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// S19toVHD.cpp : Defines the entry point for the console application.
//
 
/*
* epedit
*
* binary file editer program
*/
#include <stdio.h>
#include <string.h>
#include <ctype.h>
/*
* equates
*/
#define EPROM_MAX (1<<16)
#define CMD_LINE_MAX 80
#define FALSE 0
#define TRUE !FALSE
#define BINARY 0
#define MOTOROLA 1
#define INTEL 2
#define SMAL32 3
#define VHDL_BIN 4
#define VHDL_BYTE 5
#define VHDL_WORD 6
 
/*
* global variables
*/
FILE *cmdfp;                            /* command input pointer */
char cmdbuff[CMD_LINE_MAX];
unsigned char eprom_buff[EPROM_MAX];    /* eprom buffer */
int eprom_top;                          /* top of EPROM buffer */
int mod_flag;                           /* buffer has been modified */
int auxflag;                            /* Auxillary input file specified */
int count;
int checksum;
int offset;                             /* Eprom Buffer memory offset */
int format_type;                        /* load / save format type */
char *hex_str = "0123456789ABCDEF";
 
 
/*
* compare a string of specified length
* return TRUE if a match
* return FALSE if no match
* ignore case
*/
int str_equal( char *s1, char *s2, int len )
{
        int i;
 
        i = 0;
        while( i<len )
        {
                if( toupper( s1[i] ) == toupper( s2[i] ) )
                        i++;
                else return FALSE;
        }
        return TRUE;
}
 
 
int to_hexadecimal( char c )
{
        int k;
 
        for( k=0; k<16; k++ )
        {
                if( toupper(c) == hex_str[k] )
                        return k;
        }
        return -1;
}
 
/*
* extract an address from the command line
* returns an offset to the end of the argument.
*/
int get_address( char *cb, int *addr )
{
        int i, j, k;
 
        j = 0;
        i = 0;
 
        while((k = to_hexadecimal(cb[i])) != -1)
        {
                i++;
                j = j *16 + k;
        }
        *addr = j;
        if( i == 0 )
                return i;
        while( isspace( cb[i]) )
                i++;
        return i;
}
 
 
/*
* Motorola S1 format to Intel hex format
* Usage
* mot2hex <file_name>
*/
 
int gethex( FILE *fp_in )
{
        int hex;
 
        hex = fgetc( fp_in );
        return( to_hexadecimal( hex ) );
}
 
int get2hex( FILE *fp_in )
{
        int hexhi, hexlo, byte;
 
        hexhi = gethex( fp_in );
        if( hexhi != -1 )
        {
                hexlo = gethex( fp_in );
                if( hexlo != -1 )
                {
                        byte = hexhi * 16 + hexlo;
                        checksum = (checksum + byte) & 0xff;
                        return byte;
                }
        }
        return -1;
}
 
int get4hex( FILE *fp_in )
{
        int bytehi, bytelo, addr;
 
        bytehi = get2hex( fp_in );
        if( bytehi != -1 )
        {
                bytelo = get2hex( fp_in );
                if( bytelo != -1 )
                {
                        addr = (bytehi * 256) + bytelo;
                        return addr;
                }
        }
        return -1;
}
 
int get6hex( FILE *fp_in )
{
        int bytehi, bytemid, bytelow, addr;
 
        bytehi = get2hex( fp_in );
        if( bytehi != -1 )
        {
                bytemid = get2hex( fp_in );
                if( bytemid != -1 )
                {
                        bytelow = get2hex( fp_in );
                        if( bytelow != -1 )
                        {
                                addr = (bytehi << 16) + (bytemid << 8) + bytelow;
                                return addr;
                        }
                }
        }
        return -1;
}
 
long get8hex( FILE *fp_in )
{
        int wordhi, wordlow;
        long addr;
 
        wordhi = get4hex( fp_in );
        if( wordhi != -1 )
        {
                wordlow = get4hex( fp_in );
                if( wordlow != -1 )
                {
                        addr = ((long)wordhi << 16) + (long)wordlow;
                        return addr;
                }
        }
        return -1;
}
 
 
 
