diff options
| author |  Tony Wasserka <NeoBrainX@gmail.com> | 2014-08-23 14:14:34 +0200 |
|---|---|---|
| committer | Tony Wasserka <NeoBrainX@gmail.com> | 2014-08-25 22:03:19 +0200 |
| commit | 697b50c3ff1b0d179c5862efa56cb19fa640824c (patch) | |
| tree | 5fc892f9e922daae01366120874bfb8faf754574 /src/video_core/vertex_shader.cpp | |
| parent | b5b3aeb57699e531bdc0b8be156aa6476ea4f15d (diff) | |
Pica/VertexShader: Fix a bug in the call stack handling.
Diffstat (limited to 'src/video_core/vertex_shader.cpp')
| -rw-r--r-- | src/video_core/vertex_shader.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/video_core/vertex_shader.cpp b/src/video_core/vertex_shader.cpp index cdecbff3..db824431 100644 --- a/src/video_core/vertex_shader.cpp +++ b/src/video_core/vertex_shader.cpp @@ -191,8 +191,9 @@ static void ProcessShaderCode(VertexShaderState& state) { if (*state.call_stack_pointer == VertexShaderState::INVALID_ADDRESS) { exit_loop = true; } else { - state.program_counter = &shader_memory[*state.call_stack_pointer--]; - *state.call_stack_pointer = VertexShaderState::INVALID_ADDRESS; + // Jump back to call stack position, invalidate call stack entry, move up call stack pointer + state.program_counter = &shader_memory[*state.call_stack_pointer]; + *state.call_stack_pointer-- = VertexShaderState::INVALID_ADDRESS; } break; |