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Fix gts1_lamp_apm_w offsets. Set bit 8+9 of PROM addr from group C bits 1+0 (nw)

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jbu 2014-12-11 12:34:48 +01:00
parent e8907a4fbf
commit 937beaa1c0
1 changed files with 7 additions and 5 deletions
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12
src/mame/drivers/gts1.c
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@ -105,7 +105,7 @@ private:
required_device<cpu_device> m_maincpu; required_device<cpu_device> m_maincpu;
UINT8 m_io[256]; UINT8 m_io[256];
UINT8 m_nvram_addr; UINT8 m_nvram_addr;
UINT8 m_6351_addr; UINT16 m_6351_addr;
UINT16 m_z30_out; UINT16 m_z30_out;
}; };
@ -424,13 +424,15 @@ READ8_MEMBER (gts1_state::gts1_lamp_apm_r)
WRITE8_MEMBER(gts1_state::gts1_lamp_apm_w) WRITE8_MEMBER(gts1_state::gts1_lamp_apm_w)
{ {
switch (offset) { switch (offset) {
case 0: // DS0-DS4 case 0: // LD1-LD4 on jumper J5
break; break;
case 1: // LD1-LD4 on jumper J5 case 1: // Z30 1-of-16 decoder
break;
case 2: // Z30 1-of-16 decoder
m_z30_out = 1 << (data & 15); m_z30_out = 1 << (data & 15);
break; break;
case 2: // O9: PGOL PROM A8, O10: PGOL PROM A9
m_6351_addr = (m_6351_addr & ~(3 << 8)) | ((data & 3) << 8);
// O11 and O12 are unused(?)
break;
} }
} }