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/* |
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* Copyright (C) 2006-2007 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_sh4.c,v 1.32 2007/03/16 18:47:26 debug Exp $ |
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* |
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* SH4 processor specific memory mapped registers (0xf0000000 - 0xffffffff). |
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* |
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* TODO: Lots and lots of stuff. |
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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 "cpu.h" |
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#include "device.h" |
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#include "devices.h" |
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#include "interrupt.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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#include "timer.h" |
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|
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#include "sh4_bscreg.h" |
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#include "sh4_cache.h" |
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#include "sh4_dmacreg.h" |
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#include "sh4_exception.h" |
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#include "sh4_intcreg.h" |
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#include "sh4_mmu.h" |
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#include "sh4_rtcreg.h" |
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#include "sh4_scifreg.h" |
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#include "sh4_tmureg.h" |
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|
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|
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#define SH4_REG_BASE 0xff000000 |
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#define SH4_TICK_SHIFT 14 |
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#define N_SH4_TIMERS 3 |
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|
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/* General-purpose I/O stuff: */ |
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#define SH4_PCTRA 0xff80002c |
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#define SH4_PDTRA 0xff800030 |
| 67 |
#define SH4_PCTRB 0xff800040 |
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#define SH4_PDTRB 0xff800044 |
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#define SH4_GPIOIC 0xff800048 |
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|
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#ifdef UNSTABLE_DEVEL |
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#define SH4_DEGUG |
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/* #define debug fatal */ |
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#endif |
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|
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struct sh4_data { |
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/* SCIF (Serial controller): */ |
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uint16_t scif_smr; |
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uint8_t scif_brr; |
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uint16_t scif_scr; |
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uint16_t scif_ssr; |
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uint16_t scif_fcr; |
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int scif_delayed_tx; |
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int scif_console_handle; |
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struct interrupt scif_tx_irq; |
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struct interrupt scif_rx_irq; |
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|
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/* Bus State Controller: */ |
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uint32_t bsc_bcr1; |
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uint16_t bsc_bcr2; |
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uint32_t bsc_wcr1; |
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uint32_t bsc_wcr2; |
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uint32_t bsc_mcr; |
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uint16_t bsc_rtcsr; |
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uint16_t bsc_rtcor; |
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uint16_t bsc_rfcr; |
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|
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/* GPIO: */ |
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uint32_t pctra; /* Port Control Register A */ |
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uint32_t pdtra; /* Port Data Register A */ |
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uint32_t pctrb; /* Port Control Register B */ |
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uint32_t pdtrb; /* Port Data Register B */ |
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|
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/* SD-RAM: */ |
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uint16_t sdmr2; |
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uint16_t sdmr3; |
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|
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/* Timer Management Unit: */ |
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struct timer *sh4_timer; |
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struct interrupt timer_irq[4]; |
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uint32_t tocr; |
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uint32_t tstr; |
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uint32_t tcnt[N_SH4_TIMERS]; |
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uint32_t tcor[N_SH4_TIMERS]; |
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uint32_t tcr[N_SH4_TIMERS]; |
