 0;
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cpu.GPD = 0;
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cpu.SR = 0;
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cpu.SP = BITMASK_16;
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cpu.SPP = BITMASK_8;
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clk_count = 0;
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clk_counter.innerText = clk_count;
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for (let a = 0xd00000; a < 0xe00000; a++) {
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cpu.RAM[a] = 0;
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}
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});
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window.requestAnimationFrame(drawCPUInfo); |