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udpstream: text panel (labelled hex) and an instrumented chip restore
The panel now draws labelled hex text instead of 16 white boxes: a 5x7 glyph table for 0-9/A-F plus the letters the labels need, built at runtime because this toolchain never runs .cinit. Rows: CSR0, CSR1, TMD1, RMD1, MCNT, OK and REST (CSR0 after handing the chip back), on a 32px pitch. The restore now matches the firmware's own init: CSR0 = 0x7F41 (INIT | INEA | all status bits write-1-to-clear) instead of a plain INIT, then poll IDON, then 0x0042 (STRT | INEA), plus a retry if TXON does not come up and an update of the driver's CSR0 shadow cell 0x23CC50. Note: on the first post-fix run the network still did not recover, so the restore remains a convenience at best; results are read from the panel.
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@@ -4200,3 +4200,28 @@ observable on the panel (or in memory if the machine is still up). The
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CSR1/CSR2 from `0x23E7A0`, `INIT`, poll `IDON`, `STRT|INEA`), but on this run it
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did not bring the network back; the unit needed a power cycle. Fixing that is
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open work, not a blocker for the result above.
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### 61.4 The panel is now text, and the restore is instrumented
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Reading 16 white boxes off a photograph of the screen is error-prone, so the
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payload now draws **labelled hex text** instead:
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```
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CSR0 7B3 TMD1 8300 MCNT 001C REST 0042
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CSR1 7B3 RMD1 0300 OK YES
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```
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A 5x7 glyph table (`0-9`, `A-F`, and the letters the labels need) is built **at
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runtime** — this toolchain never runs `.cinit`, so a statically initialised table
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would arrive as zeros, the same reason `harness/c-hello` builds its font in code.
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Glyph pixels are 8 px wide (the VRAM write granularity) and 3 px tall, on a
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32-pixel row pitch.
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`REST` is new: the CSR0 read back **after** handing the chip to the OS, so a
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failed restore is visible rather than inferred.
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Note on verification: the panel coordinates and the 2048-byte VRAM stride come
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from the real unit (they are the ones that displayed correctly there). MAME's
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frame dump does **not** reproduce the panel — the OS repaints the screen
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continuously there, and the real unit's VRAM layout differs slightly — so the
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panel is verified on the machine, not from an emulator screenshot.
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Binary file not shown.
Binary file not shown.
+162
-17
@@ -121,12 +121,126 @@ unsigned int reg;
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return v;
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}
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/* ---- 5x7 text -------------------------------------------------------
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* Glyphs are built at runtime: this toolchain never runs .cinit, so a
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* statically initialised table would arrive as zeros (same reason
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* harness/c-hello builds its font in code).
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*/
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static unsigned char glyph[36][7];
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static unsigned char lab_csr0[5], lab_csr1[5], lab_tmd1[5], lab_rmd1[5];
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static unsigned char lab_mcnt[5], lab_rest[5], lab_ok[3], lab_yes[4], lab_no[3];
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static unsigned int gi(ch)
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unsigned int ch;
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{
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if (ch >= '0' && ch <= '9') {
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return ch - '0';
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}
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return 10 + (ch - 'A');
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}
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static void fset(i, r0, r1, r2, r3, r4, r5, r6)
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unsigned int i, r0, r1, r2, r3, r4, r5, r6;
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{
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glyph[i][0] = r0; glyph[i][1] = r1; glyph[i][2] = r2; glyph[i][3] = r3;
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glyph[i][4] = r4; glyph[i][5] = r5; glyph[i][6] = r6;
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}
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static void build_font()
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{
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fset(0, 0x0E,0x11,0x13,0x15,0x19,0x11,0x0E); /* 0 */
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fset(1, 0x04,0x0C,0x04,0x04,0x04,0x04,0x0E); /* 1 */
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fset(2, 0x0E,0x11,0x01,0x02,0x04,0x08,0x1F); /* 2 */
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fset(3, 0x1F,0x02,0x04,0x02,0x01,0x11,0x0E); /* 3 */
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fset(4, 0x02,0x06,0x0A,0x12,0x1F,0x02,0x02); /* 4 */
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fset(5, 0x1F,0x10,0x1E,0x01,0x01,0x11,0x0E); /* 5 */
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fset(6, 0x06,0x08,0x10,0x1E,0x11,0x11,0x0E); /* 6 */
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fset(7, 0x1F,0x01,0x02,0x04,0x08,0x08,0x08); /* 7 */
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fset(8, 0x0E,0x11,0x11,0x0E,0x11,0x11,0x0E); /* 8 */
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fset(9, 0x0E,0x11,0x11,0x0F,0x01,0x02,0x0C); /* 9 */
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fset(gi('A'), 0x0E,0x11,0x11,0x1F,0x11,0x11,0x11);
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fset(gi('B'), 0x1E,0x11,0x11,0x1E,0x11,0x11,0x1E);
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fset(gi('C'), 0x0E,0x11,0x10,0x10,0x10,0x11,0x0E);
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fset(gi('D'), 0x1E,0x11,0x11,0x11,0x11,0x11,0x1E);
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fset(gi('E'), 0x1F,0x10,0x10,0x1E,0x10,0x10,0x1F);
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fset(gi('F'), 0x1F,0x10,0x10,0x1E,0x10,0x10,0x10);
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fset(gi('K'), 0x11,0x12,0x14,0x18,0x14,0x12,0x11);
