diff --git a/P8000_WDC_Emulator/P8000_WDC_Emulator/Debug/Makefile b/P8000_WDC_Emulator/P8000_WDC_Emulator/Debug/Makefile
index fb2a763..bc0c925 100755
--- a/P8000_WDC_Emulator/P8000_WDC_Emulator/Debug/Makefile
+++ b/P8000_WDC_Emulator/P8000_WDC_Emulator/Debug/Makefile
@@ -40,6 +40,7 @@ C_SRCS += \
../uart.c \
../wdc_if_pio.c \
../wdc_if_sdcard.c \
+../wdc_par.c \
../wdc_ram.c
@@ -55,6 +56,7 @@ mmc.o \
uart.o \
wdc_if_pio.o \
wdc_if_sdcard.o \
+wdc_par.o \
wdc_ram.o
@@ -64,6 +66,7 @@ mmc.o \
uart.o \
wdc_if_pio.o \
wdc_if_sdcard.o \
+wdc_par.o \
wdc_ram.o
@@ -73,6 +76,7 @@ mmc.d \
uart.d \
wdc_if_pio.d \
wdc_if_sdcard.d \
+wdc_par.d \
wdc_ram.d
@@ -82,6 +86,7 @@ mmc.d \
uart.d \
wdc_if_pio.d \
wdc_if_sdcard.d \
+wdc_par.d \
wdc_ram.d
@@ -107,6 +112,8 @@ OUTPUT_FILE_DEP:= ./makedep.mk
+
+
./%.o: .././%.c
@echo Building file: $<
@echo Invoking: AVR/GNU C Compiler : (AVR_8_bit_GNU_Toolchain_3.4.0_663) 4.6.2
diff --git a/P8000_WDC_Emulator/P8000_WDC_Emulator/Debug/makedep.mk b/P8000_WDC_Emulator/P8000_WDC_Emulator/Debug/makedep.mk
index 78fdc23..91e0f9c 100755
--- a/P8000_WDC_Emulator/P8000_WDC_Emulator/Debug/makedep.mk
+++ b/P8000_WDC_Emulator/P8000_WDC_Emulator/Debug/makedep.mk
@@ -12,5 +12,7 @@ wdc_if_pio.c
wdc_if_sdcard.c
+wdc_par.c
+
wdc_ram.c
diff --git a/P8000_WDC_Emulator/P8000_WDC_Emulator/P8000_WDC_Emulator.cproj b/P8000_WDC_Emulator/P8000_WDC_Emulator/P8000_WDC_Emulator.cproj
index 3c4dd7d..a619f77 100644
--- a/P8000_WDC_Emulator/P8000_WDC_Emulator/P8000_WDC_Emulator.cproj
+++ b/P8000_WDC_Emulator/P8000_WDC_Emulator/P8000_WDC_Emulator.cproj
@@ -45,28 +45,28 @@
- True
- True
- True
- True
- True
- Optimize (-O1)
- True
- True
- True
- True
- True
- True
- True
- True
-
-
- m
-
-
- True
- True
-
+ True
+ True
+ True
+ True
+ True
+ Optimize (-O1)
+ True
+ True
+ True
+ True
+ True
+ True
+ True
+ True
+
+
+ m
+
+
+ True
+ True
+
@@ -103,6 +103,12 @@
compile
+
+ compile
+
+
+ compile
+
compile
diff --git a/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_if_disk.c b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_if_disk.c
index 62536d0..120f870 100644
--- a/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_if_disk.c
+++ b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_if_disk.c
@@ -1,14 +1,16 @@
/*
* P8000 WDC Emulator
*
- * $Id: wdc_if_disk.c,v 1.5 2012/06/05 18:21:48 olivleh1 Exp $
+ * $Id: wdc_if_disk.c,v 1.6 2012/06/06 22:05:06 olivleh1 Exp $
*
*/
#include
#include "mmc.h"
#include "uart.h"
-extern uint8_t par_table[200];
+#include "wdc_par.h"
+
+extern uint8_t par_table[];
uint8_t wdc_init_sdcard()
{
@@ -17,24 +19,15 @@ uint8_t wdc_init_sdcard()
uint32_t wdc_sector2sdblock ( uint16_t req_cylinder, uint8_t req_head, uint8_t req_sector )
{
- /* TODO: no direct access of par_table - use getter functions instead - but only after speed is sufficient */
- /* +-------------------------------------------------------------- requested cylinder from P8000
- * | +----------------------------------------------- configured heads form the harddisk