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int timer_interrupts_pending[N_SH4_TIMERS]; |
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double timer_hz[N_SH4_TIMERS]; |
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|
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/* RTC: */ |
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uint32_t rtc_reg[14]; /* Excluding rcr1 and 2 */ |
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uint8_t rtc_rcr1; |
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}; |
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|
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|
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#define SH4_PSEUDO_TIMER_HZ 100.0 |
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|
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|
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/* |
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* sh4_timer_tick(): |
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* |
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* This function is called SH4_PSEUDO_TIMER_HZ times per real-world second. |
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* Its job is to update the SH4 timer counters, and if necessary, increase |
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* the number of pending interrupts. |
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* |
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* Also, RAM Refresh is also faked here. |
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*/ |
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static void sh4_timer_tick(struct timer *t, void *extra) |
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{ |
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struct sh4_data *d = (struct sh4_data *) extra; |
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int i; |
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|
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/* Fake RAM refresh: */ |
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d->bsc_rfcr ++; |
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if (d->bsc_rtcsr & (RTCSR_CMIE | RTCSR_OVIE)) { |
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fatal("sh4: RTCSR_CMIE | RTCSR_OVIE: TODO\n"); |
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/* TODO: Implement refresh interrupts etc. */ |
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exit(1); |
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} |
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|
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/* Timer interrupts: */ |
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for (i=0; i<N_SH4_TIMERS; i++) { |
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int32_t old = d->tcnt[i]; |
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|
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/* printf("tcnt[%i] = %08x tcor[%i] = %08x\n", |
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i, d->tcnt[i], i, d->tcor[i]); */ |
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|
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/* Only update timers that are currently started: */ |
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if (!(d->tstr & (TSTR_STR0 << i))) |
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continue; |
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|
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/* Update the current count: */ |
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d->tcnt[i] -= d->timer_hz[i] / SH4_PSEUDO_TIMER_HZ; |
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|
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/* Has the timer underflowed? */ |
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if ((int32_t)d->tcnt[i] < 0 && old >= 0) { |
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d->tcr[i] |= TCR_UNF; |
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|
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if (d->tcr[i] & TCR_UNIE) |
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d->timer_interrupts_pending[i] ++; |
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|
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/* |
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* Set tcnt[i] to tcor[i]. Note: Since this function |
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* is only called now and then, adding tcor[i] to |
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* tcnt[i] produces more correct values for long |
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* running timers. |
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*/ |
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d->tcnt[i] += d->tcor[i]; |
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|
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/* At least make sure that tcnt is non-negative... */ |
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if ((int32_t)d->tcnt[i] < 0) |
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d->tcnt[i] = 0; |
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} |
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} |
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} |
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|
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|
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static void scif_reassert_interrupts(struct sh4_data *d) |
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{ |
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if (d->scif_scr & SCSCR2_RIE) { |
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if (d->scif_ssr & SCSSR2_DR) |
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INTERRUPT_ASSERT(d->scif_rx_irq); |
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} else { |
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INTERRUPT_DEASSERT(d->scif_rx_irq); |
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} |
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if (d->scif_scr & SCSCR2_TIE) { |
