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Add cassette emulation to IBM PCjr.

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This commit is contained in:
SarahW 2019-04-17 20:37:48 +01:00
commit 4b7328f06e
2 changed files with 11 additions and 1 deletions
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11
src/keyboard_pcjr.c
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@ -1,5 +1,7 @@
#include "ibm.h"
#include "device.h"
#include "cassette.h"
#include "fdd.h"
#include "io.h"
#include "mem.h"
#include "nmi.h"
@ -129,6 +131,8 @@ void keyboard_pcjr_write(uint16_t port, uint8_t val, void *priv)
timer_process();
timer_update_outstanding();
cassette_set_motor((val & 8) ? 0 : 1);
speaker_update();
speaker_gated = val & 1;
speaker_enable = val & 2;
@ -171,7 +175,12 @@ uint8_t keyboard_pcjr_read(uint16_t port, void *priv)
case 0x62:
temp = (keyboard_pcjr.latched ? 1 : 0);
temp |= 0x02; /*Modem card not installed*/
temp |= (ppispeakon ? 0x10 : 0);
if (fdd_get_type(0) == 0)
temp |= 0x04; /*Disc card not installed*/
if (!(keyboard_pcjr.pb & 8))
temp |= (cassette_input()) ? 0x10 : 0;
else
temp |= (ppispeakon ? 0x10 : 0);
temp |= (ppispeakon ? 0x20 : 0);
temp |= (keyboard_pcjr.data ? 0x40: 0);
// temp |= 0x04;

1
src/model.c
View file

@ -325,6 +325,7 @@ void pcjr_init()
keyboard_pcjr_init();
device_add(&sn76489_device);
nmi_mask = 0x80;
device_add(&cassette_device);
}
void tandy1k_init()