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dpavlin |
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/* |
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* Copyright (C) 2005-2006 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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dpavlin |
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* $Id: machine_alpha.c,v 1.7 2006/06/24 10:19:19 debug Exp $ |
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dpavlin |
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*/ |
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#include <stdio.h> |
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#include <string.h> |
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#include <stdlib.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 "machine.h" |
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#include "memory.h" |
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#include "misc.h" |
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dpavlin |
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#include "alpha_autoconf.h" |
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dpavlin |
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#include "alpha_rpb.h" |
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MACHINE_SETUP(alpha) |
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{ |
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struct rpb rpb; |
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struct crb crb; |
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struct ctb ctb; |
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dpavlin |
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struct mddt mddt; |
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dpavlin |
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switch (machine->machine_subtype) { |
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dpavlin |
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case ST_ALPHABOOK1: |
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machine->machine_name = "AlphaBook 1"; |
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device_add(machine, "lca"); |
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break; |
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case ST_DEC_4100: |
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machine->machine_name = "AlphaServer 4100"; |
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break; |
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dpavlin |
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case ST_DEC_3000_300: |
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machine->machine_name = "DEC 3000/300"; |
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machine->main_console_handle = (size_t)device_add(machine, |
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"z8530 addr=0x1b0200000 irq=0 addr_mult=4"); |
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break; |
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dpavlin |
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dpavlin |
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case ST_EB164: |
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machine->machine_name = "EB164"; |
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break; |
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dpavlin |
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dpavlin |
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default:fatal("Unimplemented Alpha machine type %i\n", |
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machine->machine_subtype); |
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exit(1); |
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} |
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if (!machine->prom_emulation) |
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return; |
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dpavlin |
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/* These are used by NetBSD/alpha: */ |
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dpavlin |
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/* a0 = First free Page Frame Number */ |
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/* a1 = PFN of current Level 1 page table */ |
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/* a2 = Bootinfo magic */ |
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/* a3 = Bootinfo pointer */ |
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/* a4 = Bootinfo version */ |
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cpu->cd.alpha.r[ALPHA_A0] = 16*1024*1024 / 8192; |
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dpavlin |
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cpu->cd.alpha.r[ALPHA_A1] = 0; /* TODO */ |
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cpu->cd.alpha.r[ALPHA_A2] = ALPHA_BOOTINFO_MAGIC; |
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cpu->cd.alpha.r[ALPHA_A3] = 0; /* TODO */ |
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cpu->cd.alpha.r[ALPHA_A4] = 1; |
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dpavlin |
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dpavlin |
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/* |
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* HWRPB: Hardware Restart Parameter Block |
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* |
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* TODO: Almost everything. |
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*/ |
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dpavlin |
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memset(&rpb, 0, sizeof(struct rpb)); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(rpb.rpb_phys), HWRPB_ADDR); |
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strlcpy((char *)&(rpb.rpb_magic), "HWRPB", 8); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(rpb.rpb_size), sizeof(struct rpb)); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(rpb.rpb_page_size), 8192); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(rpb.rpb_type), machine->machine_subtype); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(rpb.rpb_cc_freq), 100000000); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(rpb.rpb_ctb_off), CTB_ADDR - HWRPB_ADDR); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(rpb.rpb_crb_off), CRB_ADDR - HWRPB_ADDR); |
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dpavlin |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(rpb.rpb_memdat_off), MEMDAT_ADDR - HWRPB_ADDR); |
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dpavlin |
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/* CTB: Console Terminal Block */ |
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memset(&ctb, 0, sizeof(struct ctb)); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(ctb.ctb_term_type), machine->use_x11? |
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CTB_GRAPHICS : CTB_PRINTERPORT); |
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/* CRB: Console Routine Block */ |
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memset(&crb, 0, sizeof(struct crb)); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(crb.crb_v_dispatch), CRB_ADDR - 0x100); |