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if (d->scif_ssr & (SCSSR2_TDFE | SCSSR2_TEND)) |
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INTERRUPT_ASSERT(d->scif_tx_irq); |
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} else { |
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INTERRUPT_DEASSERT(d->scif_tx_irq); |
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} |
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} |
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|
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|
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DEVICE_TICK(sh4) |
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{ |
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struct sh4_data *d = (struct sh4_data *) extra; |
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int i; |
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|
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/* Serial controller interrupts: */ |
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/* TODO: Which bits go to which interrupt? */ |
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if (console_charavail(d->scif_console_handle)) |
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d->scif_ssr |= SCSSR2_DR; |
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else |
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d->scif_ssr &= SCSSR2_DR; |
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if (d->scif_delayed_tx) { |
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if (--d->scif_delayed_tx == 0) |
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d->scif_ssr |= SCSSR2_TDFE | SCSSR2_TEND; |
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} |
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|
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scif_reassert_interrupts(d); |
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|
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/* Timer interrupts: */ |
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for (i=0; i<N_SH4_TIMERS; i++) |
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if (d->timer_interrupts_pending[i] > 0) { |
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INTERRUPT_ASSERT(d->timer_irq[i]); |
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d->tcr[i] |= TCR_UNF; |
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} |
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} |
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|
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|
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DEVICE_ACCESS(sh4_itlb_aa) |
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{ |
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uint64_t idata = 0, odata = 0; |
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int e = (relative_addr & SH4_ITLB_E_MASK) >> SH4_ITLB_E_SHIFT; |
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|
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if (writeflag == MEM_WRITE) { |
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int safe_to_invalidate = 0; |
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uint32_t old_hi = cpu->cd.sh.itlb_hi[e]; |
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if ((cpu->cd.sh.itlb_lo[e] & SH4_PTEL_SZ_MASK)==SH4_PTEL_SZ_4K) |
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safe_to_invalidate = 1; |
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|
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idata = memory_readmax64(cpu, data, len); |
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cpu->cd.sh.itlb_hi[e] &= |
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~(SH4_PTEH_VPN_MASK | SH4_PTEH_ASID_MASK); |
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cpu->cd.sh.itlb_hi[e] |= (idata & |
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(SH4_ITLB_AA_VPN_MASK | SH4_ITLB_AA_ASID_MASK)); |
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cpu->cd.sh.itlb_lo[e] &= ~SH4_PTEL_V; |
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if (idata & SH4_ITLB_AA_V) |
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cpu->cd.sh.itlb_lo[e] |= SH4_PTEL_V; |
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|
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/* Invalidate if this ITLB entry previously belonged to the |
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currently running process, or if it was shared: */ |
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if (cpu->cd.sh.ptel & SH4_PTEL_SH || |
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(old_hi & SH4_ITLB_AA_ASID_MASK) == |
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(cpu->cd.sh.pteh & SH4_PTEH_ASID_MASK)) { |
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if (safe_to_invalidate) |
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cpu->invalidate_translation_caches(cpu, |
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old_hi & ~0xfff, INVALIDATE_VADDR); |
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else |
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cpu->invalidate_translation_caches(cpu, |
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0, INVALIDATE_ALL); |
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} |
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} else { |
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odata = cpu->cd.sh.itlb_hi[e] & |
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(SH4_ITLB_AA_VPN_MASK | SH4_ITLB_AA_ASID_MASK); |
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if (cpu->cd.sh.itlb_lo[e] & SH4_PTEL_V) |
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odata |= SH4_ITLB_AA_V; |
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memory_writemax64(cpu, data, len, odata); |
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} |
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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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DEVICE_ACCESS(sh4_itlb_da1) |
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{ |
