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/* |
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* Copyright (C) 2004-2005 Anders Gavare. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: dev_wdc.c,v 1.28 2005/04/01 16:44:34 debug Exp $ |
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* |
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* Standard IDE controller. |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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|
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#include "console.h" |
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#include "cop0.h" |
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#include "cpu.h" |
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#include "devices.h" |
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#include "diskimage.h" |
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#include "machine.h" |
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#include "memory.h" |
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#include "misc.h" |
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|
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#include "wdcreg.h" |
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|
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|
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extern int single_step; |
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|
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#define WDC_TICK_SHIFT 14 |
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#define WDC_INBUF_SIZE (512*257) |
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|
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/* INT_DELAY=2 to be safe, 1 is faster but maybe buggy. */ |
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#define INT_DELAY 1 |
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|
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/* #define debug fatal */ |
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/* #define DATA_DEBUG */ |
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|
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struct wdc_data { |
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int irq_nr; |
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int base_drive; |
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|
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int delayed_interrupt; |
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|
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unsigned char identify_struct[512]; |
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|
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unsigned char inbuf[WDC_INBUF_SIZE]; |
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int inbuf_head; |
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int inbuf_tail; |
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|
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int write_in_progress; |
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int write_count; |
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int64_t write_offset; |
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|
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int error; |
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int precomp; |
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int seccnt; |
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int sector; |
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int cyl_lo; |
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int cyl_hi; |
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int sectorsize; |
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int lba; |
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int drive; |
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int head; |
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int cur_command; |
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}; |
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|
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|
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/* |
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* dev_wdc_tick(): |
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*/ |
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void dev_wdc_tick(struct cpu *cpu, void *extra) |
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{ |
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struct wdc_data *d = extra; |
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|
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if (d->delayed_interrupt) { |
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d->delayed_interrupt --; |
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|
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if (d->delayed_interrupt == 0) |
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cpu_interrupt(cpu, d->irq_nr); |
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} |
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} |
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|
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|
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/* |