- * | | +------------------------------- configured sectors for the harddisk
- * | | | +-------------- requested head from P8000
- * | | | | +-- configured sectors for the harddisk
- * | | | | | +---- requested sector from P8000 - 1 as we start counting with 0
- * | | | | | | */
- return ( ( req_cylinder * par_table[25] * par_table[26] ) + ( req_head * par_table[26] ) + ( req_sector - 1 ) );
+ return ( ( req_cylinder * wdc_get_hdd_heads() * wdc_get_hdd_sectors() )
+ + ( req_head * wdc_get_hdd_sectors() )
+ + ( req_sector - 1 ) );
}
uint32_t wdc_p8kblock2sdblock ( uint32_t blockno )
{
- /* TODO: no direct access of par_table - use getter functions instead - but only after speed is sufficient */
- /* +----------------------------------------------- configured heads form the harddisk
- * | +------------------------------- configured sectors for the harddisk
- * | |*/
- return ( blockno + ( par_table[25] * par_table[26] ) );
+ return ( blockno
+ + ( wdc_get_hdd_heads() * wdc_get_hdd_sectors() ) );
}
uint8_t wdc_write_sector ( uint32_t addr, uint8_t *sector )
@@ -82,7 +75,7 @@ uint8_t wdc_read_multiblock ( uint32_t addr, uint8_t *sector, uint8_t numblocks
uart_putc ( '\n' );
return errorcode;
} else
- return 0;
+ return 0;
}
uint8_t wdc_write_multiblock ( uint32_t addr, uint8_t *sector, uint8_t numblocks )
@@ -90,7 +83,7 @@ uint8_t wdc_write_multiblock ( uint32_t addr, uint8_t *sector, uint8_t numblocks
uint8_t errorcode;
errorcode = mmc_write_multiblock ( addr, sector, numblocks );
-// errorcode = mmc_write_multiblock_predef ( addr, sector, numblocks );
+ // errorcode = mmc_write_multiblock_predef ( addr, sector, numblocks );
if ( errorcode ) {
uart_puts_p ( PSTR ( " write error at address: " ) );
uart_putdw_dec ( addr );
@@ -99,5 +92,5 @@ uint8_t wdc_write_multiblock ( uint32_t addr, uint8_t *sector, uint8_t numblocks
uart_putc ( '\n' );
return errorcode;
} else
- return 0;
+ return 0;
}
\ No newline at end of file
diff --git a/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_main.c b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_main.c
index 36d96eb..6ed12b7 100644
--- a/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_main.c
+++ b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_main.c
@@ -1,11 +1,10 @@
/*
* P8000 WDC Emulator
*
- * $Id: wdc_main.c,v 1.12 2012/06/05 20:30:09 olivleh1 Exp $
+ * $Id: wdc_main.c,v 1.13 2012/06/06 22:05:06 olivleh1 Exp $
*
* TODO: - Different Errorcodes in the MMC layer (use defines)
* - errorchecking in several places
- * - Prio 1: more commandcodes
* - Prio 2: check if BTT is really cleaned when sa.format gets called all the time with a real drive
* ----------> no the old BTT from the previous formatting is shown
* ----------> check if after formatting, no BTT is written to the disk, the old BTT is still there
@@ -24,12 +23,17 @@
#include "main.h"
#include "uart.h"
#include "wdc_ram.h"
+#include "wdc_par.h"
#include "wdc_if_pio.h"
#include "wdc_if_sdcard.h"
#define DEBUG 1
#undef MEASURE_SDCARD_TIME
