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/*
casm - Simple, portable assembler
Copyright (C) 2003-2015 Ian Cowburn (ianc@noddybox.demon.co.uk)
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 3 of the License, 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, see <http://www.gnu.org/licenses/>.
-------------------------------------------------------------------------
Stores assembly state.
*/
#ifndef CASM_STATE_H
#define CASM_STATE_H
/* ---------------------------------------- TYPES
*/
typedef enum
{
MSB_Word,
LSB_Word
} WordMode;
/* ---------------------------------------- INTERFACES
*/
/* Clear state to default. This creates 64K of RAM to write into.
*/
void ClearState(void);
/* Sets the number of bytes in RAM. Addressing always starts from zero.
*/
void SetAddressSpace(int size);
/* Move onto the next pass
*/
void NextPass(void);
/* Is final pass?
*/
int IsFinalPass(void);
/* Is first pass?
*/
int IsFirstPass(void);
/* Is intermediate pass?
*/
int IsIntermediatePass(void);
/* Set number of passes needed. This works while IsFinalPass() returns FALSE.
*/
int SetNeededPasses(int n);
/* Set the current PC
*/
void SetPC(int i);
/* Set the mode to write words in
*/
void SetWordMode(WordMode mode);
/* Get the current PC
*/
int PC(void);
/* Add a number to the PC
*/
void PCAdd(int i);
/* Write a byte to the PC and increment it
*/
void PCWrite(int i);
/* Write a word to the PC and increment it
*/
void PCWriteWord(int i);
void PCWriteWordMode(int i, WordMode mode);
/* Get the minimum address written to
*/
int GetMinAddressWritten(void);
/* Get the maximum address written to
*/
int GetMaxAddressWritten(void);
/* Access the address space directly
*/
const Byte *AddressSpace(void);
/* Read a byte from the address space
*/
Byte ReadByte(int addr);
#endif
/*
vim: ai sw=4 ts=8 expandtab
*/
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