From 27fbda78b507696596d8aa2d2fe960ccea2cb67a Mon Sep 17 00:00:00 2001 From: patacongo Date: Wed, 13 Feb 2008 16:42:28 +0000 Subject: Add ez8 start-up logic git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@677 42af7a65-404d-4744-a932-0658087f49c3 --- nuttx/arch/z80/src/Makefile.zdsii | 2 +- nuttx/arch/z80/src/z8/Make.defs | 6 +- nuttx/arch/z80/src/z8/z8_head.S | 252 ++++++++++++++++++++++++++++++++ nuttx/configs/z8encore000zco/README.txt | 28 +++- 4 files changed, 280 insertions(+), 8 deletions(-) create mode 100755 nuttx/arch/z80/src/z8/z8_head.S diff --git a/nuttx/arch/z80/src/Makefile.zdsii b/nuttx/arch/z80/src/Makefile.zdsii index 199293ef3..bc44ae78b 100644 --- a/nuttx/arch/z80/src/Makefile.zdsii +++ b/nuttx/arch/z80/src/Makefile.zdsii @@ -40,7 +40,7 @@ WARCHSRCDIR = ${shell cygpath -w $(ARCHSRCDIR)} USRINCLUDES = -usrinc:'.;$(WTOPDIR)\sched;$(WARCHSRCDIR);$(WARCHSRCDIR)\common' INCLUDES = $(ARCHSTDINCLUDES) $(USRINCLUDES) CFLAGS = $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(INCLUDES) $(ARCHDEFINES) -CPPFLAGS += -I$(ARCHSRCDIR) +CPPFLAGS += -I$(ARCHSRCDIR) -I$(ZDSSTDINCDIR) -I$(ZDSZILOGINCDIR) LDFLAGS = @"${shell cygpath -w $(ARCHSRCDIR)/nuttx.linkcmd}" ############################################################################ diff --git a/nuttx/arch/z80/src/z8/Make.defs b/nuttx/arch/z80/src/z8/Make.defs index f59279dc1..d9b2f69cb 100644 --- a/nuttx/arch/z80/src/z8/Make.defs +++ b/nuttx/arch/z80/src/z8/Make.defs @@ -33,9 +33,9 @@ # ############################################################################ -HEAD_ASRC = #z8_head.asm +HEAD_SSRC = z8_head.S -CMN_ASRCS = +CMN_SSRCS = CMN_CSRCS = up_initialize.c up_allocateheap.c up_createstack.c \ up_releasestack.c up_interruptcontext.c up_blocktask.c \ up_unblocktask.c up_exit.c up_releasepending.c \ @@ -44,6 +44,6 @@ CMN_CSRCS = up_initialize.c up_allocateheap.c up_createstack.c \ up_schedulesigaction.c up_sigdeliver.c \ up_registerdump.c up_usestack.c -CHIP_ASRCS = #z8_saveusercontext.asm z8_restoreusercontext.asm +CHIP_SSRCS = #z8_saveusercontext.S z8_restoreusercontext.S CHIP_CSRCS = #z8_initialstate.c z8_irq.c diff --git a/nuttx/arch/z80/src/z8/z8_head.S b/nuttx/arch/z80/src/z8/z8_head.S new file mode 100755 index 000000000..0e3153a8e --- /dev/null +++ b/nuttx/arch/z80/src/z8/z8_head.S @@ -0,0 +1,252 @@ +/************************************************************************** + * arch/z80/src/z8/z8_head.S + * ez8 Reset Entry Point + * + * 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. + * + **************************************************************************/ + +/************************************************************************** + * Included Files + **************************************************************************/ + +#include +#include +#include + +/************************************************************************** + * Definitions + **************************************************************************/ + +/* Assuem the large model */ + +#if !defined(CONFIG_Z8_MODEL_LARGE) && !defined(CONFIG_Z8_MODEL_SMALL) +# define CONFIG_Z8_MODEL_LARGE 1 +# undef CONFIG_Z8_MODEL_SMALL +#endif + +#ifdef __Z8F1680 +# define CONFIG_Z8_COPYPRAM +#else +# undef CONFIG_Z8_COPYPRAM +#endif + + +/************************************************************************** + * External References / External Definitions + **************************************************************************/ + + xref _z16f_clkinit:ROM + xref _z16f_lowinit:ROM +#ifdef CONFIG_ARCH_LEDS + xref _up_ledinit:ROM +#endif +#if defined(CONFIG_USE_LOWUARTINIT) + xref _z16f_lowuartinit:ROM +#elif defined(CONFIG_USE_EARLYSERIALINIT) + xref _up_earlyserialinit:ROM +#endif + xref _os_start:ROM + xref _up_doirq:ROM + xref _low_nearbss + xref _len_nearbss + xref _low_farbss + xref _len_farbss + xref _low_neardata + xref _len_neardata + xref _low_near_romdata + xref _low_fardata + xref _len_fardata + xref _low_far_romdata +#ifdef CONFIG_Z8_COPYPRAM + xref _low_pramseg + xref _len_pramseg + xref _low_pram_romdata +#endif + xref _far_stack + xref _near_stack + xdef _z8_reset + xdef __intrp + +/************************************************************************** + * Code + **************************************************************************/ + + /* Vector table space allocation */ + + include "vect.inc" + + /* Reset vector */ + + vector reset=_z8_reset + +/************************************************************************** + * Name: _z16f_reset + * + * Description: + * Reset entry point + * + **************************************************************************/ + + define startup, space=rom + segment startup +_z8_reset: + /* Set the register pointer for working registers e0-ef */ + + srp #%e0 + + /* Initialize the stack pointer */ + + ldx spl, #low(_far_stack+1) + ldx sph, #high(_far_stack+1) + + /* Clear internal register ram area (c_nearbss) */ + + ld r0, #_low_nearbss + ld r2, #_len_nearbss + cp r2, #0 + jr z, _z8_reset2 + +_z8_reset1: + clr @r0 + inc r0 + djnz r2, _z8_reset1 + + /* Clear extended ram area (c_farbss) */ + +_z8_reset2: + ld r2, #high(_low_farbss) + ld r3, #low(_low_farbss) + ld r0, #high(_len_farbss) + ld r1, #low(_len_farbss) + + ld r4, r0 + or r4, r1 + jr z, _z8_reset4 + clr r4 + +_z8_reset3: + ldx @rr2,r4 + incw rr2 + decw rr0 + jr nz, _z8_reset3 + + /* Copy ROM data into internal RAM */ + +_z8_reset4: + ld r0, #high(_low_near_romdata) + ld r1, #low(_low_near_romdata) + ld r3, #_len_neardata + ld r4, #_low_neardata + or r3, r3 + +_z8_reset5: + ldci @r4, @rr0 + djnz r3, _z8_reset5 + + /* Copy ROM data into extended RAM */ + + ld r0, #high(_low_fardata) + ld r1, #low(_low_fardata) + ld r2, #high(_low_far_romdata) + ld r3, #low(_low_far_romdata) + ld r4, #high(_len_fardata) + ld r5, #low(_len_fardata) + + ld r6, r4 + or r6, r5 + jr z, _z8_reset7 + +_z8_reset6: + ldc r6, @rr2 + ldx @rr0, r6 + incw rr0 + incw rr2 + decw rr4 + jr nz, _z8_reset6 + + /* Copy ROM copy of code into Program RAM */ + +_z8_reset7: +#ifdef CONFIG_Z8_COPYPRAM + ld r0, #high(_low_pramseg) + ld r1, #low(_low_pramseg) + ld r2, #high(_low_pram_romdata) + ld r3, #low(_low_pram_romdata) + ld r4, #high(_len_pramseg) + ld r5, #low(_len_pramseg) + + ld r6, r4 + or r6, r5 + jr z, _z8_reset9 + +_z8_reset8: + ldc r6, @rr2 + ldc @rr0, r6 + incw rr0 + incw rr2 + decw rr4 + jr nz, _z8_reset8 + +_z8_reset9: +#endif + + /* Start NuttX */ + + ldx __intrp,#0 + xor r15, r15 + xor r14, r14 + call _os_start + + /* We should never get here */ + +_z8_reset_halt: + jr _z8_reset_halt + +/************************************************************************** + * Code + **************************************************************************/ + +#ifdef CONFIG_Z8_MODEL_LARGE + segment FAR_BSS +__intrp ds 1 +#else + segment NEAR_BSS +__intrp ds 1 +#endif + + /* Set aside area for working registers */ + + define workingreg, space=rdata, org=%E0 + segment workingreg + ds %10 + + end _z8_reset diff --git a/nuttx/configs/z8encore000zco/README.txt b/nuttx/configs/z8encore000zco/README.txt index 0184da983..fdca7ad33 100644 --- a/nuttx/configs/z8encore000zco/README.txt +++ b/nuttx/configs/z8encore000zco/README.txt @@ -4,10 +4,30 @@ README.txt ZDS-II Compiler Versions ^^^^^^^^^^^^^^^^^^^^^^^^ -If you use any version of ZDS-II other than 4.10.1 or if you install ZDS-II -at any location other than the default location, you will have to modify -two files: (1) configs/z8encore000zco/*/setenv.sh and (2) -configs/z8encore000zco/*/Make.defs. +4.10.1 + The ZDS-II version 4.10.2 will not compile NuttX. It reports "internal + errors" on one of the files, mm/mm_initialize.c. Below is a simple work- + around. With this work-around in place, NuttX builds successfully with + the 4.10.1 compiler. + + --- mm/mm_initialize.c.SAVE 2008-02-13 08:06:46.833857700 -0600 + +++ mm/mm_initialize.c 2008-02-13 08:07:26.367608900 -0600 + @@ -94,8 +94,11 @@ + { + int i; + + +#if 0 /* DO NOT CHECK IN */ + CHECK_ALLOCNODE_SIZE; + CHECK_FREENODE_SIZE; + +#endif + + /* Set up global variables */ + +Other Versions + If you use any version of ZDS-II other than 4.10.1 or if you install ZDS-II + at any location other than the default location, you will have to modify + two files: (1) configs/z8encore000zco/*/setenv.sh and (2) + configs/z8encore000zco/*/Make.defs. Configuration Subdirectories ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -- cgit v1.2.3