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uint32_t mask = SH4_PTEL_SH | SH4_PTEL_C | SH4_PTEL_SZ_MASK | |
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SH4_PTEL_PR_MASK | SH4_PTEL_V | 0x1ffffc00; |
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uint64_t idata = 0, odata = 0; |
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int e = (relative_addr & SH4_ITLB_E_MASK) >> SH4_ITLB_E_SHIFT; |
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|
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if (relative_addr & 0x800000) { |
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fatal("sh4_itlb_da1: TODO: da2 area\n"); |
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exit(1); |
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} |
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|
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if (writeflag == MEM_WRITE) { |
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uint32_t old_lo = cpu->cd.sh.itlb_lo[e]; |
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int safe_to_invalidate = 0; |
| 290 |
if ((cpu->cd.sh.itlb_lo[e] & SH4_PTEL_SZ_MASK)==SH4_PTEL_SZ_4K) |
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safe_to_invalidate = 1; |
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|
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idata = memory_readmax64(cpu, data, len); |
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cpu->cd.sh.itlb_lo[e] &= ~mask; |
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cpu->cd.sh.itlb_lo[e] |= (idata & mask); |
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|
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/* Invalidate if this ITLB entry belongs to the |
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currently running process, or if it was shared: */ |
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if (old_lo & SH4_PTEL_SH || |
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(cpu->cd.sh.itlb_hi[e] & SH4_ITLB_AA_ASID_MASK) == |
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(cpu->cd.sh.pteh & SH4_PTEH_ASID_MASK)) { |
| 302 |
if (safe_to_invalidate) |
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cpu->invalidate_translation_caches(cpu, |
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cpu->cd.sh.itlb_hi[e] & ~0xfff, |
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INVALIDATE_VADDR); |
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else |
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cpu->invalidate_translation_caches(cpu, |
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0, INVALIDATE_ALL); |
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} |
| 310 |
} else { |
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odata = cpu->cd.sh.itlb_lo[e] & mask; |
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memory_writemax64(cpu, data, len, odata); |
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} |
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|
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return 1; |
| 316 |
} |
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|
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|
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DEVICE_ACCESS(sh4_utlb_aa) |
| 320 |
{ |
| 321 |
uint64_t idata = 0, odata = 0; |
| 322 |
int i, e = (relative_addr & SH4_UTLB_E_MASK) >> SH4_UTLB_E_SHIFT; |
| 323 |
int a = relative_addr & SH4_UTLB_A; |
| 324 |
|
| 325 |
if (writeflag == MEM_WRITE) { |
| 326 |
int n_hits = 0; |
| 327 |
int safe_to_invalidate = 0; |
| 328 |
uint32_t vaddr_to_invalidate = 0; |
| 329 |
|
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idata = memory_readmax64(cpu, data, len); |
| 331 |
if (a) { |
| 332 |
for (i=-SH_N_ITLB_ENTRIES; i<SH_N_UTLB_ENTRIES; i++) { |
| 333 |
uint32_t lo, hi; |
| 334 |
uint32_t mask = 0xfffff000; |
| 335 |
int sh; |
| 336 |
|
| 337 |
if (i < 0) { |
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lo = cpu->cd.sh.itlb_lo[ |
| 339 |
i + SH_N_ITLB_ENTRIES]; |
| 340 |
hi = cpu->cd.sh.itlb_hi[ |
| 341 |
i + SH_N_ITLB_ENTRIES]; |
| 342 |
} else { |
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lo = cpu->cd.sh.utlb_lo[i]; |
| 344 |
hi = cpu->cd.sh.utlb_hi[i]; |
| 345 |
} |
| 346 |
|
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sh = lo & SH4_PTEL_SH; |
| 348 |
if (!(lo & SH4_PTEL_V)) |
| 349 |
continue; |
| 350 |
|
| 351 |
switch (lo & SH4_PTEL_SZ_MASK) { |
| 352 |
case SH4_PTEL_SZ_1K: mask = 0xfffffc00; break; |
| 353 |
case SH4_PTEL_SZ_64K: mask = 0xffff0000; break; |
| 354 |
case SH4_PTEL_SZ_1M: mask = 0xfff00000; break; |
| 355 |
} |
| 356 |
|
| 357 |
if ((hi & mask) != (idata & mask)) |
| 358 |
continue; |
| 359 |
|
| 360 |
if ((lo & SH4_PTEL_SZ_MASK) == |
| 361 |
SH4_PTEL_SZ_4K) { |
| 362 |
safe_to_invalidate = 1; |
| 363 |
vaddr_to_invalidate = hi & mask; |
| 364 |
} |
| 365 |
|
| 366 |
if (!sh && (hi & SH4_PTEH_ASID_MASK) != |
| 367 |
(cpu->cd.sh.pteh & SH4_PTEH_ASID_MASK)) |
| 368 |
continue; |
| 369 |
|
| 370 |
if (i < 0) { |
| 371 |
cpu->cd.sh.itlb_lo[i] &= ~SH4_PTEL_V; |
| 372 |
if (idata & SH4_UTLB_AA_V) |
| 373 |
cpu->cd.sh.itlb_lo[i] |= |
| 374 |
SH4_PTEL_V; |
| 375 |
} else { |
| 376 |
cpu->cd.sh.utlb_lo[i] &= |
| 377 |
~(SH4_PTEL_D | SH4_PTEL_V); |
| 378 |
if (idata & SH4_UTLB_AA_D) |
| 379 |
cpu->cd.sh.utlb_lo[i] |= |
| 380 |
SH4_PTEL_D; |
| 381 |
if (idata & SH4_UTLB_AA_V) |
| 382 |
cpu->cd.sh.utlb_lo[i] |= |
| 383 |
SH4_PTEL_V; |
| 384 |
} |
| 385 |
|
| 386 |
if (i >= 0) |
| 387 |
n_hits ++; |
| 388 |
} |
| 389 |
|
| 390 |
if (n_hits > 1) |
| 391 |
sh_exception(cpu, |
| 392 |
EXPEVT_RESET_TLB_MULTI_HIT, 0, 0); |
| 393 |
} else { |
| 394 |
if ((cpu->cd.sh.utlb_lo[e] & SH4_PTEL_SZ_MASK) == |
| 395 |
SH4_PTEL_SZ_4K) { |
| 396 |
safe_to_invalidate = 1; |
| 397 |
vaddr_to_invalidate = |
| 398 |
cpu->cd.sh.utlb_hi[e] & ~0xfff; |
| 399 |
} |
| 400 |
|
| 401 |
cpu->cd.sh.utlb_hi[e] &= |
| 402 |
~(SH4_PTEH_VPN_MASK | SH4_PTEH_ASID_MASK); |
| 403 |
cpu->cd.sh.utlb_hi[e] |= (idata & |
| 404 |
(SH4_UTLB_AA_VPN_MASK | SH4_UTLB_AA_ASID_MASK)); |
| 405 |
|
| 406 |
cpu->cd.sh.utlb_lo[e] &= ~(SH4_PTEL_D | SH4_PTEL_V); |
| 407 |