 
/*
* load motorola formatted file
*/
 
void load_mot( char *fname_in )
{
        FILE *fp_in;
        int byte, addr, i;
 
        fp_in = fopen( fname_in, "r" );
        if( !fp_in )
        {
                printf( "\nCan't open %s", fname_in );
                return;
        }
 
        byte = 0;
        addr = 0;
 
        while( byte != -1 )
        {
                do {
                        byte = fgetc( fp_in);
                } while( (byte != 'S') && (byte != -1) );
 
                byte = fgetc( fp_in );
                checksum = 0;
                if( (byte == '1') || (byte == '2') )
                {
                        count = get2hex( fp_in );
                        if( byte == '1' )
                        {
                                addr = get4hex( fp_in );
                                count -= 3;
                        }
                        else
                        {
                                addr = get6hex( fp_in );
                                count -= 4;
                        }
                        for( i=0; i<count; i++ )
                        {
                                byte = get2hex( fp_in );
                                eprom_buff[( addr - offset) % EPROM_MAX ] = (unsigned char)byte;
                                addr++;
                        }
                        byte = get2hex( fp_in);
                        checksum = (~checksum) & 0xff;
                        if( checksum != 0 )
                                printf( "\nchecksum error - read check = %02x", byte );
                }
        }
        fclose( fp_in );
}
 
 
 
 
int put2hex( FILE *fp, int h )
{
        int i, hex;
 
        hex = (h & 0xf0)>>4;
        i = fputc( (int)hex_str[hex], fp );
        hex = (h & 0xf);
        i = fputc( (int)hex_str[hex], fp );
        checksum = (checksum + h) & 0xff;
        return i;
}
 
int put4hex( FILE * fp, int h )
{
        int i;
 
        i = put2hex( fp, (h & 0xff00 )>>8 );
        i = put2hex( fp, (h & 0xff) );
        return i;
}
 
 
/*
* save VHDL hexadecimal file
*/
 
void save_vhdl_byte( FILE *fp_out, char *entity_name, int start_addr, int end_addr )
{
        int addr;
        int i,j;
        int byte;
 
        j=0;
        fprintf(fp_out, "library IEEE;\n");
        fprintf(fp_out, "   use IEEE.std_logic_1164.all;\n");
        fprintf(fp_out, "   use IEEE.std_logic_arith.all;\n");
        fprintf(fp_out, "library unisim;\n");
        fprintf(fp_out, "   use unisim.vcomponents.all;\n");
        fprintf(fp_out, "\n");
        fprintf(fp_out, "entity %s is\n", entity_name);
        fprintf(fp_out, "   port(\n");
        fprintf(fp_out, "      clk    : in  std_logic;\n");
        fprintf(fp_out, "      rst    : in  std_logic;\n");
        fprintf(fp_out, "      cs     : in  std_logic;\n");
        fprintf(fp_out, "      rw     : in  std_logic;\n");
        fprintf(fp_out, "      addr   : in  std_logic_vector(10 downto 0);\n");
        fprintf(fp_out, "      rdata  : out std_logic_vector(7 downto 0);\n");
        fprintf(fp_out, "      wdata  : in  std_logic_vector(7 downto 0)\n");
        fprintf(fp_out, "   );\n");
        fprintf(fp_out, "end %s;\n", entity_name);
        fprintf(fp_out, "\n");
        fprintf(fp_out, "architecture rtl of %s is\n", entity_name);
        fprintf(fp_out, "   signal we : std_logic;\n");
        fprintf(fp_out, "   signal dp : std_logic;\n");
        fprintf(fp_out, "begin\n");
        fprintf(fp_out, "   ROM: RAMB16_S9\n");
        fprintf(fp_out, "      generic map (\n");
 
