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clipper: minor bugfix (nw) (#3731)

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This enables SoftPC to run.
This commit is contained in:
Patrick Mackinlay 2018-07-06 16:11:13 +07:00 committed by Olivier Galibert
parent f3ccd1f7f2
commit 06700b3c52
2 changed files with 7 additions and 7 deletions
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10
src/devices/cpu/clipper/clipper.cpp
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@ -1265,12 +1265,12 @@ void clipper_device::execute_instruction()
// saved0..saved7: push registers fN:f7
// store fi at sp - 8 * (8 - i)
for (int i = R2; i < 8 && !m_exception; i++)
for (int i = m_info.subopcode & 0x7; i < 8 && !m_exception; i++)
get_dcammu().store<float64>(m_ssw, m_r[15] - 8 * (8 - i), get_fp64(i));
// decrement sp after push to allow restart on exceptions
if (!m_exception)
m_r[15] -= 8 * (8 - R2);
m_r[15] -= 8 * (8 - m_info.subopcode & 0x7);
// TRAPS: A,P,W
break;
case 0x28: case 0x29: case 0x2a: case 0x2b:
@ -1278,12 +1278,12 @@ void clipper_device::execute_instruction()
// restd0..restd7: pop registers fN:f7
// load fi from sp + 8 * (i - N)
for (int i = R2; i < 8 && !m_exception; i++)
get_dcammu().load<float64>(m_ssw, m_r[15] + 8 * (i - R2), [this, i](float64 v) { set_fp(i, v, F_NONE); });
for (int i = m_info.subopcode & 0x7; i < 8 && !m_exception; i++)
get_dcammu().load<float64>(m_ssw, m_r[15] + 8 * (i - m_info.subopcode & 0x7), [this, i](float64 v) { set_fp(i, v, F_NONE); });
// increment sp after pop to allow restart on exceptions
if (!m_exception)
m_r[15] += 8 * (8 - R2);
m_r[15] += 8 * (8 - m_info.subopcode & 0x7);
// TRAPS: C,U,A,P,R
break;
case 0x30:

4
src/devices/cpu/clipper/clipperd.cpp
View File

@ -273,12 +273,12 @@ offs_t clipper_disassembler::disassemble(std::ostream &stream, offs_t pc, const
case 0x20: case 0x21: case 0x22: case 0x23:
case 0x24: case 0x25: case 0x26: case 0x27:
util::stream_format(stream, "saved%d", R2);
util::stream_format(stream, "saved%d", opcodes.r16(pc) & 0x7);
break;
case 0x28: case 0x29: case 0x2a: case 0x2b:
case 0x2c: case 0x2d: case 0x2e: case 0x2f:
util::stream_format(stream, "restd%d", R2);
util::stream_format(stream, "restd%d", opcodes.r16(pc) & 0x7);
break;
case 0x30: util::stream_format(stream, "cnvsw f%d,r%d", (opcodes.r16(pc+2) & 0xf0) >> 4, opcodes.r16(pc+2) & 0xf); break;