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fset(gi('M'), 0x11,0x1B,0x15,0x15,0x11,0x11,0x11);
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fset(gi('N'), 0x11,0x19,0x19,0x15,0x13,0x13,0x11);
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fset(gi('O'), 0x0E,0x11,0x11,0x11,0x11,0x11,0x0E);
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fset(gi('R'), 0x1E,0x11,0x11,0x1E,0x14,0x12,0x11);
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fset(gi('S'), 0x0F,0x10,0x10,0x0E,0x01,0x01,0x1E);
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fset(gi('T'), 0x1F,0x04,0x04,0x04,0x04,0x04,0x04);
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fset(gi('Y'), 0x11,0x11,0x0A,0x04,0x04,0x04,0x04);
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}
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static void put4(a, c0, c1, c2, c3)
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unsigned char *a;
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unsigned int c0, c1, c2, c3;
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{
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a[0] = c0; a[1] = c1; a[2] = c2; a[3] = c3; a[4] = 0;
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}
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static void draw_glyph(x, y, ch)
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unsigned int x, y, ch;
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{
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unsigned int r, c, row, idx;
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idx = gi(ch);
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for (r = 0; r < 7; r++) {
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row = glyph[idx][r];
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for (c = 0; c < 5; c++) {
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if (row & (1 << (4 - c))) {
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rect(x + c * 8, y + r * 3, 8, 3, 0xFF);
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}
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}
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}
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}
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static void draw_text(x, y, s)
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unsigned int x, y;
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unsigned char *s;
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{
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while (*s) {
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if (*s != ' ') {
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draw_glyph(x, y, *s);
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}
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x = x + 48;
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s = s + 1;
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}
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}
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static void hex4(x, y, v)
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unsigned int x, y, v;
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{
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unsigned int d, nib;
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for (d = 0; d < 4; d++) {
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nib = (v >> ((3 - d) * 4)) & 0xF;
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if (nib < 10) {
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draw_glyph(x + d * 48, y, '0' + nib);
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} else {
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draw_glyph(x + d * 48, y, 'A' + nib - 10);
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}
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}
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}
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int main()
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{
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unsigned int i, r, idle, ok, rxmd1, txmd1, mcnt;
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unsigned int s0[2];
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cell(0x000, 1);
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build_font();
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put4(lab_csr0, 'C', 'S', 'R', '0');
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put4(lab_csr1, 'C', 'S', 'R', '1');
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put4(lab_tmd1, 'T', 'M', 'D', '1');
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put4(lab_rmd1, 'R', 'M', 'D', '1');
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put4(lab_mcnt, 'M', 'C', 'N', 'T');
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put4(lab_rest, 'R', 'E', 'S', 'T');
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lab_ok[0] = 'O'; lab_ok[1] = 'K'; lab_ok[2] = 0;
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lab_yes[0] = 'Y'; lab_yes[1] = 'E'; lab_yes[2] = 'S'; lab_yes[3] = 0;
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lab_no[0] = 'N'; lab_no[1] = 'O'; lab_no[2] = 0;
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dot(0);
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csr_w(0, CSR0_STOP);
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@@ -239,11 +353,17 @@ int main()
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cell(0x240, txmd1);
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cell(0x1A0, ok);
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bits16(120, 670, s0[0]);
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bits16(120, 700, s0[1]);
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bits16(120, 730, txmd1);
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bits16(120, 760, rxmd1);
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bits16(120, 790, mcnt);
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draw_text(104, 654, lab_csr0); hex4(312, 654, s0[0]);
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draw_text(104, 686, lab_csr1); hex4(312, 686, s0[1]);
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draw_text(104, 718, lab_tmd1); hex4(312, 718, txmd1);
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draw_text(104, 750, lab_rmd1); hex4(312, 750, rxmd1);
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draw_text(104, 782, lab_mcnt); hex4(312, 782, mcnt);
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draw_text(104, 814, lab_ok);
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if (ok) {
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draw_text(312, 804, lab_yes);
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} else {
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draw_text(312, 804, lab_no);
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}
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if (ok) {
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rect(120, 850, 24, 24, 0xFF);
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}
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@@ -251,24 +371,49 @@ int main()
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rect(160, 850, 24, 24, 0xFF);
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}
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/* best effort: give the chip back to the OS */
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/* Give the chip back to the OS.
