diff options
Diffstat (limited to 'src/main.S')
| -rw-r--r-- | src/main.S | 46 |
1 files changed, 22 insertions, 24 deletions
@@ -1,4 +1,5 @@ -#include "SDL_interface.S" +#include "helpers/function.S" +#include "libs/sdl.S" #define SCREEN_WIDTH 800 #define SCREEN_HEIGHT 600 @@ -14,13 +15,9 @@ window_title: .string "snake.s" .section .text - .global main - // void _print_sdl_error(char const * format) - .type _print_sdl_error, @function - _print_sdl_error: - push %rbp - mov %rsp, %rbp + //! @function _print_sdl_error(char const * format) + function_begin _print_sdl_error push %rdi sub $8, %rsp @@ -32,27 +29,25 @@ pop %rdi call printf@PLT - jmp .Lexit - leave - ret + function_end - .type main, @function - main: - push %rbp - mov %rsp, %rbp + function_begin main + + define_local window_handle, 8 + allocate_locals // initialize SDL mov $SDL_INIT_VIDEO, %rdi call SDL_Init@PLT // check if initialization was successful - cmp $0, %rax + test %rax, %rax jae 1f lea failed_to_initialize_sdl(%rip), %rdi call _print_sdl_error@PLT mov $1, %rax - jmp .Lexit + function_exit 1: // create a window @@ -64,17 +59,21 @@ mov $SDL_WINDOW_SHOWN, %r9 call SDL_CreateWindow@PLT - cmp $0, %rax + store_local %rax, window_handle + + // check if window creation was successful + test %rax, %rax jne 1f lea failed_to_create_window(%rip), %rdi call _print_sdl_error@PLT mov $1, %rax - jmp .Lexit + function_exit 1: - mov %rax, %rdi - call SDL_DestroyWindow@PLT - call SDL_Quit@PLT + load_local window_handle, %rdi + call SDL_DestroyWindow@PLT + + call SDL_Quit@PLT .Lsuccess: lea greeting(%rip), %rdi @@ -83,6 +82,5 @@ xor %rax, %rax - .Lexit: - leave - ret + function_end + |