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sfcbox: Coverity 315419

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This commit is contained in:
Robbbert 2021-02-13 22:29:10 +11:00
parent 5ce403ec4c
commit e8a798aba3
1 changed files with 8 additions and 9 deletions
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17
src/mame/drivers/sfcbox.cpp
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@ -205,8 +205,8 @@ void sfcbox_state::port_80_w(uint8_t data)
---- ---x SNES Transfer STAT to SNES (Bit2 of WRIO/RDIO on SNES side)
*/
SNES_CPU_REG(WRIO) = ((data & 4) >> 1) | (SNES_CPU_REG(WRIO) & ~0x02); // DATA
SNES_CPU_REG(WRIO) = ((data & 2) << 4) | (SNES_CPU_REG(WRIO) & ~0x20); // CLOCK
SNES_CPU_REG(WRIO) = ((data & 1) << 2) | (SNES_CPU_REG(WRIO) & ~0x04); // STAT
SNES_CPU_REG(WRIO) |= (((data & 2) << 4) | (SNES_CPU_REG(WRIO) & ~0x20)); // CLOCK
SNES_CPU_REG(WRIO) |= (((data & 1) << 2) | (SNES_CPU_REG(WRIO) & ~0x04)); // STAT
}
@ -222,16 +222,15 @@ uint8_t sfcbox_state::port_81_r()
---- --x- SNES Transfer ACK from SNES (Bit3 of WRIO/RDIO on SNES side)
---- ---x Int0 Request (Coin-Input, Low for 44ms..80ms) (0=IRQ, 1=No)
*/
uint8_t res;
res = (m_screen->vblank() & 1) << 7;
res = 1 << 6;
res = 0 << 5;
res = 0 << 4;
res = 0 << 3;
u8 res = (m_screen->vblank() & 1) << 7;
res |= 1 << 6;
//res |= 0 << 5;
//res |= 0 << 4;
//res |= 0 << 3;
res |= ((SNES_CPU_REG(WRIO) & 0x10) >> 4) << 2; // DATA to main
res |= ((SNES_CPU_REG(WRIO) & 0x08) >> 3) << 1; // ACK to main
res = 1 << 0;
res |= 1 << 0;
return res;
}