Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-06-05 20:33:45 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

rx01_cpu: Add the rest of the branch conditions (nw)

Browse Source
This commit is contained in:
AJR 2020-04-15 20:36:10 -04:00
parent 0709c3fe27
commit a977684012
2 changed files with 31 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
src/devices/cpu/rx01/rx01.cpp
View File

@ -55,6 +55,7 @@ rx01_cpu_device::rx01_cpu_device(const machine_config &mconfig, const char *tag,
, m_flags(0)
, m_unit(false)
, m_load_head(false)
, m_syn_index(false)
, m_icount(0)
{
std::fill(std::begin(m_sp), std::end(m_sp), 0);
@ -95,6 +96,7 @@ void rx01_cpu_device::device_start()
state_add(RX01_CRC, "CRC", m_crc).formatstr("%06O");
state_add(RX01_UNIT, "UNIT", m_unit);
state_add(RX01_LDHD, "LDHD", m_load_head);
state_add(RX01_INDEX, "INDEX", m_syn_index);
// Save state registration
save_item(NAME(m_pc));
@ -111,6 +113,7 @@ void rx01_cpu_device::device_start()
save_item(NAME(m_flags));
save_item(NAME(m_unit));
save_item(NAME(m_load_head));
save_item(NAME(m_syn_index));
}
void rx01_cpu_device::device_reset()
@ -149,6 +152,12 @@ bool rx01_cpu_device::sep_data()
return false;
}
bool rx01_cpu_device::sep_clk()
{
// TODO
return false;
}
bool rx01_cpu_device::missing_clk()
{
// TODO
@ -185,6 +194,10 @@ bool rx01_cpu_device::test_condition()
// Serial data from interface
return data_in();
case 014:
// Drive index latch
return m_syn_index;
case 020:
// MSB of shift register
return BIT(m_sr, 7);
@ -201,6 +214,18 @@ bool rx01_cpu_device::test_condition()
// Track zero of selected drive on head
return (m_flags & FF_IOB0) && (m_flags & FF_IOB3) && drv_sel_trk0();
case 040:
// Drive write protect (TODO)
return false;
case 044:
// Separated clock
return sep_clk();
case 050:
// 12-bit interface mode selected (TODO)
return false;
case 054:
// Separated data equals shift register MSB
return BIT(m_sr, 7) == sep_data();
@ -225,7 +250,8 @@ bool rx01_cpu_device::test_condition()
return (m_flags & FF_FLAG) != 0;
default:
LOG("%04o: Unhandled branch condition %d\n", m_ppc, (m_mb & 074) >> 2);
// Shouldn't happen
logerror("%04o: Unhandled branch condition %d\n", m_ppc, (m_mb & 074) >> 2);
return true;
}
}
@ -357,6 +383,7 @@ void rx01_cpu_device::execute_run()
case 040:
m_load_head = BIT(m_mb, 1);
m_syn_index = false;
break;
case 044:

4
src/devices/cpu/rx01/rx01.h
View File

@ -16,7 +16,7 @@ public:
RX01_R8, RX01_R9, RX01_R10, RX01_R11, RX01_R12, RX01_R13, RX01_R14, RX01_R15,
RX01_BAR,
RX01_CRC,
RX01_UNIT, RX01_LDHD
RX01_UNIT, RX01_LDHD, RX01_INDEX
};
enum : u16 {
@ -58,6 +58,7 @@ private:
u8 mux_out();
bool data_in();
bool sep_data();
bool sep_clk();
bool missing_clk();
bool drv_sel_trk0();
bool sec_buf_in();
@ -88,6 +89,7 @@ private:
u16 m_flags;
bool m_unit;
bool m_load_head;
bool m_syn_index;
s32 m_icount;
};