folkert/simh-testsetgenerator
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

ISYS8010: Corrected errors in i8255.c

Browse source
This commit is contained in:
Bill Beech 2015-05-08 15:15:22 -07:00
parent d5e1a9c8f9
commit ba7937c0d0
1 changed files with 24 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

40
Intel-Systems/common/i8255.c
View file

@ -70,29 +70,29 @@
A read to the data ports gets the current port value, a write
to the data ports writes the character to the device.
*** Need to modify so that multiple devices can be registered and
used.
This program up to 4 i8255 devices. It handles 2 i8255 devices
on the iSBC 80/10 SBC. Other devices could be on other multibus
boards in the simulated system.
*/
#include "system_defs.h" /* system header in system dir */
#define i8255_DEV 4 /* number of devices */
#define i8255_DEV 4 /* number of devices */
/* function prototypes */
int32 i8255s0(int32 io, int32 data);
int32 i8255s0(int32 io, int32 data); /* i8255 0 */
int32 i8255a0(int32 io, int32 data);
int32 i8255b0(int32 io, int32 data);
int32 i8255c0(int32 io, int32 data);
int32 i8255s1(int32 io, int32 data);
int32 i8255s1(int32 io, int32 data); /* i8255 1 */
int32 i8255a1(int32 io, int32 data);
int32 i8255b1(int32 io, int32 data);
int32 i8255c1(int32 io, int32 data);
int32 i8255s2(int32 io, int32 data);
int32 i8255s2(int32 io, int32 data); /* i8255 2 */
int32 i8255a2(int32 io, int32 data);
int32 i8255b2(int32 io, int32 data);
int32 i8255c2(int32 io, int32 data);
int32 i8255s3(int32 io, int32 data);
int32 i8255s3(int32 io, int32 data); /* i8255 3 */
int32 i8255a3(int32 io, int32 data);
int32 i8255b3(int32 io, int32 data);
int32 i8255c3(int32 io, int32 data);
@ -110,10 +110,10 @@ uint8 i8255_base[i8255_DEV];
/* i8255 Standard I/O Data Structures */
UNIT i8255_unit[] = {
{ UDATA (0, 0, 0) },
{ UDATA (0, 0, 0) },
{ UDATA (0, 0, 0) },
{ UDATA (0, 0, 0) }
{ UDATA (0, 0, 0) }, /* i8255 0 */
{ UDATA (0, 0, 0) }, /* i8255 1 */
{ UDATA (0, 0, 0) }, /* i8255 2 */
{ UDATA (0, 0, 0) } /* i8255 3 */
};
DEBTAB i8255_debug[] = {
@ -128,19 +128,19 @@ DEBTAB i8255_debug[] = {
};
REG i8255_reg[] = {
{ HRDATA (CONTROL0, i8255_unit[0].u3, 8) },
{ HRDATA (CONTROL0, i8255_unit[0].u3, 8) }, /* i8255 0 */
{ HRDATA (PORTA0, i8255_unit[0].u4, 8) },
{ HRDATA (PORTB0, i8255_unit[0].u5, 8) },
{ HRDATA (PORTC0, i8255_unit[0].u6, 8) },
{ HRDATA (CONTROL1, i8255_unit[1].u3, 8) },
{ HRDATA (CONTROL1, i8255_unit[1].u3, 8) }, /* i8255 1 */
{ HRDATA (PORTA1, i8255_unit[1].u4, 8) },
{ HRDATA (PORTB1, i8255_unit[1].u5, 8) },
{ HRDATA (PORTC1, i8255_unit[1].u6, 8) },
{ HRDATA (CONTROL1, i8255_unit[2].u3, 8) },
{ HRDATA (CONTROL1, i8255_unit[2].u3, 8) }, /* i8255 2 */
{ HRDATA (PORTA1, i8255_unit[2].u4, 8) },
{ HRDATA (PORTB1, i8255_unit[2].u5, 8) },
{ HRDATA (PORTC1, i8255_unit[2].u6, 8) },
{ HRDATA (CONTROL1, i8255_unit[3].u3, 8) },
{ HRDATA (CONTROL1, i8255_unit[3].u3, 8) }, /* i8255 3 */
{ HRDATA (PORTA1, i8255_unit[3].u4, 8) },
{ HRDATA (PORTB1, i8255_unit[3].u5, 8) },
{ HRDATA (PORTC1, i8255_unit[3].u6, 8) },
@ -177,6 +177,8 @@ DEVICE i8255_dev = {
IN or OUT instruction is issued.
*/
/* i8255 0 functions */
int32 i8255s0(int32 io, int32 data)
{
int32 bit;
@ -234,6 +236,8 @@ int32 i8255c0(int32 io, int32 data)
return 0;
}
/* i8255 1 functions */
int32 i8255s1(int32 io, int32 data)
{
int32 bit;
@ -291,6 +295,8 @@ int32 i8255c1(int32 io, int32 data)
return 0;
}
/* i8255 2 functions */
int32 i8255s2(int32 io, int32 data)
{
int32 bit;
@ -348,6 +354,8 @@ int32 i8255c2(int32 io, int32 data)
return 0;
}
/* i8255 3 functions */
int32 i8255s3(int32 io, int32 data)
{
int32 bit;