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* wdc_addtoinbuf(): |
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* |
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* Write to the inbuf at its head, read at its tail. |
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*/ |
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static void wdc_addtoinbuf(struct wdc_data *d, int c) |
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{ |
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d->inbuf[d->inbuf_head] = c; |
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|
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d->inbuf_head = (d->inbuf_head + 1) % WDC_INBUF_SIZE; |
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if (d->inbuf_head == d->inbuf_tail) |
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fatal("WARNING! wdc inbuf overrun\n"); |
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} |
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|
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|
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/* |
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* wdc_get_inbuf(): |
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* |
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* Read from the tail of inbuf. |
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*/ |
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static uint64_t wdc_get_inbuf(struct wdc_data *d) |
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{ |
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int c = d->inbuf[d->inbuf_tail]; |
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|
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if (d->inbuf_head == d->inbuf_tail) { |
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fatal("WARNING! someone is reading too much from the " |
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"wdc inbuf!\n"); |
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return -1; |
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} |
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|
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d->inbuf_tail = (d->inbuf_tail + 1) % WDC_INBUF_SIZE; |
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return c; |
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} |
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|
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|
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/* |
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* wdc_initialize_identify_struct(d): |
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*/ |
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static void wdc_initialize_identify_struct(struct cpu *cpu, struct wdc_data *d) |
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{ |
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uint64_t total_size, cyls; |
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|
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total_size = diskimage_getsize(cpu->machine, d->drive + d->base_drive); |
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|
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memset(d->identify_struct, 0, sizeof(d->identify_struct)); |
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|
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cyls = total_size / (63 * 16 * 512); |
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if (cyls * 63*16*512 < total_size) |
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cyls ++; |
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|
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/* Offsets are in 16-bit WORDS! High byte, then low. */ |
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|
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/* 0: general flags */ |
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d->identify_struct[2 * 0 + 0] = 0; |
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d->identify_struct[2 * 0 + 1] = 1 << 6; |
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|
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/* 1: nr of cylinders */ |
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d->identify_struct[2 * 1 + 0] = (cyls >> 8); |
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d->identify_struct[2 * 1 + 1] = cyls & 255; |
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|
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/* 3: nr of heads */ |
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d->identify_struct[2 * 3 + 0] = 0; |
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d->identify_struct[2 * 3 + 1] = 16; |
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|
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/* 6: sectors per track */ |
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d->identify_struct[2 * 6 + 0] = 0; |
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d->identify_struct[2 * 6 + 1] = 63; |
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|
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/* 10-19: Serial number */ |
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memcpy(&d->identify_struct[2 * 10], "S/N 1234-5678 ", 20); |
