2000-04-26  Jesper Skov  <jskov@redhat.com>

	* src/hal_mk_defs.c: Added some caching data.

	* src/vectors.S:
	* include/hal_cache.h:
	Rewrote caching functions in assembly with appropriate magic to
	have the code execute out of a non-cachable memory shadow.

2000-04-25  Jesper Skov  <jskov@redhat.com>

	* include/hal_cache.h (HAL_UCACHE_WRITE_MODE): Also wiggle the WT
	bit. It has opposite polarity of the CB bit.

2000-04-12  Jesper Skov  <jskov@redhat.com>

	* src/vectors.S: Entry code rewritten to allow ROMRAM startups.

	* src/sh.ld: Change LMA alignment to 16 (workaround
	902557-CR). Provide vector LMA address.

	* include/sh_sci.inl: Replaced hardcoded baud rate constant with 
	macro function.

	* cdl/hal_sh.cdl: Don't let interface define anything.

2000-04-10  Jesper Skov  <jskov@redhat.com>

	* include/hal_intr.h: Mask/unmask functions handle entire ISR
	range now.

2000-04-06  Jesper Skov  <jskov@redhat.com>

	* src/sh.ld (_hal_vsr_table): Get address from platform CDL.

2000-03-31  Jesper Skov  <jskov@redhat.com>

	* include/sh_regs.h: Added bit definitions for BSC.

	* include/sh_regs.h: Replaced hardcoded baud rate constants with
	a macro which calculates the proper values based on baud rate
	and CPU clock speed.

	* src/vectors.S: ISR mask tables enabled per CPU variant, not
	target.

2000-03-20  Jesper Skov  <jskov@redhat.com>

	* include/sh_regs.h: Add definitions for RTC module.

2000-03-20  Jesper Skov  <jskov@redhat.com>

	* src/hal_mk_defs.c: Added CYGNUM_HAL_VSR_EXCEPTION_COUNT

2000-03-16  Jesper Skov  <jskov@redhat.com>

	* include/mod_7708.h: 
	* include/sh_regs.h: 
	Adding new module definitions, conditionally included depending on
	chosen CPU implementation. Each CPU defines its own set of
	included modules (and module versions).

	* include/hal_cache.h: Get cache specs from CPU module file.

	* cdl/hal_sh.cdl: Added CPU implementation controls.

2000-03-03  Jonathan Larmour  <jlarmour@redhat.co.uk>

	* include/sh_stub.h: Make C++ safe

2000-02-28  Jesper Skov  <jskov@redhat.com>

	* src/vectors.S:
	* src/hal_mk_defs.c: 
	* src/context.S: 
	* include/hal_arch.h: 
	* cdl/hal_sh.cdl: 
	Added hal_mk_defs allowing assembly to use C symbols.
	Cleaned up setjmp/longjmp structure.

	* include/arch.inc: Added interrupt macros.
	* src/vectors.S: Leave interrupt enable to interrupt_end, ensuring
	proper use of interrupt_stack. Use range-checking instead of
	counter for switches to interrupt_stack.
	* src/context.S: Save and restore interrupt state on thread
	switches.
	* include/hal_arch.h: Set thread initial SR state to allow
	interrupts.

2000-02-18  Jesper Skov  <jskov@redhat.com>

	* src/context.S: Fix comment character.

2000-02-16  Jesper Skov  <jskov@redhat.com>

	* cdl/hal_sh.cdl: 
	* include/basetype.h:
	Added LE support.

2000-02-15  Jesper Skov  <jskov@redhat.com>

	* src/vectors.S: Leave vector initialization to platform. Get rid
	of stubs startup type.

	* src/sh.ld: Define hal_vsr_table address.

	* include/hal_intr.h: provide CYGNUM_HAL_VSR_EXCEPTION_COUNT.

2000-01-24  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (__interrupt_stack): Remove stubs config check for
	CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK.

1999-12-21  Jonathan Larmour  <jlarmour@cygnus.co.uk>

	* include/hal_cache.h: Rename CYG_HAL_SH_SH7708 ->
	CYGPKG_HAL_SH_EDK7708

	* include/sh_regs.h: Likewise

	* src/vectors.S: Likewise
	Rename CYG_HAL_USE_ROM_MONITOR_GDB_STUBS ->
	CYGSEM_HAL_USE_ROM_MONITOR_GDB_stubs

1999-12-02  John Dallaway  <jld@cygnus.co.uk>

	* cdl/hal_sh.cdl:

	Use the <PACKAGE> token in custom rules.

