lxdream 0.9.1revision 87:11208d725b61
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raw | bz2 | zip | gz | changeset | 87:11208d725b61 |
| parent | 86:f151e63f9754 |
| child | 88:0a1bd43fa4ad |
| author | nkeynes |
| date | Sun Jan 22 22:40:53 2006 +0000 (18 years ago) |
Add dummied-up BIOS syscalls
 | src/Makefile.am | view | annotate | diff | log | |
| src/Makefile.in | view | annotate | diff | log | |
| src/bios.c | view | annotate | diff | log | |
| src/bios.h | view | annotate | diff | log | |
| src/main.c | view | annotate | diff | log |
1.1 --- a/src/Makefile.am Sun Jan 22 22:40:05 2006 +00001.2 +++ b/src/Makefile.am Sun Jan 22 22:40:53 2006 +00001.3 @@ -13,6 +13,7 @@1.4 mem.c mem.h mmio.h watch.c \1.5 asic.c asic.h \1.6 pvr2.c pvr2.h \1.7 + bios.c bios.h \1.8 gdrom/ide.c gdrom/ide.h \1.9 video.c dreamcast.c dreamcast.h \1.10 sh4/intc.c sh4/intc.h sh4/sh4mem.c sh4/timer.c sh4/dmac.c \
2.1 --- a/src/Makefile.in Sun Jan 22 22:40:05 2006 +00002.2 +++ b/src/Makefile.in Sun Jan 22 22:40:53 2006 +00002.3 @@ -140,13 +140,15 @@2.4 mem.c mem.h mmio.h watch.c \2.5 asic.c asic.h \2.6 pvr2.c pvr2.h \2.7 + bios.c bios.h \2.8 gdrom/ide.c gdrom/ide.h \2.9 video.c dreamcast.c dreamcast.h \2.10 sh4/intc.c sh4/intc.h sh4/sh4mem.c sh4/timer.c sh4/dmac.c \2.11 sh4/sh4core.c sh4/sh4core.h sh4/sh4dasm.c sh4/sh4dasm.h \2.12 sh4/sh4mmio.c sh4/sh4mmio.h sh4/scif.c \2.13 aica/armcore.c aica/armcore.h aica/armdasm.c aica/armmem.c \2.14 - aica/aica.c aica/aica.h \2.15 + aica/aica.c aica/aica.h aica/audio.c aica/audio.h \2.16 + aica/audio_null.c aica/audio_esd.c \2.17 maple/maple.c maple/maple.h \2.18 maple/controller.c maple/controller.h \2.19 gui/support.c gui/support.h \2.20 @@ -157,7 +159,7 @@2.21 loader.c bootstrap.c util.c2.24 -dream_LDADD = @PACKAGE_LIBS@ $(INTLLIBS)2.25 +dream_LDADD = @PACKAGE_LIBS@ $(INTLLIBS) -lesd2.27 AM_CFLAGS = -D_ISOC99_SOURCE -D_BSD_SOURCE2.28 subdir = src2.29 @@ -169,16 +171,17 @@2.30 PROGRAMS = $(bin_PROGRAMS)2.32 am_dream_OBJECTS = main.$(OBJEXT) mem.$(OBJEXT) watch.$(OBJEXT) \2.33 - asic.$(OBJEXT) pvr2.$(OBJEXT) ide.$(OBJEXT) video.$(OBJEXT) \2.34 - dreamcast.$(OBJEXT) intc.$(OBJEXT) sh4mem.$(OBJEXT) \2.35 - timer.$(OBJEXT) dmac.$(OBJEXT) sh4core.$(OBJEXT) \2.36 - sh4dasm.$(OBJEXT) sh4mmio.$(OBJEXT) scif.$(OBJEXT) \2.37 - armcore.$(OBJEXT) armdasm.$(OBJEXT) armmem.$(OBJEXT) \2.38 - aica.$(OBJEXT) maple.$(OBJEXT) controller.$(OBJEXT) \2.39 - support.$(OBJEXT) interface.$(OBJEXT) callbacks.$(OBJEXT) \2.40 - gui.$(OBJEXT) mmr_win.$(OBJEXT) debug_win.$(OBJEXT) \2.41 - dump_win.$(OBJEXT) loader.$(OBJEXT) bootstrap.$(OBJEXT) \2.42 - util.$(OBJEXT)2.43 + asic.$(OBJEXT) pvr2.$(OBJEXT) bios.$(OBJEXT) ide.$(OBJEXT) \2.44 + video.$(OBJEXT) dreamcast.$(OBJEXT) intc.$(OBJEXT) \2.45 + sh4mem.$(OBJEXT) timer.$(OBJEXT) dmac.$(OBJEXT) \2.46 + sh4core.$(OBJEXT) sh4dasm.$(OBJEXT) sh4mmio.$(OBJEXT) \2.47 + scif.$(OBJEXT) armcore.