if (idata & SH4_UTLB_AA_D) |
| 408 |
cpu->cd.sh.utlb_lo[e] |= SH4_PTEL_D; |
| 409 |
if (idata & SH4_UTLB_AA_V) |
| 410 |
cpu->cd.sh.utlb_lo[e] |= SH4_PTEL_V; |
| 411 |
} |
| 412 |
|
| 413 |
if (safe_to_invalidate) |
| 414 |
cpu->invalidate_translation_caches(cpu, |
| 415 |
vaddr_to_invalidate, INVALIDATE_VADDR); |
| 416 |
else |
| 417 |
cpu->invalidate_translation_caches(cpu, 0, |
| 418 |
INVALIDATE_ALL); |
| 419 |
} else { |
| 420 |
odata = cpu->cd.sh.utlb_hi[e] & |
| 421 |
(SH4_UTLB_AA_VPN_MASK | SH4_UTLB_AA_ASID_MASK); |
| 422 |
if (cpu->cd.sh.utlb_lo[e] & SH4_PTEL_D) |
| 423 |
odata |= SH4_UTLB_AA_D; |
| 424 |
if (cpu->cd.sh.utlb_lo[e] & SH4_PTEL_V) |
| 425 |
odata |= SH4_UTLB_AA_V; |
| 426 |
memory_writemax64(cpu, data, len, odata); |
| 427 |
} |
| 428 |
|
| 429 |
return 1; |
| 430 |
} |
| 431 |
|
| 432 |
|
| 433 |
DEVICE_ACCESS(sh4_utlb_da1) |
| 434 |
{ |
| 435 |
uint32_t mask = SH4_PTEL_WT | SH4_PTEL_SH | SH4_PTEL_D | SH4_PTEL_C |
| 436 |
| SH4_PTEL_SZ_MASK | SH4_PTEL_PR_MASK | SH4_PTEL_V | 0x1ffffc00; |
| 437 |
uint64_t idata = 0, odata = 0; |
| 438 |
int e = (relative_addr & SH4_UTLB_E_MASK) >> SH4_UTLB_E_SHIFT; |
| 439 |
|
| 440 |
if (relative_addr & 0x800000) { |
| 441 |
fatal("sh4_utlb_da1: TODO: da2 area\n"); |
| 442 |
exit(1); |
| 443 |
} |
| 444 |
|
| 445 |
if (writeflag == MEM_WRITE) { |
| 446 |
uint32_t old_lo = cpu->cd.sh.utlb_lo[e]; |
| 447 |
int safe_to_invalidate = 0; |
| 448 |
if ((cpu->cd.sh.utlb_lo[e] & SH4_PTEL_SZ_MASK)==SH4_PTEL_SZ_4K) |
| 449 |
safe_to_invalidate = 1; |
| 450 |
|
| 451 |
idata = memory_readmax64(cpu, data, len); |
| 452 |
cpu->cd.sh.utlb_lo[e] &= ~mask; |
| 453 |
cpu->cd.sh.utlb_lo[e] |= (idata & mask); |
| 454 |
|
| 455 |
/* Invalidate if this UTLB entry belongs to the |
| 456 |
currently running process, or if it was shared: */ |
| 457 |
if (old_lo & SH4_PTEL_SH || |
| 458 |
(cpu->cd.sh.utlb_hi[e] & SH4_ITLB_AA_ASID_MASK) == |
| 459 |
(cpu->cd.sh.pteh & SH4_PTEH_ASID_MASK)) { |
| 460 |
if (safe_to_invalidate) |
| 461 |
cpu->invalidate_translation_caches(cpu, |
| 462 |
cpu->cd.sh.utlb_hi[e] & ~0xfff, |
| 463 |
INVALIDATE_VADDR); |
| 464 |
else |
| 465 |
cpu->invalidate_translation_caches(cpu, |
| 466 |
0, INVALIDATE_ALL); |
| 467 |
} |
| 468 |
} else { |
| 469 |
odata = cpu->cd.sh.utlb_lo[e] & mask; |
| 470 |
memory_writemax64(cpu, data, len, odata); |
| 471 |
} |
| 472 |
|
| 473 |
return 1; |
| 474 |
} |
| 475 |
|
| 476 |
|
| 477 |
DEVICE_ACCESS(sh4) |
| 478 |
{ |
| 479 |
struct sh4_data *d = (struct sh4_data *) extra; |
| 480 |
uint64_t idata = 0, odata = 0; |
| 481 |
int timer_nr = 0, dma_channel = 0; |
| 482 |
|
| 483 |
if (writeflag == MEM_WRITE) |
| 484 |
idata = memory_readmax64(cpu, data, len); |
| 485 |
|
| 486 |
relative_addr += SH4_REG_BASE; |
| 487 |
|
| 488 |
/* SD-RAM access uses address only: */ |
| 489 |
if (relative_addr >= 0xff900000 && relative_addr <= 0xff97ffff) { |
| 490 |
/* Possibly not 100% correct... TODO */ |
| 491 |
int v = (relative_addr >> 2) & 0xffff; |
| 492 |
if (relative_addr & 0x00040000) |
| 493 |
d->sdmr3 = v; |
| 494 |
else |
| 495 |
d->sdmr2 = v; |
| 496 |
debug("[ sh4: sdmr%i set to 0x%04"PRIx16" ]\n", |
| 497 |
relative_addr & 0x00040000? 3 : 2, v); |
| 498 |
return 1; |
| 499 |
} |
| 500 |
|
| 501 |
|
| 502 |
switch (relative_addr) { |
| 503 |
|
| 504 |
/*************************************************/ |
| 505 |
|
| 506 |
case SH4_PVR_ADDR: |
| 507 |
odata = cpu->cd.sh.cpu_type.pvr; |
| 508 |
break; |
| 509 |
|
| 510 |
case SH4_PRR_ADDR: |
| 511 |
odata = cpu->cd.sh.cpu_type.prr; |
| 512 |
break; |
| 513 |
|
| 514 |
case SH4_PTEH: |
| 515 |
if (writeflag == MEM_READ) |
| 516 |
odata = cpu->cd.sh.pteh; |
| 517 |
else { |
| 518 |
int old_asid = cpu->cd.sh.pteh & SH4_PTEH_ASID_MASK; |
| 519 |
cpu->cd.sh.pteh = idata; |
| 520 |
|
| 521 |
if ((idata & SH4_PTEH_ASID_MASK) != old_asid) { |
| 522 |
/* |
| 523 |
* TODO: Don't invalidate everything, |
| 524 |
* only those pages that belonged to the |
| 525 |
* old asid. |
| 526 |
*/ |
| 527 |
cpu->invalidate_translation_caches( |
| 528 |
cpu, 0, INVALIDATE_ALL); |
| 529 |
} |
| 530 |
} |
| 531 |
break; |
| 532 |
|
| 533 |
case SH4_PTEL: |
| 534 |
if (writeflag == MEM_READ) |
| 535 |
odata = cpu->cd.sh.ptel; |
| 536 |
else |
| 537 |
cpu->cd.sh.ptel = idata; |
| 538 |
break; |
| 539 |
|
| 540 |
case SH4_TTB: |
| 541 |
if (writeflag == MEM_READ) |
| 542 |
odata = cpu->cd.sh.ttb; |
| 543 |
else |
| 544 |
cpu->cd.sh.ttb = idata; |
| 545 |
break; |
| 546 |
|
| 547 |
case SH4_TEA: |
| 548 |
if (writeflag == MEM_READ) |
| 549 |
odata = cpu->cd.sh.tea; |
| 550 |
else |
| 551 |
cpu->cd.sh.tea = idata; |
| 552 |
break; |
| 553 |
|
| 554 |
case SH4_PTEA: |
| 555 |
if (writeflag == MEM_READ) |
| 556 |
odata = cpu->cd.sh.ptea; |
| 557 |
else |
| 558 |
cpu->cd.sh.ptea = idata; |
| 559 |
break; |
| 560 |
|
| 561 |
case SH4_MMUCR: |
| 562 |
if (writeflag == MEM_READ) { |
| 563 |
odata = cpu->cd.sh.mmucr; |
| 564 |
} else { |
| 565 |
if (idata & SH4_MMUCR_TI) { |
| 566 |
/* TLB invalidate. */ |
| 567 |
int i; |
| 568 |
for (i = 0; i < SH_N_ITLB_ENTRIES; i++) |
| 569 |
cpu->cd.sh.itlb_lo[i] &= |
| 570 |
~SH4_PTEL_V; |
| 571 |
|
| 572 |
for (i = 0; i < SH_N_UTLB_ENTRIES; i++) |
| 573 |
cpu->cd.sh.utlb_lo[i] &= |
| 574 |
~SH4_PTEL_V; |
| 575 |
|
| 576 |
cpu->invalidate_translation_caches(cpu, |
| 577 |
0, INVALIDATE_ALL); |
| 578 |
|
| 579 |
/* Should always read back as 0. */ |
| 580 |
idata &= ~SH4_MMUCR_TI; |
| 581 |
} |
| 582 |
|
| 583 |
cpu->cd.sh.mmucr = idata; |
| 584 |
} |
| 585 |
break; |
| 586 |
|
| 587 |
case SH4_CCR: |
| 588 |
if (writeflag == MEM_READ) { |
| 589 |
odata = cpu->cd.sh.ccr; |
| 590 |
} else { |
| 591 |
cpu->cd.sh.ccr = idata; |
| 592 |
} |
| 593 |
break; |
| 594 |
|
| 595 |
case SH4_QACR0: |
| 596 |
if (writeflag == MEM_READ) { |
| 597 |
odata = cpu->cd.sh.qacr0; |
| 598 |
} else { |
| 599 |
cpu->cd.sh.qacr0 = idata; |
| 600 |
} |
| 601 |
break; |
| 602 |
|
| 603 |
case SH4_QACR1: |
| 604 |
if (writeflag == MEM_READ) { |
| 605 |
odata = cpu->cd.sh.qacr1; |
| 606 |
} else { |
| 607 |
cpu->cd.sh.qacr1 = idata; |
| 608 |
} |
| 609 |
break; |
| 610 |
|
| 611 |
case SH4_TRA: |
| 612 |
if (writeflag == MEM_READ) |
| 613 |
odata = cpu->cd.sh.tra; |