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|
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/* 23-26: Firmware version */ |
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memcpy(&d->identify_struct[2 * 23], "VER 1.0 ", 8); |
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|
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/* 27-46: Model number */ |
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memcpy(&d->identify_struct[2 * 27], |
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"Fake GXemul disk ", 40); |
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/* TODO: Use the diskimage's filename instead? */ |
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|
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/* 47: max sectors per multitransfer */ |
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d->identify_struct[2 * 47 + 0] = 0x80; |
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d->identify_struct[2 * 47 + 1] = 1; /* 1 or 16? */ |
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|
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/* 57-58: current capacity in sectors */ |
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d->identify_struct[2 * 57 + 0] = ((total_size / 512) >> 24) % 255; |
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d->identify_struct[2 * 57 + 1] = ((total_size / 512) >> 16) % 255; |
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d->identify_struct[2 * 58 + 0] = ((total_size / 512) >> 8) % 255; |
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d->identify_struct[2 * 58 + 1] = (total_size / 512) & 255; |
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|
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/* 60-61: total nr of addresable sectors */ |
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d->identify_struct[2 * 60 + 0] = ((total_size / 512) >> 24) % 255; |
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d->identify_struct[2 * 60 + 1] = ((total_size / 512) >> 16) % 255; |
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d->identify_struct[2 * 61 + 0] = ((total_size / 512) >> 8) % 255; |
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d->identify_struct[2 * 61 + 1] = (total_size / 512) & 255; |
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|
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} |
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|
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|
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/* |
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* dev_wdc_altstatus_access(): |
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*/ |
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int dev_wdc_altstatus_access(struct cpu *cpu, struct memory *mem, |
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uint64_t relative_addr, unsigned char *data, size_t len, |
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int writeflag, void *extra) |
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{ |
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struct wdc_data *d = extra; |
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uint64_t idata = 0, odata = 0; |
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|
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idata = memory_readmax64(cpu, data, len); |
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|
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/* Same as the normal status byte? */ |
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odata = 0; |
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if (diskimage_exist(cpu->machine, d->drive + d->base_drive)) |
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odata |= WDCS_DRDY; |
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if (d->inbuf_head != d->inbuf_tail) |
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odata |= WDCS_DRQ; |
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|
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if (writeflag==MEM_READ) |
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debug("[ wdc: read from ALTSTATUS: 0x%02x ]\n", |
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(int)relative_addr, odata); |
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else |
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debug("[ wdc: write to ALT. CTRL: 0x%02x ]\n", |
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(int)relative_addr, idata); |
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|
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if (writeflag == MEM_READ) |
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memory_writemax64(cpu, data, len, odata); |
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|
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return 1; |
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} |
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|
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|
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/* |
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* dev_wdc_access(): |
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*/ |
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int dev_wdc_access(struct cpu *cpu, struct memory *mem, |