+/* switched from local to global for keeping an eye on memory usage */
+uint8_t data_buffer[4096];
+uint8_t cmd_buffer[9];
+
void atmega_setup ( void );
#ifdef MEASURE_SDCARD_TIME
diff --git a/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_main.h b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_main.h
index f262620..e659582 100644
--- a/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_main.h
+++ b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_main.h
@@ -1,7 +1,7 @@
/*
* P8000 WDC Emulator
*
- * $Id: wdc_main.h,v 1.8 2012/06/03 13:38:03 olivleh1 Exp $
+ * $Id: wdc_main.h,v 1.9 2012/06/06 22:05:06 olivleh1 Exp $
*
*/
@@ -10,12 +10,12 @@
#define MAIN_H_
#define CMD_RD_SECTOR 0x01 /* read data beginning at given sector */
-#define _CMD_WR_SECTOR 0x02 /* write sector */
-#define _CMD_FMT_TRACK 0x04 /* format a track */
+#define ___CMD_WR_SECTOR 0x02 /* write sector */
+#define ___CMD_FMT_TRACK 0x04 /* format a track */
#define CMD_RD_WDC_RAM 0x08 /* read data from WDC RAM */
-#define NO_CMD_RDBTT_SECTOR 0x11 /* read sector taking BTT into account */
-#define NO_CMD_WRBTT_SECTOR 0x12 /* write sector taking BTT into account */
-#define NO_CMD_FMTRD_TRACK 0x14 /* format and reread a track */
+#define ___CMD_RDBTT_SECTOR 0x11 /* read sector taking BTT into account */
+#define ___CMD_WRBTT_SECTOR 0x12 /* write sector taking BTT into account */
+#define ___CMD_FMTRD_TRACK 0x14 /* format and reread a track */
#define CMD_WR_WDC_RAM 0x18 /* write data to WDC RAM */
#define CMD_RD_BLOCK 0x21 /* read data beginning at given block */
#define CMD_WR_BLOCK 0x22 /* write data beginning at given block */
@@ -27,12 +27,12 @@
#define CMD_RD_BTTAB 0x58 /* read Bad Track Table from WDC RAM */
#define CMD_WR_BTTAB 0x68 /* write Bad Track Table to WDC RAM */
#define CMD_WR_PARTAB 0x78 /* write Parameter block to WDC RAM */
-#define NO_CMD_VER_SECTOR 0x81 /* verify sector */
-#define NO_CMD_WRRD_SECTOR 0x82 /* write and reread sector */
-#define NO_CMD_DL_TRACK 0x84 /* delete a track */
-#define NO_CMD_WRRDBTT_SECTOR 0x92 /* write and reread sector taking BTT into account */
-#define NO_CMD_CP_BLOCK 0xa1 /* copy block from drive 1 to drive 0 */
-#define NO_CMD_WRRD_BLOCK 0xa2 /* write and reread block */
-#define CMD_ST_PARBTT 0xc2 /* store PAR and BTT on harddisk */
+#define ___CMD_VER_SECTOR 0x81 /* verify sector */
+#define ___CMD_WRRD_SECTOR 0x82 /* write and reread sector */
+#define ___CMD_DL_TRACK 0x84 /* delete a track */
+#define ___CMD_WRRDBTT_SECTOR 0x92 /* write and reread sector taking BTT into account */
+#define ___CMD_CP_BLOCK 0xa1 /* copy block from drive 1 to drive 0 */
+#define ___CMD_WRRD_BLOCK 0xa2 /* write and reread block */
+#define CMD_ST_PARBTT 0xc2 /* store PAR and BTT on hard disk */
#endif /* MAIN_H_ */
diff --git a/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_par.c b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_par.c
new file mode 100644
index 0000000..a69ae36
--- /dev/null
+++ b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_par.c
@@ -0,0 +1,114 @@
