[kernel] Enhance buildimages.sh and emulator scripts, add DMASEGEND in config.h

buildimages.sh

@@ -1,5 +1,7 @@
 #
 # This script is used to build all ELKS images outside Github CI
+# Usage: ./buildimages [fast|ibm]
+#   The 'fast' option skips initial make clean, pc98-1440 and ibm-all images uncompressed
 set -x
 set -e
 
@@ -22,41 +24,83 @@ build_pc98()
     cp pc98-1232.config .config
     make
     mv image/fd1232.img image/fd1232-pc98.img
+}
 
+build_pc98_fast()
+{
+    cleanup
+    cp pc98-1232-nc.config .config
+    make
+    mv image/fd1232.img image/fd1232-pc98.img
+}
+
+build_pc98_1440()
+{
     cleanup
     cp pc98-1440.config .config
     make
     mv image/fd1440.img image/fd1440-pc98.img
 }
 
-# build 8018X image
-build_8018x()
+# build 8018X rom image
+build_rom_8018x()
 {
     cleanup
     cp 8018x.config .config
     make
+    cp -p elks/arch/i86/boot/Image image/rom-8018x.bin
     mv image/romfs.bin image/romfs-8018x.bin
 }
 
+# build 8088 rom image
+build_rom_8088()
+{
+    cleanup
+    cp emu86-rom-full.config .config
+    make
+    cp -p elks/arch/i86/boot/Image image/rom-8088.bin
+    mv image/romfs.bin image/romfs-8088.bin
+}
+
 # build IBM PC versions
 build_ibm()
 {
     cleanup
     cp ibmpc-1440.config .config
-    #cp ibmpc-1440-nc.config .config
     make
+}
+
+build_ibm_fast()
+{
+    cleanup
+    cp ibmpc-1440-nc.config .config
+    make
+}
 
+build_ibm_all()
+{
     cd image
     make images
     cd ..
 }
 
+# quick kernel-only and specific apps build for dosbox, emu86.sh and qemu.sh testing
+if [ "$1" == "fast" ]; then
+    build_pc98_fast
+    build_rom_8088
+    build_ibm_fast
+    exit
+fi
+
+if [ "$1" == "ibm" ]; then
+    build_ibm_fast
+    exit
+fi
+
+# full (re)build including C library and all applications
 make clean
-build_ibm
 build_pc98
 build_8018x
-
-cp ibmpc-1440.config .config
-#cp ibmpc-1440-nc.config .config
-cleanup
-make
+build_8088
+build_ibm
+build_ibm_all

dosbox.sh

@@ -0,0 +1,17 @@
+# Helper to run PC98 images in DosBoxX (dosbox-x-sdl2)
+#
+
+# 1232k image from './buildimages.sh fast'
+exec ./dosbox-x-sdl2 -set machine=pc98 -set "dosbox quit warning=false" -fastlaunch -c "boot image/fd1232-pc98.img"
+
+# just-built 1232k image
+#exec ./dosbox-x-sdl2 -set machine=pc98 -set "dosbox quit warning=false" -fastlaunch -c "boot image/fd1232.img"
+
+# 1440k image
+#exec ./dosbox-x-sdl2 -set machine=pc98 -set "dosbox quit warning=false" -fastlaunch -c "boot image/fd1440-pc98.img"
+
+# 1440k IBM image
+#exec ./dosbox-x-sdl2 -set "dosbox quit warning=false" -fastlaunch -c "boot image/fd1440.img"
+
+# 2880k IBM image
+#exec ./dosbox-x-sdl2 -set "dosbox quit warning=false" -fastlaunch -c "boot image/fd2880-fat.img"

elks/include/linuxmt/config.h

@@ -7,6 +7,8 @@
 /*
  * Compile-time configuration
  */
+#define UTS_SYSNAME "ELKS"                      /* uname system name */
+#define UTS_NODENAME "elks"                     /* someday set by sethostname() */
 
