From c8623eb4c6c1464ffd49e83126e66d71ba5bf862 Mon Sep 17 00:00:00 2001
From: jaseg <git@jaseg.de>
Date: Mon, 2 Oct 2023 01:23:31 +0200
Subject: 8b10b issues

---
 common/8b10b_code_table.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 common/8b10b_code_table.c

(limited to 'common/8b10b_code_table.c')

diff --git a/common/8b10b_code_table.c b/common/8b10b_code_table.c
new file mode 100644
index 0000000..df2623a
--- /dev/null
+++ b/common/8b10b_code_table.c
@@ -0,0 +1,65 @@
+#include <stdio.h>
+#include <string.h>
+
+#include "8b10b.h"
+
+static const char * const rc_names[] = {
+    [K28_0] = "K.28.0",
+    [K28_1] = "K.28.1",
+    [K28_2] = "K.28.2",
+    [K28_3] = "K.28.3",
+    [K28_4] = "K.28.4",
+    [K28_5] = "K.28.5",
+    [K28_6] = "K.28.6",
+    [K28_7] = "K.28.7",
+    [K23_7] = "K.23.7",
+    [K27_7] = "K.27.7",
+    [K29_7] = "K.29.7",
+    [K30_7] = "K.30.7",
+};
+
+int hex_to_uint(const char *s, size_t len) {
+    if (len > 7)
+        return -2;
+
+    int acc = 0;
+    for (int i=0; i<len; i++) {
+        int digit = s[i];
+        if ('0' <= digit && digit <= '9')
+            digit -= '0';
+        else if ('a' <= digit && digit <= 'f')
+            digit -= 'a' - 0xa;
+        else if ('A' <= digit && digit <= 'F')
+            digit -= 'A' - 0xA;
+        else return -1;
+        acc = acc << 4 | digit;
+    }
+
+    return acc;
+}
+
+int main(void) {
+    struct state_8b10b_enc st;
+
+    printf("Comma symbols (RD -/+)\n");
+    for (int i=1; i<K_CODES_LAST; i++) {
+        st.rd = -1;
+        int sym_neg = xfr_8b10b_encode(&st, -i);
+        st.rd = +1;
+        int sym_pos = xfr_8b10b_encode(&st, -i);
+        printf("%s %010b %010b\n", rc_names[i], sym_neg, sym_pos);
+    }
+
+    printf("\n");
+    printf("Data symbols (RD -/+)\n");
+    for (int i=0; i<256; i++) {
+        st.rd = -1;
+        int sym_neg = xfr_8b10b_encode(&st, i);
+        st.rd = +1;
+        int sym_pos = xfr_8b10b_encode(&st, i);
+        printf("%02x %010b %010b\n", i, sym_neg, sym_pos);
+    }
+
+    return 0;
+}
+
-- 
cgit