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77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/*
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# This file is Copyright 2007, 2009, 2010 Dean Hall.
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#
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# This file is part of the PyMite VM.
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# The PyMite VM is free software: you can redistribute it and/or modify
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# it under the terms of the GNU GENERAL PUBLIC LICENSE Version 2.
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#
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# The PyMite VM is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# A copy of the GNU GENERAL PUBLIC LICENSE Version 2
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# is seen in the file COPYING in this directory.
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*/
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#ifndef __PLAT_H__
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#define __PLAT_H__
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/**
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* \file
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* \brief PyMite's Porting Interface
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*/
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/**
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* Initializes the platform as needed by the routines
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* in the platform implementation file.
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*/
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PmReturn_t plat_init(void);
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/** De-initializes the platform after the VM is done running. */
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PmReturn_t plat_deinit(void);
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/**
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* Returns the byte at the given address in memspace.
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*
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* Increments the address (just like getc and read(1))
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* to make image loading work (recursively).
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*
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* PORT: fill in getByte for each memspace in the system;
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* call sys_error for invalid memspaces.
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*
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* @param memspace memory space/type
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* @param paddr ptr to address
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* @return byte from memory.
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* paddr - points to the next byte
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*/
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uint8_t plat_memGetByte(PmMemSpace_t memspace, uint8_t const **paddr);
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/**
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* Receives one byte from the default connection,
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* usually UART0 on a target device or stdio on the desktop
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*/
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PmReturn_t plat_getByte(uint8_t *b);
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/**
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* Sends one byte out on the default connection,
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* usually UART0 on a target device or stdio on the desktop
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*/
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PmReturn_t plat_putByte(uint8_t b);
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/**
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* Gets the number of timer ticks that have passed since system start.
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*/
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PmReturn_t plat_getMsTicks(uint32_t *r_ticks);
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/**
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* Reports an exception or other error that caused the thread to quit
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*/
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void plat_reportError(PmReturn_t result);
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#endif /* __PLAT_H__ */
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