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nbg0_aseprite_rustboro: add more modes

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This commit is contained in:
Zack Buhman 2026-01-06 11:44:39 -06:00
parent dc7903d56b
commit 6b85fb8303
1 changed files with 61 additions and 16 deletions
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65
vdp2/nbg0_aseprite_rustboro.cpp
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@ -9,6 +9,8 @@
#include "aseprite/rustboro/pattern_name_table__layer_0.bin.h" #include "aseprite/rustboro/pattern_name_table__layer_0.bin.h"
#include "aseprite/rustboro/pattern_name_table__layer_1.bin.h" #include "aseprite/rustboro/pattern_name_table__layer_1.bin.h"
#define PNB_2WORD
void palette_data() void palette_data()
{ {
const uint16_t * buf = reinterpret_cast<uint16_t *>(&_binary_aseprite_rustboro_palette_bin_start); const uint16_t * buf = reinterpret_cast<uint16_t *>(&_binary_aseprite_rustboro_palette_bin_start);
@ -57,18 +59,32 @@ const buf_size_t pattern_name_tables[] = {
}, },
}; };
void pattern_name_table_data(const buf_size_t * buf_size, void pattern_name_table_data_2word(const buf_size_t * buf_size,
const uint32_t vram_offset, const uint32_t vram_offset,
const uint32_t character_offset) const uint32_t character_offset)
{ {
for (uint32_t i = 0; i < buf_size->size / 4; i++) { for (uint32_t i = 0; i < buf_size->size / 4; i++) {
uint32_t data = buf_size->buf[i]; uint32_t data = ((uint32_t *)buf_size->buf)[i];
uint32_t character_number = (data & 0x7fff) * 8 + character_offset; uint32_t character_number = (data & 0x7fff) + character_offset;
uint32_t flags = data & 0xf0000000; uint32_t flags = data & 0xf0000000;
vdp2.vram.u32[(vram_offset / 4) + i] = flags | character_number; vdp2.vram.u32[(vram_offset / 4) + i] = flags | character_number;
} }
} }
void pattern_name_table_data_1word(const buf_size_t * buf_size,
const uint32_t vram_offset,
const uint32_t character_offset)
{
for (uint32_t i = 0; i < buf_size->size / 2; i++) {
uint32_t data = ((uint16_t *)buf_size->buf)[i];
//uint32_t character_number = (data & 0x3ff) + (character_offset >> 2);
uint32_t character_number = (data & 0x3ff) + character_offset;
character_number = character_number & 0x3ff;
uint32_t flags = data & (0b11 << 10);
vdp2.vram.u16[(vram_offset / 2) + i] = flags | character_number;
}
}
void main() void main()
{ {
v_blank_in(); v_blank_in();
@ -107,10 +123,7 @@ void main()
2-word: value of bit 5-0 * 0x4000 2-word: value of bit 5-0 * 0x4000
*/ */
constexpr int plane_a = 0; constexpr int plane_a = 0;
constexpr int plane_a_offset = plane_a * 0x1000;
constexpr int plane_b = 4; constexpr int plane_b = 4;
constexpr int plane_b_offset = plane_b * 0x1000;
// Enable VRAM bank partitioning // Enable VRAM bank partitioning
vdp2.reg.RAMCTL = RAMCTL__VRAMD | RAMCTL__VRBMD; vdp2.reg.RAMCTL = RAMCTL__VRAMD | RAMCTL__VRBMD;
@ -119,11 +132,9 @@ void main()
vdp2.reg.MPABN0 = MPABN0__N0MPB(plane_a) | MPABN0__N0MPA(plane_a); // bits 5~0 vdp2.reg.MPABN0 = MPABN0__N0MPB(plane_a) | MPABN0__N0MPA(plane_a); // bits 5~0
vdp2.reg.MPCDN0 = MPCDN0__N0MPD(plane_a) | MPCDN0__N0MPC(plane_a); // bits 5~0 vdp2.reg.MPCDN0 = MPCDN0__N0MPD(plane_a) | MPCDN0__N0MPC(plane_a); // bits 5~0
vdp2.reg.PNCN0 = PNCN0__N0PNB__2WORD;
vdp2.reg.MPABN1 = MPABN1__N1MPB(plane_b) | MPABN1__N1MPA(plane_b); // bits 5~0 vdp2.reg.MPABN1 = MPABN1__N1MPB(plane_b) | MPABN1__N1MPA(plane_b); // bits 5~0
vdp2.reg.MPCDN1 = MPCDN1__N1MPD(plane_b) | MPCDN1__N1MPC(plane_b); // bits 5~0 vdp2.reg.MPCDN1 = MPCDN1__N1MPD(plane_b) | MPCDN1__N1MPC(plane_b); // bits 5~0
vdp2.reg.PNCN1 = PNCN1__N1PNB__2WORD;
// cpu access // cpu access
vdp2.reg.CYCA0 = 0xeeeeeeee; vdp2.reg.CYCA0 = 0xeeeeeeee;
@ -140,13 +151,47 @@ void main()
top = character_pattern_data(&character_patterns[1], top); top = character_pattern_data(&character_patterns[1], top);
uint32_t pattern_base_1 = top / 32; uint32_t pattern_base_1 = top / 32;
pattern_name_table_data(&pattern_name_tables[0], #ifdef PNB_2WORD
// 2x2 cell
constexpr int plane_a_offset = plane_a * (0x4000 >> 2);
constexpr int plane_b_offset = plane_b * (0x4000 >> 2);
// 1x1 cell
//constexpr int plane_a_offset = plane_a * (0x10000 >> 2);
//constexpr int plane_b_offset = plane_b * (0x10000 >> 2);
vdp2.reg.PNCN0 = PNCN0__N0PNB__2WORD;
vdp2.reg.PNCN1 = PNCN1__N1PNB__2WORD;
pattern_name_table_data_2word(&pattern_name_tables[0],
plane_a_offset, plane_a_offset,
pattern_base_0); pattern_base_0);
pattern_name_table_data(&pattern_name_tables[1], pattern_name_table_data_2word(&pattern_name_tables[1],
plane_b_offset, plane_b_offset,
pattern_base_1); pattern_base_1);
#else
// 2x2 cell
//constexpr int plane_a_offset = plane_a * (0x2000 >> 2);
//constexpr int plane_b_offset = plane_b * (0x2000 >> 2);
// 1x1 cell
constexpr int plane_a_offset = plane_a * (0x8000 >> 2);
constexpr int plane_b_offset = plane_b * (0x8000 >> 2);
//vdp2.reg.PNCN0 = PNCN0__N0PNB__1WORD | PNCN0__N0SCN(((pattern_base_0 >> 12) & 0b111) << 2);
//vdp2.reg.PNCN1 = PNCN1__N1PNB__1WORD | PNCN1__N1SCN(((pattern_base_1 >> 12) & 0b111) << 2);
vdp2.reg.PNCN0 = PNCN0__N0PNB__1WORD | PNCN0__N0SCN(((pattern_base_0 >> 10) & 0b11111) << 0);
vdp2.reg.PNCN1 = PNCN1__N1PNB__1WORD | PNCN1__N1SCN(((pattern_base_1 >> 10) & 0b11111) << 0);
pattern_name_table_data_1word(&pattern_name_tables[0],
plane_a_offset,
pattern_base_0);
pattern_name_table_data_1word(&pattern_name_tables[1],
plane_b_offset,
pattern_base_1);
#endif
int sx = 0; int sx = 0;
int sy = 0; int sy = 0;