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New diodemo version by Oliver; update of the README file

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git-svn-id: svn://svn.cc65.org/cc65/trunk@3619 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz
2005-09-02 19:47:46 +00:00
parent 0930ab22da
commit aa577a7a1d
2 changed files with 42 additions and 13 deletions
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45
samples/diodemo.c
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@@ -66,7 +66,7 @@ static driveid_t AskForDrive (const char* Name)
Char = cgetc ();
if (isdigit (Char)) {
cputc (Char);
Drive = (driveid_t) (Drive * 10 + Char - '0');
Drive = Drive * 10 + Char - '0';
}
} while (Char != CH_ENTER);
@@ -87,7 +87,7 @@ static void AskForDisk (const char* Name, driveid_t Drive)
static char* AllocBuffer (sectsize_t SectSize, sectnum_t SectCount, sectnum_t* ChunkCount)
/* Allocate a copy buffer on the heap and return a pointer to it */
{
void* Buffer = NULL;
char* Buffer = NULL;
unsigned long BufferSize;
unsigned int Chunks = 1;
@@ -101,11 +101,11 @@ static char* AllocBuffer (sectsize_t SectSize, sectnum_t SectCount, sectnum_t* C
}
} while (Buffer == NULL && ++Chunks <= MAX_CHUNKS);
return (char*) Buffer;
return Buffer;
}
int main (void)
int main (int argc, const char* argv[])
{
driveid_t SourceId;
driveid_t TargetId;
@@ -126,9 +126,28 @@ int main (void)
cputs ("\r\n");
/* Get source and target drive id (which may very well be identical) */
SourceId = AskForDrive ("Source");
TargetId = AskForDrive ("Target");
cputs ("\r\n\n");
switch (argc) {
case 1:
SourceId = AskForDrive ("Source");
TargetId = AskForDrive ("Target");
cputs ("\r\n");
break;
case 2:
SourceId = TargetId = atoi (argv[1]);
break;
case 3:
SourceId = atoi (argv[1]);
TargetId = atoi (argv[2]);
break;
default:
cprintf ("\r\nToo many arguments\r\n");
return EXIT_FAILURE;
}
cputs ("\r\n");
do {
/* Check for single drive copy or inital iteration */
@@ -136,8 +155,10 @@ int main (void)
AskForDisk ("Source", SourceId);
}
/* Open drive on initial iteration */
/* Check for initial iteration */
if (Source == NULL) {
/* Open source drive */
Source = dio_open (SourceId);
if (Source == NULL) {
cprintf ("\r\n\nError %d on opening Drive %d\r\n", (int) _oserror, SourceId);
@@ -147,7 +168,7 @@ int main (void)
SectSize = dio_query_sectsize (Source);
SectCount = dio_query_sectcount (Source);
/* */
/* Allocate buffer */
Buffer = AllocBuffer (SectSize, SectCount, &ChunkCount);
if (Buffer == NULL) {
cputs ("\r\n\nError on allocating Buffer\r\n");
@@ -163,7 +184,7 @@ int main (void)
/* Read one sector */
if (dio_read (Source, Sector, Buffer + (Sector - ChunkOffset) * SectSize) != 0) {
cprintf ("\r\n\nError %d on reading Drive %d\r\n", (int) _oserror, SourceId);
cprintf ("\r\n\nError %d on reading from Drive %d\r\n", (int) _oserror, SourceId);
return EXIT_FAILURE;
}
}
@@ -173,7 +194,7 @@ int main (void)
AskForDisk ("Target", TargetId);
}
/* Open drive on initial iteration */
/* Open target drive on initial iteration */
if (Target == NULL) {
Target = dio_open (TargetId);
if (Target == NULL) {
@@ -197,7 +218,7 @@ int main (void)
/* Write one sector */
if (dio_write (Target, Sector, Buffer + (Sector - ChunkOffset) * SectSize) != 0) {
cprintf ("\r\n\nError %d on opening Drive %d\r\n", (int) _oserror, TargetId);
cprintf ("\r\n\nError %d on writing to Drive %d\r\n", (int) _oserror, TargetId);
return EXIT_FAILURE;
}
}