        for( addr=start_addr; addr<=end_addr; addr+=32 )
        {
                fprintf( fp_out, "         INIT_%02x => x\"", j );
                for(i=31; i>=0; i-- )
                {
                        byte = (int)eprom_buff[(addr - offset + i) % EPROM_MAX];
                        putc( hex_str[(byte >>4) & 0xf], fp_out );
                        putc( hex_str[byte & 0xf], fp_out );
                }
                if (addr+32 < end_addr) {
                        fprintf( fp_out, "\",\n" );
                } else {
                        fprintf( fp_out, "\"\n" );
                }
                j++;
        }
        fprintf(fp_out, "      )\n");
        fprintf(fp_out, "      port map (\n");
        fprintf(fp_out, "         do    => rdata,\n");
        fprintf(fp_out, "         dop(0)  => dp,\n");
        fprintf(fp_out, "         addr    => addr,\n");
        fprintf(fp_out, "         clk     => clk,\n");
        fprintf(fp_out, "         di      => wdata,\n");
        fprintf(fp_out, "         dip(0)  => dp,\n");
        fprintf(fp_out, "         en      => cs,\n");
        fprintf(fp_out, "         ssr     => rst,\n");
        fprintf(fp_out, "         we      => we\n");
        fprintf(fp_out, "      );\n");
        fprintf(fp_out, "   drive_we: process (rw)\n");
        fprintf(fp_out, "   begin\n");
        fprintf(fp_out, "      we <= not rw;\n");
        fprintf(fp_out, "   end process;\n");
        fprintf(fp_out, "end architecture rtl;\n\n");
 
}
 
 
 
 
/*
* epedit main program
*/
int main(int argc, char* argv[])
{
        int start_addr;
        int end_addr;
        int arglen;
        char entity_name_buf[512];
        char hdl_file_buf[1024];
        char buf[1024];
        char *curpos;
        FILE *fp_out;
 
        if (argc < 5) {
                printf("Usage: s19tovhd <s19 file> <base vhd file> <vhdl base entity name> <addr> [<addr> ...]\n");
                return(-1);
        }
        printf("Reading Motorola S19 from file '%s'\n", argv[1]);
        printf("VHDL file name '%s'\n", argv[2]);
        printf("Base RAM/ROM entity name is '%s'\n", argv[3]);
        load_mot( argv[1] );
        if( (fp_out = fopen( argv[2], "w" )) == NULL ) {
                printf( "\nCan't open '%s' for write ", argv[2] );
                return(-1);
        }
 
        for (int cnt=4; cnt<argc; cnt++) {
                if( (arglen = get_address( argv[cnt], &start_addr )) == 0 ) {
                        printf("Expected hex start address, got %s\n", argv[cnt]);
                        continue;
                }
                end_addr = start_addr + 2047;
                sprintf(entity_name_buf, "%s_%4X", argv[3], start_addr);
 
                printf("Entity '%s' (address range '0x%4X'-'0x%4X') written to file '%s'\n",
                        entity_name_buf, start_addr, end_addr, argv[2]);
                save_vhdl_byte( fp_out, entity_name_buf, start_addr, end_addr );
        }
        if (fp_out) fclose(fp_out);
        return(0);
}
 

