diff options
Diffstat (limited to 'src/emu/cpu/pps4/pps4.c')
-rw-r--r-- | src/emu/cpu/pps4/pps4.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/emu/cpu/pps4/pps4.c b/src/emu/cpu/pps4/pps4.c index ddcd2501189..e5cc2134adb 100644 --- a/src/emu/cpu/pps4/pps4.c +++ b/src/emu/cpu/pps4/pps4.c @@ -115,7 +115,7 @@ offs_t pps4_device::disasm_disassemble(char *buffer, offs_t pc, const UINT8 *opr */ inline UINT8 pps4_device::ROP() { - m_Ip = m_I & 0xf0; // set previous opcode mask + m_Ip = m_I; // set previous opcode m_I = m_direct->read_decrypted_byte(m_P & 0xFFF); m_P = (m_P + 1) & 0xFFF; m_icount -= 1; @@ -580,7 +580,7 @@ void pps4_device::iEXD() void pps4_device::iLDI() { // previous LDI instruction? - if (0x70 == m_Ip) { + if (0x70 == (m_Ip & 0xf0)) { LOG(("%s: skip prev:%02x op:%02x\n", __FUNCTION__, m_Ip, m_I)); return; } @@ -792,7 +792,7 @@ void pps4_device::iCYS() } /** - * @brief pps4_device::iLB + * @brief pps4_device::iLB Load B indirect * OPCODE cycles mnemonic * ----------------------------- * 1100 xxxx 2 cyc LB x @@ -827,7 +827,7 @@ void pps4_device::iCYS() void pps4_device::iLB() { // previous LB or LBL instruction? - if (0xc0 == m_Ip|| 0x00 == m_Ip) { + if (0xc0 == (m_Ip & 0xf0) || 0x00 == m_Ip) { LOG(("%s: skip prev:%02x op:%02x\n", __FUNCTION__, m_Ip, m_I)); return; } @@ -843,7 +843,7 @@ void pps4_device::iLB() } /** - * @brief pps4_device::iLBL + * @brief pps4_device::iLBL Load B long * OPCODE cycles mnemonic * ----------------------------- * 0000 0000 2 cyc LBL @@ -869,7 +869,7 @@ void pps4_device::iLBL() { const UINT8 i8 = ~ARG() & 255; // previous LB or LBL instruction? - if (0xc0 == m_Ip || 0x00 == m_Ip) { + if (0xc0 == (m_Ip & 0xf0) || 0x00 == m_Ip) { LOG(("%s: skip prev:%02x op:%02x\n", __FUNCTION__, m_Ip, m_I)); return; } |