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Merge pull request #9 from aap/lars/tmxr

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Update netmem for new protocol used by SIMH's TMXR.
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aap 2019-01-28 20:36:15 +01:00 committed by GitHub
commit ef0693e927
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1 changed files with 15 additions and 12 deletions
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27
emu/netmem.c
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@ -25,11 +25,12 @@ netmemcycle(void *dev)
if(!hasinput(nm->fd))
return;
if(readn(nm->fd, &len, 1)){
if(readn(nm->fd, buf, 2)){
fprintf(stderr, "netmem fd closed\n");
nm->fd = -1;
return;
}
len = buf[0]<<8 | buf[1];
if(len > 9){
fprintf(stderr, "netmem botch, closing\n");
close(nm->fd);
@ -50,23 +51,25 @@ netmemcycle(void *dev)
if(p == nil) goto err;
*p = d;
printf("write %06lo %012lo\n", a, d);
buf[0] = 1;
buf[1] = ACK;
writen(nm->fd, buf, buf[0]+1);
buf[0] = 0;
buf[1] = 1;
buf[2] = ACK;
writen(nm->fd, buf, buf[1]+2);
break;
case RDRQ:
p = getmemref(&nm->apr->membus, a, 0);
if(p == nil) goto err;
d = *p;
printf("read %06lo %012lo\n", a, d);
buf[0] = 6;
buf[1] = ACK;
buf[2] = d;
buf[3] = d>>8;
buf[4] = d>>16;
buf[5] = d>>24;
buf[6] = d>>32;
writen(nm->fd, buf, buf[0]+1);
buf[0] = 0;
buf[1] = 6;
buf[2] = ACK;
buf[3] = d;
buf[4] = d>>8;
buf[5] = d>>16;
buf[6] = d>>24;
buf[7] = d>>32;
writen(nm->fd, buf, buf[1]+2);
break;
default:
fprintf(stderr, "unknown netmem message %d\n", buf[0]);