| 614 |
else |
| 615 |
cpu->cd.sh.tra = idata; |
| 616 |
break; |
| 617 |
|
| 618 |
case SH4_EXPEVT: |
| 619 |
if (writeflag == MEM_READ) |
| 620 |
odata = cpu->cd.sh.expevt; |
| 621 |
else |
| 622 |
cpu->cd.sh.expevt = idata; |
| 623 |
break; |
| 624 |
|
| 625 |
case SH4_INTEVT: |
| 626 |
if (writeflag == MEM_READ) |
| 627 |
odata = cpu->cd.sh.intevt; |
| 628 |
else |
| 629 |
cpu->cd.sh.intevt = idata; |
| 630 |
break; |
| 631 |
|
| 632 |
|
| 633 |
/********************************/ |
| 634 |
/* UBC: User Break Controller */ |
| 635 |
|
| 636 |
case 0xff200008: /* SH4_BBRA */ |
| 637 |
/* TODO */ |
| 638 |
break; |
| 639 |
|
| 640 |
|
| 641 |
/********************************/ |
| 642 |
/* TMU: Timer Management Unit */ |
| 643 |
|
| 644 |
case SH4_TOCR: |
| 645 |
/* Timer Output Control Register */ |
| 646 |
if (writeflag == MEM_WRITE) { |
| 647 |
d->tocr = idata; |
| 648 |
if (idata & TOCR_TCOE) |
| 649 |
fatal("[ sh4 timer: TCOE not yet " |
| 650 |
"implemented ]\n"); |
| 651 |
} else { |
| 652 |
odata = d->tocr; |
| 653 |
} |
| 654 |
break; |
| 655 |
|
| 656 |
case SH4_TSTR: |
| 657 |
/* Timer Start Register */ |
| 658 |
if (writeflag == MEM_READ) { |
| 659 |
odata = d->tstr; |
| 660 |
} else { |
| 661 |
if (idata & 1 && !(d->tstr & 1)) |
| 662 |
debug("[ sh4 timer: starting timer 0 ]\n"); |
| 663 |
if (idata & 2 && !(d->tstr & 2)) |
| 664 |
debug("[ sh4 timer: starting timer 1 ]\n"); |
| 665 |
if (idata & 4 && !(d->tstr & 4)) |
| 666 |
debug("[ sh4 timer: starting timer 2 ]\n"); |
| 667 |
if (!(idata & 1) && d->tstr & 1) |
| 668 |
debug("[ sh4 timer: stopping timer 0 ]\n"); |
| 669 |
if (!(idata & 2) && d->tstr & 2) |
| 670 |
debug("[ sh4 timer: stopping timer 1 ]\n"); |
| 671 |
if (!(idata & 4) && d->tstr & 4) |
| 672 |
debug("[ sh4 timer: stopping timer 2 ]\n"); |
| 673 |
d->tstr = idata; |
| 674 |
} |
| 675 |
break; |
| 676 |
|
| 677 |
case SH4_TCOR2: |
| 678 |
timer_nr ++; |
| 679 |
case SH4_TCOR1: |
| 680 |
timer_nr ++; |
| 681 |
case SH4_TCOR0: |
| 682 |
/* Timer Constant Register */ |
| 683 |
if (writeflag == MEM_READ) |
| 684 |
odata = d->tcor[timer_nr]; |
| 685 |
else |
| 686 |
d->tcor[timer_nr] = idata; |
| 687 |
break; |
| 688 |
|
| 689 |
case SH4_TCNT2: |
| 690 |
timer_nr ++; |
| 691 |
case SH4_TCNT1: |
| 692 |
timer_nr ++; |
| 693 |
case SH4_TCNT0: |
| 694 |
/* Timer Counter Register */ |
| 695 |
if (writeflag == MEM_READ) |
| 696 |
odata = d->tcnt[timer_nr]; |
| 697 |
else |
| 698 |
d->tcnt[timer_nr] = idata; |
| 699 |
break; |
| 700 |
|
| 701 |
case SH4_TCR2: |
| 702 |
timer_nr ++; |
| 703 |
case SH4_TCR1: |
| 704 |
timer_nr ++; |
| 705 |
case SH4_TCR0: |
| 706 |
/* Timer Control Register */ |
| 707 |
if (writeflag == MEM_READ) { |
| 708 |
odata = d->tcr[timer_nr]; |
| 709 |
} else { |
| 710 |
if (cpu->cd.sh.pclock == 0) { |
| 711 |
fatal("INTERNAL ERROR: pclock must be set" |
| 712 |
" for this machine. Aborting.\n"); |
| 713 |
exit(1); |
| 714 |
} |
| 715 |
|
| 716 |
switch (idata & 3) { |
| 717 |
case TCR_TPSC_P4: |
| 718 |
d->timer_hz[timer_nr] = cpu->cd.sh.pclock/4.0; |
| 719 |
break; |
| 720 |
case TCR_TPSC_P16: |
| 721 |
d->timer_hz[timer_nr] = cpu->cd.sh.pclock/16.0; |
| 722 |
break; |
| 723 |
case TCR_TPSC_P64: |
| 724 |
d->timer_hz[timer_nr] = cpu->cd.sh.pclock/64.0; |
| 725 |
break; |
| 726 |
case TCR_TPSC_P256: |
| 727 |
d->timer_hz[timer_nr] = cpu->cd.sh.pclock/256.0; |
| 728 |
break; |
| 729 |
} |
| 730 |
|
| 731 |
debug("[ sh4 timer %i clock set to %f Hz ]\n", |
| 732 |
timer_nr, d->timer_hz[timer_nr]); |
| 733 |
|
| 734 |
if (idata & (TCR_ICPF | TCR_ICPE1 | TCR_ICPE0 | |
| 735 |
TCR_CKEG1 | TCR_CKEG0 | TCR_TPSC2)) { |
| 736 |
fatal("Unimplemented SH4 timer control" |
| 737 |
" bits: 0x%08"PRIx32". Aborting.\n", |
| 738 |
(int) idata); |
| 739 |
exit(1); |
| 740 |
} |
| 741 |
|
| 742 |
if (d->tcr[timer_nr] & TCR_UNF && !(idata & TCR_UNF)) { |
| 743 |
INTERRUPT_DEASSERT(d->timer_irq[timer_nr]); |
| 744 |
if (d->timer_interrupts_pending[timer_nr] > 0) |
| 745 |
d->timer_interrupts_pending[timer_nr]--; |
| 746 |
} |
| 747 |
|
| 748 |
d->tcr[timer_nr] = idata; |
| 749 |
} |
| 750 |
break; |
| 751 |
|
| 752 |
|
| 753 |
/*************************************************/ |
| 754 |
/* DMAC: DMA Controller */ |
| 755 |
|
| 756 |
case SH4_SAR3: |
| 757 |
dma_channel ++; |
| 758 |
case SH4_SAR2: |
| 759 |
dma_channel ++; |
| 760 |
case SH4_SAR1: |
| 761 |
dma_channel ++; |
| 762 |
case SH4_SAR0: |
| 763 |
dma_channel ++; |
| 764 |
if (writeflag == MEM_READ) |
| 765 |
odata = cpu->cd.sh.dmac_sar[dma_channel]; |
| 766 |
else |
| 767 |
cpu->cd.sh.dmac_sar[dma_channel] = idata; |
| 768 |
break; |
| 769 |
|
| 770 |
case SH4_DAR3: |
| 771 |
dma_channel ++; |
| 772 |
case SH4_DAR2: |
| 773 |
dma_channel ++; |
| 774 |
case SH4_DAR1: |
| 775 |
dma_channel ++; |
| 776 |
case SH4_DAR0: |
| 777 |
dma_channel ++; |
| 778 |
if (writeflag == MEM_READ) |
| 779 |
odata = cpu->cd.sh.dmac_dar[dma_channel]; |
| 780 |
else |
| 781 |
cpu->cd.sh.dmac_dar[dma_channel] = idata; |
| 782 |
break; |
| 783 |
|
| 784 |
case SH4_DMATCR3: |
| 785 |
dma_channel ++; |
| 786 |
case SH4_DMATCR2: |
| 787 |
dma_channel ++; |
| 788 |
case SH4_DMATCR1: |
| 789 |
dma_channel ++; |
| 790 |
case SH4_DMATCR0: |
| 791 |
dma_channel ++; |
| 792 |
if (writeflag == MEM_READ) |
| 793 |
odata = cpu->cd.sh.dmac_tcr[dma_channel] & 0x00ffffff; |
| 794 |
else { |
| 795 |
if (idata & ~0x00ffffff) { |
| 796 |
fatal("[ SH4 DMA: Attempt to set top 8 " |
| 797 |
"bits of the count register? 0x%08" |
| 798 |
PRIx32" ]\n", (uint32_t) idata); |
| 799 |
exit(1); |
| 800 |
} |
| 801 |
|
| 802 |
/* Special case: writing 0 to the count register |
| 803 |
means 16777216: */ |
| 804 |
if (idata == 0) |
| 805 |
idata = 0x01000000; |
| 806 |
cpu->cd.sh.dmac_tcr[dma_channel] = idata; |
| 807 |
} |
| 808 |
break; |
| 809 |
|
| 810 |
case SH4_CHCR3: |
| 811 |
dma_channel ++; |
| 812 |
case SH4_CHCR2: |
| 813 |
dma_channel ++; |
| 814 |
case SH4_CHCR1: |
| 815 |
dma_channel ++; |
| 816 |
case SH4_CHCR0: |
| 817 |
dma_channel ++; |
| 818 |
if (writeflag == MEM_READ) |
| 819 |
odata = cpu->cd.sh.dmac_chcr[dma_channel]; |
| 820 |
else { |
| 821 |
/* IP.BIN sets this to 0x12c0, and I want to know if |
| 822 |