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*
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* The firmware's own init (io5800_5900_init, 0x3FDDCBE0) writes
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* CSR0 = 0x7F41 = INIT | INEA | all status bits set (they are
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* write-1-to-clear), then its caller polls IDON and writes
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* 0x0042 = STRT | INEA. Match that exactly -- a plain INIT (0x0001)
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* leaves INEA clear and the status bits latched, which is why the
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* network did not come back on the first attempt.
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*/
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{
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unsigned int osblk;
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osblk = *(unsigned int *)0x23E7A0;
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unsigned int osblk, tries, csr0res;
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osblk = *(unsigned int *)0x23E7A0; /* init block, BYTE address */
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csr0res = 0;
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if (osblk != 0) {
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csr_w(0, CSR0_STOP);
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csr_w(1, osblk & 0xFFFF);
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csr_w(2, (osblk >> 16) & 0xFF);
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csr_w(3, 0);
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csr_w(0, CSR0_INIT);
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for (idle = 0; idle < 10000; idle++) {
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r = csr_r(0);
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if (r & CSR0_IDON) {
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for (tries = 0; tries < 2; tries++) {
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csr_w(0, CSR0_STOP);
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for (idle = 0; idle < 200; idle++) {
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}
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csr_w(1, osblk & 0xFFFF);
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csr_w(2, (osblk >> 16) & 0xFF);
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csr_w(3, 0);
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csr_w(0, 0x7F41); /* INIT | INEA, clear status */
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for (idle = 0; idle < 20000; idle++) {
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r = csr_r(0);
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if (r & CSR0_IDON) {
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break;
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}
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}
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csr_w(0, 0x0042); /* STRT | INEA */
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for (idle = 0; idle < 2000; idle++) {
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}
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csr0res = csr_r(0);
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if (csr0res & 0x0010) { /* TXON: the chip is running */
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break;
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}
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}
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csr_w(0, 0x0042);
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/* keep the driver's command shadow consistent with the chip */
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*(unsigned int *)0x23CC50 = 0x0042;
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}
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cell(0x260, csr0res); /* CSR0 after the restore */
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cell(0x280, osblk); /* init block we handed back */
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draw_text(104, 846, lab_rest); hex4(312, 846, csr0res);
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}
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return 0;
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}
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@@ -121,12 +121,126 @@ unsigned int reg;
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return v;
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}
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/* ---- 5x7 text -------------------------------------------------------
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* Glyphs are built at runtime: this toolchain never runs .cinit, so a
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* statically initialised table would arrive as zeros (same reason
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* harness/c-hello builds its font in code).