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uint64_t relative_addr, unsigned char *data, size_t len, |
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int writeflag, void *extra) |
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{ |
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struct wdc_data *d = extra; |
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uint64_t idata = 0, odata = 0; |
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int i; |
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|
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idata = memory_readmax64(cpu, data, len); |
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|
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switch (relative_addr) { |
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|
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case wd_data: /* 0: data */ |
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if (writeflag==MEM_READ) { |
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odata = 0; |
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#if 0 |
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if (len == 4) { |
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odata += (wdc_get_inbuf(d) << 24); |
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odata += (wdc_get_inbuf(d) << 16); |
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} |
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if (len >= 2) |
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odata += (wdc_get_inbuf(d) << 8); |
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odata += wdc_get_inbuf(d); |
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#else |
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odata += wdc_get_inbuf(d); |
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if (len >= 2) |
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odata += (wdc_get_inbuf(d) << 8); |
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if (len == 4) { |
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odata += (wdc_get_inbuf(d) << 16); |
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odata += (wdc_get_inbuf(d) << 24); |
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} |
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#endif |
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|
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#ifdef DATA_DEBUG |
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debug("[ wdc: read from DATA: 0x%04x ]\n", odata); |
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#endif |
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|
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|
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|
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if (d->inbuf_tail != d->inbuf_head) |
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d->delayed_interrupt = INT_DELAY; |
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|
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} else { |
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int inbuf_len; |
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#ifdef DATA_DEBUG |
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debug("[ wdc: write to DATA (len=%i): 0x%08lx ]\n", |
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(int)len, (long)idata); |
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#endif |
| 288 |
if (!d->write_in_progress) { |
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fatal("[ wdc: write to DATA, but not " |
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"expecting any? (len=%i): 0x%08lx ]\n", |
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(int)len, (long)idata); |
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} |
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|
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switch (len) { |
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case 4: wdc_addtoinbuf(d, idata & 0xff); |
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wdc_addtoinbuf(d, (idata >> 8) & 0xff); |
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wdc_addtoinbuf(d, (idata >> 16) & 0xff); |
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wdc_addtoinbuf(d, (idata >> 24) & 0xff); |
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break; |
| 300 |
case 2: wdc_addtoinbuf(d, idata & 0xff); |
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wdc_addtoinbuf(d, (idata >> 8) & 0xff); |
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break; |
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case 1: wdc_addtoinbuf(d, idata); break; |
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default:fatal("wdc: unimplemented write len %i\n", len); |
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exit(1); |
| 306 |
} |
| 307 |
|
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inbuf_len = d->inbuf_head - d->inbuf_tail; |
| 309 |
while (inbuf_len < 0) |
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inbuf_len += WDC_INBUF_SIZE; |
| 311 |
|
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#if 0 |
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if ((inbuf_len % (512 * d->write_count)) == 0) { |
| 314 |
