QDSP6 (Qualcomm Hexxagon). Few questions / datasheet needed. - GSM-Forum

Decker82 · 05-29-2014, 20:17

Have some questions about QDSP6, if somebody have deal with it, can you explain the following things (or may be somebody have link to datasheet)?

1. What the difference between the following instructions:
a) memb (r17 + #0x13) = r12.new
b) memb (r17 + #0x13) = r12
What does this mean ".new"?

2. r1:0 = combine (r18, r20) means r1 = r18, r0 = r20? Or i'm wrong?

3. What the difference between memb and memub? What does it mean "u"? Unsigned?

4. immext instruction description?

Thx in advance.

Decker82 · 05-30-2014, 12:14

Found datasheet. Who needs - that's the link: Hexagon v5/V55 Programmer's Reference Manual.

qdbdavid · 11-23-2017, 13:40

Hi
I have sent you a message ,

05-29-2014, 20:17	#1 (permalink)
Decker82 Freak Poster Join Date: May 2013 Location: Russia Posts: 101 Member: 1940428 Status: Offline Sonork: 100.1647873 Thanks Meter: 35	QDSP6 (Qualcomm Hexxagon). Few questions / datasheet needed. Have some questions about QDSP6, if somebody have deal with it, can you explain the following things (or may be somebody have link to datasheet)? 1. What the difference between the following instructions: a) memb (r17 + #0x13) = r12.new b) memb (r17 + #0x13) = r12 What does this mean ".new"? 2. r1:0 = combine (r18, r20) means r1 = r18, r0 = r20? Or i'm wrong? 3. What the difference between memb and memub? What does it mean "u"? Unsigned? 4. immext instruction description? Thx in advance.

05-30-2014, 12:14	#2 (permalink)
Decker82 Freak Poster Join Date: May 2013 Location: Russia Posts: 101 Member: 1940428 Status: Offline Sonork: 100.1647873 Thanks Meter: 35	Found datasheet. Who needs - that's the link: Hexagon v5/V55 Programmer's Reference Manual.

11-23-2017, 13:40	#3 (permalink)
qdbdavid Freak Poster Join Date: Apr 2017 Location: china Posts: 100 Member: 2709982 Status: Offline Sonork: 100.1677638 Thanks Meter: 1	Hi I have sent you a message ,