+/*
+ * P8000 WDC Emulator
+ *
+ * $Id: wdc_par.c,v 1.1 2012/06/06 22:05:06 olivleh1 Exp $
+ *
+ */
+
+#include
+#include "wdc_par.h"
+
+uint8_t par_table[512] = {'W', 'D', 'C', '_', '4', '.', '2', 0x00, 'R', 'O', 'B', ' ', 'K', '5', '5', '0',
+ '4', '.', '5', '0', 0x00, 0x00, 0x00, 0x00, 0x04, 0x05, 0x12, 0x00, 0x04, 0x01, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa5, 0x67, 0x01, 0x00, 0x01, 0x01,
+ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+ };
+
+
+void wdc_read_par_table ( uint8_t *buffer, uint16_t count )
+{
+ do {
+ count--;
+ buffer[count] = par_table[count];
+ } while ( count > 0 );
+}
+
+void wdc_write_par_table ( uint8_t *buffer, uint16_t count )
+{
+ do {
+ count--;
+ par_table[count] = buffer[count];
+ } while ( count > 0 );
+}
+
+
+void wdc_read_wdc_par ( uint8_t *buffer, uint16_t count )
+{
+ do {
+ count--;
+ buffer[count] = par_table[count + POS_PAR_WDC_PAR];
+ } while ( count > 0 );
+}
+
+void wdc_write_wdc_par ( uint8_t *buffer, uint16_t count )
+{
+ do {
+ count--;
+ par_table[count + POS_PAR_WDC_PAR] = buffer[count];
+ } while ( count > 0 );
+}
+
+void wdc_del_wdc_btt()
+{
+ uint8_t i;
+ for ( i = 0; i < 125; i++ )
+ par_table[i + POS_PAR_WDC_BTT] = 0x00;
+ par_table[122 + POS_PAR_WDC_BTT] = 0xff;
+}
+
+void wdc_read_wdc_btt ( uint8_t *buffer, uint16_t count )
+{
+ do {
+ count--;
+ buffer[count] = par_table[count + POS_PAR_WDC_BTT];
+ } while ( count > 0 );
+}
+
+void wdc_write_wdc_btt ( uint8_t *buffer, uint16_t count )
+{
+ do {
+ count--;
+ par_table[count + POS_PAR_WDC_BTT] = buffer[count];
+ } while ( count > 0 );
+}
+
+uint16_t wdc_get_btt_count()
+{
+ return ( ( par_table[0 + POS_PAR_WDC_BTT] | ( par_table[1 + POS_PAR_WDC_BTT] << 8 ) ) );
+}
+
+void wdc_set_btt_count ( uint16_t btt_count )
+{
+ par_table[0 + POS_PAR_WDC_BTT] = ( uint8_t ) btt_count;
+ par_table[1 + POS_PAR_WDC_BTT] = ( btt_count >> 8 );
+}
+
+uint8_t wdc_add_btt_entry ( uint16_t cylinder, uint8_t head )
+{
+ uint16_t btt_count = wdc_get_btt_count();
+
+ if ( btt_count < 120 ) {
+ /* +2 because btt_count is just the amount of bytes for the BTT - but in front of it, there are two bytes */
+ /* storing the amount of bytes for the BTT */
+ par_table[btt_count + 2 + POS_PAR_WDC_BTT] = ( cylinder >> 8 );
+ btt_count++;
+ par_table[btt_count + 2 + POS_PAR_WDC_BTT] = ( uint8_t ) cylinder;
+ btt_count++;
+ par_table[btt_count + 2 + POS_PAR_WDC_BTT] = ( uint8_t ) head;
+ btt_count++;
+ wdc_set_btt_count ( btt_count );
+ return ( 0 );
+ } else {
+ return ( 1 );
+ }
+}
+
+uint8_t wdc_get_hdd_sectors()
+{
+ return ( par_table[18 + POS_PAR_WDC_PAR] );
+}
+
+uint8_t wdc_get_hdd_heads()
+{
+ return ( par_table[17 + POS_PAR_WDC_PAR] );
+}
diff --git a/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_par.h b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_par.h
new file mode 100644
index 0000000..f6a37cc
--- /dev/null
+++ b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_par.h
@@ -0,0 +1,34 @@
+/*
+ * P8000 WDC Emulator
+ *
+ * $IdS$
+ *
+ */
+
+#ifndef WDC_PAR_H_