Line No.	Rev	Author	Line
1	25	davidgb	`// S19toVHD.cpp : Defines the entry point for the console application.`
2			`//`
3
4			`/*`
5			`* epedit`
6			`*`
7			`* binary file editer program`
8			`*/`
9			`#include <stdio.h>`
10			`#include <string.h>`
11			`#include <ctype.h>`
12			`/*`
13			`* equates`
14			`*/`
15			`#define EPROM_MAX (1<<16)`
16			`#define CMD_LINE_MAX 80`
17			`#define FALSE 0`
18			`#define TRUE !FALSE`
19			`#define BINARY 0`
20			`#define MOTOROLA 1`
21			`#define INTEL 2`
22			`#define SMAL32 3`
23			`#define VHDL_BIN 4`
24			`#define VHDL_BYTE 5`
25			`#define VHDL_WORD 6`
26
27			`/*`
28			`* global variables`
29			`*/`
30			`FILE cmdfp; / command input pointer */`
31			`char cmdbuff[CMD_LINE_MAX];`
32			`unsigned char eprom_buff[EPROM_MAX]; /* eprom buffer */`
33			`int eprom_top; /* top of EPROM buffer */`
34			`int mod_flag; /* buffer has been modified */`
35			`int auxflag; /* Auxillary input file specified */`
36			`int count;`
37			`int checksum;`
38			`int offset; /* Eprom Buffer memory offset */`
39			`int format_type; /* load / save format type */`
40			`char *hex_str = "0123456789ABCDEF";`
41
42
43			`/*`
44			`* compare a string of specified length`
45			`* return TRUE if a match`
46			`* return FALSE if no match`
47			`* ignore case`
48			`*/`
49			`int str_equal( char s1, char s2, int len )`
50			`{`
51			`int i;`
52
53			`i = 0;`
54			`while( i<len )`
55			`{`
56			`if( toupper( s1[i] ) == toupper( s2[i] ) )`
57			`i++;`
58			`else return FALSE;`
59			`}`
60			`return TRUE;`
61			`}`
62
63
64			`int to_hexadecimal( char c )`
65			`{`
66			`int k;`
67
68			`for( k=0; k<16; k++ )`
69			`{`
70			`if( toupper(c) == hex_str[k] )`
71			`return k;`
72			`}`
73			`return -1;`
74			`}`
75
76			`/*`
77			`* extract an address from the command line`
78			`* returns an offset to the end of the argument.`
79			`*/`
80			`int get_address( char cb, int addr )`
81			`{`
82			`int i, j, k;`
83
84			`j = 0;`
85			`i = 0;`
86
87			`while((k = to_hexadecimal(cb[i])) != -1)`
88			`{`
89			`i++;`
90			`j = j *16 + k;`
91			`}`
92			`*addr = j;`
93			`if( i == 0 )`
94			`return i;`
95			`while( isspace( cb[i]) )`
96			`i++;`
97			`return i;`
98			`}`
99
100
101			`/*`
102			`* Motorola S1 format to Intel hex format`
103			`* Usage`
104			`* mot2hex <file_name>`
105			`*/`
106
107			`int gethex( FILE *fp_in )`
108			`{`
109			`int hex;`
110
111			`hex = fgetc( fp_in );`
112			`return( to_hexadecimal( hex ) );`
113			`}`
114
115			`int get2hex( FILE *fp_in )`
116			`{`
117			`int hexhi, hexlo, byte;`
118
119			`hexhi = gethex( fp_in );`
120			`if( hexhi != -1 )`
121			`{`
122			`hexlo = gethex( fp_in );`
123			`if( hexlo != -1 )`
124			`{`
125			`byte = hexhi * 16 + hexlo;`
126			`checksum = (checksum + byte) & 0xff;`
127			`return byte;`
128			`}`
129			`}`
130			`return -1;`
131			`}`
132
133			`int get4hex( FILE *fp_in )`
134			`{`
135			`int bytehi, bytelo, addr;`
136
137			`bytehi = get2hex( fp_in );`
138			`if( bytehi != -1 )`
139			`{`
140			`bytelo = get2hex( fp_in );`
141			`if( bytelo != -1 )`
142			`{`
143			`addr = (bytehi * 256) + bytelo;`
144			`return addr;`
145			`}`
146			`}`
147			`return -1;`
148			`}`
149
150			`int get6hex( FILE *fp_in )`
151			`{`
152			`int bytehi, bytemid, bytelow, addr;`
153
154			`bytehi = get2hex( fp_in );`
