diff --git a/arch/z80/src/Makefile b/arch/z80/src/Makefile index 39c5697837..6cc1463d0f 100644 --- a/arch/z80/src/Makefile +++ b/arch/z80/src/Makefile @@ -38,6 +38,7 @@ -include $(TOPDIR)/Make.defs -include chip/Make.defs +-include board/Make.defs ############################################################################ # Compiler-Dependent Make diff --git a/arch/z80/src/Makefile.sdcc b/arch/z80/src/Makefile.sdcc index 895ecc4bae..8865ad4b99 100644 --- a/arch/z80/src/Makefile.sdcc +++ b/arch/z80/src/Makefile.sdcc @@ -71,7 +71,7 @@ DEPSRCS = $(CSRCS) ARCH_SRCDIR = $(TOPDIR)/arch/$(CONFIG_ARCH)/src BOARDDIR = $(TOPDIR)/arch/$(CONFIG_ARCH)/src/board -VPATH = chip:common +VPATH = chip:common:board # Libraries diff --git a/arch/z80/src/z80/Make.defs b/arch/z80/src/z80/Make.defs index 76b98199a2..01564f059a 100644 --- a/arch/z80/src/z80/Make.defs +++ b/arch/z80/src/z80/Make.defs @@ -33,11 +33,13 @@ # ############################################################################ +ifeq ($(CONFIG_ARCH_HAVEHEAD),) ifeq ($(CONFIG_LINKER_ROM_AT_0000),y) HEAD_ASRC = z80_rom.asm else HEAD_ASRC = z80_head.asm endif +endif CMN_ASRCS = CMN_CSRCS = up_initialize.c up_allocateheap.c up_createstack.c \ diff --git a/arch/z80/src/z80/README.txt b/arch/z80/src/z80/README.txt new file mode 100644 index 0000000000..81cdf756d0 --- /dev/null +++ b/arch/z80/src/z80/README.txt @@ -0,0 +1,49 @@ +arch/z80/src/z80 +^^^^^^^^^^^^^^^^ + +The arch/z80 directories contain files to support a variety of 8-bit architectures +from ZiLOG (and spin-architectures such as the Rabbit2000). The arch/z80/src/z80 +sub-directory contains logic unique to the classic Z80 chip. + +Files in this directory include: + +z80_head.asm + This is the main entry point into the Z80 program. This includes the + handler for the RESET, power-up interrupt vector and address zero and all + RST interrupts. + +z80_rom.asm + Some architectures may hae ROM located at address zero. In this case, a + special version of the "head" logic must be used. This specail "head" + file is probably board-specific and, hence, belongs in the board-specific + configs//src directory. This file may, however, be used as + a model for such a board-specific file. + + z80_rom.S is enabled by specifying CONFIG_LINKER_ROM_AT_0000 in the + configuration file. + + A board specific version in the configs//src directory can be + used by: + + 1. Define CONFIG_ARCH_HAVEHEAD + 2. Add the board-specific head file, say .asm, to + configs//src + 3. Add a file called Make.defs in the configs//src directory + containing the line: HEAD_ASRC = .asm + +Make.defs + This is the standard makefile fragment that must be provided in all + chip directories. This fragment identifies the chip-specific file to + be used in building libarch. + +chip.h + This is the standard header file that must be provided in all chip + directories. + +z80_initialstate.c, z80_copystate.c, z80_restoreusercontext.asm, and +z80_saveusercontext.asm, switch + These files implement the Z80 context switching logic + +z80_schedulesigaction.c and z80_sigdeliver.c + These files implement Z80 signal handling. + \ No newline at end of file diff --git a/configs/xtrs/README.txt b/configs/xtrs/README.txt index 72ef1d29b1..f40e859fa2 100644 --- a/configs/xtrs/README.txt +++ b/configs/xtrs/README.txt @@ -1,12 +1,37 @@ xtrs README ^^^^^^^^^^^^^ -TRS80 Model 3. This port uses a vintage computer based on the Z80. +Current status +^^^^^^^^^^^^^^ + +The xtrs port is not operational yet; some work still needs to be done. + +Getting a TRS80 emulator and DOS disks +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +This port uses a vintage computer based on the Z80, the TRS80. +There's a main page describing the different models of TRS80. +See: http://www.trs-80.com + An emulator for this computer is available to run TRS80 programs on a linux platform (http://www.tim-mann.org/xtrs.html). +Other emulators are available for other platforms. +See http://www.trs-80.com, click on the link Emulators. + +TRSDOS, LDOS and other softwares are available at: +http://discover-net.net/~dmkeil/trs80/software/trs-dos.htm + +Or you can get TRSDOS 1.3 and 6.1 from this site; it's included with the emulator. +http://discover-net.net/~dmkeil/trs80/model4.htm + The SDCC toolchain is available from http://sdcc.sourceforge.net/. All -testing has been performed using version 2.6.0 of the SDCC toolchain. +testing has been performed using version 2.7.0 of the SDCC toolchain. + +Loading an executable into xtrs +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +At http://www.trs-80.com click on the link: Getting a Software Onto an Emulator. Configuring NuttX ^^^^^^^^^^^^^^^^^ diff --git a/configs/xtrs/src/Make.defs b/configs/xtrs/src/Make.defs new file mode 100644 index 0000000000..d077ca6459 --- /dev/null +++ b/configs/xtrs/src/Make.defs @@ -0,0 +1,37 @@ +############################################################################ +# configs/xtrs/src/Make.defs +# +# Copyright (C) 2008 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt +# +# 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. +# 3. Neither the name NuttX nor the names of its contributors may be +# used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 +# COPYRIGHT OWNER 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. +# +############################################################################ + +HEAD_ASRC = xtrs_head.asm +