#endif |
| 315 |
if ((inbuf_len % 512) == 0) { |
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int count = 1; /* d->write_count; */ |
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unsigned char *buf = malloc(count * 512); |
| 318 |
if (buf == NULL) { |
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fprintf(stderr, "out of memory\n"); |
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exit(1); |
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} |
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|
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for (i=0; i<512 * count; i++) |
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buf[i] = wdc_get_inbuf(d); |
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|
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diskimage_access(cpu->machine, |
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d->drive + d->base_drive, 1, |
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d->write_offset, buf, 512 * count); |
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free(buf); |
| 330 |
|
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d->write_count --; |
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d->write_offset += 512; |
| 333 |
|
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d->delayed_interrupt = INT_DELAY; |
| 335 |
|
| 336 |
if (d->write_count == 0) |
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d->write_in_progress = 0; |
| 338 |
} |
| 339 |
} |
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break; |
| 341 |
|
| 342 |
case wd_error: /* 1: error (r), precomp (w) */ |
| 343 |
if (writeflag==MEM_READ) { |
| 344 |
odata = d->error; |
| 345 |
debug("[ wdc: read from ERROR: 0x%02x ]\n", odata); |
| 346 |
/* TODO: is the error value cleared on read? */ |
| 347 |
d->error = 0; |
| 348 |
} else { |
| 349 |
d->precomp = idata; |
| 350 |
debug("[ wdc: write to PRECOMP: 0x%02x ]\n", idata); |
| 351 |
} |
| 352 |
break; |
| 353 |
|
| 354 |
case wd_seccnt: /* 2: sector count */ |
| 355 |
if (writeflag==MEM_READ) { |
| 356 |
odata = d->seccnt; |
| 357 |
debug("[ wdc: read from SECCNT: 0x%02x ]\n", odata); |
| 358 |
} else { |
| 359 |
d->seccnt = idata; |
| 360 |
debug("[ wdc: write to SECCNT: 0x%02x ]\n", idata); |
| 361 |
} |
| 362 |
break; |
| 363 |
|
| 364 |
case wd_sector: /* 3: first sector */ |
| 365 |
if (writeflag==MEM_READ) { |
| 366 |
odata = d->sector; |
| 367 |
debug("[ wdc: read from SECTOR: 0x%02x ]\n", odata); |
| 368 |
} else { |
| 369 |
d->sector = idata; |
| 370 |
debug("[ wdc: write to SECTOR: 0x%02x ]\n", idata); |
| 371 |
} |
| 372 |
break; |
| 373 |
|
| 374 |
case wd_cyl_lo: /* 4: cylinder low */ |
| 375 |
if (writeflag==MEM_READ) { |
| 376 |
odata = d->cyl_lo; |
| 377 |
debug("[ wdc: read from CYL_LO: 0x%02x ]\n", odata); |
| 378 |
} else { |
| 379 |
d->cyl_lo = idata; |
| 380 |
debug("[ wdc: write to CYL_LO: 0x%02x ]\n", idata); |
| 381 |
} |
| 382 |
break; |
| 383 |
|
| 384 |
case wd_cyl_hi: /* 5: cylinder low */ |
| 385 |
if (writeflag==MEM_READ) { |
| 386 |
odata = d->cyl_hi; |
| 387 |
debug("[ wdc: read from CYL_HI: 0x%02x ]\n", odata); |
| 388 |
} else { |
| 389 |
d->cyl_hi = idata; |
| 390 |
debug("[ wdc: write to CYL_HI: 0x%02x ]\n", idata); |
| 391 |
} |
| 392 |
break; |
| 393 |
|
| 394 |
case wd_sdh: /* 6: sectorsize/drive/head */ |
| 395 |
if (writeflag==MEM_READ) { |
| 396 |
odata = (d->sectorsize << 6) + (d->lba << 5) + |
| 397 |
(d->drive << 4) + (d->head); |
| 398 |
debug("[ wdc: read from SDH: 0x%02x (sectorsize %i," |
| 399 |
" lba=%i, drive %i, head %i) ]\n", (int)odata, |
| 400 |
d->sectorsize, d->lba, d->drive, d->head); |
| 401 |
} else { |
| 402 |
d->sectorsize = (idata >> 6) & 3; |
| 403 |
d->lba = (idata >> 5) & 1; |
| 404 |
d->drive = (idata >> 4) & 1; |
| 405 |
d->head = idata & 0xf; |
| 406 |
debug("[ wdc: write to SDH: 0x%02x (sectorsize %i," |
| 407 |
" lba=%i, drive %i, head %i) ]\n", (int)idata, |
| 408 |
d->sectorsize, d->lba, d->drive, d->head); |
| 409 |
} |
| 410 |
break; |
| 411 |
|
| 412 |
case wd_command: /* 7: command or status */ |
| 413 |
if (writeflag==MEM_READ) { |
| 414 |
odata = 0; |
| 415 |
if (diskimage_exist(cpu->machine, |
| 416 |
d->drive + d->base_drive)) |
| 417 |
odata |= WDCS_DRDY; |
| 418 |
if (d->inbuf_head != d->inbuf_tail) |
| 419 |
odata |= WDCS_DRQ; |
| 420 |
if (d->write_in_progress) |
| 421 |
odata |= WDCS_DRQ; |
| 422 |
if (d->error) |
| 423 |
odata |= WDCS_ERR; |
| 424 |
|
| 425 |
/* TODO: Is this correct behaviour? */ |
| 426 |
if (!diskimage_exist(cpu->machine, |
| 427 |
d->drive + d->base_drive)) |
| 428 |
odata = 0xff; |
| 429 |
|
| 430 |
#if 1 |
| 431 |
debug("[ wdc: read from STATUS: 0x%02x ]\n", odata); |
| 432 |
#endif |
| 433 |
|
| 434 |
cpu_interrupt_ack(cpu, d->irq_nr); |
| 435 |
d->delayed_interrupt = 0; |
| 436 |
} else { |
| 437 |
debug("[ wdc: write to COMMAND: 0x%02x ]\n", idata); |
| 438 |
d->cur_command = idata; |
| 439 |
|
| 440 |
/* TODO: Is this correct behaviour? */ |
| 441 |
if (!diskimage_exist(cpu->machine, |
| 442 |
d->drive + d->base_drive)) |
| 443 |
break; |
| 444 |
|
| 445 |
/* Handle the command: */ |
| 446 |
switch (d->cur_command) { |
| 447 |
case WDCC_READ: |
| 448 |
debug("[ wdc: READ from drive %i, head %i, " |
| 449 |
"cylinder %i, sector %i, nsecs %i ]\n", |
| 450 |
d->drive, d->head, d->cyl_hi*256+d->cyl_lo, |
