70 lines
2.2 KiB
JavaScript
70 lines
2.2 KiB
JavaScript
/*
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Fabrix - An annotated version of the original JSLinux which is Copyright (c) 2011 Fabrice Bellard
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Clipboard Device
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*/
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function clipboard_device(Ng, Zf, rh, lh, sh) {
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Ng.register_ioport_read(Zf, 16, 4, this.ioport_readl.bind(this));
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Ng.register_ioport_write(Zf, 16, 4, this.ioport_writel.bind(this));
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Ng.register_ioport_read(Zf + 8, 1, 1, this.ioport_readb.bind(this));
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Ng.register_ioport_write(Zf + 8, 1, 1, this.ioport_writeb.bind(this));
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this.cur_pos = 0;
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this.doc_str = "";
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this.read_func = rh;
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this.write_func = lh;
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this.get_boot_time = sh;
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}
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clipboard_device.prototype.ioport_writeb = function(mem8_loc, x) {
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this.doc_str += String.fromCharCode(x);
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};
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clipboard_device.prototype.ioport_readb = function(mem8_loc) {
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var c, na, x;
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na = this.doc_str;
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if (this.cur_pos < na.length) {
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x = na.charCodeAt(this.cur_pos) & 0xff;
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} else {
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x = 0;
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}
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this.cur_pos++;
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return x;
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};
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clipboard_device.prototype.ioport_writel = function(mem8_loc, x) {
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var na;
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mem8_loc = (mem8_loc >> 2) & 3;
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switch (mem8_loc) {
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case 0:
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this.doc_str = this.doc_str.substr(0, x >>> 0);
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break;
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case 1:
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return this.cur_pos = x >>> 0;
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case 2:
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na = String.fromCharCode(x & 0xff) + String.fromCharCode((x >> 8) & 0xff) + String.fromCharCode((x >> 16) & 0xff) + String.fromCharCode((x >> 24) & 0xff);
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this.doc_str += na;
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break;
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case 3:
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this.write_func(this.doc_str);
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}
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};
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clipboard_device.prototype.ioport_readl = function(mem8_loc) {
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var x;
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mem8_loc = (mem8_loc >> 2) & 3;
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switch (mem8_loc) {
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case 0:
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this.doc_str = this.read_func();
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return this.doc_str.length >> 0;
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case 1:
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return this.cur_pos >> 0;
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case 2:
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x = this.ioport_readb(0);
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x |= this.ioport_readb(0) << 8;
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x |= this.ioport_readb(0) << 16;
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x |= this.ioport_readb(0) << 24;
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return x;
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case 3:
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if (this.get_boot_time)
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return this.get_boot_time() >> 0;
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else
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return 0;
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}
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};
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