runner_dreamcast: render in v_blank_in_interrupt
This allows solutions to use printf without returning.
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acff0d9dd3
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@ -16,6 +16,12 @@
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#include "sh7091/store_queue.hpp"
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#include "sh7091/serial.hpp"
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#include "sh7091/vbr.hpp"
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#include "sh7091/sh7091.hpp"
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#include "sh7091/sh7091_bits.hpp"
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#include "systembus.hpp"
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#include "systembus_bits.hpp"
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#include "font/font.hpp"
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#include "font/dejavusansmono/dejavusansmono.data.h"
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@ -161,20 +167,14 @@ void copy_font(const uint8_t * src,
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}
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}
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int main()
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{
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serial::init(0);
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serial::string("framebuffer: ");
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serial::integer<uint32_t>((uint32_t)&texture_memory32[texture_memory_alloc::framebuffer[0].start / 4]);
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constexpr uint32_t ta_alloc = ta_alloc_ctrl::pt_opb::no_list
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constexpr uint32_t ta_alloc = ta_alloc_ctrl::pt_opb::no_list
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| ta_alloc_ctrl::tm_opb::no_list
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| ta_alloc_ctrl::t_opb::_32x4byte
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| ta_alloc_ctrl::om_opb::no_list
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| ta_alloc_ctrl::o_opb::no_list;
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constexpr int render_passes = 1;
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constexpr struct opb_size opb_size[render_passes] = {
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constexpr int render_passes = 1;
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constexpr struct opb_size opb_size[render_passes] = {
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{
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.opaque = 0,
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.opaque_modifier = 0,
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@ -182,67 +182,29 @@ int main()
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.translucent_modifier = 0,
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.punch_through = 0
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}
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};
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};
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holly.SOFTRESET = softreset::pipeline_soft_reset
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| softreset::ta_soft_reset;
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holly.SOFTRESET = 0;
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static int ta;
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static int core;
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core_init();
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const struct font * font;
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const struct glyph * glyphs;
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constexpr int framebuffer_width = 640;
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constexpr int framebuffer_height = 480;
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constexpr int tile_width = framebuffer_width / 32;
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constexpr int tile_height = framebuffer_height / 32;
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constexpr int framebuffer_width = 640;
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constexpr int framebuffer_height = 480;
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constexpr int tile_width = framebuffer_width / 32;
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constexpr int tile_height = framebuffer_height / 32;
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region_array_multipass(tile_width,
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tile_height,
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opb_size,
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render_passes,
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texture_memory_alloc::region_array[0].start,
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texture_memory_alloc::object_list[0].start);
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region_array_multipass(tile_width,
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tile_height,
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opb_size,
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render_passes,
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texture_memory_alloc::region_array[1].start,
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texture_memory_alloc::object_list[1].start);
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static uint32_t frame = 0;
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background_parameter2(texture_memory_alloc::background[0].start,
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0xff220033);
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background_parameter2(texture_memory_alloc::background[1].start,
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0xff220033);
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auto font = reinterpret_cast<const struct font *>(&_binary_font_dejavusansmono_dejavusansmono_data_start);
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auto glyphs = reinterpret_cast<const struct glyph *>(&font[1]);
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auto texture = reinterpret_cast<const uint8_t *>(&glyphs[font->glyph_count]);
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copy_font(texture, font->max_z_curve_ix);
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palette_data<256>();
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int ta = -1;
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int core = -2;
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struct runner_state runner_state = {0};
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video_output::set_mode_vga();
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bool done = false;
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while (true) {
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void render()
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{
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if (core >= 0) {
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// core = 0 ; core = 1
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// ta = 1 ; ta = 0
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core_wait_end_of_render_video();
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while (!spg_status::vsync(holly.SPG_STATUS));
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frame += 1;
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holly.FB_R_SOF1 = texture_memory_alloc::framebuffer[core].start;
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while (spg_status::vsync(holly.SPG_STATUS));
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}
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if (core == 0) {
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if (done == true)
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break;
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done = runner_tick(&runner_state);
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}
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// core = -2 ; core = 1 ; core = 0
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@ -264,7 +226,6 @@ int main()
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framebuffer_width);
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}
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// core = -1 ; core = 1 ; core = 0
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// ta = 0 ; ta = 0 ; ta = 1
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ta_polygon_converter_init2(texture_memory_alloc::isp_tsp_parameters[ta].start,