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*/
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static unsigned char glyph[36][7];
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static unsigned char lab_csr0[5], lab_csr1[5], lab_tmd1[5], lab_rmd1[5];
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static unsigned char lab_mcnt[5], lab_rest[5], lab_ok[3], lab_yes[4], lab_no[3];
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static unsigned int gi(ch)
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unsigned int ch;
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{
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if (ch >= '0' && ch <= '9') {
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return ch - '0';
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}
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return 10 + (ch - 'A');
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}
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static void fset(i, r0, r1, r2, r3, r4, r5, r6)
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unsigned int i, r0, r1, r2, r3, r4, r5, r6;
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{
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glyph[i][0] = r0; glyph[i][1] = r1; glyph[i][2] = r2; glyph[i][3] = r3;
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glyph[i][4] = r4; glyph[i][5] = r5; glyph[i][6] = r6;
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}
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static void build_font()
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{
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fset(0, 0x0E,0x11,0x13,0x15,0x19,0x11,0x0E); /* 0 */
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fset(1, 0x04,0x0C,0x04,0x04,0x04,0x04,0x0E); /* 1 */
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fset(2, 0x0E,0x11,0x01,0x02,0x04,0x08,0x1F); /* 2 */
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fset(3, 0x1F,0x02,0x04,0x02,0x01,0x11,0x0E); /* 3 */
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fset(4, 0x02,0x06,0x0A,0x12,0x1F,0x02,0x02); /* 4 */
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fset(5, 0x1F,0x10,0x1E,0x01,0x01,0x11,0x0E); /* 5 */
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fset(6, 0x06,0x08,0x10,0x1E,0x11,0x11,0x0E); /* 6 */
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fset(7, 0x1F,0x01,0x02,0x04,0x08,0x08,0x08); /* 7 */
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fset(8, 0x0E,0x11,0x11,0x0E,0x11,0x11,0x0E); /* 8 */
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fset(9, 0x0E,0x11,0x11,0x0F,0x01,0x02,0x0C); /* 9 */
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fset(gi('A'), 0x0E,0x11,0x11,0x1F,0x11,0x11,0x11);
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fset(gi('B'), 0x1E,0x11,0x11,0x1E,0x11,0x11,0x1E);
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fset(gi('C'), 0x0E,0x11,0x10,0x10,0x10,0x11,0x0E);
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fset(gi('D'), 0x1E,0x11,0x11,0x11,0x11,0x11,0x1E);
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fset(gi('E'), 0x1F,0x10,0x10,0x1E,0x10,0x10,0x1F);
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fset(gi('F'), 0x1F,0x10,0x10,0x1E,0x10,0x10,0x10);
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fset(gi('K'), 0x11,0x12,0x14,0x18,0x14,0x12,0x11);
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fset(gi('M'), 0x11,0x1B,0x15,0x15,0x11,0x11,0x11);
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fset(gi('N'), 0x11,0x19,0x19,0x15,0x13,0x13,0x11);
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fset(gi('O'), 0x0E,0x11,0x11,0x11,0x11,0x11,0x0E);
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fset(gi('R'), 0x1E,0x11,0x11,0x1E,0x14,0x12,0x11);
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fset(gi('S'), 0x0F,0x10,0x10,0x0E,0x01,0x01,0x1E);
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fset(gi('T'), 0x1F,0x04,0x04,0x04,0x04,0x04,0x04);
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fset(gi('Y'), 0x11,0x11,0x0A,0x04,0x04,0x04,0x04);
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}
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static void put4(a, c0, c1, c2, c3)
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unsigned char *a;
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unsigned int c0, c1, c2, c3;
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{
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a[0] = c0; a[1] = c1; a[2] = c2; a[3] = c3; a[4] = 0;
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}
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static void draw_glyph(x, y, ch)
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unsigned int x, y, ch;
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{
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unsigned int r, c, row, idx;
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idx = gi(ch);
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for (r = 0; r < 7; r++) {
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row = glyph[idx][r];
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for (c = 0; c < 5; c++) {
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if (row & (1 << (4 - c))) {
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rect(x + c * 8, y + r * 3, 8, 3, 0xFF);
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}