| 451 |
d->sector, d->seccnt); |
| 452 |
/* TODO: HAHA! This should be removed |
| 453 |
quickly */ |
| 454 |
{ |
| 455 |
unsigned char buf[512*256]; |
| 456 |
int cyl = d->cyl_hi * 256+ d->cyl_lo; |
| 457 |
int count = d->seccnt? d->seccnt : 256; |
| 458 |
uint64_t offset = 512 * (d->sector - 1 |
| 459 |
+ d->head * 63 + 16*63*cyl); |
| 460 |
|
| 461 |
#if 0 |
| 462 |
/* LBA: */ |
| 463 |
if (d->lba) |
| 464 |
offset = 512 * (((d->head & 0xf) << 24) + (cyl << 8) + d->sector); |
| 465 |
printf("WDC read from offset %lli\n", (long long)offset); |
| 466 |
#endif |
| 467 |
/* single_step = 1; */ |
| 468 |
diskimage_access(cpu->machine, |
| 469 |
d->drive + d->base_drive, 0, |
| 470 |
offset, buf, 512 * count); |
| 471 |
/* TODO: result code */ |
| 472 |
for (i=0; i<512 * count; i++) |
| 473 |
wdc_addtoinbuf(d, buf[i]); |
| 474 |
} |
| 475 |
d->delayed_interrupt = INT_DELAY; |
| 476 |
break; |
| 477 |
case WDCC_WRITE: |
| 478 |
debug("[ wdc: WRITE to drive %i, head %i, " |
| 479 |
"cylinder %i, sector %i, nsecs %i ]\n", |
| 480 |
d->drive, d->head, d->cyl_hi*256+d->cyl_lo, |
| 481 |
d->sector, d->seccnt); |
| 482 |
/* TODO: HAHA! This should be removed |
| 483 |
quickly */ |
| 484 |
{ |
| 485 |
int cyl = d->cyl_hi * 256+ d->cyl_lo; |
| 486 |
int count = d->seccnt? d->seccnt : 256; |
| 487 |
uint64_t offset = 512 * (d->sector - 1 |
| 488 |
+ d->head * 63 + 16*63*cyl); |
| 489 |
|
| 490 |
#if 0 |
| 491 |
/* LBA: */ |
| 492 |
if (d->lba) |
| 493 |
offset = 512 * (((d->head & 0xf) << 24) + (cyl << 8) + d->sector); |
| 494 |
printf("WDC write to offset %lli\n", (long long)offset); |
| 495 |
#endif |
| 496 |
|
| 497 |
d->write_in_progress = 1; |
| 498 |
d->write_count = count; |
| 499 |
d->write_offset = offset; |
| 500 |
|
| 501 |
/* TODO: result code */ |
| 502 |
} |
| 503 |
/* TODO: Really interrupt here? */ |
| 504 |
#if 0 |
| 505 |
d->delayed_interrupt = INT_DELAY; |
| 506 |
#endif |
| 507 |
break; |
| 508 |
|
| 509 |
case WDCC_IDP: /* Initialize drive parameters */ |
| 510 |
debug("[ wdc: IDP drive %i (TODO) ]\n", |
| 511 |
d->drive); |
| 512 |
/* TODO */ |
| 513 |
d->delayed_interrupt = INT_DELAY; |
| 514 |
break; |
| 515 |
case SET_FEATURES: |
| 516 |
fatal("[ wdc: SET_FEATURES drive %i (TODO), " |
| 517 |
"feature 0x%02x ]\n", d->drive, d->precomp); |
| 518 |
/* TODO */ |
| 519 |
switch (d->precomp) { |
| 520 |
case WDSF_SET_MODE: |
| 521 |
fatal("[ wdc: WDSF_SET_MODE drive %i, " |
| 522 |
"pio/dma flags 0x%02x ]\n", |
| 523 |
d->drive, d->seccnt); |
| 524 |
break; |
| 525 |
default: |
| 526 |
d->error |= WDCE_ABRT; |
| 527 |
} |
| 528 |
/* TODO: always interrupt? */ |
| 529 |
d->delayed_interrupt = INT_DELAY; |
| 530 |
break; |
| 531 |
case WDCC_RECAL: |
| 532 |
debug("[ wdc: RECAL drive %i ]\n", d->drive); |
| 533 |
d->delayed_interrupt = INT_DELAY; |
| 534 |
break; |
| 535 |
case WDCC_IDENTIFY: |
| 536 |
debug("[ wdc: IDENTIFY drive %i ]\n", d->drive); |
| 537 |
wdc_initialize_identify_struct(cpu, d); |
| 538 |
/* The IDENTIFY data block is sent out |
| 539 |
in low/high byte order: */ |
| 540 |
for (i=0; i<sizeof(d->identify_struct); i+=2) { |
| 541 |
wdc_addtoinbuf(d, d->identify_struct |
| 542 |
[i+1]); |
| 543 |
wdc_addtoinbuf(d, d->identify_struct |
| 544 |
[i+0]); |
| 545 |
} |
| 546 |
d->delayed_interrupt = INT_DELAY; |
| 547 |
break; |
| 548 |
default: |
| 549 |
fatal("[ wdc: unknown command 0x%02x (" |
| 550 |
"drive %i, head %i, cylinder %i, sector %i," |
| 551 |
" nsecs %i) ]\n", d->cur_command, d->drive, |
| 552 |
d->head, d->cyl_hi*256+d->cyl_lo, |
| 553 |
d->sector, d->seccnt); |
| 554 |
exit(1); |
| 555 |
} |
| 556 |
} |
| 557 |
break; |
| 558 |
|
| 559 |
default: |
| 560 |
if (writeflag==MEM_READ) |
| 561 |
debug("[ wdc: read from 0x%02x ]\n", |
| 562 |
(int)relative_addr); |
| 563 |
else |
| 564 |
debug("[ wdc: write to 0x%02x: 0x%02x ]\n", |
| 565 |
(int)relative_addr, (int)idata); |
| 566 |
} |
| 567 |
|
| 568 |
if (writeflag == MEM_READ) |
| 569 |
memory_writemax64(cpu, data, len, odata); |
| 570 |
|
| 571 |
return 1; |
| 572 |
} |
| 573 |
|
| 574 |
|
| 575 |
/* |
| 576 |
* dev_wdc_init(): |
| 577 |
* |
| 578 |
* base_drive should be 0 for the primary device, and 2 for the secondary. |
| 579 |
*/ |
| 580 |
void dev_wdc_init(struct machine *machine, struct memory *mem, |
| 581 |
uint64_t baseaddr, int irq_nr, int base_drive) |
| 582 |
{ |
| 583 |
struct wdc_data *d; |
| 584 |
uint64_t alt_status_addr; |
| 585 |
|
| 586 |
d = malloc(sizeof(struct wdc_data)); |
| 587 |
if (d == NULL) { |
| 588 |
fprintf(stderr, "out of memory\n"); |
| 589 |
exit(1); |
| 590 |
} |
| 591 |
memset(d, 0, sizeof(struct wdc_data)); |
| 592 |
d->irq_nr = irq_nr; |
| 593 |
d->base_drive = base_drive; |
| 594 |
|
| 595 |
alt_status_addr = baseaddr + 0x206; |
| 596 |
|
| 597 |
/* Special hack for pcic/hpcmips: TODO: Fix */ |
| 598 |
if (baseaddr == 0x14000180) |
| 599 |
alt_status_addr = 0x14000386; |
| 600 |
|
| 601 |
memory_device_register(mem, "wdc_altstatus", alt_status_addr, 2, |
| 602 |
dev_wdc_altstatus_access, d, MEM_DEFAULT, NULL); |
| 603 |
memory_device_register(mem, "wdc", baseaddr, DEV_WDC_LENGTH, |
| 604 |
dev_wdc_access, d, MEM_DEFAULT, NULL); |
| 605 |
|
| 606 |
machine_add_tickfunction(machine, dev_wdc_tick, |
| 607 |
d, WDC_TICK_SHIFT); |
| 608 |
} |
| 609 |
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