Alcaro
/ gist:3c1231d88f43f07ba8e5
Last active
August 29, 2015 14:08
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| --- a/libretro-v2.h | |
| +++ b/libretro-v2.h | |
| @@ -1890,18 +1890,32 @@ void retro_reset(struct retro_core_data *core_handle); | |
| */ | |
| void retro_run(struct retro_core_data *core_handle); | |
| +enum retro_serialize_type { | |
| + RETRO_SERIALIZE_TYPE_SRAM = 0, /* This refers to save data. */ | |
| + RETRO_SERIALIZE_TYPE_SAVESTATE, /* This refers to all internal core state. */ | |
| + |
Alcaro
/ aM9WwHp0x6M_https_-_www.youtube.com_watchv=aM9WwHp0x6M_gl=US_hl=en_has_verified=1_bpctr=9999999999.dump
Created
April 12, 2015 16:41
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| <!DOCTYPE html><html lang="en" data-cast-api-enabled="true"><head><script>var ytcsi = {gt: function(n) {n = (n || '') + 'data_';return ytcsi[n] || (ytcsi[n] = {tick: {},span: {},info: {}});},tick: function(l, t, n) {ytcsi.gt(n).tick[l] = t || +new Date();},span: function(l, s, e, n) {ytcsi.gt(n).span[l] = (e ? e : +new Date()) - ytcsi.gt(n).tick[s];},setSpan: function(l, s, n) {ytcsi.gt(n).span[l] = s;},info: function(k, v, n) {ytcsi.gt(n).info[k] = v;},setStart: function(s, t, n) {ytcsi.info('yt_sts', s, n);ytcsi.tick('_start', t, n);}};(function(w, d) {ytcsi.perf = w.performance || w.mozPerformance ||w.msPerformance || w.webkitPerformance;ytcsi.setStart('dhs', ytcsi.perf ? ytcsi.perf.timing.responseStart : null);var isPrerender = (d.visibilityState || d.webkitVisibilityState) == 'prerender';var vName = d.webkitVisibilityState ? 'webkitvisibilitychange' : 'visibilitychange';if (isPrerender) {ytcsi.info('prerender', 1);var startTick = function() {ytcsi.setStart('dhs');d.removeEventListener(vName, startTick);} |
Alcaro
/ gist:d90daf1008e1e1c76a800f8116ff7c8a
Created
August 12, 2016 17:05
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| assume DRAM is constant endian | |
| u8[] DRAM = {1,2,3,4} | |
| big endian | |
| pix = *(int32_t *)(DRAM + addr); - pix = 1234 | |
| argb[1 ^ BYTE_ADDR_XOR] = (unsigned char)(pix >> 24); - argb[1] = 1 | |
| argb[2 ^ BYTE_ADDR_XOR] = (unsigned char)(pix >> 16); - argb[2] = 2 | |
| argb[3 ^ BYTE_ADDR_XOR] = (unsigned char)(pix >> 8); - argb[3] = 3 | |
| argb[0 ^ BYTE_ADDR_XOR] = (unsigned char)(pix >> 0); - argb[0] = 4, argb[]={4,1,2,3} | |
| scanline[i] = *(int32_t *)(argb); - scanline = 4123 |
Alcaro
/ gist:b0d40686a3db50572e6d2f1f50285e76
Created
August 12, 2016 17:38
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| Byte shenanigans, little endian | |
| uint32_t p(uint32_t pix) { uint8_t argb[4]; argb[3-1]=pix>>24; argb[3-2]=pix>>16; argb[3-3]=pix>>8; argb[3-0]=pix>>0; return *(uint32_t*)argb; } | |
| _Z1pj: # edi=1234 | |
| mov eax, edi # edi=1234 eax=1234 | |
| mov edx, edi # edi=1234 eax=1234 edx=1234 | |
| shr eax, 24 # edi=1234 eax=0001 edx=1234 | |
| shr edx, 16 # edi=1234 eax=0001 edx=0012 | |
| sal eax, 16 # edi=1234 eax=0100 edx=0012 | |
| mov ah, dl # edi=1234 eax=0120 edx=0012 | |
| mov edx, edi # edi=1234 eax=0120 edx=1234 |
Alcaro
/ gist:362082e3e8b3edb42a43c8d4c7aa2a3d
Created
August 26, 2016 12:46
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| Compiled with https://gcc.godbolt.org/ ARM gcc 4.8.2, flags -Os | |
| void g(volatile int* p, volatile int* q) | |
| { | |
| *p=0; | |
| *q=0; | |
| } | |
| void h(int* p, int* q) | |
| { | |
| *p=0; |
Alcaro
/ gist:4b3c7c12420f9697a926e5a3f0259419
Created
August 26, 2016 12:47
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| Compiled with https://gcc.godbolt.org/ ARM gcc 4.8.2, flags -Os | |
| void q(int* a, volatile int* b) | |
| { | |
| *a=0; | |
| *b=1; | |
| *a=2; | |
| *b=3; | |
| *a=4; | |
| } |
Alcaro
/ gist:fc93052744d4cf740d64006c61dcf898
Created
August 26, 2016 12:48
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| Compiled with https://gcc.godbolt.org/ x86-64 gcc 4.8.2, flags -Os | |
| void q(volatile __int128 * a) | |
| { | |
| *a=0; | |
| } | |
| q(__int128 volatile*): | |
| mov QWORD PTR [rdi], 0 | |
| mov QWORD PTR [rdi+8], 0 |
Alcaro
/ gist:ee2ea273ceba9d9db1cb442f69b336af
Created
August 26, 2016 12:49
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| Compiled with https://gcc.godbolt.org/ x86-64 gcc 4.8.2, flags -Os | |
| void q(int* a, volatile int* b) | |
| { | |
| *a=0; | |
| *b=1; | |
| *a=2; | |
| *b=3; | |
| *a=4; | |
| } |
Alcaro
/ gist:38143d7688c1f4bcc2a2d15e43764232
Created
August 26, 2016 13:09
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| Compiled with https://gcc.godbolt.org/ AVR gcc 4.5.3, flags -Os | |
| void g(volatile int* q) | |
| { | |
| *q=0; | |
| } | |
| void h(volatile long* q) | |
| { | |
| *q=0; | |
| } |
Alcaro
/ gist:3e1b206bc78d8ffa2b896a4c608db909
Created
January 20, 2017 21:01
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| loaded 391 bytes | |
| computing suffix array | |
| Direct sort of 194 b* suffixes | |
| direct sort initial 16 bit sort time: 21 ms | |
| direct sort time: 2 ms | |
| Program received signal SIGSEGV, Segmentation fault. | |
| 0x00000000004075bb in maniscalco::msufsort::second_stage_its_right_to_left_pass_single_threaded (this=0x7fffffffce10) at src/library/msufsort/msufsort.cpp:800 | |
| 800 auto precedingSymbol = precedingSuffix[0]; | |
| (gdb) bt full |
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