$(OBJEXT) armdasm.$(OBJEXT) \2.48 + armmem.$(OBJEXT) aica.$(OBJEXT) audio.$(OBJEXT) \2.49 + audio_null.$(OBJEXT) audio_esd.$(OBJEXT) maple.$(OBJEXT) \2.50 + controller.$(OBJEXT) support.$(OBJEXT) interface.$(OBJEXT) \2.51 + callbacks.$(OBJEXT) gui.$(OBJEXT) mmr_win.$(OBJEXT) \2.52 + debug_win.$(OBJEXT) dump_win.$(OBJEXT) loader.$(OBJEXT) \2.53 + bootstrap.$(OBJEXT) util.$(OBJEXT)2.54 dream_OBJECTS = $(am_dream_OBJECTS)2.55 dream_DEPENDENCIES =2.56 dream_LDFLAGS =2.57 @@ -188,7 +191,9 @@2.58 am__depfiles_maybe = depfiles2.59 @AMDEP_TRUE@DEP_FILES = ./$(DEPDIR)/aica.Po ./$(DEPDIR)/armcore.Po \2.60 @AMDEP_TRUE@ ./$(DEPDIR)/armdasm.Po ./$(DEPDIR)/armmem.Po \2.61 -@AMDEP_TRUE@ ./$(DEPDIR)/asic.Po ./$(DEPDIR)/bootstrap.Po \2.62 +@AMDEP_TRUE@ ./$(DEPDIR)/asic.Po ./$(DEPDIR)/audio.Po \2.63 +@AMDEP_TRUE@ ./$(DEPDIR)/audio_esd.Po ./$(DEPDIR)/audio_null.Po \2.64 +@AMDEP_TRUE@ ./$(DEPDIR)/bios.Po ./$(DEPDIR)/bootstrap.Po \2.65 @AMDEP_TRUE@ ./$(DEPDIR)/callbacks.Po ./$(DEPDIR)/controller.Po \2.66 @AMDEP_TRUE@ ./$(DEPDIR)/debug_win.Po ./$(DEPDIR)/dmac.Po \2.67 @AMDEP_TRUE@ ./$(DEPDIR)/dreamcast.Po ./$(DEPDIR)/dump_win.Po \2.68 @@ -258,6 +263,10 @@2.69 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/armdasm.Po@am__quote@2.70 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/armmem.Po@am__quote@2.71 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/asic.Po@am__quote@2.72 +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/audio.Po@am__quote@2.73 +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/audio_esd.Po@am__quote@2.74 +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/audio_null.Po@am__quote@2.75 +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bios.Po@am__quote@2.76 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bootstrap.Po@am__quote@2.77 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/callbacks.Po@am__quote@2.78 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/controller.Po@am__quote@2.79 @@ -594,6 +603,72 @@2.80 @AMDEP_TRUE@@am__fastdepCC_FALSE@ $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@2.81 @am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o aica.obj `if test -f 'aica/aica.c'; then $(CYGPATH_W) 'aica/aica.c'; else $(CYGPATH_W) '$(srcdir)/aica/aica.c'; fi`2.83 +audio.o: aica/audio.c2.84 +@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT audio.o -MD -MP -MF "$(DEPDIR)/audio.Tpo" \2.85 +@am__fastdepCC_TRUE@ -c -o audio.o `test -f 'aica/audio.c' || echo '$(srcdir)/'`aica/audio.c; \2.86 +@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/audio.Tpo" "$(DEPDIR)/audio.Po"; \2.87 +@am__fastdepCC_TRUE@ else rm -f "$(DEPDIR)/audio.Tpo"; exit 1; \2.88 +@am__fastdepCC_TRUE@ fi2.89 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='aica/audio.c' object='audio.o' libtool=no @AMDEPBACKSLASH@2.90 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ depfile='$(DEPDIR)/audio.Po' tmpdepfile='$(DEPDIR)/audio.TPo' @AMDEPBACKSLASH@2.91 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@2.92 +@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o audio.o `test -f 'aica/audio.c' || echo '$(srcdir)/'`aica/audio.c2.93 +2.94 +audio.obj: aica/audio.c2.95 +@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT audio.obj -MD -MP -MF "$(DEPDIR)/audio.Tpo" \2.96 +@am__fastdepCC_TRUE@ -c -o audio.obj `if test -f 'aica/audio.c'; then $(CYGPATH_W) 'aica/audio.c'; else $(CYGPATH_W) '$(srcdir)/aica/audio.c'; fi`; \2.97 +@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/audio.Tpo" "$(DEPDIR)/audio.Po"; \2.98 +@am__fastdepCC_TRUE@ else rm -f "$(DEPDIR)/audio.Tpo"; exit 1; \2.99 +@am__fastdepCC_TRUE@ fi2.100 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='aica/audio.c' object='audio.obj' libtool=no @AMDEPBACKSLASH@2.101 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ depfile='$(DEPDIR)/audio.Po' tmpdepfile='$(DEPDIR)/audio.TPo' @AMDEPBACKSLASH@2.102 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@2.103 +@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o audio.obj `if test -f 'aica/audio.c'; then $(CYGPATH_W) 'aica/audio.c'; else $(CYGPATH_W) '$(srcdir)/aica/audio.c'; fi`2.104 +2.105 +audio_null.o: aica/audio_null.c2.106 +@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT audio_null.o -MD -MP -MF "$(DEPDIR)/audio_null.Tpo" \2.107 +@am__fastdepCC_TRUE@ -c -o audio_null.o `test -f 'aica/audio_null.c' || echo '$(srcdir)/'`aica/audio_null.c; \2.108 +@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/audio_null.Tpo" "$(DEPDIR)/audio_null.Po"; \2.109 +@am__fastdepCC_TRUE@ else rm -f "$(DEPDIR)/audio_null.Tpo"; exit 1; \2.110 +@am__fastdepCC_TRUE@ fi2.111 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='aica/audio_null.c' object='audio_null.o' libtool=no @AMDEPBACKSLASH@2.112 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ depfile='$(DEPDIR)/audio_null.Po' tmpdepfile='$(DEPDIR)/audio_null.TPo' @AMDEPBACKSLASH@2.113 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@2.114 +@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o audio_null.o `test -f 'aica/audio_null.c' || echo '$(srcdir)/'`aica/audio_null.c2.115 +2.116 +audio_null.obj: aica/audio_null.c2.117 +@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT audio_null.obj -MD -MP -MF "$(DEPDIR)/audio_null.Tpo" \2.118 +@am__fastdepCC_TRUE@ -c -o audio_null.obj `if test -f 'aica/audio_null.c'; then $(CYGPATH_W) 'aica/audio_null.c'; else $(CYGPATH_W) '$(srcdir)/aica/audio_null.c'; fi`; \2.119 +@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/audio_null.Tpo" "$(DEPDIR)/audio_null.Po"; \2.120 +@am__fastdepCC_TRUE@ else rm -f "$(DEPDIR)/audio_null.Tpo"; exit 1; \2.121 +@am__fastdepCC_TRUE@ fi2.122 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='aica/audio_null.c' object='audio_null.obj' libtool=no @AMDEPBACKSLASH@2.123 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ depfile='$(DEPDIR)/audio_null.Po' tmpdepfile='$(DEPDIR)/audio_null.TPo' @AMDEPBACKSLASH@2.124 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@2.125 +@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o audio_null.obj `if test -f 'aica/audio_null.c'; then $(CYGPATH_W) 'aica/audio_null.c'; else $(CYGPATH_W) '$(srcdir)/aica/audio_null.c'; fi`2.126 +2.127 +audio_esd.o: aica/audio_esd.c2.128 +@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT audio_esd.o -MD -MP -MF "$(DEPDIR)/audio_esd.Tpo" \2.129 +@am__fastdepCC_TRUE@ -c -o audio_esd.o `test -f 'aica/audio_esd.c' || echo '$(srcdir)/'`aica/audio_esd.c; \2.130 +@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/audio_esd.Tpo" "$(DEPDIR)/audio_esd.Po"; \2.131 +@am__fastdepCC_TRUE@ else rm -f "$(DEPDIR)/audio_esd.Tpo"; exit 1; \2.132 +@am__fastdepCC_TRUE@ fi2.133 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='aica/audio_esd.c' object='audio_esd.o' libtool=no @AMDEPBACKSLASH@2.134 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ depfile='$(DEPDIR)/audio_esd.Po' tmpdepfile='$(DEPDIR)/audio_esd.TPo' @AMDEPBACKSLASH@2.135 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@2.136 +@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o audio_esd.o `test -f 'aica/audio_esd.c' || echo '$(srcdir)/'`aica/audio_esd.c2.137 +2.138 +audio_esd.obj: aica/audio_esd.c2.139 +@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT audio_esd.obj -MD -MP -MF "$(DEPDIR)/audio_esd.Tpo" \2.140 +@am__fastdepCC_TRUE@ -c -o audio_esd.obj `if test -f 'aica/audio_esd.c'; then $(CYGPATH_W) 'aica/audio_esd.c'; else $(CYGPATH_W) '$(srcdir)/aica/audio_esd.c'; fi`; \2.141 +@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/audio_esd.Tpo" "$(DEPDIR)/audio_esd.Po"; \2.142 +@am__fastdepCC_TRUE@ else rm -f "$(DEPDIR)/audio_esd.Tpo"; exit 1; \2.143 +@am__fastdepCC_TRUE@ fi2.144 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='aica/audio_esd.c' object='audio_esd.obj' libtool=no @AMDEPBACKSLASH@2.145 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ depfile='$(DEPDIR)/audio_esd.Po' tmpdepfile='$(DEPDIR)/audio_esd.TPo' @AMDEPBACKSLASH@2.146 +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@2.147 +@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o audio_esd.obj `if test -f 'aica/audio_esd.c'; then $(CYGPATH_W) 'aica/audio_esd.c'; else $(CYGPATH_W) '$(srcdir)/aica/audio_esd.c'; fi`2.148 +2.149 maple.o: maple/maple.c2.150 @am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT maple.o -MD -MP -MF "$(DEPDIR)/maple.Tpo" \2.151 @am__fastdepCC_TRUE@ -c -o maple.o `test -f 'maple/maple.c' || echo '$(srcdir)/'`maple/maple.c; \
