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authornyan <nyan@FreeBSD.org>2002-01-18 09:00:38 +0000
committernyan <nyan@FreeBSD.org>2002-01-18 09:00:38 +0000
commit677e0da5fb33f62e89a7a84a694ac8bc6e58fb4e (patch)
tree00b87f79f087fc453a58647aec35bfd29690a250 /sys/boot
parent72dec2975ab33c03cdb598fd288ea994f3960639 (diff)
downloadFreeBSD-src-677e0da5fb33f62e89a7a84a694ac8bc6e58fb4e.zip
FreeBSD-src-677e0da5fb33f62e89a7a84a694ac8bc6e58fb4e.tar.gz
Added kgzldr for pc98.
crt.s is based on btx.s.
Diffstat (limited to 'sys/boot')
-rw-r--r--sys/boot/pc98/Makefile2
-rw-r--r--sys/boot/pc98/kgzldr/Makefile37
-rw-r--r--sys/boot/pc98/kgzldr/crt.s118
3 files changed, 156 insertions, 1 deletions
diff --git a/sys/boot/pc98/Makefile b/sys/boot/pc98/Makefile
index b86e09f..d63cb4c 100644
--- a/sys/boot/pc98/Makefile
+++ b/sys/boot/pc98/Makefile
@@ -1,5 +1,5 @@
# $FreeBSD$
-SUBDIR= btx boot0 boot0.5 boot2 libpc98 loader
+SUBDIR= btx boot0 boot0.5 boot2 kgzldr libpc98 loader
.include <bsd.subdir.mk>
diff --git a/sys/boot/pc98/kgzldr/Makefile b/sys/boot/pc98/kgzldr/Makefile
new file mode 100644
index 0000000..8910498
--- /dev/null
+++ b/sys/boot/pc98/kgzldr/Makefile
@@ -0,0 +1,37 @@
+# $FreeBSD$
+
+PROG= kgzldr.o
+SRCS= start.s boot.c inflate.c lib.c crt.s sio.s
+CFLAGS= -fno-builtin
+.if ${OBJFORMAT} == aout
+CFLAGS+=-O2
+.else
+CFLAGS+=-Os
+.endif
+CFLAGS+=-DKZIP
+LDFLAGS=-nostdlib -static -r
+NOMAN=
+BINDIR= /usr/lib
+BINMODE=444
+STRIP=
+.PATH: ${.CURDIR}/../../../kern
+
+.PATH: ${.CURDIR}/../../i386/kgzldr
+AFLAGS+=--defsym PC98=1
+
+M4?= m4
+M4FLAGS=-DOBJFORMAT=${OBJFORMAT}
+
+BOOT_COMCONSOLE_PORT?= 0x238
+M4FLAGS+=-DSIOPRT=${BOOT_COMCONSOLE_PORT}
+
+all: kgzldr.o
+
+kgzldr.o: ${OBJS}
+ ${CC} ${LDFLAGS} -o ${.TARGET} ${OBJS}
+
+.s.o:
+ (cd ${.CURDIR}; ${M4} ${M4FLAGS} ../../i386/kgzldr/kgzldr.m4 ${.IMPSRC}) |\
+ ${AS} ${AFLAGS} -o ${.TARGET}
+
+.include <bsd.prog.mk>
diff --git a/sys/boot/pc98/kgzldr/crt.s b/sys/boot/pc98/kgzldr/crt.s
new file mode 100644
index 0000000..466ec29
--- /dev/null
+++ b/sys/boot/pc98/kgzldr/crt.s
@@ -0,0 +1,118 @@
+#
+# Copyright (c) 1999 Global Technology Associates, Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
+# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# From: btx.s 1.10 1999/02/25 16:27:41 rnordier
+# $FreeBSD$
+#
+
+# Screen defaults and assumptions.
+
+.`ifdef' PC98
+ .set SCR_MAT,0xe1 # Mode/attribute
+.else
+ .set SCR_MAT,0x7 # Mode/attribute
+.endif
+ .set SCR_COL,0x50 # Columns per row
+ .set SCR_ROW,0x19 # Rows per screen
+
+# BIOS Data Area locations.
+
+.`ifdef' PC98
+ .set BDA_POS,0x53e # Cursor position
+.else
+ .set BDA_SCR,0x449 # Video mode
+ .set BDA_POS,0x450 # Cursor position
+.endif
+
+ .globl _(crt_putchr)
+
+# void crt_putchr(int c)
+
+_(crt_putchr): movb 0x4(%esp,1),%al # Get character
+ pusha # Save
+ xorl %ecx,%ecx # Zero for loops
+ movb $SCR_MAT,%ah # Mode/attribute
+ movl $BDA_POS,%ebx # BDA pointer
+ movw (%ebx),%dx # Cursor position
+.`ifdef' PC98
+ movl $0xa0000,%edi
+.else
+ movl $0xb8000,%edi # Regen buffer (color)
+ cmpb %ah,BDA_SCR-BDA_POS(%ebx) # Mono mode?
+ jne crt_putchr.1 # No
+ xorw %di,%di # Regen buffer (mono)
+.endif
+crt_putchr.1: cmpb $0xa,%al # New line?
+ je crt_putchr.2 # Yes
+.`ifdef' PC98
+ movw %dx,%cx
+ movb %al,(%edi,%ecx,1) # Write char
+ addl $0x2000,%ecx
+ movb %ah,(%edi,%ecx,1) # Write attr
+ addw $0x02,%dx
+ jmp putchr.3
+putchr.2: movw %dx,%ax
+ movb $SCR_COL*2,%dl
+ div %dl
+ incb %al
+ mul %dl
+ movw %ax,%dx
+putchr.3: cmpw $SCR_ROW*SCR_COL*2,%dx
+.else
+ xchgl %eax,%ecx # Save char
+ movb $SCR_COL,%al # Columns per row
+ mulb %dh # * row position
+ addb %dl,%al # + column
+ adcb $0x0,%ah # position
+ shll %eax # * 2
+ xchgl %eax,%ecx # Swap char, offset
+ movw %ax,(%edi,%ecx,1) # Write attr:char
+ incl %edx # Bump cursor
+ cmpb $SCR_COL,%dl # Beyond row?
+ jb crt_putchr.3 # No
+crt_putchr.2: xorb %dl,%dl # Zero column
+ incb %dh # Bump row
+crt_putchr.3: cmpb $SCR_ROW,%dh # Beyond screen?
+.endif
+ jb crt_putchr.4 # No
+ leal 2*SCR_COL(%edi),%esi # New top line
+ movw $(SCR_ROW-1)*SCR_COL/2,%cx # Words to move
+ rep # Scroll
+ movsl # screen
+ movb $' ',%al # Space
+.`ifdef' PC98
+ xorb %ah,%ah
+.endif
+ movb $SCR_COL,%cl # Columns to clear
+ rep # Clear
+ stosw # line
+.`ifdef' PC98
+ movw $(SCR_ROW-1)*SCR_COL*2,%dx
+.else
+ movb $SCR_ROW-1,%dh # Bottom line
+.endif
+crt_putchr.4: movw %dx,(%ebx) # Update position
+ popa # Restore
+ ret # To caller
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