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}
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}
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}
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static void draw_text(x, y, s)
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unsigned int x, y;
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unsigned char *s;
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{
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while (*s) {
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if (*s != ' ') {
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draw_glyph(x, y, *s);
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}
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x = x + 48;
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s = s + 1;
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}
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}
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static void hex4(x, y, v)
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unsigned int x, y, v;
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{
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unsigned int d, nib;
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for (d = 0; d < 4; d++) {
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nib = (v >> ((3 - d) * 4)) & 0xF;
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if (nib < 10) {
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draw_glyph(x + d * 48, y, '0' + nib);
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} else {
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draw_glyph(x + d * 48, y, 'A' + nib - 10);
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}
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}
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
unsigned int i, r, idle, ok, rxmd1, txmd1, mcnt;
|
||||
unsigned int s0[2];
|
||||
|
||||
cell(0x000, 1);
|
||||
build_font();
|
||||
put4(lab_csr0, 'C', 'S', 'R', '0');
|
||||
put4(lab_csr1, 'C', 'S', 'R', '1');
|
||||
put4(lab_tmd1, 'T', 'M', 'D', '1');
|
||||
put4(lab_rmd1, 'R', 'M', 'D', '1');
|
||||
put4(lab_mcnt, 'M', 'C', 'N', 'T');
|
||||
put4(lab_rest, 'R', 'E', 'S', 'T');
|
||||
lab_ok[0] = 'O'; lab_ok[1] = 'K'; lab_ok[2] = 0;
|
||||
lab_yes[0] = 'Y'; lab_yes[1] = 'E'; lab_yes[2] = 'S'; lab_yes[3] = 0;
|
||||
lab_no[0] = 'N'; lab_no[1] = 'O'; lab_no[2] = 0;
|
||||
dot(0);
|
||||
csr_w(0, CSR0_STOP);
|
||||
|
||||
@@ -239,11 +353,17 @@ int main()
|
||||
cell(0x240, txmd1);
|
||||
cell(0x1A0, ok);
|
||||
|
||||
bits16(120, 670, s0[0]);
|
||||
bits16(120, 700, s0[1]);
|
||||
bits16(120, 730, txmd1);
|
||||
bits16(120, 760, rxmd1);
|
||||
bits16(120, 790, mcnt);
|
||||
draw_text(104, 654, lab_csr0); hex4(312, 654, s0[0]);
|
||||
draw_text(104, 686, lab_csr1); hex4(312, 686, s0[1]);
|
||||
draw_text(104, 718, lab_tmd1); hex4(312, 718, txmd1);
|
||||
draw_text(104, 750, lab_rmd1); hex4(312, 750, rxmd1);
|
||||
draw_text(104, 782, lab_mcnt); hex4(312, 782, mcnt);
|
||||
draw_text(104, 814, lab_ok);
|
||||
if (ok) {
|
||||
draw_text(312, 804, lab_yes);
|
||||
} else {
|
||||
draw_text(312, 804, lab_no);
|
||||
}
|
||||
if (ok) {
|
||||
rect(120, 850, 24, 24, 0xFF);
|
||||
}
|
||||
@@ -251,24 +371,49 @@ int main()
|
||||
rect(160, 850, 24, 24, 0xFF);
|
||||
}
|
||||
|
||||
/* best effort: give the chip back to the OS */
|
||||
/* Give the chip back to the OS.
|
||||
*
|
||||
* The firmware's own init (io5800_5900_init, 0x3FDDCBE0) writes
|
||||
* CSR0 = 0x7F41 = INIT | INEA | all status bits set (they are
|
||||
* write-1-to-clear), then its caller polls IDON and writes
|
||||
* 0x0042 = STRT | INEA. Match that exactly -- a plain INIT (0x0001)
|
||||
* leaves INEA clear and the status bits latched, which is why the
|
||||
* network did not come back on the first attempt.
|
||||
*/
|
||||
{
|
||||
unsigned int osblk;
|
||||
osblk = *(unsigned int *)0x23E7A0;
|
||||
unsigned int osblk, tries, csr0res;
|
||||
|
||||
osblk = *(unsigned int *)0x23E7A0; /* init block, BYTE address */
|
||||
csr0res = 0;
|
||||
if (osblk != 0) {
|
||||
csr_w(0, CSR0_STOP);
|
||||
csr_w(1, osblk & 0xFFFF);
|
||||
csr_w(2, (osblk >> 16) & 0xFF);
|
||||
csr_w(3, 0);
|
||||
csr_w(0, CSR0_INIT);
|
||||
for (idle = 0; idle < 10000; idle++) {
|
||||
r = csr_r(0);
|
||||
if (r & CSR0_IDON) {
|
||||
for (tries = 0; tries < 2; tries++) {
|
||||
csr_w(0, CSR0_STOP);
|
||||
for (idle = 0; idle < 200; idle++) {
|
||||
}
|
||||
csr_w(1, osblk & 0xFFFF);
|
||||
csr_w(2, (osblk >> 16) & 0xFF);
|
||||
csr_w(3, 0);
|
||||
csr_w(0, 0x7F41); /* INIT | INEA, clear status */
|
||||
for (idle = 0; idle < 20000; idle++) {
|
||||
r = csr_r(0);
|
||||
if (r & CSR0_IDON) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
csr_w(0, 0x0042); /* STRT | INEA */
|
||||
for (idle = 0; idle < 2000; idle++) {
|
||||
}
|
||||
csr0res = csr_r(0);
|
||||
if (csr0res & 0x0010) { /* TXON: the chip is running */
|
||||
break;
|
||||
}
|
||||
}
|
||||
csr_w(0, 0x0042);
|
||||
/* keep the driver's command shadow consistent with the chip */
|
||||
*(unsigned int *)0x23CC50 = 0x0042;
|
||||
}
|
||||
cell(0x260, csr0res); /* CSR0 after the restore */
|
||||
cell(0x280, osblk); /* init block we handed back */
|
||||
draw_text(104, 846, lab_rest); hex4(312, 846, csr0res);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
Reference in new issue
Block a user