 #define CONFIG_MSDOS_PARTITION  1               /* support DOS HD partitions */
 #define CONFIG_FS_DEV           1               /* support FAT /dev folder */
@@ -28,7 +30,7 @@
 #define SETUP_PART_OFFSETLO     setupw(0x1e2)   /* partition offset low word */
 #define SETUP_PART_OFFSETHI     setupw(0x1e4)   /* partition offset high word */
 #ifdef CONFIG_ROMCODE
-#define SYS_CAPS        (CAP_PC_AT)
+#define SYS_CAPS                (CAP_PC_AT)
 #endif
 #define UTS_MACHINE             "ibmpc i8086"
 
@@ -101,66 +103,48 @@
 #define DEF_SETUPSEG    DEF_INITSEG + 0x20
 #define DEF_SYSMAX      0x2F00  /* maximum system size (=.text+.fartext+.data) */
 
-/* DMASEG is a bounce buffer of 1K (=BLOCKSIZE) below the first 64K boundary (=0x1000:0)
- * for use with the old 8237 DMA controller OR a disk track buffer of 9K (18 ectors).
- * Following that is the kernel code and data at REL_INITSYS.
+/* Segmemnt DMASEG up to DMASEGEND is used as a bounce buffer of at least 1K (=BLOCKSIZE)
+ * below the first 64K boundary (=0x1000:0) for use with the old 8237 DMA controller.
+ * If floppy track caching is enabled, this area is also used for the track buffer
+ * for direct DMA access using multisector I/O.
+ * Following DMASEGEND is the kernel code and data at REL_SYSSEG.
  */
 
-#ifdef CONFIG_ROMCODE
-#if defined(CONFIG_BLK_DEV_BFD) || defined(CONFIG_BLK_DEV_BHD)  /* BIOS disk driver*/
-#define DMASEG          0x80  /* 0x400 bytes floppy sector buffer */
-#ifdef CONFIG_TRACK_CACHE     /* floppy track buffer in low mem */
-#define DMASEGSZ      0x2400  /* SECTOR_SIZE * 18 (9216) */
-#define KERNEL_DATA    0x2C0  /* kernel data segment */
+#ifdef CONFIG_TRACK_CACHE           /* floppy track buffer in low mem */
+#define DMASEGSZ        0x2400      /* SECTOR_SIZE * 18 (9216) */
 #else
-#define DMASEGSZ       0x040  /* BLOCK_SIZE (1024) */
-#define KERNEL_DATA    0x0C0  /* kernel data segment */
+#define DMASEGSZ        0x0400      /* BLOCK_SIZE (1024) */
 #endif
+#define DMASEGEND       (DMASEG+(DMASEGSZ>>4))
+
+#ifdef CONFIG_ROMCODE
+#if defined(CONFIG_BLK_DEV_BFD) || defined(CONFIG_BLK_DEV_BHD)  /* BIOS disk driver*/
+#define DMASEG          0x80        /* 0x400 bytes floppy sector buffer */
+#define KERNEL_DATA     DMASEGEND   /* kernel data segment */
 #else
-#define KERNEL_DATA     0x80  /* kernel data segment */
+#define KERNEL_DATA     0x080       /* kernel data segment */
 #endif
 #define SETUP_DATA      CONFIG_ROM_SETUP_DATA
 #endif
 
-
 #if (defined(CONFIG_ARCH_IBMPC) || defined(CONFIG_ARCH_8018X)) && !defined(CONFIG_ROMCODE)
 /* Define segment locations of low memory, must not overlap */
-#define DEF_OPTSEG      0x50  /* 0x200 bytes boot options*/
-#define OPTSEGSZ       0x200  /* max size of /bootopts file (1K max) */
-#define REL_INITSEG     0x70  /* 0x200 bytes setup data */
-#define DMASEG          0x90  /* 0x400 bytes floppy sector buffer */
-#ifdef CONFIG_TRACK_CACHE     /* floppy track buffer in low mem */
-#define DMASEGSZ      0x2400  /* SECTOR_SIZE * 18 (9216) */
-#define REL_SYSSEG     0x2D0  /* kernel code segment */
-#else
-#define DMASEGSZ 0x0400       /* BLOCK_SIZE (1024) */
-#define REL_SYSSEG     0x0D0  /* kernel code segment */
-#endif
+#define OPTSEGSZ        0x200       /* max size of /bootopts file (512 bytes max) */
+#define DEF_OPTSEG      0x50        /* 0x200 bytes boot options at lowest usable ram */
+#define REL_INITSEG     0x70        /* 0x200 bytes setup data */
+#define DMASEG          0x90        /* start of floppy sector buffer */
+#define REL_SYSSEG      DMASEGEND   /* kernel code segment */
 #define SETUP_DATA      REL_INITSEG
 #endif
 