1999-12-01  John Dallaway  <jld@cygnus.co.uk>

	* cdl/hal_sh.cdl:

	Use the <PREFIX> token in custom rules.

1999-11-04  John Dallaway  <jld@cygnus.co.uk>

	* cdl/hal_sh.cdl:

	Output custom rule dependency information to .deps files in
	the current directory.

	Dispense with the need to create a 'src' sub-directory.

1999-10-29  Jesper Skov  <jskov@cygnus.co.uk>

	* cdl/hal_sh.cdl: Added.

1999-09-01  Jesper Skov  <jskov@cygnus.co.uk>

	* include/sh_regs.h: Added watchdog registers.

1999-07-30  Jesper Skov  <jskov@cygnus.co.uk>

	* src/sh_stub.c (__single_step): Added handling of bt/s and bf/s.

1999-07-12  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* src/sh_stub.c: Use UCOND_RBR_MASK instead of BRAF_MASK.

1999-07-05  Jesper Skov  <jskov@cygnus.co.uk>

	* src/sh_stub.c (__single_step): And of bsrf.

1999-07-02  Jesper Skov  <jskov@cygnus.co.uk>

	* src/sh_stub.c (__single_step): Added handling of braf
	instruction.

1999-06-25  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (__startup_stack): Increased size to allow the
	twothreads example to run.

1999-06-24  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS overrides use
	of stubs in ROM.

	* src/sh_stub.c (__computeSignal): Renamed _IO_ vectors to _DATA_.

1999-06-21  Jesper Skov  <jskov@cygnus.co.uk>
        PR 20200
	* include/hal_intr.h: Renamed _IO_ error vectors to _DATA_.

	* src/vectors.S: Increased size of startup stack.

1999-06-08  Jesper Skov  <jskov@cygnus.co.uk>

	* include/pkgconf/hal_sh.h: Added CDL for
	CYGHWR_HAL_SH_HANDLE_SPURIOUS_INTERRUPTS.

	* src/vectors.S: 
	* include/hal_intr.h: 
	Decode exceptions before the VSR level.

1999-06-02  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Cleaned up the interrupt entry/exit code.
	Made it have consistent register-bank usage.

1999-06-01  Jesper Skov  <jskov@cygnus.co.uk>

	* src/context.S (hal_thread_switch_context): Save PC when thread
	debugging enabled.

	* src/vectors.S:
	* include/hal_arch.h: 
	* include/sh.inc: 
	Added handling of VBR and GBR.

	* include/hal_intr.h: 
	* src/vectors.S:
	Added proper handling of nested interrupts.

	* src/vectors.S (__interrupt): Added handling of spurious event=0
	interrupts. 

1999-05-31  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Fixed comment.

	* include/sh_sci.inl (cyg_hal_gdb_isr): Alter CR using the proper
	mask.

	* include/hal_cache.h (HAL_UCACHE_WRITE_MODE): Fixed typo.

	* src/hal_misc.c (cyg_hal_enable_caches): Enable write-back mode.

	* src/sh_stub.c	(__computeSignal): 
	Added proper cause->signal decoding.
	
	* src/sh_stub.c: 
	* src/hal_misc.c:
	* include/hal_intr.h: 
	* include/hal_arch.h:
	Cleaned up some FIX MEs.

	* include/sh_regs.h: Added CYGARC_REG_SCSSR_CLEARMASK.

1999-05-28  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_arch.h: 
	* src/vectors.S: 
	Fixed stack size macros.

1999-05-27  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_cache.h: Include io and register header files.

	* include/hal_intr.h: 
	* src/vectors.S (_hal_interrupt_stack_call_pending_DSRs):
	Added DSR-calls-on-interrupt-stack support.	

1999-05-27  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_cache.h: Force cache macros to use registers, or
	they fail when compiled without optimization.

1999-05-26  Jesper Skov  <jskov@cygnus.co.uk>

	* include/hal_intr.h:
	Fix asm constraints.

	* src/vectors.S: Fixed cyg_instrument call.
	Added forgotten delay-slot nop after bra.
	
1999-05-26  Jesper Skov  <jskov@cygnus.co.uk>

	* include/sh_regs.h: Added some more baud rate values.

1999-05-25  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Get ISR count from hal_intr.h.
	Define regions of interrupt/exception handlers that are debugging
	safe.

	* include/hal_intr.h: Split in two parts - top is assembly safe.

