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pc9801: try again to handle pcg chars

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This commit is contained in:
cracyc 2024-10-03 19:32:02 -05:00
parent 366d6fea79
commit 22eaae049d
1 changed files with 9 additions and 3 deletions
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12
src/mame/nec/pc9801_v.cpp
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@ -101,6 +101,7 @@ void pc9801_state::draw_text(bitmap_rgb32 &bitmap, uint32_t addr, int y, int wd,
uint8_t kanji_sel = 0;
uint8_t kanji_lr = 0;
uint8_t tile_lr = 0;
uint16_t tile = m_video_ram[0][tile_addr & 0xfff] & 0xff;
uint8_t knj_tile = m_video_ram[0][tile_addr & 0xfff] >> 8;
@ -115,7 +116,12 @@ void pc9801_state::draw_text(bitmap_rgb32 &bitmap, uint32_t addr, int y, int wd,
tile <<= 8;
tile |= (knj_tile & 0x7f);
kanji_sel = 1;
if(((tile & 0x7c00) == 0x0800) || ((tile & 0xfe00) == 0x5600)) // 8x16 charset selector
if((tile & 0xfe00) == 0x5600)
{
tile_lr = knj_tile & 0x80 ? 1 : 0;
x_step = 1;
}
else if((tile & 0x7c00) == 0x0800) // 8x16 charset selector
x_step = 1;
else
x_step = 2;
@ -128,7 +134,7 @@ void pc9801_state::draw_text(bitmap_rgb32 &bitmap, uint32_t addr, int y, int wd,
{
/* Rori Rori Rolling definitely uses different colors for brake stop PCG elements,
assume that all attributes are recalculated on different strips */
uint8_t attr = (m_video_ram[0][((tile_addr+kanji_lr) & 0xfff) | 0x1000] & 0xff);
uint8_t attr = (m_video_ram[0][((tile_addr+kanji_lr+tile_lr) & 0xfff) | 0x1000] & 0xff);
uint8_t secret = (attr & 1) ^ 1;
uint8_t blink = attr & 2;
@ -193,7 +199,7 @@ void pc9801_state::draw_text(bitmap_rgb32 &bitmap, uint32_t addr, int y, int wd,
tile_data = ((tile >> gfx_bit) & 1) ? 0xff : 0x00;
}
else if(kanji_sel)
tile_data = (m_kanji_rom[tile*0x20+yi*2+kanji_lr]);
tile_data = (m_kanji_rom[tile*0x20+yi*2+kanji_lr+tile_lr]);
else
tile_data = (m_char_rom[tile*char_size+m_video_ff[FONTSEL_REG]*0x800+yi]);
}