Index: head/stand/i386/btx/lib/btxv86.s =================================================================== --- head/stand/i386/btx/lib/btxv86.s (revision 340989) +++ head/stand/i386/btx/lib/btxv86.s (nonexistent) @@ -1,85 +0,0 @@ -# -# Copyright (c) 1998 Robert Nordier -# All rights reserved. -# -# Redistribution and use in source and binary forms are freely -# permitted provided that the above copyright notice and this -# paragraph and the following disclaimer are duplicated in all -# such forms. -# -# This software is provided "AS IS" and without any express or -# implied warranties, including, without limitation, the implied -# warranties of merchantability and fitness for a particular -# purpose. -# - -# $FreeBSD$ - -# -# BTX V86 interface. -# - -# -# Globals. -# - .global __v86int -# -# Fields in V86 interface structure. -# - .set V86_CTL,0x0 # Control flags - .set V86_ADDR,0x4 # Int number/address - .set V86_ES,0x8 # V86 ES - .set V86_DS,0xc # V86 DS - .set V86_FS,0x10 # V86 FS - .set V86_GS,0x14 # V86 GS - .set V86_EAX,0x18 # V86 EAX - .set V86_ECX,0x1c # V86 ECX - .set V86_EDX,0x20 # V86 EDX - .set V86_EBX,0x24 # V86 EBX - .set V86_EFL,0x28 # V86 eflags - .set V86_EBP,0x2c # V86 EBP - .set V86_ESI,0x30 # V86 ESI - .set V86_EDI,0x34 # V86 EDI -# -# Other constants. -# - .set INT_V86,0x31 # Interrupt number - .set SIZ_V86,0x38 # Size of V86 structure -# -# V86 interface function. -# -__v86int: popl __v86ret # Save return address - pushl $__v86 # Push pointer - call __v86_swap # Load V86 registers - int $INT_V86 # To BTX - call __v86_swap # Load user registers - addl $0x4,%esp # Discard pointer - pushl __v86ret # Restore return address - ret # To user -# -# Swap V86 and user registers. -# -__v86_swap: xchgl %ebp,0x4(%esp,1) # Swap pointer, EBP - xchgl %eax,V86_EAX(%ebp) # Swap EAX - xchgl %ecx,V86_ECX(%ebp) # Swap ECX - xchgl %edx,V86_EDX(%ebp) # Swap EDX - xchgl %ebx,V86_EBX(%ebp) # Swap EBX - pushl %eax # Save - pushf # Put eflags - popl %eax # in EAX - xchgl %eax,V86_EFL(%ebp) # Swap - pushl %eax # Put EAX - popf # in eflags - movl 0x8(%esp,1),%eax # Load EBP - xchgl %eax,V86_EBP(%ebp) # Swap - movl %eax,0x8(%esp,1) # Save EBP - popl %eax # Restore - xchgl %esi,V86_ESI(%ebp) # Swap ESI - xchgl %edi,V86_EDI(%ebp) # Swap EDI - xchgl %ebp,0x4(%esp,1) # Swap pointer, EBP - ret # To caller -# -# V86 interface structure. -# - .comm __v86,SIZ_V86 - .comm __v86ret,4 Property changes on: head/stand/i386/btx/lib/btxv86.s ___________________________________________________________________ Deleted: svn:keywords ## -1 +0,0 ## -FreeBSD=%H \ No newline at end of property Index: head/stand/i386/btx/lib/btxsys.s =================================================================== --- head/stand/i386/btx/lib/btxsys.s (revision 340989) +++ head/stand/i386/btx/lib/btxsys.s (nonexistent) @@ -1,40 +0,0 @@ -# -# Copyright (c) 1998 Robert Nordier -# All rights reserved. -# -# Redistribution and use in source and binary forms are freely -# permitted provided that the above copyright notice and this -# paragraph and the following disclaimer are duplicated in all -# such forms. -# -# This software is provided "AS IS" and without any express or -# implied warranties, including, without limitation, the implied -# warranties of merchantability and fitness for a particular -# purpose. -# - -# $FreeBSD$ - -# -# BTX system calls. -# - -# -# Globals. -# - .global __exit - .global __exec -# -# Constants. -# - .set INT_SYS,0x30 # Interrupt number -# -# System call: exit -# -__exit: xorl %eax,%eax # BTX system - int $INT_SYS # call 0x0 -# -# System call: exec -# -__exec: movl $0x1,%eax # BTX system - int $INT_SYS # call 0x1 Property changes on: head/stand/i386/btx/lib/btxsys.s ___________________________________________________________________ Deleted: svn:keywords ## -1 +0,0 ## -FreeBSD=%H \ No newline at end of property Index: head/stand/i386/btx/lib/Makefile =================================================================== --- head/stand/i386/btx/lib/Makefile (revision 340989) +++ head/stand/i386/btx/lib/Makefile (revision 340990) @@ -1,11 +1,11 @@ # $FreeBSD$ .include PROG= crt0.o INTERNALPROG= -SRCS= btxcsu.S btxsys.s btxv86.s +SRCS= btxcsu.S btxsys.S btxv86.S CFLAGS+=-I${BOOTSRC}/i386/common LDFLAGS+=-Wl,-r .include Index: head/stand/i386/btx/lib/btxsys.S =================================================================== --- head/stand/i386/btx/lib/btxsys.S (nonexistent) +++ head/stand/i386/btx/lib/btxsys.S (revision 340990) @@ -0,0 +1,40 @@ +# +# Copyright (c) 1998 Robert Nordier +# All rights reserved. +# +# Redistribution and use in source and binary forms are freely +# permitted provided that the above copyright notice and this +# paragraph and the following disclaimer are duplicated in all +# such forms. +# +# This software is provided "AS IS" and without any express or +# implied warranties, including, without limitation, the implied +# warranties of merchantability and fitness for a particular +# purpose. +# + +# $FreeBSD$ + +# +# BTX system calls. +# + +# +# Globals. +# + .global __exit + .global __exec +# +# Constants. +# + .set INT_SYS,0x30 # Interrupt number +# +# System call: exit +# +__exit: xorl %eax,%eax # BTX system + int $INT_SYS # call 0x0 +# +# System call: exec +# +__exec: movl $0x1,%eax # BTX system + int $INT_SYS # call 0x1 Property changes on: head/stand/i386/btx/lib/btxsys.S ___________________________________________________________________ Added: svn:keywords ## -0,0 +1 ## +FreeBSD=%H \ No newline at end of property Index: head/stand/i386/btx/lib/btxv86.S =================================================================== --- head/stand/i386/btx/lib/btxv86.S (nonexistent) +++ head/stand/i386/btx/lib/btxv86.S (revision 340990) @@ -0,0 +1,85 @@ +# +# Copyright (c) 1998 Robert Nordier +# All rights reserved. +# +# Redistribution and use in source and binary forms are freely +# permitted provided that the above copyright notice and this +# paragraph and the following disclaimer are duplicated in all +# such forms. +# +# This software is provided "AS IS" and without any express or +# implied warranties, including, without limitation, the implied +# warranties of merchantability and fitness for a particular +# purpose. +# + +# $FreeBSD$ + +# +# BTX V86 interface. +# + +# +# Globals. +# + .global __v86int +# +# Fields in V86 interface structure. +# + .set V86_CTL,0x0 # Control flags + .set V86_ADDR,0x4 # Int number/address + .set V86_ES,0x8 # V86 ES + .set V86_DS,0xc # V86 DS + .set V86_FS,0x10 # V86 FS + .set V86_GS,0x14 # V86 GS + .set V86_EAX,0x18 # V86 EAX + .set V86_ECX,0x1c # V86 ECX + .set V86_EDX,0x20 # V86 EDX + .set V86_EBX,0x24 # V86 EBX + .set V86_EFL,0x28 # V86 eflags + .set V86_EBP,0x2c # V86 EBP + .set V86_ESI,0x30 # V86 ESI + .set V86_EDI,0x34 # V86 EDI +# +# Other constants. +# + .set INT_V86,0x31 # Interrupt number + .set SIZ_V86,0x38 # Size of V86 structure +# +# V86 interface function. +# +__v86int: popl __v86ret # Save return address + pushl $__v86 # Push pointer + call __v86_swap # Load V86 registers + int $INT_V86 # To BTX + call __v86_swap # Load user registers + addl $0x4,%esp # Discard pointer + pushl __v86ret # Restore return address + ret # To user +# +# Swap V86 and user registers. +# +__v86_swap: xchgl %ebp,0x4(%esp,1) # Swap pointer, EBP + xchgl %eax,V86_EAX(%ebp) # Swap EAX + xchgl %ecx,V86_ECX(%ebp) # Swap ECX + xchgl %edx,V86_EDX(%ebp) # Swap EDX + xchgl %ebx,V86_EBX(%ebp) # Swap EBX + pushl %eax # Save + pushf # Put eflags + popl %eax # in EAX + xchgl %eax,V86_EFL(%ebp) # Swap + pushl %eax # Put EAX + popf # in eflags + movl 0x8(%esp,1),%eax # Load EBP + xchgl %eax,V86_EBP(%ebp) # Swap + movl %eax,0x8(%esp,1) # Save EBP + popl %eax # Restore + xchgl %esi,V86_ESI(%ebp) # Swap ESI + xchgl %edi,V86_EDI(%ebp) # Swap EDI + xchgl %ebp,0x4(%esp,1) # Swap pointer, EBP + ret # To caller +# +# V86 interface structure. +# + .comm __v86,SIZ_V86 + .comm __v86ret,4 Property changes on: head/stand/i386/btx/lib/btxv86.S ___________________________________________________________________ Added: svn:keywords ## -0,0 +1 ## +FreeBSD=%H \ No newline at end of property