+#define WDC_PAR_H_
+
+extern void wdc_read_par_table ( uint8_t *buffer, uint16_t count );
+extern void wdc_write_par_table ( uint8_t *buffer, uint16_t count );
+
+extern void wdc_read_wdc_par ( uint8_t *buffer, uint16_t count );
+extern void wdc_write_wdc_par ( uint8_t *buffer, uint16_t count );
+
+extern void wdc_del_wdc_btt();
+extern void wdc_read_wdc_btt ( uint8_t *buffer, uint16_t count );
+extern void wdc_write_wdc_btt ( uint8_t *buffer, uint16_t count );
+extern uint16_t wdc_get_btt_count();
+extern uint8_t wdc_add_btt_entry ( uint16_t cylinder, uint8_t head );
+
+extern uint8_t wdc_get_hdd_sectors();
+extern uint8_t wdc_get_hdd_heads();
+
+#define POS_PAR_VERSION 0
+#define POS_PAR_WDC_PAR 8
+#define POS_PAR_WDC_BTT 88
+
+#define SIZE_PAR_VERSION 8
+#define SIZE_PAR_WDC_PAR 80
+#define SIZE_PAR_WDC_BTT 125
+
+#endif /* WDC_PAR_H_ */
\ No newline at end of file
diff --git a/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_ram.c b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_ram.c
index abc0c56..4b844cb 100644
--- a/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_ram.c
+++ b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_ram.c
@@ -1,7 +1,7 @@
/*
* P8000 WDC Emulator
*
- * $Id: wdc_ram.c,v 1.3 2012/06/02 00:51:55 olivleh1 Exp $
+ * $Id: wdc_ram.c,v 1.4 2012/06/06 22:05:06 olivleh1 Exp $
*
*/
@@ -9,11 +9,6 @@
#include "wdc_ram.h"
uint8_t wdc_ram[2048];
-uint8_t par_table[512] = {'W', 'D', 'C', '_', '4', '.', '2', 0x00, 'R', 'O', 'B', ' ', 'K', '5', '5', '0',
- '4', '.', '5', '0', 0x00, 0x00, 0x00, 0x00, 0x04, 0x05, 0x12, 0x00, 0x04, 0x01, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa5, 0x67, 0x01, 0x00, 0x01, 0x01,
- 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
- };
void wdc_write_data_to_ram ( uint8_t *buffer, uint16_t address, uint16_t count )
{
@@ -30,97 +25,3 @@ void wdc_read_data_from_ram ( uint8_t *buffer, uint16_t address, uint16_t count
buffer[count] = wdc_ram[address + count];
} while ( count > 0 );
}
-
-
-void wdc_read_par_table ( uint8_t *buffer, uint16_t count )
-{
- do {
- count--;
- buffer[count] = par_table[count];
- } while ( count > 0 );
-}
-
-void wdc_write_par_table ( uint8_t *buffer, uint16_t count )
-{
- do {
- count--;
- par_table[count] = buffer[count];
- } while ( count > 0 );
-}
-
-
-void wdc_read_wdc_par ( uint8_t *buffer, uint16_t count )
-{
- do {
- count--;
- buffer[count] = par_table[count + POS_PAR_WDC_PAR];
- } while ( count > 0 );
-}
-
-void wdc_write_wdc_par ( uint8_t *buffer, uint16_t count )
-{
- do {
- count--;
- par_table[count + POS_PAR_WDC_PAR] = buffer[count];
- } while ( count > 0 );
-}
-
-void wdc_del_wdc_btt()
-{
- uint8_t i;
- for ( i = 0; i < 125; i++ )
- par_table[i + POS_PAR_WDC_BTT] = 0x00;
- par_table[122 + POS_PAR_WDC_BTT] = 0xff;
-}
-
-void wdc_read_wdc_btt ( uint8_t *buffer, uint16_t count )
-{
- do {
- count--;
- buffer[count] = par_table[count + POS_PAR_WDC_BTT];
- } while ( count > 0 );
-}
-
-void wdc_write_wdc_btt ( uint8_t *buffer, uint16_t count )
-{
- do {
