81 lines
3.1 KiB
Plaintext
Executable File
81 lines
3.1 KiB
Plaintext
Executable File
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Patch name: BIOS Int 15 Func D8 (EISA CMOS)
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Author: Dirk Thierbach
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Date: 4/30/2003
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Status: new
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Detailed description:
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Patch was created with:
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cvs diff -u
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Apply patch to what version:
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cvs checked out on DATE, release version VER
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Instructions:
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To patch, go to main bochs directory.
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Type "patch -p0 < THIS_PATCH_FILE".
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----------------------------------------------------------------------
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--- rombios.c.ORIG 2003-04-29 23:31:20.000000000 +0200
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+++ rombios.c 2003-04-30 00:11:48.000000000 +0200
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@@ -3799,6 +3799,60 @@
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#endif
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break;
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+ case 0xd8: /* EISA configuration */
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+ /* Ralf's interrupt list http://www-2.cs.cmu.edu/~ralf/files.html
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+ * gives a few more details about this interrupt. I haven't been
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+ * able to find an in-depth description, but for example
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+ * http://docsrv.caldera.com/cgi-bin/man/man?eisa+D4
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+ * http://www.rcnp.osaka-u.ac.jp/unix/DOCUMENTATION/HTML/AA-Q0R6C-TET1_html/TOC.html
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+ * give a few hints, though only in the context of writing unix device
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+ * drivers.
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+ *
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+ * For now, we just indicate empty slots. Shouldn't be a big difference
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+ * from leaving it unimplemented, but who knows...
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+ */
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+ switch (regs.u.r8.al) {
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+ case 0x00: /* Read slot configuration information */
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+ case 0x80: /* Read slot configuration information, 32bit CS */
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+ BX_INFO ("int15: func=%04x slot=%02x, returning empty slot error\n",
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+ (unsigned) regs.u.r16.ax, (unsigned) regs.u.r8.cl);
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+ SET_CF();
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+ regs.u.r8.ah = 0x83; /* empty slot */
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+ break;
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+ case 0x01: /* Read function configuration information */
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+ case 0x81: /* Read function configuration information, 32bit CS */
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+ BX_INFO ("int15: func=%04x slot=%02x func=%02x, returning empty slot error\n",
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+ (unsigned) regs.u.r16.ax, (unsigned) regs.u.r8.cl,
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+ (unsigned) regs.u.r8.ch);
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+ SET_CF();
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+ regs.u.r8.ah = 0x83; /* empty slot */
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+ break;
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+ case 0x02: /* Clear nonvolatile memory (EISA CMOS) */
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+ case 0x82: /* Clear nonvolatile memory (EISA CMOS), 32bit CS */
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+ BX_INFO ("int15: func=%04x rev=%04x, returning success\n",
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+ (unsigned) regs.u.r16.ax, (unsigned) regs.u.r16.bx);
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+ CLEAR_CF();
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+ regs.u.r8.ah = 0x00; /* success */
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+ break;
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+ case 0x03: /* Write nonvolatile memory */
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+ case 0x83: /* Write nonvolatile memory, 32bit CS */
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+ BX_INFO ("int15: func=%04x len=%04x, returning CMOS full error\n",
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+ (unsigned) regs.u.r16.ax, (unsigned) regs.u.r16.cx);
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+ SET_CF();
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+ regs.u.r8.ah = 0x85; /* EISA CMOS full */
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+ break;
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+ case 0x04: /* Read physical slot */
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+ case 0x84: /* Read physical slot, 32bit CS */
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+ BX_INFO ("int15: func=%04x slot=%02x, returning empty slot error\n",
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+ (unsigned) regs.u.r16.ax, (unsigned) regs.u.r8.cl);
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+ SET_CF();
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+ regs.u.r8.ah = 0x83; /* empty slot */
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+ break;
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+ default:
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+ goto int15_unimplemented;
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+ }
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+ break;
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+
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case 0xe8:
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switch(regs.u.r8.al)
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{
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