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alexbevi
GitHub Repository: alexbevi/BizHawk
 Path: blob/master/libsnes/lsnes_patches/0001-Don-t-use-time-in-emulating-chips.patch
2 views
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From 22205d4d339cfa11f6d53e644eae1c859a56d349 Mon Sep 17 00:00:00 2001

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From: Ilari Liusvaara <[email protected]>

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Date: Wed, 9 Nov 2011 00:37:44 +0200

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Subject: [PATCH 1/4] Don't use time() in emulating chips

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Instead of using time() in chip emulation, create new interface method

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currentTime(), defaulting to time(0). This way frontend can cleanly

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override the current time bsnes is using.

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---

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 snes/chip/bsx/satellaview/satellaview.cpp |    2 +-

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 snes/chip/spc7110/spc7110.cpp             |    2 +-

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 snes/chip/srtc/srtc.cpp                   |    2 +-

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 snes/interface/interface.cpp              |    5 +++++

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 snes/interface/interface.hpp              |    1 +

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 5 files changed, 9 insertions(+), 3 deletions(-)

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diff --git a/snes/chip/bsx/satellaview/satellaview.cpp b/snes/chip/bsx/satellaview/satellaview.cpp

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index 386fb62..3c98019 100755

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--- snes/chip/bsx/satellaview/satellaview.cpp

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+++ snes/chip/bsx/satellaview/satellaview.cpp

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@@ -38,7 +38,7 @@ uint8 BSXSatellaview::mmio_read(unsigned addr) {

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       if(counter == 0) {

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         time_t rawtime;

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-        time(&rawtime);

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+        rawtime = SNES::interface->currentTime();

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         tm *t = localtime(&rawtime);

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         regs.r2192_hour   = t->tm_hour;

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diff --git a/snes/chip/spc7110/spc7110.cpp b/snes/chip/spc7110/spc7110.cpp

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index 27b8b77..061aa5e 100755

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--- snes/chip/spc7110/spc7110.cpp

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+++ snes/chip/spc7110/spc7110.cpp

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@@ -101,7 +101,7 @@ void SPC7110::set_data_adjust(unsigned addr)  { r4814 = addr; r4815 = addr >> 8;

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 void SPC7110::update_time(int offset) {

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   time_t rtc_time = (rtc[16] << 0) | (rtc[17] << 8) | (rtc[18] << 16) | (rtc[19] << 24);

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-  time_t current_time = time(0) - offset;

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+  time_t current_time = SNES::interface->currentTime() - offset;

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   //sizeof(time_t) is platform-dependent; though rtc[] needs to be platform-agnostic.

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   //yet platforms with 32-bit signed time_t will overflow every ~68 years. handle this by

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diff --git a/snes/chip/srtc/srtc.cpp b/snes/chip/srtc/srtc.cpp

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index 0044113..725e891 100755

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--- snes/chip/srtc/srtc.cpp

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+++ snes/chip/srtc/srtc.cpp

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@@ -31,7 +31,7 @@ void SRTC::reset() {

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 void SRTC::update_time() {

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   time_t rtc_time = (rtc[16] << 0) | (rtc[17] << 8) | (rtc[18] << 16) | (rtc[19] << 24);

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-  time_t current_time = time(0);

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+  time_t current_time = SNES::interface->currentTime();

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   //sizeof(time_t) is platform-dependent; though rtc[] needs to be platform-agnostic.

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   //yet platforms with 32-bit signed time_t will overflow every ~68 years. handle this by

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diff --git a/snes/interface/interface.cpp b/snes/interface/interface.cpp

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index a0e3a81..b3017c9 100755

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--- snes/interface/interface.cpp

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+++ snes/interface/interface.cpp

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@@ -18,4 +18,9 @@ void Interface::message(const string &text) {

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   print(text, "\n");

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 }

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+time_t Interface::currentTime()

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+{

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+  return time(0);

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+}

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+

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 }

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diff --git a/snes/interface/interface.hpp b/snes/interface/interface.hpp

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index f1a48c0..df975e8 100755

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--- snes/interface/interface.hpp

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+++ snes/interface/interface.hpp

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@@ -5,6 +5,7 @@ struct Interface {

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   virtual string path(Cartridge::Slot slot, const string &hint) = 0;

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   virtual void message(const string &text);

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+  virtual time_t currentTime();

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 };

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 extern Interface *interface;

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-- 

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1.7.9.48.g85da4d

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