diff options
| author | spv <aquaticvegetable@gmail.com> | 2022-04-20 14:10:27 -0400 |
|---|---|---|
| committer | spv <aquaticvegetable@gmail.com> | 2022-04-20 14:10:27 -0400 |
| commit | 7caa231e0b0fa607080586725fbbc9628a1cc031 (patch) | |
| tree | e22a643aefbc73c703b90f2454c0f75374696399 /js/str.js | |
hello and welcome back to hell
Diffstat (limited to 'js/str.js')
| -rw-r--r-- | js/str.js | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/js/str.js b/js/str.js new file mode 100644 index 0000000..4f171fc --- /dev/null +++ b/js/str.js @@ -0,0 +1,105 @@ +
+
+function prim_dump_u32(buf) {
+ s = "";
+
+ for (var i = 0; i < buf.length; i += 4) {
+ tmp = [];
+
+ tmp.push(buf[i + 0]);
+ tmp.push(buf[i + 1]);
+ tmp.push(buf[i + 2]);
+ tmp.push(buf[i + 3]);
+
+ s += "0x" + pad_left((0x422200 + i).toString(16), "0", 8);
+ s += ": ";
+ s += "0x" + pad_left(u8x4_to_u32(tmp).toString(16), "0", 8);
+ if (u8x4_to_u32(tmp) >= 0x1800000 && u8x4_to_u32(tmp) < 0x1900000) {
+ s += " -> 0x" + pad_left(read_u32(u8x4_to_u32(tmp)).toString(16), "0", 8);
+ s += "\n";
+ val = read_u32(u8x4_to_u32(tmp));
+ if (val >= 0x1800000 && val < 0x1900000) {
+ buf = read_buf(val, 0x100);
+ s += (hexdump(buf, 8, 2, val, 8, "0x"));
+ }
+ }
+ s += "\n";
+ }
+
+ return s;
+}
+
+function pad_left(s, c, n) {
+ s_ = s;
+
+ if (s_.length < n) {
+ s_ = c.repeat(n - s_.length) + s_;
+ }
+
+ return s_;
+}
+
+function str_to_uint8_buf(s) {
+ buf = new Uint8Array(s.length);
+
+ for (i = 0; i < s.length; i++) {
+ buf[i] = s.charCodeAt(i);
+ }
+
+ return buf;
+}
+
+/*
+ * HOLY UGLY BATMAN!
+ */
+function hexdump(buf, cols, col_split, base, pad_base, base_prefix) {
+ s = "";
+ if (buf.constructor != Uint8Array) {
+ buf = str_to_uint8_buf(buf);
+ }
+
+ for (i = 0; i < buf.length; i += (cols * col_split)) {
+ cur_base = base + i;
+ s += base_prefix + pad_left(cur_base.toString(16), "0", pad_base) + ": ";
+ for (j = i; j < (i + (cols * col_split)); j += col_split) {
+ for (k = j; k < (j + col_split); k++) {
+ val = buf[k];
+ try {
+ s += pad_left(val.toString(16), "0", 2);
+ } catch (e) {
+ s += " ";
+ }
+ }
+ s += " ";
+ }
+
+ for (j = i; j < (i + (cols * col_split)); j++) {
+ val = buf[j];
+
+ if (val < 0x20 || val >= 0x80) {
+ val = 0x2e; // period
+ }
+
+ chr = String.fromCharCode(val);
+ s += chr;
+ }
+
+ s += "\n";
+ }
+
+ return s;
+}
+
+/*
+ * HEX SHIT
+ */
+function prim_hexdump(buf) {
+ s = "";
+
+ for (i = 0; i < buf.length; i++) {
+ val = buf[i];
+ s += pad_left(val.toString(16), "0", 2);
+ }
+
+ return s;
+}
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