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cc65/targettest/sym1/symIO.c
2021-06-15 16:39:28 -05:00

169 lines
5.1 KiB
C

// --------------------------------------------------------------------------
// Sym-1 digital I/O interface example
//
// Wayne Parham
//
// wayne@parhamdata.com
// --------------------------------------------------------------------------
#include <sym1.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void main(void) {
unsigned char ddr1a = 0x00;
unsigned char ior1a = 0x00;
unsigned char ddr1b = 0x00;
unsigned char ior1b = 0x00;
unsigned char ddr2a = 0x00;
unsigned char ior2a = 0x00;
unsigned char ddr2b = 0x00;
unsigned char ior2b = 0x00;
unsigned char ddr3a = 0x00;
unsigned char ior3a = 0x00;
unsigned char ddr3b = 0x00;
unsigned char ior3b = 0x00;
unsigned char val = 0x00;
int going = 0x01;
int instr = 0x01;
int l = 0x00;
char* vp = 0x00;
char cmd[20] = { 0x00 };
while( going ) {
putchar( '\r' );
for( l = 0; l < 25; l++ ) {
putchar( '\n' );
}
ddr1a = VIA1.ddra;
ior1a = VIA1.pra;
ddr1b = VIA1.ddrb;
ior1b = VIA1.prb;
ddr2a = VIA2.ddra;
ior2a = VIA2.pra;
ddr2b = VIA2.ddrb;
ior2b = VIA2.prb;
ddr3a = VIA3.ddra;
ior3a = VIA3.pra;
ddr3b = VIA3.ddrb;
ior3b = VIA3.prb;
puts( "================== Digital I/O Status ==================" );
puts( " Port1A Port1B Port2A Port2B Port3A Port3B" );
printf( "DDR %02X %02X %02X %02X %02X %02X\n\r",ddr1a,ddr1b,ddr2a,ddr2b,ddr3a,ddr3b );
printf( "IOR %02X %02X %02X %02X %02X %02X\n\r",ior1a,ior1b,ior2a,ior2b,ior3a,ior3b );
puts( "========================================================\n" );
if( instr ) {
puts( "You can set any register by typing 'register value' so" );
puts( "as an example, to set register IOR2A with the top five" );
puts( "bits off and the bottom three on, type 'IOR2A 07'." );
puts( "Press ENTER without any command to see register values" );
puts( "without changing any of them. Type 'help' to see these" );
puts( "instructions again and type 'quit' to end the program.\n");
puts( "Available registers: DDR1A, IOR1A, DDR1B, IOR1B, DDR2A" );
puts( "IOR2A, DDR2B, IOR2B, DDR3A, IOR3A, DDR3B and IOR3B." );
instr = 0;
}
printf( "\n Command: " );
fgets(cmd, sizeof(cmd)-1, stdin);
cmd[strlen(cmd)-1] = '\0';
if( strncasecmp(cmd, "quit", 4) == 0) {
going = 0;
}
else if( strncasecmp(cmd, "help", 4) == 0) {
instr = 1;
}
else if( strncasecmp(cmd, "ddr1a", 5) == 0) {
vp = strchr(cmd, ' ');
if( vp ) {
val = (unsigned char) strtol( vp, NULL, 0 );
VIA1.ddra = val;
}
}
else if( strncasecmp(cmd, "ior1a", 5) == 0) {
vp = strchr(cmd, ' ');
if( vp ) {
val = (unsigned char) strtol( vp, NULL, 0 );
VIA1.pra = val;
}
}
else if( strncasecmp(cmd, "ddr1b", 5) == 0) {
vp = strchr(cmd, ' ');
if( vp ) {
val = (unsigned char) strtol( vp, NULL, 0 );
VIA1.ddrb = val;
}
}
else if( strncasecmp(cmd, "ior1b", 5) == 0) {
vp = strchr(cmd, ' ');
if( vp ) {
val = (unsigned char) strtol( vp, NULL, 0 );
VIA1.prb = val;
}
}
else if( strncasecmp(cmd, "ddr2a", 5) == 0) {
vp = strchr(cmd, ' ');
if( vp ) {
val = (unsigned char) strtol( vp, NULL, 0 );
VIA2.ddra = val;
}
}
else if( strncasecmp(cmd, "ior2a", 5) == 0) {
vp = strchr(cmd, ' ');
if( vp ) {
val = (unsigned char) strtol( vp, NULL, 0 );
VIA2.pra = val;
}
}
else if( strncasecmp(cmd, "ddr2b", 5) == 0) {
vp = strchr(cmd, ' ');
if( vp ) {
val = (unsigned char) strtol( vp, NULL, 0 );
VIA2.ddrb = val;
}
}
else if( strncasecmp(cmd, "ior2b", 5) == 0) {
vp = strchr(cmd, ' ');
if( vp ) {
val = (unsigned char) strtol( vp, NULL, 0 );
VIA2.prb = val;
}
}
else if( strncasecmp(cmd, "ddr3a", 5) == 0) {
vp = strchr(cmd, ' ');
if( vp ) {
val = (unsigned char) strtol( vp, NULL, 0 );
VIA3.ddra = val;
}
}
else if( strncasecmp(cmd, "ior3a", 5) == 0) {
vp = strchr(cmd, ' ');
if( vp ) {
val = (unsigned char) strtol( vp, NULL, 0 );
VIA3.pra = val;
}
}
else if( strncasecmp(cmd, "ddr3b", 5) == 0) {
vp = strchr(cmd, ' ');
if( vp ) {
val = (unsigned char) strtol( vp, NULL, 0 );
VIA3.ddrb = val;
}
}
else if( strncasecmp(cmd, "ior3b", 5) == 0) {
vp = strchr(cmd, ' ');
if( vp ) {
val = (unsigned char) strtol( vp, NULL, 0 );
VIA3.prb = val;
}
}
}
}