3.1 --- /dev/null Thu Jan 01 00:00:00 1970 +00003.2 +++ b/src/bios.c Sun Jan 22 22:40:53 2006 +00003.3 @@ -0,0 +1,213 @@3.4 +/**3.5 + * $Id: bios.c,v 1.1 2006-01-22 22:40:53 nkeynes Exp $3.6 + *3.7 + * "Fake" BIOS functions, for operation without the actual BIOS.3.8 + *3.9 + * Copyright (c) 2005 Nathan Keynes.3.10 + *3.11 + * This program is free software; you can redistribute it and/or modify3.12 + * it under the terms of the GNU General Public License as published by3.13 + * the Free Software Foundation; either version 2 of the License, or3.14 + * (at your option) any later version.3.15 + *3.16 + * This program is distributed in the hope that it will be useful,3.17 + * but WITHOUT ANY WARRANTY; without even the implied warranty of3.18 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the3.19 + * GNU General Public License for more details.3.20 + */3.21 +3.22 +#include "dream.h"3.23 +#include "mem.h"3.24 +#include "bios.h"3.25 +#include "sh4/sh4core.h"3.26 +3.27 +#define COMMAND_QUEUE_LENGTH 163.28 +3.29 +/* TODO: Check if these are the real ATAPI command codes or not */3.30 +#define GD_CMD_PIOREAD 163.31 +#define GD_CMD_DMAREAD 173.32 +#define GD_CMD_GETTOC 183.33 +#define GD_CMD_GETTOC2 193.34 +#define GD_CMD_PLAY 203.35 +#define GD_CMD_PLAY2 213.36 +#define GD_CMD_PAUSE 223.37 +#define GD_CMD_RELEASE 233.38 +#define GD_CMD_INIT 243.39 +#define GD_CMD_SEEK 273.40 +#define GD_CMD_READ 283.41 +#define GD_CMD_STOP 333.42 +#define GD_CMD_GETSCD 343.43 +#define GD_CMD_GETSES 353.44 +3.45 +#define GD_CMD_STATUS_NONE 03.46 +#define GD_CMD_STATUS_ACTIVE 13.47 +#define GD_CMD_STATUS_DONE 23.48 +#define GD_CMD_STATUS_ABORT 33.49 +#define GD_CMD_STATUS_ERROR 43.50 +3.51 +#define GD_ERROR_OK 03.52 +#define GD_ERROR_NO_DISC 23.53 +#define GD_ERROR_DISC_CHANGE 63.54 +#define GD_ERROR_SYSTEM 13.55 +3.56 +3.57 +typedef struct gdrom_command {3.58 + int status;3.59 + uint32_t cmd_code;3.60 + char *data;3.61 + uint32_t result[4];3.62 +} *gdrom_command_t;3.63 +3.64 +static struct gdrom_command gdrom_cmd_queue[COMMAND_QUEUE_LENGTH];3.65 +3.66 +static struct bios_gdrom_status {3.67 + uint32_t status;3.68 + uint32_t disk_type;3.69 +} bios_gdrom_status;3.70 +3.71 +void bios_gdrom_run_command( gdrom_command_t cmd )3.72 +{3.73 + DEBUG( "BIOS GD command %d", cmd->cmd_code );3.74 + switch( cmd->cmd_code ) {3.75 + case GD_CMD_INIT:3.76 + /* *shrug* */3.77 + cmd->status = GD_CMD_STATUS_DONE;3.78 + break;3.79 + default:3.80 + cmd->status = GD_CMD_STATUS_ERROR;3.81 + cmd->result[0] = GD_ERROR_SYSTEM;3.82 + break;3.83 + }3.84 +}3.85 +3.86 +void bios_gdrom_init( void )3.87 +{3.88 + memset( &gdrom_cmd_queue, 0, sizeof(gdrom_cmd_queue) );3.89 +}3.90 +3.91 +uint32_t bios_gdrom_enqueue( uint32_t cmd, char *ptr )3.92 +{3.93 + int i;3.94 + for( i=0; i<COMMAND_QUEUE_LENGTH; i++ ) {3.95 + if( gdrom_cmd_queue[i].status != GD_CMD_STATUS_ACTIVE ) {3.96 + gdrom_cmd_queue[i].status = GD_CMD_STATUS_ACTIVE;3.97 + gdrom_cmd_queue[i].cmd_code = cmd;3.98 + gdrom_cmd_queue[i].data = ptr;3.99 + return i;3.100 + }3.101 + }3.102 + return -1;3.103 +}3.104 +3.105 +void bios_gdrom_run_queue( void )3.106 +{3.107 + int i;3.108 + for( i=0; i<COMMAND_QUEUE_LENGTH; i++ ) {3.109 + if( gdrom_cmd_queue[i].status == GD_CMD_STATUS_ACTIVE ) {3.110 + bios_gdrom_run_command( &gdrom_cmd_queue[i] );3.111 + }3.112 + }3.113 +}3.114 +3.115 +gdrom_command_t bios_gdrom_get_command( uint32_t id )3.116 +{3.117 + if( id >= COMMAND_QUEUE_LENGTH ||3.118 + gdrom_cmd_queue[id].status == GD_CMD_STATUS_NONE )3.119 + return NULL;3.120 + return &gdrom_cmd_queue[id];3.121 +}3.122 +3.123 +void bios_install( void )3.124 +{3.125 + bios_gdrom_init();3.126 + sh4_write_long( 0x8C0000B0, 0xFFFFFFB0 );3.127 + sh4_write_long( 0x8C0000B4, 0xFFFFFFB4 );3.128 + sh4_write_long( 0x8C0000B8, 0xFFFFFFB8 );3.129 + sh4_write_long( 0x8C0000BC, 0xFFFFFFBC );3.130 + sh4_write_long( 0x8C0000E0, 0xFFFFFFE0 );3.131 +}3.132 +3.133 +/**3.134 + * Syscall list courtesy of Marcus Comstedt3.135 + */3.136 +3.137 +void bios_syscall( uint32_t syscallid )3.138 +{3.139 + gdrom_command_t cmd;3.140 +3.141 + switch( syscallid ) {3.142 + case 0xB0: /* sysinfo */3.143 + break;3.144 + case 0xB4: /* Font */3.145 + break;3.146 + case 0xB8: /* Flash */3.147 + break;3.148 + case 0xBC: /* Misc/GD-Rom */3.149 + switch( sh4r.r[6] ) {3.150 + case 0: /* GD-Rom */3.151 + switch( sh4r.r[7] ) {3.152 + case 0: /* Send command */3.153 + if( sh4r.r[5] == 0 )3.154 + sh4r.r[0] = bios_gdrom_enqueue( sh4r.r[4], NULL );3.155 + else3.156 + sh4r.r[0] = bios_gdrom_enqueue( sh4r.r[4], mem_get_region(sh4r.r[5]) );3.157 + break;3.158 + case 1: /* Check command */3.159 + cmd = bios_gdrom_get_command( sh4r.r[4] );3.160 + if( cmd == NULL ) {3.161 + sh4r.r[0] = GD_CMD_STATUS_NONE;3.162 + } else {3.163 + sh4r.r[0] = cmd->status;3.164 + if( cmd->status == GD_CMD_STATUS_ERROR &&3.165 + sh4r.r[5] != 0 ) {3.166 + mem_copy_to_sh4( sh4r.r[5], &cmd->result, sizeof(cmd->result) );3.167 + }3.168 + }3.169 + break;3.170 + case 2: /* Mainloop */3.171 + bios_gdrom_run_queue();3.172 + break;3.173 + case 3: /* Init */3.174 + bios_gdrom_init();3.175 + break;3.176 + case 4: /* Drive status */3.177 + if( sh4r.r[4] != 0 ) {3.178 + mem_copy_to_sh4( sh4r.r[4], &bios_gdrom_status,3.179 + sizeof(bios_gdrom_status) );3.180 + }3.181 + sh4r.r[0] = 0;3.182 + break;3.183 + case 8: /* Abort command */3.184 + cmd = bios_gdrom_get_command( sh4r.r[4] );3.185 + if( cmd == NULL || cmd->status != GD_CMD_STATUS_ACTIVE ) {3.186 + sh4r.r[0] = -1;3.187 + } else {3.188 + cmd->status = GD_CMD_STATUS_ABORT;3.189 + sh4r.r[0] = 0;3.190 + }3.191 + break;3.192 + case 9: /* Reset */3.193 + break;3.194 + case 10: /* Set mode */3.195 + sh4r.r[0] = 0;3.196 + break;3.197 + }3.198 + break;3.199 + case -1: /* Misc */3.200 + break;3.201 + default: /* ??? */3.202 + break;3.203 + }3.204 + break;3.205 + case 0xE0: /* Menu */3.206 + switch( sh4r.r[7] ) {3.207 + case 0:3.208 + WARN( "Entering main program" );3.209 + break;3.210 + case 1:3.211 + WARN( "Program aborted to DC menu");3.212 + dreamcast_stop();3.213 + break;3.214 + }3.215 + }3.216 +}
