ssvb

-----------------------------------------------------------------------

    49f0:	e3a00001 	mov	r0, #1
    49f4:	e5cb0028 	strb	r0, [fp, #40]	; 0x28

-----------------------------------------------------------------------

    4e5c:	e3a00801 	mov	r0, #65536	; 0x10000
    4e60:	e58d0000 	str	r0, [sp]
    [...]

ssvb

From 44eac78981c07cf2f73a338d3e34eed685f6309d Mon Sep 17 00:00:00 2001
From: Siarhei Siamashka <[email protected]>
Date: Mon, 25 Jul 2016 17:42:19 +0300
Subject: [PATCH] OpenRISC support for GCC 5.3.0

This is the difference between dfad8a2635433704c74c70db28c3559867c2e362
from https://github.com/openrisc/or1k-gcc.git and vanilla GCC 5.3.0
---
 ChangeLog.or1k                                     |    8 +
 config/picflag.m4                                  |    3 +

ssvb

From aaa3428877546e7dff686e4e526f886becc59323 Mon Sep 17 00:00:00 2001
From: Siarhei Siamashka <[email protected]>
Date: Mon, 25 Jul 2016 19:43:58 +0300
Subject: [PATCH] musl nothreshold malloc

---
 src/malloc/malloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/malloc/malloc.c b/src/malloc/malloc.c

ssvb

$ diff --unified=20 u-boot.orig-v2016.09-rc1.disasm u-boot.revert-1a83fb4.disasm 
--- u-boot.orig-v2016.09-rc1.disasm	2016-07-29 17:28:31.000000000 +0300
+++ u-boot.revert-1a83fb4.disasm	2016-07-29 17:28:41.000000000 +0300
@@ -1,22 +1,22 @@
 
-u-boot.orig:     file format elf64-littleaarch64
+u-boot:     file format elf64-littleaarch64
 
 
 Disassembly of section .text:

ssvb

root@android:/ # busybox free                                                  
             total         used         free       shared      buffers
Mem:        362016       280000        82016            0         4656
-/+ buffers:             275344        86672
Swap:            0            0            0

ssvb

Allwinner H64, TOC0 style boot, FEL button pressed

01400000: 00010003
01400004: 00020003
01400008: 00030003
0140000c: 00040003
01400010: 00110003
01400014: 00120003
01400018: 00130003
0140001c: 00140003

ssvb

$ cat test.c 
typedef short JCOEF;
typedef unsigned char JSAMPLE;
typedef unsigned int JDIMENSION;
typedef JCOEF *JCOEFPTR;        /* useful in a couple of places */

#define GETJSAMPLE(value)  ((int)(value))
#define CENTERJSAMPLE   128
#define FAST_FLOAT float

ssvb

Testing libjpeg-turbo master 70327296e21343ed991a291601f9621edeb37003 on a softfloat little endian MIPS74K hardware:

<< MIPSELo32 >> OpenWrt ~ # cd libjpeg-turbo/
<< MIPSELo32 >> OpenWrt ~/libjpeg-turbo # mkdir build
<< MIPSELo32 >> OpenWrt ~/libjpeg-turbo # cd build/
<< MIPSELo32 >> OpenWrt ~/libjpeg-turbo/build # cmake ..
-- The C compiler identification is GNU 7.2.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info

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<< MIPSELo32 >> OpenWrt ~/libjpeg-turbo/build # JSIMD_FORCENONE=1 ./tjbench-static test-image.ppm 95

>>>>>  BGR (Top-down) <--> JPEG GRAY Q95  <<<<<

Image size: 2592 x 1944
Compress      --> Frame rate:         0.448023 fps
                  Output image size:  1225591 bytes
                  Compression ratio:  12.334085:1
                  Throughput:         2.257520 Megapixels/sec
                  Output bit stream:  4.392744 Megabits/sec

ssvb

Little endian MIPS74K @480MHz without FPU, GCC 7.2.0

Without DSP r2:

# JSIMD_FORCENONE=1 ./tjbench-static test-image.ppm 75 -fastdct

Using fastest DCT/IDCT algorithm

>>>>>  BGR (Top-down) <--> JPEG GRAY Q75  <<<<<