155			`if( bytehi != -1 )`
156			`{`
157			`bytemid = get2hex( fp_in );`
158			`if( bytemid != -1 )`
159			`{`
160			`bytelow = get2hex( fp_in );`
161			`if( bytelow != -1 )`
162			`{`
163			`addr = (bytehi << 16) + (bytemid << 8) + bytelow;`
164			`return addr;`
165			`}`
166			`}`
167			`}`
168			`return -1;`
169			`}`
170
171			`long get8hex( FILE *fp_in )`
172			`{`
173			`int wordhi, wordlow;`
174			`long addr;`
175
176			`wordhi = get4hex( fp_in );`
177			`if( wordhi != -1 )`
178			`{`
179			`wordlow = get4hex( fp_in );`
180			`if( wordlow != -1 )`
181			`{`
182			`addr = ((long)wordhi << 16) + (long)wordlow;`
183			`return addr;`
184			`}`
185			`}`
186			`return -1;`
187			`}`
188
189
190
191
192			`/*`
193			`* load motorola formatted file`
194			`*/`
195
196			`void load_mot( char *fname_in )`
197			`{`
198			`FILE *fp_in;`
199			`int byte, addr, i;`
200
201			`fp_in = fopen( fname_in, "r" );`
202			`if( !fp_in )`
203			`{`
204			`printf( "\nCan't open %s", fname_in );`
205			`return;`
206			`}`
207
208			`byte = 0;`
209			`addr = 0;`
210
211			`while( byte != -1 )`
212			`{`
213			`do {`
214			`byte = fgetc( fp_in);`
215			`} while( (byte != 'S') && (byte != -1) );`
216
217			`byte = fgetc( fp_in );`
218			`checksum = 0;`
219			`if( (byte == '1') \|\| (byte == '2') )`
220			`{`
221			`count = get2hex( fp_in );`
222			`if( byte == '1' )`
223			`{`
224			`addr = get4hex( fp_in );`
225			`count -= 3;`
226			`}`
227			`else`
228			`{`
229			`addr = get6hex( fp_in );`
230			`count -= 4;`
231			`}`
232			`for( i=0; i<count; i++ )`
233			`{`
234			`byte = get2hex( fp_in );`
235			`eprom_buff[( addr - offset) % EPROM_MAX ] = (unsigned char)byte;`
236			`addr++;`
237			`}`
238			`byte = get2hex( fp_in);`
239			`checksum = (~checksum) & 0xff;`
240			`if( checksum != 0 )`
241			`printf( "\nchecksum error - read check = %02x", byte );`
242			`}`
243			`}`
244			`fclose( fp_in );`
245			`}`
246
247
248
249
250			`int put2hex( FILE *fp, int h )`
251			`{`
252			`int i, hex;`
253
254			`hex = (h & 0xf0)>>4;`
255			`i = fputc( (int)hex_str[hex], fp );`
256			`hex = (h & 0xf);`
257			`i = fputc( (int)hex_str[hex], fp );`
258			`checksum = (checksum + h) & 0xff;`
259			`return i;`
260			`}`
261
262			`int put4hex( FILE * fp, int h )`
263			`{`
264			`int i;`
265
266			`i = put2hex( fp, (h & 0xff00 )>>8 );`
267			`i = put2hex( fp, (h & 0xff) );`
268			`return i;`
269			`}`
270
271
272			`/*`
273			`* save VHDL hexadecimal file`
274			`*/`
275
276			`void save_vhdl_byte( FILE fp_out, char entity_name, int start_addr, int end_addr )`
277			`{`
278			`int addr;`
279			`int i,j;`
280			`int byte;`
281
282			`j=0;`
283			`fprintf(fp_out, "library IEEE;\n");`
284			`fprintf(fp_out, " use IEEE.std_logic_1164.all;\n");`
285			`fprintf(fp_out, " use IEEE.std_logic_arith.all;\n");`
286			`fprintf(fp_out, "library unisim;\n");`
287			`fprintf(fp_out, " use unisim.vcomponents.all;\n");`
288			`fprintf(fp_out, "\n");`
289			`fprintf(fp_out, "entity %s is\n", entity_name);`
290			`fprintf(fp_out, " port(\n");`
291			`fprintf(fp_out, " clk : in std_logic;\n");`
292			`fprintf(fp_out, " rst : in std_logic;\n");`
293			`fprintf(fp_out, " cs : in std_logic;\n");`
294			`fprintf(fp_out, " rw : in std_logic;\n");`
295			`fprintf(fp_out, " addr : in std_logic_vector(10 downto 0);\n");`