some other guest OS uses other values. */ |
| 823 |
if (idata != 0x12c0) { |
| 824 |
fatal("[ SH4 DMA: Attempt to set chcr " |
| 825 |
"to 0x%08"PRIx32" ]\n", (uint32_t) idata); |
| 826 |
exit(1); |
| 827 |
} |
| 828 |
|
| 829 |
cpu->cd.sh.dmac_chcr[dma_channel] = idata; |
| 830 |
} |
| 831 |
break; |
| 832 |
|
| 833 |
|
| 834 |
/*************************************************/ |
| 835 |
/* BSC: Bus State Controller */ |
| 836 |
|
| 837 |
case SH4_BCR1: |
| 838 |
if (writeflag == MEM_WRITE) |
| 839 |
d->bsc_bcr1 = idata & 0x033efffd; |
| 840 |
else { |
| 841 |
odata = d->bsc_bcr1; |
| 842 |
if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
| 843 |
odata |= BCR1_LITTLE_ENDIAN; |
| 844 |
} |
| 845 |
break; |
| 846 |
|
| 847 |
case SH4_BCR2: |
| 848 |
if (len != sizeof(uint16_t)) { |
| 849 |
fatal("Non-16-bit SH4_BCR2 access?\n"); |
| 850 |
exit(1); |
| 851 |
} |
| 852 |
if (writeflag == MEM_WRITE) |
| 853 |
d->bsc_bcr2 = idata & 0x3ffd; |
| 854 |
else |
| 855 |
odata = d->bsc_bcr2; |
| 856 |
break; |
| 857 |
|
| 858 |
case SH4_WCR1: |
| 859 |
if (writeflag == MEM_WRITE) |
| 860 |
d->bsc_wcr1 = idata & 0x77777777; |
| 861 |
else |
| 862 |
odata = d->bsc_wcr1; |
| 863 |
break; |
| 864 |
|
| 865 |
case SH4_WCR2: |
| 866 |
if (writeflag == MEM_WRITE) |
| 867 |
d->bsc_wcr2 = idata & 0xfffeefff; |
| 868 |
else |
| 869 |
odata = d->bsc_wcr2; |
| 870 |
break; |
| 871 |
|
| 872 |
case SH4_MCR: |
| 873 |
if (writeflag == MEM_WRITE) |
| 874 |
d->bsc_mcr = idata & 0xf8bbffff; |
| 875 |
else |
| 876 |
odata = d->bsc_mcr; |
| 877 |
break; |
| 878 |
|
| 879 |
case SH4_RTCSR: |
| 880 |
/* |
| 881 |
* Refresh Time Control/Status Register. Called RTCSR in |
| 882 |
* NetBSD, but RTSCR in the SH7750 manual? |
| 883 |
*/ |
| 884 |
if (writeflag == MEM_WRITE) { |
| 885 |
idata &= 0x00ff; |
| 886 |
if (idata & RTCSR_CMF) { |
| 887 |
idata = (idata & ~RTCSR_CMF) |
| 888 |
| (d->bsc_rtcsr & RTCSR_CMF); |
| 889 |
} |
| 890 |
d->bsc_rtcsr = idata & 0x00ff; |
| 891 |
} else |
| 892 |
odata = d->bsc_rtcsr; |
| 893 |
break; |
| 894 |
|
| 895 |
case SH4_RTCOR: |
| 896 |
/* Refresh Time Constant Register (8 bits): */ |
| 897 |
if (writeflag == MEM_WRITE) |
| 898 |
d->bsc_rtcor = idata & 0x00ff; |
| 899 |
else |
| 900 |
odata = d->bsc_rtcor & 0x00ff; |
| 901 |
break; |
| 902 |
|
| 903 |
case SH4_RFCR: |
| 904 |
/* Refresh Count Register (10 bits): */ |
| 905 |
if (writeflag == MEM_WRITE) |
| 906 |
d->bsc_rfcr = idata & 0x03ff; |
| 907 |
else |
| 908 |
odata = d->bsc_rfcr & 0x03ff; |
| 909 |
break; |
| 910 |
|
| 911 |
|
| 912 |
/*******************************************/ |
| 913 |
/* GPIO: General-purpose I/O controller */ |
| 914 |
|
| 915 |
case SH4_PCTRA: |
| 916 |
if (writeflag == MEM_WRITE) |
| 917 |
d->pctra = idata; |
| 918 |
else |
| 919 |
odata = d->pctra; |
| 920 |
break; |
| 921 |
|
| 922 |
case SH4_PDTRA: |
| 923 |
if (writeflag == MEM_WRITE) { |
| 924 |
debug("[ sh4: pdtra: write: TODO ]\n"); |
| 925 |
d->pdtra = idata; |
| 926 |
} else { |
| 927 |
debug("[ sh4: pdtra: read: TODO ]\n"); |
| 928 |
odata = d->pdtra; |
| 929 |
} |
| 930 |
break; |
| 931 |
|
| 932 |
case SH4_PCTRB: |
| 933 |
if (writeflag == MEM_WRITE) |
| 934 |
d->pctrb = idata; |
| 935 |
else |
| 936 |
odata = d->pctrb; |
| 937 |
break; |
| 938 |
|
| 939 |
case SH4_PDTRB: |
| 940 |
if (writeflag == MEM_WRITE) { |
| 941 |
debug("[ sh4: pdtrb: write: TODO ]\n"); |
| 942 |
d->pdtrb = idata; |
| 943 |
} else { |
| 944 |
debug("[ sh4: pdtrb: read: TODO ]\n"); |
| 945 |
odata = d->pdtrb; |
| 946 |
} |
| 947 |
break; |
| 948 |
|
| 949 |
|
| 950 |
/*********************************/ |
| 951 |
/* INTC: Interrupt Controller */ |
| 952 |
|
| 953 |
case SH4_ICR: |
| 954 |
if (writeflag == MEM_WRITE) { |
| 955 |
if (idata & 0x80) { |
| 956 |
fatal("SH4 INTC: IRLM not yet " |
| 957 |
"supported. TODO\n"); |
| 958 |
exit(1); |
| 959 |
} |
| 960 |
} |
| 961 |
break; |
| 962 |
|
| 963 |
case SH4_IPRA: |
| 964 |
if (writeflag == MEM_READ) |
| 965 |
odata = cpu->cd.sh.intc_ipra; |
| 966 |
else |
| 967 |
cpu->cd.sh.intc_ipra = idata; |
| 968 |
break; |
| 969 |
|
| 970 |
case SH4_IPRB: |
| 971 |
if (writeflag == MEM_READ) |
| 972 |
odata = cpu->cd.sh.intc_iprb; |
| 973 |
else |
| 974 |
cpu->cd.sh.intc_iprb = idata; |
| 975 |
break; |
| 976 |
|
| 977 |
case SH4_IPRC: |
| 978 |
if (writeflag == MEM_READ) |
| 979 |
odata = cpu->cd.sh.intc_iprc; |
| 980 |
else |
| 981 |
cpu->cd.sh.intc_iprc = idata; |
| 982 |
break; |
| 983 |
|
| 984 |
case SH4_IPRD: |
| 985 |
if (writeflag == MEM_READ) |
| 986 |
odata = cpu->cd.sh.intc_iprd; |
| 987 |
else |
| 988 |
cpu->cd.sh.intc_iprd = idata; |
| 989 |
break; |
| 990 |
|
| 991 |
|
| 992 |
/*************************************************/ |
| 993 |
/* SCIF: Serial Controller Interface with FIFO */ |
| 994 |
|
| 995 |
case SH4_SCIF_BASE + SCIF_SMR: |
| 996 |
if (writeflag == MEM_WRITE) { |
| 997 |
d->scif_smr = idata; |
| 998 |
} else { |
| 999 |
odata = d->scif_smr; |
| 1000 |
} |
| 1001 |
break; |
| 1002 |
|
| 1003 |
case SH4_SCIF_BASE + SCIF_BRR: |
| 1004 |
if (writeflag == MEM_WRITE) { |
| 1005 |
d->scif_brr = idata; |
| 1006 |
} else { |
| 1007 |
odata = d->scif_brr; |
| 1008 |
} |
| 1009 |
break; |
| 1010 |
|
| 1011 |
case SH4_SCIF_BASE + SCIF_SCR: |
| 1012 |
if (writeflag == MEM_WRITE) { |
| 1013 |
d->scif_scr = idata; |
| 1014 |
scif_reassert_interrupts(d); |
| 1015 |
} else { |
| 1016 |
odata = d->scif_scr; |
| 1017 |
} |
| 1018 |
break; |
| 1019 |
|
| 1020 |
case SH4_SCIF_BASE + SCIF_FTDR: |
| 1021 |
if (writeflag == MEM_WRITE) { |
| 1022 |
console_putchar(d->scif_console_handle, idata); |
| 1023 |
d->scif_delayed_tx = 1; |
| 1024 |
} |
| 1025 |
break; |
| 1026 |
|
| 1027 |
case SH4_SCIF_BASE + SCIF_SSR: |
| 1028 |
if (writeflag == MEM_READ) { |
| 1029 |
odata = d->scif_ssr; |
| 1030 |
} else { |
| 1031 |
d->scif_ssr &= ~idata; |
| 1032 |
scif_reassert_interrupts(d); |
| 1033 |
} |
| 1034 |
break; |
| 1035 |
|
| 1036 |
case SH4_SCIF_BASE + SCIF_FRDR: |
| 1037 |
{ |
| 1038 |
int x = console_readchar(d->scif_console_handle); |
| 1039 |
if (x == 13) |
| 1040 |
x = 10; |
| 1041 |
odata = x < 0? 0 : x; |
| 1042 |
d->scif_ssr &= ~SCSSR2_DR; |
| 1043 |
} |
| 1044 |
break; |
| 1045 |
|
| 1046 |
