sdcc-3.9.0 fork implementing GNU assembler syntax

This fork aims to provide better support for stm8-binutils

1 files changed, 94 insertions, 0 deletions

diff --git a/src/pic14/device.h b/src/pic14/device.h
new file mode 100644
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--- /dev/null
+++ b/src/pic14/device.h
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+/*-------------------------------------------------------------------------
+
+   device.c - Accomodates subtle variations in PIC devices
+   Written By -  Scott Dattalo scott@dattalo.com
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 2, or (at your option) any
+   later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+-------------------------------------------------------------------------*/
+
+/*
+  PIC device abstraction
+
+  There are dozens of variations of PIC microcontrollers. This include
+  file attempts to abstract those differences so that SDCC can easily
+  deal with them.
+*/
+
+#ifndef  __DEVICE_H__
+#define  __DEVICE_H__
+
+#include "common.h"
+
+#define MAX_NUM_CONFIGS 16
+
+/*
+ * Imports
+ */
+extern char *iComments2;
+
+/* memRange - a structure to define a range of valid memory addresses 
+ * 
+ * The Memory of most PICs (and other micros) is a collection of
+ * disjoint chunks. The memRange structure will define the start
+ * and end address of one of these chunks. The memory map of a
+ * particular device is a collection of memRange struct's.
+ */
+
+typedef struct memRange {
+	int start_address;      /* first address in range */
+	int end_address;        /* last */
+	int alias;              /* bit mask defining how/if memory range is aliased 
+	                         * e.g. alias = 0x80 means start_address is identical
+	                         * to the memory location at (0x80 | start_address) */
+	int bank;               /* PIC memory bank this range occupies */
+	struct memRange *next;	/* linked list */
+
+} memRange;
+
+/* Processor unique attributes */
+typedef struct PIC_device {
+	char *name;                 /* the processor name */
+
+	memRange *ram;              /* RAM memory map */
+	memRange *sfr;              /* SFR memory map */
+
+	int maxRAMaddress;          /* maximum value for a data address */
+	int defMaxRAMaddrs;         /* default maximum value for a data address */
+	int bankMask;               /* Bitmask that is ANDed with address to extract banking bits */
+	//  int hasAliasedRAM:1;        /* True if there are bank independent registers */
+	int num_configs;                /* number of config words for this device */
+	int config[MAX_NUM_CONFIGS];    /* addresses of config word(s) */
+	
+	int programMemSize;         /* program memory size in words - for device listing only */
+	int dataMemSize;            /* data (RAM) memory size in bytes - for device listing only */
+	int eepromMemSize;          /* EEPROM memory size in bytes - for device listing only */
+	int ioPins;                 /* number of I/O pins - for device listing only */
+        int isEnhancedCore;         /* enhanced cores (19f1934) feature automatic context saving */
+
+} PIC_device;
+
+
+PIC_device *init_pic(char *pic_type);
+int picIsInitialized(void);
+char *processor_base_name(void);
+int IS_CONFIG_ADDRESS(int addr);
+void pic14_assignConfigWordValue(int address, int value);
+int pic14_emitConfigWord(FILE *vFile);
+
+int pic14_allRAMShared(void);
+int pic14_getSharedStack(int *low, int *high, int *size);
+PIC_device * pic14_getPIC(void);
+
+#endif  /* __DEVICE_H__ */