296			`fprintf(fp_out, " rdata : out std_logic_vector(7 downto 0);\n");`
297			`fprintf(fp_out, " wdata : in std_logic_vector(7 downto 0)\n");`
298			`fprintf(fp_out, " );\n");`
299			`fprintf(fp_out, "end %s;\n", entity_name);`
300			`fprintf(fp_out, "\n");`
301			`fprintf(fp_out, "architecture rtl of %s is\n", entity_name);`
302			`fprintf(fp_out, " signal we : std_logic;\n");`
303			`fprintf(fp_out, " signal dp : std_logic;\n");`
304			`fprintf(fp_out, "begin\n");`
305			`fprintf(fp_out, " ROM: RAMB16_S9\n");`
306			`fprintf(fp_out, " generic map (\n");`
307
308			`for( addr=start_addr; addr<=end_addr; addr+=32 )`
309			`{`
310			`fprintf( fp_out, " INIT_%02x => x\"", j );`
311			`for(i=31; i>=0; i-- )`
312			`{`
313			`byte = (int)eprom_buff[(addr - offset + i) % EPROM_MAX];`
314			`putc( hex_str[(byte >>4) & 0xf], fp_out );`
315			`putc( hex_str[byte & 0xf], fp_out );`
316			`}`
317			`if (addr+32 < end_addr) {`
318			`fprintf( fp_out, "\",\n" );`
319			`} else {`
320			`fprintf( fp_out, "\"\n" );`
321			`}`
322			`j++;`
323			`}`
324			`fprintf(fp_out, " )\n");`
325			`fprintf(fp_out, " port map (\n");`
326			`fprintf(fp_out, " do => rdata,\n");`
327			`fprintf(fp_out, " dop(0) => dp,\n");`
328			`fprintf(fp_out, " addr => addr,\n");`
329			`fprintf(fp_out, " clk => clk,\n");`
330			`fprintf(fp_out, " di => wdata,\n");`
331			`fprintf(fp_out, " dip(0) => dp,\n");`
332			`fprintf(fp_out, " en => cs,\n");`
333			`fprintf(fp_out, " ssr => rst,\n");`
334			`fprintf(fp_out, " we => we\n");`
335			`fprintf(fp_out, " );\n");`
336			`fprintf(fp_out, " drive_we: process (rw)\n");`
337			`fprintf(fp_out, " begin\n");`
338			`fprintf(fp_out, " we <= not rw;\n");`
339			`fprintf(fp_out, " end process;\n");`
340			`fprintf(fp_out, "end architecture rtl;\n\n");`
341
342			`}`
343
344
345
346
347			`/*`
348			`* epedit main program`
349			`*/`
350			`int main(int argc, char* argv[])`
351			`{`
352			`int start_addr;`
353			`int end_addr;`
354			`int arglen;`
355			`char entity_name_buf[512];`
356			`char hdl_file_buf[1024];`
357			`char buf[1024];`
358			`char *curpos;`
359			`FILE *fp_out;`
360
361			`if (argc < 5) {`
362			`printf("Usage: s19tovhd <s19 file> <base vhd file> <vhdl base entity name> <addr> [<addr> ...]\n");`
363			`return(-1);`
364			`}`
365			`printf("Reading Motorola S19 from file '%s'\n", argv[1]);`
366			`printf("VHDL file name '%s'\n", argv[2]);`
367			`printf("Base RAM/ROM entity name is '%s'\n", argv[3]);`
368			`load_mot( argv[1] );`
369			`if( (fp_out = fopen( argv[2], "w" )) == NULL ) {`
370			`printf( "\nCan't open '%s' for write ", argv[2] );`
371			`return(-1);`
372			`}`
373
374			`for (int cnt=4; cnt<argc; cnt++) {`
375			`if( (arglen = get_address( argv[cnt], &start_addr )) == 0 ) {`
376			`printf("Expected hex start address, got %s\n", argv[cnt]);`
377			`continue;`
378			`}`
379			`end_addr = start_addr + 2047;`
380			`sprintf(entity_name_buf, "%s_%4X", argv[3], start_addr);`
381
382			`printf("Entity '%s' (address range '0x%4X'-'0x%4X') written to file '%s'\n",`
383			`entity_name_buf, start_addr, end_addr, argv[2]);`
384			`save_vhdl_byte( fp_out, entity_name_buf, start_addr, end_addr );`
385			`}`
386			`if (fp_out) fclose(fp_out);`
387			`return(0);`
388			`}`
389

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