case SH4_SCIF_BASE + SCIF_FCR: |
| 1047 |
if (writeflag == MEM_WRITE) { |
| 1048 |
d->scif_fcr = idata; |
| 1049 |
} else { |
| 1050 |
odata = d->scif_fcr; |
| 1051 |
} |
| 1052 |
break; |
| 1053 |
|
| 1054 |
case SH4_SCIF_BASE + SCIF_FDR: |
| 1055 |
odata = console_charavail(d->scif_console_handle); |
| 1056 |
break; |
| 1057 |
|
| 1058 |
|
| 1059 |
/*************************************************/ |
| 1060 |
|
| 1061 |
case SH4_RSECCNT: |
| 1062 |
case SH4_RMINCNT: |
| 1063 |
case SH4_RHRCNT: |
| 1064 |
case SH4_RWKCNT: |
| 1065 |
case SH4_RDAYCNT: |
| 1066 |
case SH4_RMONCNT: |
| 1067 |
case SH4_RYRCNT: |
| 1068 |
case SH4_RSECAR: |
| 1069 |
case SH4_RMINAR: |
| 1070 |
case SH4_RHRAR: |
| 1071 |
case SH4_RWKAR: |
| 1072 |
case SH4_RDAYAR: |
| 1073 |
case SH4_RMONAR: |
| 1074 |
if (writeflag == MEM_WRITE) { |
| 1075 |
d->rtc_reg[(relative_addr - 0xffc80000) / 4] = idata; |
| 1076 |
} else { |
| 1077 |
/* TODO: Update rtc_reg based on host's date/time. */ |
| 1078 |
odata = d->rtc_reg[(relative_addr - 0xffc80000) / 4]; |
| 1079 |
} |
| 1080 |
break; |
| 1081 |
|
| 1082 |
case SH4_RCR1: |
| 1083 |
if (writeflag == MEM_READ) |
| 1084 |
odata = d->rtc_rcr1; |
| 1085 |
else { |
| 1086 |
d->rtc_rcr1 = idata; |
| 1087 |
if (idata & 0x18) { |
| 1088 |
fatal("SH4: TODO: RTC interrupt enable\n"); |
| 1089 |
exit(1); |
| 1090 |
} |
| 1091 |
} |
| 1092 |
break; |
| 1093 |
|
| 1094 |
|
| 1095 |
/*************************************************/ |
| 1096 |
|
| 1097 |
default:if (writeflag == MEM_READ) { |
| 1098 |
fatal("[ sh4: read from addr 0x%x ]\n", |
| 1099 |
(int)relative_addr); |
| 1100 |
} else { |
| 1101 |
fatal("[ sh4: write to addr 0x%x: 0x%x ]\n", |
| 1102 |
(int)relative_addr, (int)idata); |
| 1103 |
} |
| 1104 |
#ifdef SH4_DEGUG |
| 1105 |
// exit(1); |
| 1106 |
#endif |
| 1107 |
} |
| 1108 |
|
| 1109 |
if (writeflag == MEM_READ) |
| 1110 |
memory_writemax64(cpu, data, len, odata); |
| 1111 |
|
| 1112 |
return 1; |
| 1113 |
} |
| 1114 |
|
| 1115 |
|
| 1116 |
DEVINIT(sh4) |
| 1117 |
{ |
| 1118 |
char tmp[200]; |
| 1119 |
struct machine *machine = devinit->machine; |
| 1120 |
struct sh4_data *d = malloc(sizeof(struct sh4_data)); |
| 1121 |
if (d == NULL) { |
| 1122 |
fprintf(stderr, "out of memory\n"); |
| 1123 |
exit(1); |
| 1124 |
} |
| 1125 |
memset(d, 0, sizeof(struct sh4_data)); |
| 1126 |
|
| 1127 |
d->scif_console_handle = console_start_slave(devinit->machine, |
| 1128 |
"SH4 SCIF", 1); |
| 1129 |
|
| 1130 |
snprintf(tmp, sizeof(tmp), "%s.irq[0x%x]", |
| 1131 |
devinit->interrupt_path, SH4_INTEVT_SCIF_RXI); |
| 1132 |
INTERRUPT_CONNECT(tmp, d->scif_rx_irq); |
| 1133 |
snprintf(tmp, sizeof(tmp), "%s.irq[0x%x]", |
| 1134 |
devinit->interrupt_path, SH4_INTEVT_SCIF_TXI); |
| 1135 |
INTERRUPT_CONNECT(tmp, d->scif_tx_irq); |
| 1136 |
|
| 1137 |
memory_device_register(machine->memory, devinit->name, |
| 1138 |
SH4_REG_BASE, 0x01000000, dev_sh4_access, d, DM_DEFAULT, NULL); |
| 1139 |
|
| 1140 |
/* On-chip RAM/cache: */ |
| 1141 |
dev_ram_init(machine, 0x1e000000, 0x8000, DEV_RAM_RAM, 0x0); |
| 1142 |
|
| 1143 |
/* 0xe0000000: Store queues: */ |
| 1144 |
dev_ram_init(machine, 0xe0000000, 32 * 2, DEV_RAM_RAM, 0x0); |
| 1145 |
|
| 1146 |
/* |
| 1147 |
* 0xf0000000 SH4_CCIA I-Cache address array |
| 1148 |
* 0xf1000000 SH4_CCID I-Cache data array |
| 1149 |
* 0xf4000000 SH4_CCDA D-Cache address array |
| 1150 |
* 0xf5000000 SH4_CCDD D-Cache data array |
| 1151 |
* |
| 1152 |
* TODO: Implement more correct cache behaviour? |
| 1153 |
*/ |
| 1154 |
dev_ram_init(machine, SH4_CCIA, SH4_ICACHE_SIZE * 2, DEV_RAM_RAM, 0x0); |
| 1155 |
dev_ram_init(machine, SH4_CCID, SH4_ICACHE_SIZE, DEV_RAM_RAM, 0x0); |
| 1156 |
dev_ram_init(machine, SH4_CCDA, SH4_DCACHE_SIZE * 2, DEV_RAM_RAM, 0x0); |
| 1157 |
dev_ram_init(machine, SH4_CCDD, SH4_DCACHE_SIZE, DEV_RAM_RAM, 0x0); |
| 1158 |
|
| 1159 |
/* 0xf2000000 SH4_ITLB_AA */ |
| 1160 |
memory_device_register(machine->memory, devinit->name, SH4_ITLB_AA, |
| 1161 |
0x01000000, dev_sh4_itlb_aa_access, d, DM_DEFAULT, NULL); |
| 1162 |
|
| 1163 |
/* 0xf3000000 SH4_ITLB_DA1 */ |
| 1164 |
memory_device_register(machine->memory, devinit->name, SH4_ITLB_DA1, |
| 1165 |
0x01000000, dev_sh4_itlb_da1_access, d, DM_DEFAULT, NULL); |
| 1166 |
|
| 1167 |
/* 0xf6000000 SH4_UTLB_AA */ |
| 1168 |
memory_device_register(machine->memory, devinit->name, SH4_UTLB_AA, |
| 1169 |
0x01000000, dev_sh4_utlb_aa_access, d, DM_DEFAULT, NULL); |
| 1170 |
|
| 1171 |
/* 0xf7000000 SH4_UTLB_DA1 */ |
| 1172 |
memory_device_register(machine->memory, devinit->name, SH4_UTLB_DA1, |
| 1173 |
0x01000000, dev_sh4_utlb_da1_access, d, DM_DEFAULT, NULL); |
| 1174 |
|
| 1175 |
d->sh4_timer = timer_add(SH4_PSEUDO_TIMER_HZ, sh4_timer_tick, d); |
| 1176 |
machine_add_tickfunction(devinit->machine, dev_sh4_tick, d, |
| 1177 |
SH4_TICK_SHIFT, 0.0); |
| 1178 |
|
| 1179 |
/* Initial Timer values, according to the SH7750 manual: */ |
| 1180 |
d->tcor[0] = 0xffffffff; d->tcnt[0] = 0xffffffff; |
| 1181 |
d->tcor[1] = 0xffffffff; d->tcnt[1] = 0xffffffff; |
| 1182 |
d->tcor[2] = 0xffffffff; d->tcnt[2] = 0xffffffff; |
| 1183 |
|
| 1184 |
snprintf(tmp, sizeof(tmp), "emul[0].machine[0].cpu[0].irq[0x%x]", |
| 1185 |
SH_INTEVT_TMU0_TUNI0); |
| 1186 |
if (!interrupt_handler_lookup(tmp, &d->timer_irq[0])) { |
| 1187 |
fatal("Could not find interrupt '%s'.\n", tmp); |
| 1188 |
exit(1); |
| 1189 |
} |
| 1190 |
snprintf(tmp, sizeof(tmp), "emul[0].machine[0].cpu[0].irq[0x%x]", |
| 1191 |
SH_INTEVT_TMU1_TUNI1); |
| 1192 |
if (!interrupt_handler_lookup(tmp, &d->timer_irq[1])) { |
| 1193 |
fatal("Could not find interrupt '%s'.\n", tmp); |
| 1194 |
exit(1); |
| 1195 |
} |
| 1196 |
snprintf(tmp, sizeof(tmp), "emul[0].machine[0].cpu[0].irq[0x%x]", |
| 1197 |
SH_INTEVT_TMU2_TUNI2); |
| 1198 |
if (!interrupt_handler_lookup(tmp, &d->timer_irq[2])) { |
| 1199 |
fatal("Could not find interrupt '%s'.\n", tmp); |
| 1200 |
exit(1); |
| 1201 |
} |
| 1202 |
|
| 1203 |
/* Bus State Controller initial values: */ |
| 1204 |
d->bsc_bcr2 = 0x3ffc; |
| 1205 |
d->bsc_wcr1 = 0x77777777; |
| 1206 |
d->bsc_wcr2 = 0xfffeefff; |
| 1207 |
|
| 1208 |
return 1; |
| 1209 |
} |
| 1210 |
|
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