Fix SN76489 behavior and make the Tandy 1000 SX use the NCR sound chip instead (as some revisions of it shipped with that), fixes #4700.

2024-08-08 18:56:05 +02:00
parent 479ab87f17
commit b172df6498
3 changed files with 50 additions and 25 deletions
--- a/src/include/86box/snd_sn76489.h
+++ b/src/include/86box/snd_sn76489.h
@@ -20,6 +20,9 @@ typedef struct sn76489_t {
    int      freqhi[4];
    int      vol[4];
    uint32_t shift;
+    uint32_t white_noise_tap_1;
+    uint32_t white_noise_tap_2;
+    uint32_t feedback_mask;
    uint8_t  noise;
    int      lasttone;
    uint8_t  firstdat;