-
 #if defined(CONFIG_ARCH_PC98) && !defined(CONFIG_ROMCODE)
 /* Define segment locations of low memory, must not overlap */
-#define DEF_OPTSEG      0x60  /* 0x200 bytes boot options*/
-#define OPTSEGSZ       0x200  /* max size of /bootopts file (1K max) */
-#define REL_INITSEG     0x80  /* 0x200 bytes setup data */
-#define DMASEG          0xA0  /* 0x400 bytes floppy sector buffer */
-#ifdef CONFIG_TRACK_CACHE     /* floppy track buffer in low mem */
-#define DMASEGSZ      0x2400  /* SECTOR_SIZE * 18 (9216) > SECTOR_SIZE * 8 (8192) */
-#define REL_SYSSEG     0x2E0  /* kernel code segment */
-#else
-#define DMASEGSZ      0x0400  /* BLOCK_SIZE (1024) */
-#define REL_SYSSEG     0x0E0  /* kernel code segment */
-#endif
+#define OPTSEGSZ        0x200       /* max size of /bootopts file (512 bytes max) */
+#define DEF_OPTSEG      0x60        /* 0x200 bytes boot options at lowest usable ram */
+#define REL_INITSEG     0x80        /* 0x200 bytes setup data */
+#define DMASEG          0xA0        /* start of floppy sector buffer */
+#define REL_SYSSEG      DMASEGEND   /* kernel code segment */
 #define SETUP_DATA      REL_INITSEG
 #endif
 
-/* Defines for what uname() should return.
- * The definitions for UTS_RELEASE and UTS_VERSION are now passed as
- * kernel compilation parameters, and should only be used by elks/kernel/version.c
- */
-#define UTS_SYSNAME "ELKS"
-#define UTS_NODENAME "elks"             /* someday set by sethostname() */
-
 #endif

emu86.sh

@@ -6,11 +6,16 @@
 
 # For ELKS ROM Configuration:
 # ELKS must be configured minimally with 'cp emu86-rom.config .config'
+#   or use './buildimages.sh fast'
 # This uses headless console, HLT on idle, ROM filesystem.
 
 # Kernel image @ segment 0xE000 (as 64K BIOS extension)
 # Root filesystem @ segment 0x8000 (assumes 512K RAM & 512K ROM)
 
+# 8088 version using emu-rom-full.config from './buildimages.sh fast'
+exec emu86 -w 0xe0000 -f image/rom-8088.bin -w 0x80000 -f image/romfs-8088.bin ${1+"$@"}
+
+# just built rom version using 'make'
 exec emu86 -w 0xe0000 -f elks/arch/i86/boot/Image -w 0x80000 -f image/romfs.bin ${1+"$@"}
 
 # For ELKS Full ROM Configuration:

image/Make.image

@@ -143,3 +143,4 @@ romfs:
 	-rm -f romfs.devices
 	$(MAKE) -f Make.devices "MKDEV=echo >> romfs.devices"
 	mkromfs -d romfs.devices $(DESTDIR)
+	-rm -f romfs.devices

