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holly/core: use End of TSP interrupt

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Core bug #20 is real:

  The "End_Of_Video" interrupt is sometimes not output.

  Replace with "End_Of_TSP
This commit is contained in:
Zack Buhman 2023-12-17 22:06:17 +08:00
parent 59f8c1b3ff
commit aa805468d9
2 changed files with 9 additions and 14 deletions
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6
example/cube.cpp
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@ -174,23 +174,17 @@ void main()
while (1) {
ta_polygon_converter_init(opb_size.total() * tiles, ta_alloc);
auto parameter = ta_parameter_writer(ta_parameter_buf);
for (uint32_t i = 0; i < num_faces; i++) {
transform(parameter, cube_faces[i], 4);
}
parameter.append<global_end_of_list>() = global_end_of_list();
ta_polygon_converter_transfer(ta_parameter_buf, parameter.offset);
ta_wait_opaque_list();
core_start_render(frame_ix, num_frames);
v_sync_out();
v_sync_in();
core_wait_end_of_render_video(frame_ix, num_frames);
theta += half_degree;
frame_ix += 1;
}

17
holly/core.cpp
View File

@ -69,17 +69,18 @@ void core_start_render(uint32_t frame_ix, uint32_t num_frames)
holly.STARTRENDER = 1;
}
static bool flycast_is_dumb = 0;
static bool flycast_is_dumb = false;
#include "serial.hpp"
void core_wait_end_of_render_video(uint32_t frame_ix, uint32_t num_frames)
{
if (!flycast_is_dumb) {
flycast_is_dumb = true;
} else {
while ((system.ISTNRM & ISTNRM__END_OF_RENDER_TSP) == 0);
system.ISTNRM = ISTNRM__END_OF_RENDER_TSP;
}
uint32_t r_fb = ((frame_ix + 1) & num_frames) * 0x00096000;
holly.FB_R_SOF1 = (offsetof (struct texture_memory_alloc, framebuffer)) + r_fb;
if (!flycast_is_dumb) {
flycast_is_dumb = 1;
} else {
while ((system.ISTNRM & ISTNRM__END_OF_RENDER_VIDEO) == 0);
system.ISTNRM = ISTNRM__END_OF_RENDER_VIDEO;
}
}