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@ -276,8 +237,142 @@ int main()
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tile_width,
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tile_height);
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transfer_scene(font, glyphs);
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}
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void vbr600()
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{
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/*
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serial::string("vbr600\n");
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serial::string("expevt ");
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serial::integer<uint16_t>(sh7091.CCN.EXPEVT);
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serial::string("intevt ");
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serial::integer<uint16_t>(sh7091.CCN.INTEVT);
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serial::string("tra ");
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serial::integer<uint16_t>(sh7091.CCN.TRA);
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serial::string("istnrm ");
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serial::integer<uint32_t>(system.ISTNRM & system.IML6NRM);
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*/
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render();
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// reset v_blank_in interrupt
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system.ISTNRM = istnrm::v_blank_in_interrupt;
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return;
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}
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void vbr400()
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{
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serial::string("vbr400\n");
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while (1);
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}
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void vbr100()
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{
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serial::string("vbr100\n");
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while (1);
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}
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void interrupt_init()
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{
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sh7091.CCN.INTEVT = 0;
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sh7091.CCN.EXPEVT = 0;
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system.IML2NRM = 0;
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system.IML2ERR = 0;
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system.IML2EXT = 0;
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system.IML4NRM = 0;
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system.IML4ERR = 0;
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system.IML4EXT = 0;
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system.IML6NRM = 0;
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system.IML6ERR = 0;
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system.IML6EXT = 0;
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// enable v-blank-in interrupt at IRL level 6
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system.IML6NRM = istnrm::v_blank_in_interrupt;
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const uint32_t vbr = reinterpret_cast<uint32_t>(&__vbr_link_start) - 0x100;
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// set VBR
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asm volatile ("ldc %0,vbr"
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:
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: "r" (vbr));
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uint32_t sr;
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// read current SR
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asm volatile ("stc sr,%0"
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: "=r" (sr));
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// unset interrupt block bit
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sr &= ~sh::sr::bl;
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// enable interrupt level 6
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sr &= ~sh::sr::imask(15);
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sr |= sh::sr::imask(0b0100);
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// set new SR
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asm volatile ("ldc %0,sr"
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:
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: "r" (sr));
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}
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int main()
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{
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serial::init(0);
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serial::string("framebuffer: ");
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serial::integer<uint32_t>((uint32_t)&texture_memory32[texture_memory_alloc::framebuffer[0].start / 4]);
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holly.SOFTRESET = softreset::pipeline_soft_reset
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| softreset::ta_soft_reset;
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holly.SOFTRESET = 0;
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core_init();
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region_array_multipass(tile_width,
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tile_height,
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opb_size,
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render_passes,
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texture_memory_alloc::region_array[0].start,
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texture_memory_alloc::object_list[0].start);
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region_array_multipass(tile_width,
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tile_height,
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opb_size,
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render_passes,
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texture_memory_alloc::region_array[1].start,
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texture_memory_alloc::object_list[1].start);
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background_parameter2(texture_memory_alloc::background[0].start,
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0xff220033);
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background_parameter2(texture_memory_alloc::background[1].start,
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0xff220033);
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font = reinterpret_cast<const struct font *>(&_binary_font_dejavusansmono_dejavusansmono_data_start);
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glyphs = reinterpret_cast<const struct glyph *>(&font[1]);
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auto texture = reinterpret_cast<const uint8_t *>(&glyphs[font->glyph_count]);
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copy_font(texture, font->max_z_curve_ix);
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palette_data<256>();
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struct runner_state runner_state = {0};
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video_output::set_mode_vga();
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ta = -1;
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core = -2;
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interrupt_init();
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uint32_t done_frame = 0;
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bool done = false;
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while (true) {
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if (!done && runner_tick(&runner_state)) {
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done = true;
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done_frame = frame;
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}
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if (done && (frame == done_frame + 2))
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break;
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}
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//while (1);
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serial::string("return\n");
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}
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