diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/library.js | 31 | ||||
| -rw-r--r-- | src/library_sdl.js | 7 |
2 files changed, 35 insertions, 3 deletions
diff --git a/src/library.js b/src/library.js index b9c13055..104b0dc4 100644 --- a/src/library.js +++ b/src/library.js @@ -4771,15 +4771,42 @@ LibraryManager.library = { // type_info for void*. _ZTIPv: [0], + llvm_uadd_with_overflow_i8: function(x, y) { + x = x & 0xff; + y = y & 0xff; + return { + f0: (x+y) & 0xff, + f1: x+y > 255 + }; + }, + + llvm_umul_with_overflow_i8: function(x, y) { + x = x & 0xff; + y = y & 0xff; + return { + f0: (x*y) & 0xff, + f1: x*y > 255 + }; + }, + llvm_uadd_with_overflow_i16: function(x, y) { - x = (x>>>0) & 0xffff; - y = (y>>>0) & 0xffff; + x = x & 0xffff; + y = y & 0xffff; return { f0: (x+y) & 0xffff, f1: x+y > 65535 }; }, + llvm_umul_with_overflow_i16: function(x, y) { + x = x & 0xffff; + y = y & 0xffff; + return { + f0: (x*y) & 0xffff, + f1: x*y > 65535 + }; + }, + llvm_uadd_with_overflow_i32: function(x, y) { x = x>>>0; y = y>>>0; diff --git a/src/library_sdl.js b/src/library_sdl.js index 88649c38..73848502 100644 --- a/src/library_sdl.js +++ b/src/library_sdl.js @@ -952,7 +952,12 @@ var LibrarySDL = { SDL_MapRGB: function(fmt, r, g, b) { // Canvas screens are always RGBA - return r + (g << 8) + (b << 16); + return 0xff+((b&0xff)<<8)+((g&0xff)<<16)+((r&0xff)<<24) + }, + + SDL_MapRGBA: function(fmt, r, g, b, a) { + // Canvas screens are always RGBA + return (a&0xff)+((b&0xff)<<8)+((g&0xff)<<16)+((r&0xff)<<24) }, SDL_WM_GrabInput: function() {}, |