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store_64bit_word(cpu, CRB_ADDR - 0x100 + 8, 0x10000); |
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dpavlin |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(crb.crb_v_fixup), CRB_ADDR - 0x80); |
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store_64bit_word(cpu, CRB_ADDR - 0x80 + 8, 0x10800); |
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dpavlin |
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/* |
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dpavlin |
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* MDDT: Memory Data Descriptor Table. For now, it is a simple |
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* two-entry table with half of the available RAM in each entry. |
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* (The values are in number of 8K pages.) |
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* The first 16 MB are not included (the kernel lives there). |
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* The last 1 MB is not included either, it is reserved for bootup |
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* and similar. |
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*/ |
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memset(&mddt, 0, sizeof(struct mddt)); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(mddt.mddt_cluster_cnt), 2); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(mddt.mddt_clusters[0].mddt_pfn), 128 * 16); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(mddt.mddt_clusters[0].mddt_pg_cnt), |
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(machine->physical_ram_in_mb - 16) * 128); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(mddt.mddt_clusters[1].mddt_pfn), machine->physical_ram_in_mb*128); |
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store_64bit_word_in_host(cpu, (unsigned char *) |
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&(mddt.mddt_clusters[1].mddt_pg_cnt), (machine->physical_ram_in_mb |
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- 1) * 128); |
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/* |
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* Place a special "hack" palcode call at 0x10000 and 0x10800: |
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dpavlin |
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* (Hopefully nothing else will be there.) |
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*/ |
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store_32bit_word(cpu, 0x10000, 0x3fffffe); |
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dpavlin |
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store_32bit_word(cpu, 0x10800, 0x3fffffd); |
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dpavlin |
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store_buf(cpu, HWRPB_ADDR, (char *)&rpb, sizeof(struct rpb)); |
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store_buf(cpu, CTB_ADDR, (char *)&ctb, sizeof(struct ctb)); |
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store_buf(cpu, CRB_ADDR, (char *)&crb, sizeof(struct crb)); |
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dpavlin |
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store_buf(cpu, MEMDAT_ADDR, (char *)&mddt, sizeof(struct mddt)); |
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dpavlin |
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} |
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MACHINE_DEFAULT_CPU(alpha) |
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{ |
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dpavlin |
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switch (machine->machine_subtype) { |
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case ST_ALPHABOOK1: |
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machine->cpu_name = strdup("21066"); |
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break; |
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case ST_DEC_4100: |
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machine->cpu_name = strdup("21164A-2"); |
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break; |
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case ST_DEC_3000_300: |
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machine->cpu_name = strdup("21064"); |
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break; |
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case ST_EB164: |
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machine->cpu_name = strdup("21164PC"); |
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break; |
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default:fatal("Unimplemented Alpha machine type %i\n", |
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machine->machine_subtype); |
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exit(1); |
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} |
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dpavlin |
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} |
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MACHINE_DEFAULT_RAM(alpha) |
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{ |
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machine->physical_ram_in_mb = 64; |
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} |
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MACHINE_REGISTER(alpha) |
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{ |
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dpavlin |
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MR_DEFAULT(alpha, "Alpha", ARCH_ALPHA, MACHINE_ALPHA); |
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dpavlin |
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dpavlin |
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machine_entry_add_alias(me, "alpha"); |
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dpavlin |
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dpavlin |
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machine_entry_add_subtype(me, "AlphaBook 1", ST_ALPHABOOK1, |
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"alphabook1", NULL); |
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dpavlin |
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dpavlin |
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machine_entry_add_subtype(me, "AlphaServer 4100", ST_DEC_4100, |
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"alphaserver4100", NULL); |
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dpavlin |
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dpavlin |
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machine_entry_add_subtype(me, "DEC 3000/300", ST_DEC_3000_300, |
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"3000/300", NULL); |
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dpavlin |
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dpavlin |
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machine_entry_add_subtype(me, "EB164", ST_EB164, |
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"eb164", NULL); |
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dpavlin |
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me->set_default_ram = machine_default_ram_alpha; |
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} |
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