- count--;
- par_table[count + POS_PAR_WDC_BTT] = buffer[count];
- } while ( count > 0 );
-}
-
-uint16_t wdc_get_btt_count()
-{
- return ( ( par_table[0 + POS_PAR_WDC_BTT] | ( par_table[1 + POS_PAR_WDC_BTT] << 8 ) ) );
-}
-
-void wdc_set_btt_count ( uint16_t btt_count )
-{
- par_table[0 + POS_PAR_WDC_BTT] = ( uint8_t ) btt_count;
- par_table[1 + POS_PAR_WDC_BTT] = ( btt_count >> 8 );
-}
-
-uint8_t wdc_add_btt_entry ( uint16_t cylinder, uint8_t head )
-{
- uint16_t btt_count = wdc_get_btt_count();
-
- if ( btt_count < 120 ) {
- /* +2 because btt_count is just the amount of bytes for the BTT - but in front of it, there are two bytes */
- /* storing the amount of bytes for the BTT */
- par_table[btt_count + 2 + POS_PAR_WDC_BTT] = ( cylinder >> 8 );
- btt_count++;
- par_table[btt_count + 2 + POS_PAR_WDC_BTT] = ( uint8_t ) cylinder;
- btt_count++;
- par_table[btt_count + 2 + POS_PAR_WDC_BTT] = ( uint8_t ) head;
- btt_count++;
- wdc_set_btt_count ( btt_count );
- return ( 0 );
- } else {
- return ( 1 );
- }
-}
-
-uint8_t wdc_get_hdd_sectors()
-{
- return ( par_table[18 + POS_PAR_WDC_PAR] );
-}
\ No newline at end of file
diff --git a/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_ram.h b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_ram.h
index f2f0606..e9a30ab 100644
--- a/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_ram.h
+++ b/P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_ram.h
@@ -1,42 +1,16 @@
/*
* P8000 WDC Emulator
*
- * $Id: wdc_ram.h,v 1.3 2012/06/05 20:30:09 olivleh1 Exp $
+ * $Id: wdc_ram.h,v 1.4 2012/06/06 22:05:06 olivleh1 Exp $
*
*/
#ifndef WDC_RAM_H_
#define WDC_RAM_H_
-void wdc_write_data_to_ram ( uint8_t *buffer, uint16_t address, uint16_t count );
-void wdc_read_data_from_ram ( uint8_t *buffer, uint16_t address, uint16_t count );
-
-void wdc_read_par_table ( uint8_t *buffer, uint16_t count );
-void wdc_write_par_table ( uint8_t *buffer, uint16_t count );
-
-void wdc_read_wdc_par ( uint8_t *buffer, uint16_t count );
-void wdc_write_wdc_par ( uint8_t *buffer, uint16_t count );
-
-void wdc_del_wdc_btt();
-void wdc_read_wdc_btt ( uint8_t *buffer, uint16_t count );
-void wdc_write_wdc_btt ( uint8_t *buffer, uint16_t count );
-uint16_t wdc_get_btt_count();
-uint8_t wdc_add_btt_entry ( uint16_t cylinder, uint8_t head );
-
-uint8_t wdc_get_hdd_sectors();
+extern void wdc_write_data_to_ram ( uint8_t *buffer, uint16_t address, uint16_t count );
+extern void wdc_read_data_from_ram ( uint8_t *buffer, uint16_t address, uint16_t count );
#define convert_ram_address(x) ((x) - 0x2000) /* The S-RAM of the original WDC hardware starts at 0x2000. We use an array as RAM here and no direct RAM access */
-#define POS_PAR_VERSION 0
-#define POS_PAR_WDC_PAR 8
-#define POS_PAR_WDC_BTT 88
-
-#define SIZE_PAR_VERSION 8
-#define SIZE_PAR_WDC_PAR 80
-#define SIZE_PAR_WDC_BTT 125
-
-/* switched from local to global for keeping an eye on memory usage */
-uint8_t data_buffer[4096];
-uint8_t cmd_buffer[9];
-
#endif /* WDC_RAM_H_ */
\ No newline at end of file