////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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// Filename: zipsys.h
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// Filename: zipsys.h
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//
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//
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// Project: CMod S6 System on a Chip, ZipCPU demonstration project
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// Project: CMod S6 System on a Chip, ZipCPU demonstration project
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//
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//
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// Purpose: Defines particular definitions specific to the ZipCPU.
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// Purpose: Defines particular definitions specific to the ZipCPU.
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// Originally designed to be specific to the ZipSystem, this has
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// Originally designed to be specific to the ZipSystem, this has
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// been adjusted to just the CPU, since the CMod S6 doesn't have the full
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// been adjusted to just the CPU, since the CMod S6 doesn't have the full
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// ZipSystem implemented.
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// ZipSystem implemented.
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//
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//
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// Creator: Dan Gisselquist, Ph.D.
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// Creator: Dan Gisselquist, Ph.D.
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// Gisselquist Technology, LLC
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// Gisselquist Technology, LLC
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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// Copyright (C) 2015-2016, Gisselquist Technology, LLC
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// Copyright (C) 2015-2016, Gisselquist Technology, LLC
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//
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//
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// This program is free software (firmware): you can redistribute it and/or
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// This program is free software (firmware): you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as published
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// modify it under the terms of the GNU General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or (at
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// by the Free Software Foundation, either version 3 of the License, or (at
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// your option) any later version.
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// your option) any later version.
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//
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//
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
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// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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// for more details.
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//
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//
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// You should have received a copy of the GNU General Public License along
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// You should have received a copy of the GNU General Public License along
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// with this program. (It's in the $(ROOT)/doc directory, run make with no
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// with this program. (It's in the $(ROOT)/doc directory, run make with no
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// target there if the PDF file isn't present.) If not, see
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// target there if the PDF file isn't present.) If not, see
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// <http://www.gnu.org/licenses/> for a copy.
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// <http://www.gnu.org/licenses/> for a copy.
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//
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//
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// License: GPL, v3, as defined and found on www.gnu.org,
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// License: GPL, v3, as defined and found on www.gnu.org,
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// http://www.gnu.org/licenses/gpl.html
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// http://www.gnu.org/licenses/gpl.html
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//
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//
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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//
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//
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#ifndef ZIPSYS_H
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#ifndef ZIPSYS_H
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#define ZIPSYS_H
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#define ZIPSYS_H
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#include "board.h"
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#include "board.h"
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#define CC_Z 0x0001
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#define CC_Z 0x0001
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#define CC_C 0x0002
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#define CC_C 0x0002
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#define CC_N 0x0004
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#define CC_N 0x0004
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#define CC_V 0x0008
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#define CC_V 0x0008
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#define CC_SLEEP 0x0010
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#define CC_SLEEP 0x0010
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#define CC_GIE 0x0020
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#define CC_GIE 0x0020
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#define CC_STEP 0x0040
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#define CC_STEP 0x0040
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#define CC_BREAK 0x0080
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#define CC_BREAK 0x0080
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#define CC_ILL 0x0100
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#define CC_ILL 0x0100
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#define CC_TRAPBIT 0x0200
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#define CC_TRAPBIT 0x0200
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#define CC_BUSERR 0x0400
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#define CC_BUSERR 0x0400
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#define CC_DIVERR 0x0800
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#define CC_DIVERR 0x0800
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#define CC_FPUERR 0x1000
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#define CC_FPUERR 0x1000
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#define CC_IPHASE 0x2000
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#define CC_IPHASE 0x2000
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extern void zip_rtu(void);
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extern void zip_rtu(void);
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extern void zip_halt(void);
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extern void zip_halt(void);
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extern void zip_idle(void);
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extern void zip_idle(void);
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extern void zip_syscall(void);
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extern void zip_syscall(void);
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extern void zip_restore_context(int *);
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extern void zip_restore_context(int *);
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extern void zip_save_context(int *);
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extern void zip_save_context(int *);
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extern int zip_bitrev(int v);
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extern int zip_bitrev(int v);
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extern unsigned zip_cc(void);
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extern unsigned zip_cc(void);
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extern unsigned zip_ucc(void);
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extern unsigned zip_ucc(void);
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extern int _top_of_heap[1];
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extern int _top_of_heap[1];
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extern void save_context(int *);
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extern void save_context(int *);
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extern void restore_context(int *);
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extern void restore_context(int *);
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extern int syscall(const int,int,int,int);
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extern int syscall(const int,int,int,int);
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#ifndef NULL
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#ifndef NULL
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#define NULL ((void *)0)
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#define NULL ((void *)0)
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#endif
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#endif
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static inline void DISABLE_INTS(void) {
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static inline void DISABLE_INTS(void) {
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IOSPACE *sys = (IOSPACE *)IOADDR;
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IOSPACE *sys = (IOSPACE *)IOADDR;
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sys->io_pic = 0;
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sys->io_pic = 0;
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}
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}
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static inline void ENABLE_INTS(void) {
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static inline void ENABLE_INTS(void) {
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IOSPACE *sys = (IOSPACE *)IOADDR;
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IOSPACE *sys = (IOSPACE *)IOADDR;
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sys->io_pic = 0x80000000;
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sys->io_pic = INT_ENABLE;
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}
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}
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#endif
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#endif
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