1999-05-24  Jesper Skov  <jskov@cygnus.co.uk>

	* src/hal_misc.c (cyg_hal_enable_caches): Disable writeback for
	now.

	* include/hal_cache.h: 
	Fixed typos and compiler warnings.

	* src/hal_misc.c:
	Renamed BCACHE to U(nified)CACHE.

1999-05-24  Jesper Skov  <jskov@cygnus.co.uk>

	* include/sh_regs.h: Added cache register definitions.

	* include/hal_cache.h: Defined cache macros.

	* src/hal_misc.c (cyg_hal_enable_caches): Use BCACHE macros.

	* src/vectors.S (_start): Call cache init function.

	* include/hal_intr.h: Ignore reserved vectors when accessed by ISR
	macros.
	(HAL_CLOCK_INITIALIZE): Removed hack that made clock run at 1/4 speed.

	* include/hal_arch.h:
	* src/context.S: 
	Implemented setjmp/longjmp functions.

1999-05-21  Jesper Skov  <jskov@cygnus.co.uk>

	* src/sh.ld: Fix _stext/_etext naming.

	* include/hal_intr.h: Added missing interrupt sources.

	* include/sh_sci.inl: Added GDB_BREAK support.

	* src/vectors.S (__default_interrupt_vsr): Added GDB_BREAK
	support.
	Fixed register overwrite.
	Set SR on exception/interrupt entry to allow breakpoints in
	handlers.
	
1999-05-21  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Added support for handling of exceptions by stub
	in ROM.

	* include/sh_sci.inl (init_serial): Added comment.

	* src/vectors.S (_cyg_interrupt_stack_base, _cyg_interrupt_stack): 
	Fixed naming.

	* src/context.S: Removed MINIMUM_CONTEXT handling as it was
	flawed. A better version doesn't save many cycles.

1999-05-21  Hugo Tyson  <hmt@cygnus.co.uk>

	* include/hal_intr.h: Define HAL_INTERRUPT_STACK_BASE and
	HAL_INTERRUPT_STACK_TOP so that stack usage macros in
	kernel/.../stackmon.hxx can work.

	* src/vectors.S (cyg_interrupt_stack_base): Define this symbol for
	the interrupt stack and its friend for the stack top so that we
	can publish them with nice names.

1999-05-21  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (__default_exception_vsr): Decode cause of
	exception.

	* src/sh_stub.c	(__clear_single_step): Let fixup code handle PC
	decrementing.

	* include/sh_stub.h: Fix PC after a trap instruction was hit.

1999-05-21  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: 
	* include/hal_intr.h: 
	Use IMASK to control interrupts rather than BL.

	* src/sh_stub.c: Added single step code.
	Don't skip instructions when single stepping.

1999-05-20  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Fixed errors due to trunk-move cleanup.
	Added counter to debug code. Fixed bug in debug code(!).
	Doubled startup stack size.

1999-05-20  Jesper Skov  <jskov@cygnus.co.uk>

	* Moved files to CVS trunk.

1999-05-19  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S: Fixed comment.

	* include/sh_sci.inl: Set speed to 38400 when not RAM startup.

	* include/hal_arch.h: Enable interrupts before a trap. 

1999-05-19  Jesper Skov  <jskov@cygnus.co.uk>

	* src/vectors.S (__reset): Added initial jump to get from address
	0 to ROM.

	* include/sh_regs.h: Added BSC register definitions.

1999-05-19  Jesper Skov  <jskov@cygnus.co.uk>

        * Most things working now. Will start keeping track of changes.
	

1999-04-22  Jesper Skov  <jskov@lassi.cygnus.co.uk>

	* Set up directory structure.

//===========================================================================
//####COPYRIGHTBEGIN####
//                                                                          
// -------------------------------------------                              
// The contents of this file are subject to the Red Hat eCos Public License 
// Version 1.1 (the "License"); you may not use this file except in         
// compliance with the License.  You may obtain a copy of the License at    
// http://www.redhat.com/                                                   
//                                                                          
// Software distributed under the License is distributed on an "AS IS"      
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
// License for the specific language governing rights and limitations under 
// the License.                                                             
//                                                                          
// The Original Code is eCos - Embedded Configurable Operating System,      
// released September 30, 1998.                                             
//                                                                          
// The Initial Developer of the Original Code is Red Hat.                   
// Portions created by Red Hat are                                          
// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
// All Rights Reserved.                                                     
// -------------------------------------------                              
//                                                                          
//####COPYRIGHTEND####
//===========================================================================
