Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-23 08:49:55 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

pc88va.cpp: missed this one ugh (nw)

Browse Source
This commit is contained in:
angelosa 2018-06-26 23:44:36 +02:00
parent 15e24ef2cc
commit 3bb3ebf099
1 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/mame/drivers/pc88va.cpp
View File

@ -19,7 +19,7 @@
hooked up by the current z80 core
- PC-88VA stock version has two bogus opcodes. One is at 0xf0b15, another at 0xf0b31.
Making a patch for the latter makes the system to jump into a "DIP-Switch" display.
bp f0b31,pc=0xf0b36
bp f0b31,pc=0xf0b36,g
- unemulated upd71071 demand mode.
- Fix floppy motor hook-up;
@ -536,12 +536,15 @@ WRITE8_MEMBER(pc88va_state::idp_command_w)
}
}
// TODO: checkout this one
void pc88va_state::tsp_sprite_enable(uint32_t spr_offset, uint16_t sw_bit)
{
address_space &space = m_maincpu->space(AS_PROGRAM);
uint32_t target_offset = (spr_offset & 0xffff)/2;
// address_space &space = m_maincpu->space(AS_PROGRAM);
space.write_word(spr_offset, space.read_word(spr_offset) & ~0x200);
space.write_word(spr_offset, space.read_word(spr_offset) | (sw_bit & 0x200));
// space.write_word(spr_offset, space.read_word(spr_offset) & ~0x200);
// space.write_word(spr_offset, space.read_word(spr_offset) | (sw_bit & 0x200));
m_tvram[target_offset] = (m_tvram[target_offset] & ~0x200) | (sw_bit & 0x200);
}
/* TODO: very preliminary, needs something showable first */
@ -629,7 +632,7 @@ void pc88va_state::execute_curdef_cmd()
m_tsp.curn = (m_buf_ram[0] & 0xf8);
m_tsp.curn_blink = (m_buf_ram[0] & 1);
tsp_sprite_enable(0xa0000 + m_tsp.spr_offset + m_tsp.curn, (m_buf_ram[0] & 2) << 8);
tsp_sprite_enable(m_tsp.spr_offset + m_tsp.curn, (m_buf_ram[0] & 2) << 8);
}
void pc88va_state::execute_actscr_cmd()
@ -691,7 +694,7 @@ void pc88va_state::execute_sprsw_cmd()
[0] ---- --x- sprite off/on switch
*/
tsp_sprite_enable(0xa0000 + m_tsp.spr_offset + (m_buf_ram[0] & 0xf8), (m_buf_ram[0] & 2) << 8);
tsp_sprite_enable(m_tsp.spr_offset + (m_buf_ram[0] & 0xf8), (m_buf_ram[0] & 2) << 8);
}
WRITE8_MEMBER(pc88va_state::idp_param_w)