pc98-1232-nc.config

@@ -0,0 +1,130 @@
+#
+# Automatically generated by make menuconfig: don't edit.
+#
+
+
+#
+# Kernel & Hardware
+#
+
+
+#
+# System
+#
+
+# CONFIG_ARCH_IBMPC is not set
+# CONFIG_ARCH_8018X is not set
+CONFIG_ARCH_PC98=y
+
+#
+# Kernel settings
+#
+
+CONFIG_BOOTOPTS=y
+# CONFIG_ASYNCIO is not set
+CONFIG_CPU_USAGE=y
+CONFIG_TIME_RTC_LOCALTIME=y
+CONFIG_TIME_TZ="JST-9"
+# CONFIG_TRACE is not set
+# CONFIG_TIMER_INT0F is not set
+# CONFIG_TIMER_INT1C is not set
+CONFIG_FARTEXT_KERNEL=y
+
+#
+# Networking Support
+#
+
+CONFIG_SOCKET=y
+# CONFIG_NANO is not set
+CONFIG_INET=y
+# CONFIG_UNIX is not set
+
+#
+# Filesystem Support
+#
+
+CONFIG_MINIX_FS=y
+# CONFIG_ROMFS_FS is not set
+CONFIG_FS_FAT=y
+CONFIG_FS_EXTERNAL_BUFFER=y
+CONFIG_FS_NR_EXT_BUFFERS=64
+# CONFIG_FS_XMS_BUFFER is not set
+CONFIG_EXEC_COMPRESS=y
+CONFIG_EXEC_OS2=y
+CONFIG_EXEC_MMODEL=y
+
+#
+# Drivers
+#
+
+
+#
+# Block device drivers
+#
+
+CONFIG_BLK_DEV_BFD=y
+# CONFIG_BLK_DEV_FD is not set
+CONFIG_TRACK_CACHE=y
+# CONFIG_BLK_DEV_BFD_HARD is not set
+CONFIG_BLK_DEV_BHD=y
+# CONFIG_IDE_PROBE is not set
+# CONFIG_BLK_DEV_RAM is not set
+CONFIG_BLK_DEV_SSD_NONE=y
+CONFIG_BLK_DEV_CHAR=y
+
+#
+# Character device drivers
+#
+
+CONFIG_CONSOLE_DIRECT=y
+# CONFIG_CONSOLE_BIOS is not set
+# CONFIG_CONSOLE_8018X is not set
+# CONFIG_CONSOLE_HEADLESS is not set
+# CONFIG_KEYBOARD_SCANCODE is not set
+# CONFIG_CONSOLE_SERIAL is not set
+CONFIG_EMUL_ANSI=y
+# CONFIG_KEYMAP_BE is not set
+# CONFIG_KEYMAP_DE is not set
+# CONFIG_KEYMAP_DV is not set
+# CONFIG_KEYMAP_ES is not set
+# CONFIG_KEYMAP_FR is not set
+# CONFIG_KEYMAP_IT is not set
+# CONFIG_KEYMAP_SE is not set
+# CONFIG_KEYMAP_UK is not set
+CONFIG_KEYMAP_US=y
+CONFIG_CHAR_DEV_RS=y
+CONFIG_CHAR_DEV_LP=y
+CONFIG_CHAR_DEV_MEM=y
+CONFIG_PSEUDO_TTY=y
+
+#
+# Network device drivers
+#
+
+# CONFIG_ETH is not set
+
+#
+# Userland
+#
+
+CONFIG_APPS_BY_IMAGESZ=y
+CONFIG_APPS_1232K=y
+# CONFIG_APPS_FTRACE is not set
+# CONFIG_APP_OTHER is not set
+# CONFIG_APP_TEST is not set
+# CONFIG_APP_MAN_PAGES is not set
+# CONFIG_SYS_DEFSHELL_SASH is not set
+# CONFIG_SYS_NO_BININIT is not set
+
+#
+# Target image
+#
+
+# CONFIG_IMG_MINIX is not set
+CONFIG_IMG_FAT=y
+# CONFIG_IMG_ROM is not set
+CONFIG_IMG_FD1232=y
+CONFIG_IMG_DEV=y
+CONFIG_IMG_BOOT=y
+# CONFIG_APPS_COMPRESS is not set
+# CONFIG_IMG_EXTRA_IMAGES is not set

qemu.sh

@@ -112,10 +112,10 @@ NET="-netdev user,id=mynet,$FWD -device ne2k_isa,irq=12,netdev=mynet"
 # Enable PC-Speaker here:
 #AUDIO="-audiodev pa,id=speaker -machine pcspk-audiodev=speaker"
 
-UNAME=`uname -a`
+UNAME=`uname`
 
 # Determine display type ("Darwin" = OSX)
-[ $UNAME != 'Darwin' ] && QDISPLAY="-display sdl"
+[ "$UNAME" != 'Darwin' ] && QDISPLAY="-display sdl"
 
 # Configure QEMU as pure ISA system