3 files changed, 87 insertions, 0 deletions
diff --git a/include/zx/basic.h b/include/zx/basic.h
new file mode 100644
index 0000000..1989954
--- /dev/null
+++ b/include/zx/basic.h
@@ -0,0 +1,35 @@
+#ifndef _ZX_BASIC_H
+#define _ZX_BASIC_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+
+#define ZX81_CHAR_TOKEN_LOW_START 0x40
+#define ZX81_CHAR_TOKEN_LOW_END   0x42
+
+#define ZX81_CHAR_TOKEN_HIGH_START 0xc0
+#define ZX81_CHAR_TOKEN_HIGH_END   0xff
+
+#define ZX_BASIC_STATE_SIZE 116
+#define ZX_BASIC_LINE_LAST  0x7676
+
+extern char *zx81_basic_tokens_low[3];
+
+extern char *zx81_basic_tokens[64];
+
+typedef struct _zx_basic_line {
+    uint16_t num, len;
+} zx_basic_line;
+
+enum zx_basic_token_type {
+    ZX_BASIC_TOKEN_UNKNOWN,
+    ZX_BASIC_TOKEN_ALNUM,
+    ZX_BASIC_TOKEN_QUOTE,
+    ZX_BASIC_TOKEN_SYMBOL,
+    ZX_BASIC_TOKEN_WORD,
+};
+
+ssize_t zx81_basic_dump(int fd, FILE *stream);
+
+#endif /* _ZX_BASIC_H */
diff --git a/include/zx/charset.h b/include/zx/charset.h
new file mode 100644
index 0000000..34f6eb8
--- /dev/null
+++ b/include/zx/charset.h
@@ -0,0 +1,40 @@
+#ifndef _ZX_CHARSET_H
+#define _ZX_CHARSET_H
+
+#include <stdio.h>
+#include <inttypes.h>
+
+#define ZX81_CHARSET_LEN 64
+
+#define ZX81_CHAR_LOW(c) \
+    (c <= ZX81_CHARSET_LEN)
+
+#define ZX81_CHAR_INVERSE_START 0x80
+#define ZX81_CHAR_INVERSE_END   0xbf
+
+#define ZX81_CHAR_INVERSE(c) \
+    (c >= ZX81_CHAR_INVERSE_START && c <= ZX81_CHAR_INVERSE_END)
+
+#define ZX81_CHAR_TOKEN_LOW(c) \
+    (c >= ZX81_CHAR_TOKEN_LOW_START && c <= ZX81_CHAR_TOKEN_LOW_END)
+
+#define ZX81_CHAR_NEWLINE(c) \
+    (c == 0x76)
+
+#define ZX81_CHAR_TOKEN_HIGH(c) \
+    (c >= 0xc0)
+
+#define ZX81_CHAR_TOKEN(c) \
+    (ZX81_CHAR_TOKEN_LOW(c) || ZX81_CHAR_TOKEN_HIGH(c))
+
+#define ZX81_CHAR_TOKEN_INTEGRAL(c) \
+    (c == 0x0e)
+
+#define ZX81_CHAR_TOKEN_FLOAT(c) \
+    (c == 0x7e)
+
+extern uint32_t zx81_charset[ZX81_CHARSET_LEN];
+
+int zx81_fputc(uint8_t c, int inverse, FILE *stream);
+
+#endif /* _ZX_CHARSET_H */
diff --git a/include/zx/hexdump.h b/include/zx/hexdump.h
new file mode 100644
index 0000000..5b38796
--- /dev/null
+++ b/include/zx/hexdump.h
@@ -0,0 +1,12 @@
+#ifndef _ZX81_HEXDUMP_H
+#define _ZX81_HEXDUMP_H
+
+#include <stdio.h>
+#include <sys/types.h>
+
+#define ZX81_HEXDUMP_STRIDE_LINE 16
+#define ZX81_HEXDUMP_STRIDE_GROUP 2
+
+ssize_t zx81_hexdump(int source_fd, FILE *stream);
+
+#endif /* _ZX81_HEXDUMP_H */