80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*
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StarForth — Steady-State Virtual Machine Runtime
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Copyright (c) 2023–2025 Robert A. James
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All rights reserved.
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This file is part of the StarForth project.
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Licensed under the StarForth License, Version 1.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at:
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https://github.com/star.4th@proton.me/StarForth/LICENSE.txt
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This software is provided "AS IS", WITHOUT WARRANTY OF ANY KIND,
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express or implied, including but not limited to the warranties of
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merchantability, fitness for a particular purpose, and noninfringement.
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See the License for the specific language governing permissions and
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limitations under the License.
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StarForth — Steady-State Virtual Machine Runtime
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Copyright (c) 2023–2025 Robert A. James
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All rights reserved.
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This file is part of the StarForth project.
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Licensed under the StarForth License, Version 1.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at:
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https://github.com/star.4th@proton.me/StarForth/LICENSE.txt
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This software is provided "AS IS", WITHOUT WARRANTY OF ANY KIND,
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express or implied, including but not limited to the warranties of
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merchantability, fitness for a particular purpose, and noninfringement.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#ifndef IO_H
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#define IO_H
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#include <stdint.h>
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#include "vm.h"
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/* BLOCK_SIZE is defined in vm.h */
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/** @brief Total number of blocks available */
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#define BLOCK_COUNT 1024
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/** @brief Total memory size in bytes */
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#define MEMORY_SIZE (BLOCK_SIZE * BLOCK_COUNT)
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/*
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* @brief Initialize the I/O subsystem
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* @param vm Pointer to the virtual machine instance
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*/
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void io_init(VM * vm);
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/**
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* @brief Read a block from storage
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* @param vm Pointer to the virtual machine instance
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* @param block_num Block number to read
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* @param buffer Buffer to store the read data
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* @return 0 on success, non-zero on failure
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*/
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int io_read_block(VM *vm, int block_num, unsigned char *buffer);
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/*
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* @brief Write a block to storage
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* @param vm Pointer to the virtual machine instance
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* @param block_num Block number to write
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* @param buffer Buffer containing data to write
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* @return 0 on success, non-zero on failure
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*/
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int io_write_block(VM *vm, int block_num, const unsigned char *buffer);
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#endif /* IO_H */ |