a good deal of process

1 files changed, 40 insertions, 0 deletions

diff --git a/src/kernel/files.h b/src/kernel/files.h
new file mode 100644
index 0000000..31ad21f
--- /dev/null
+++ b/src/kernel/files.h
@@ -0,0 +1,40 @@
+/*
+Copyright 2019 Benji Dial
+
+Permission to use, copy, modify, and/or distribute this
+software for any purpose with or without fee is hereby
+granted, provided that the above copyright notice and this
+permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS
+ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+OF THIS SOFTWARE.
+*/
+
+#include <stdint.h>
+
+#ifndef FILES_H
+#define FILES_H
+
+struct file_handle_info {
+  uint16_t first_sector;
+  uint16_t current_sector;
+  uint8_t *io_buffer;
+  uint32_t position;
+};
+
+#define FILE_HANDLES ((struct file_handle_info *)*(uint32_t *)0x0000050c)
+uint16_t open_file(uint8_t *name);
+void close_file(uint16_t handle);
+void read_file(uint16_t handle, uint32_t length, void *buffer);
+void write_file(uint16_t handle, uint32_t length, void *buffer);
+void seek_file(uint16_t handle, int32_t by);
+uint32_t get_size(uint16_t handle);
+
+#endif
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