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rii: Misc. adjustments (nw)

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This commit is contained in:
AJR 2019-09-10 21:37:55 -04:00
parent 0cd99546dd
commit 5a24e6a29c
1 changed files with 6 additions and 5 deletions
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11
src/devices/cpu/rii/riscii.cpp
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@ -153,6 +153,7 @@ void riscii_series_device::device_reset()
m_tabptr = 0x000000; m_tabptr = 0x000000;
m_stkptr = 0x00; m_stkptr = 0x00;
m_cpucon &= 0x01; m_cpucon &= 0x01;
m_status |= 0xc0;
m_post_id = 0xf0; m_post_id = 0xf0;
m_exec_state = EXEC_CYCLE1; m_exec_state = EXEC_CYCLE1;
m_repeat = 0x00; m_repeat = 0x00;
@ -261,7 +262,7 @@ u8 riscii_series_device::tabptrh_r()
void riscii_series_device::tabptrh_w(u8 data) void riscii_series_device::tabptrh_w(u8 data)
{ {
m_tabptr = (m_tabptr & 0x00ffff) | u32(data & (0x80 | ((1 << (m_prgbits - 16)) - 1))) << 16; m_tabptr = (m_tabptr & 0x00ffff) | u32(data & (0x80 | ((1 << (m_prgbits - 15)) - 1))) << 16;
} }
u8 riscii_series_device::acc_r() u8 riscii_series_device::acc_r()
@ -301,7 +302,7 @@ u8 riscii_series_device::status_r()
void riscii_series_device::status_w(u8 data) void riscii_series_device::status_w(u8 data)
{ {
m_status = data; m_status = (m_status & 0xc0) | (data & 0x3f);
} }
u8 riscii_series_device::prodl_r() u8 riscii_series_device::prodl_r()
@ -751,7 +752,7 @@ void riscii_series_device::execute_ret(bool inte)
execute_jump((m_pc & 0xf0000) | swapendian_int16(m_regs->read_word(stkaddr))); execute_jump((m_pc & 0xf0000) | swapendian_int16(m_regs->read_word(stkaddr)));
m_stkptr += 2; m_stkptr += 2;
if (inte) if (inte)
m_cpucon |= 0x08; m_cpucon |= 0x04;
} }
void riscii_series_device::execute_wdtc() void riscii_series_device::execute_wdtc()
@ -1139,8 +1140,8 @@ void riscii_series_device::state_string_export(const device_state_entry &entry,
{ {
case STATE_GENFLAGS: case STATE_GENFLAGS:
str = string_format("%c%c%c%c%c%c%c%c", str = string_format("%c%c%c%c%c%c%c%c",
BIT(m_status, 7) ? 'T' : '.', // /TO BIT(m_status, 7) ? '.' : 'T', // /TO
BIT(m_status, 6) ? 'P' : '.', // /PD BIT(m_status, 6) ? '.' : 'P', // /PD
BIT(m_status, 5) ? 'G' : '.', // SGE BIT(m_status, 5) ? 'G' : '.', // SGE
BIT(m_status, 4) ? 'L' : '.', // SLE BIT(m_status, 4) ? 'L' : '.', // SLE
BIT(m_status, 3) ? 'V' : '.', // OV BIT(m_status, 3) ? 'V' : '.', // OV