From 0641cbc58f607b57df2a8f70d368bb5bef4f31d4 Mon Sep 17 00:00:00 2001
From: Dirk Engling <erdgeist@erdgeist.org>
Date: Tue, 19 May 2015 12:57:17 +0200
Subject: Clean up record dumper for version 2 to better match documentation

---
 src/export/split_version_2.c | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

(limited to 'src')

diff --git a/src/export/split_version_2.c b/src/export/split_version_2.c
index 324e61d..54e2313 100644
--- a/src/export/split_version_2.c
+++ b/src/export/split_version_2.c
@@ -98,16 +98,16 @@ static void finish_record( ) {
     g_state.outbuf[file][g_state.outfill[file]++] = '\n';
 }
 
-static uint16_t load_word( uint8_t *table_start, uint16_t base, int offset ) {
+static uint16_t load_word( uint8_t *record, uint16_t base, int offset ) {
   int dword_offset = offset >> 1;
 
   /* If a word(subflag, t_off) would span over the end of a 0x4000
      byte page, it is placed on the next page. All other words are
      shifted backwards, as well. */
   if( base + 4 + 4 * dword_offset > 0x1ffc )
-    table_start += 3 & ( 4 - ( base & 3 ) );
+    record += 3 & ( 4 - ( base & 3 ) );
 
-  return ((uint16_t*)table_start)[offset + 2];
+  return ((uint16_t*)record)[offset + 2];
 }
 
 static void dump_primary( uint8_t *end, uint32_t flags ) {
@@ -158,27 +158,26 @@ static void dump_primary( uint8_t *end, uint32_t flags ) {
   dump_field( &end, 15 );
 }
 
-static void act_on_record( uint8_t * end, uint16_t base ) {
-  uint16_t *rec  = (uint16_t*)end;
-  uint8_t  *e = end;
-  uint16_t num_dwords = rec[0];
-  uint16_t flagbytes  = rec[1];
+static void act_on_record( uint8_t * rec, uint16_t base ) {
+  uint16_t entries   = ((uint16_t*)rec)[0];
+  uint16_t flagbytes = ((uint16_t*)rec)[1];
   uint32_t flags = 0;
+  uint8_t  *end = rec;
   int i;
 
   while(flagbytes--) flags = (flags<<8) | *--end;
 
-//  printf( "-------- %03d: %06X\n", num_dwords, flags );
-  for (i = 0; i < num_dwords; i++ ) {
-    uint16_t subflag   = load_word( e, base, 2*i );
-    uint16_t t_off     = load_word( e, base, 2*i+1 );
+  //printf( "-------- %03d: %06X\n", entries, flags );
+  for (i = 0; i < entries; i++ ) {
+    uint16_t subflag   = load_word( rec, base, 2*i );
+    uint16_t t_off     = load_word( rec, base, 2*i+1 );
     uint8_t *rec_start = end - t_off;
 
     if (i == 0) {
-      dump_string( num_dwords > 1 ? (uint8_t*)"01" : (uint8_t*)"00", 2, 0 );
+      dump_string( entries > 1 ? (uint8_t*)"01" : (uint8_t*)"00", 2, 0 );
       dump_primary( rec_start, flags );
     } else {
-      uint8_t * rec_end = end - ( ( i+1 == num_dwords ) ? 0 : load_word( e, base, 2*i+3 ) );
+      uint8_t * rec_end = end - ( ( i+1 == entries ) ? 0 : load_word( rec, base, 2*i+3 ) );
       int file = g_outfilemap[g_cd][subflag&0x1F];
       if( subflag == 0x4003 ) {
         finish_record();
-- 
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