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asix-sigma: Fixed RLE decoder 

When "tsdiff < EVENTS_PER_CLUSTER" we don't want "tsdiff - EVENTS_PER_CLUSTER"
(a negative number) to be treated as (int).

Submitted-By: jry <jrysig@gmail.com>
[ gsi: massaged for mainline submission ]
This commit is contained in:
Gerhard Sittig 2017-04-23 13:29:51 +02:00 committed by Uwe Hermann
parent 42be2adb5a
commit a44b3b3f16
1 changed files with 3 additions and 3 deletions
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6
src/hardware/asix-sigma/protocol.c
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@ -723,7 +723,7 @@ static void sigma_decode_dram_cluster(struct sigma_dram_cluster *dram_cluster,
ts = sigma_dram_cluster_ts(dram_cluster);
tsdiff = ts - ss->lastts;
ss->lastts = ts;
ss->lastts = ts + EVENTS_PER_CLUSTER;
packet.type = SR_DF_LOGIC;
packet.payload = &logic;
@ -741,7 +741,7 @@ static void sigma_decode_dram_cluster(struct sigma_dram_cluster *dram_cluster,
* sample in the cluster happens at the time of the timestamp
* and the remaining samples happen at timestamp +1...+6 .
*/
for (ts = 0; ts < tsdiff - (EVENTS_PER_CLUSTER - 1); ts++) {
for (ts = 0; ts < tsdiff; ts++) {
i = ts % 1024;
samples[2 * i + 0] = ss->lastsample & 0xff;
samples[2 * i + 1] = ss->lastsample >> 8;
@ -751,7 +751,7 @@ static void sigma_decode_dram_cluster(struct sigma_dram_cluster *dram_cluster,
* end of submitting the padding samples, submit
* the packet to Sigrok.
*/
if ((i == 1023) || (ts == (tsdiff - EVENTS_PER_CLUSTER))) {
if ((i == 1023) || (ts == tsdiff - 1)) {
logic.length = (i + 1) * logic.unitsize;
sr_session_send(sdi, &packet);
}