4.1 --- /dev/null Thu Jan 01 00:00:00 1970 +00004.2 +++ b/src/bios.h Sun Jan 22 22:40:53 2006 +00004.3 @@ -0,0 +1,45 @@4.4 +/**4.5 + * $Id: bios.h,v 1.1 2006-01-22 22:40:53 nkeynes Exp $4.6 + *4.7 + * "Fake" BIOS support, to allow basic functionality without the BIOS4.8 + * actually being present.4.9 + *4.10 + * Copyright (c) 2005 Nathan Keynes.4.11 + *4.12 + * This program is free software; you can redistribute it and/or modify4.13 + * it under the terms of the GNU General Public License as published by4.14 + * the Free Software Foundation; either version 2 of the License, or4.15 + * (at your option) any later version.4.16 + *4.17 + * This program is distributed in the hope that it will be useful,4.18 + * but WITHOUT ANY WARRANTY; without even the implied warranty of4.19 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the4.20 + * GNU General Public License for more details.4.21 + */4.22 +#ifndef dream_bios_H4.23 +#define dream_bios_H 14.24 +4.25 +#include <stdint.h>4.26 +#include <glib/gtypes.h>4.27 +4.28 +#ifdef __cplusplus4.29 +extern "C" {4.30 +#endif4.31 +4.32 +/**4.33 + * Execute a BIOS syscall identified by a syscall ID (currently the last4.34 + * byte of the vector).4.35 + */4.36 +void bios_syscall( uint32_t syscallid );4.37 +4.38 +/**4.39 + * Install the BIOS emu hack into ram (sets the vectors at 8C0000B0 through4.40 + * 8C0000C0)4.41 + */4.42 +void bios_install( void );4.43 +4.44 +4.45 +#ifdef __cplusplus4.46 +}4.47 +#endif4.48 +#endif
5.1 --- a/src/main.c Sun Jan 22 22:40:05 2006 +00005.2 +++ b/src/main.c Sun Jan 22 22:40:53 2006 +00005.3 @@ -1,5 +1,5 @@5.4 /**5.5 - * $Id: main.c,v 1.11 2006-01-16 11:18:29 nkeynes Exp $5.6 + * $Id: main.c,v 1.12 2006-01-22 22:40:53 nkeynes Exp $5.7 *5.8 * Main program, initializes dreamcast and gui, then passes control off to5.9 * the gtk main loop (currently).5.10 @@ -27,15 +27,17 @@5.11 #include <gnome.h>5.12 #include "gui/gui.h"5.13 #include "dream.h"5.14 +#include "bios.h"5.15 #include "dreamcast.h"5.17 #define S3M_PLAYER "s3mplay.bin"5.19 -char *option_list = "a:s:A:V:ph";5.20 +char *option_list = "a:s:A:V:phb";5.21 char *aica_program = NULL;5.22 char *s3m_file = NULL;5.23 gboolean start_immediately = FALSE;5.24 gboolean headless = FALSE;5.25 +gboolean without_bios = FALSE;5.27 int main (int argc, char *argv[])5.28 {5.29 @@ -61,6 +63,9 @@5.30 case 'p': /* Start immediately */5.31 start_immediately = TRUE;5.32 break;5.33 + case 'b': /* No BIOS */5.34 + without_bios = TRUE;5.35 + break;5.36 case 'h': /* Headless */5.37 headless = TRUE;5.38 break;5.39 @@ -87,6 +92,9 @@5.40 }5.41 }5.43 + if( without_bios ) {5.44 + bios_install();5.45 + }5.46 INFO( "DreamOn! ready..." );5.47 if( start_immediately )5.48 dreamcast_run();
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