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https://github.com/holub/mame
synced 2025-04-22 16:31:49 +03:00
mips1: magic number removal and more logging (nw)
This commit is contained in:
Patrick Mackinlay
parent
8a754b17a1
commit
130955fef2
@ -318,98 +318,105 @@ void mips1core_device_base::generate_exception(u32 exception, bool refill)
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"mount", "hdwconf", "exportfs", "nfsfh_open", "libattach", "libdetach"
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};
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static char const *const msg_syscalls[] = { "msgget", "msgctl", "msgrcv", "msgsnd" };
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static char const *const shm_syscalls[] = { "shmat", "shmctl", "shmdt", "shmget" };
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static char const *const sem_syscalls[] = { "semctl", "semget", "semop" };
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static char const *const mips_syscalls[] = { "mipskopt", "mipshwconf", "mipsgetrusage", "mipswait", "mipscacheflush", "mipscachectl" };
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int const asid = (m_cpr[0][COP0_EntryHi] & EH_ASID) >> 6;
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switch (m_r[2])
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{
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case 1000: // indirect
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switch (m_r[4])
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{
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case 2151: // sysmips
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case 1049: // msgsys
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LOGMASKED(LOG_RISCOS, "asid %d syscall msgsys:%s() (%s)\n",
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asid, (m_r[5] < ARRAY_LENGTH(msg_syscalls)) ? msg_syscalls[m_r[5]] : "unknown", machine().describe_context());
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break;
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case 1052: // shmsys
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LOGMASKED(LOG_RISCOS, "asid %d syscall shmsys:%s() (%s)\n",
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asid, (m_r[5] < ARRAY_LENGTH(shm_syscalls)) ? shm_syscalls[m_r[5]] : "unknown", machine().describe_context());
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break;
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case 1053: // semsys
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LOGMASKED(LOG_RISCOS, "asid %d syscall semsys:%s() (%s)\n",
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asid, (m_r[5] < ARRAY_LENGTH(sem_syscalls)) ? sem_syscalls[m_r[5]] : "unknown", machine().describe_context());
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break;
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case 2151: // bsd_sysmips
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switch (m_r[5])
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{
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case 0x100: // mipskopt
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LOGMASKED(LOG_RISCOS, "asid %d syscall indirect:sysmips:mipskopt(\"%s\") (%s)\n",
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LOGMASKED(LOG_RISCOS, "asid %d syscall bsd_sysmips:mipskopt(\"%s\") (%s)\n",
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asid, debug_string(m_r[6]), machine().describe_context());
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break;
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case 0x101: // mipshwconf
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LOGMASKED(LOG_RISCOS, "asid %d syscall indirect:sysmips:mipshwconf() (%s)\n",
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asid, machine().describe_context());
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break;
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case 0x102: // mipsgetrusage
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LOGMASKED(LOG_RISCOS, "asid %d syscall indirect:sysmips:mipsgetrusage() (%s)\n",
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asid, machine().describe_context());
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break;
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case 0x103: // mipswait
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LOGMASKED(LOG_RISCOS, "asid %d syscall indirect:sysmips:mipswait() (%s)\n",
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asid, machine().describe_context());
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break;
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case 0x104: // mipscacheflush
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LOGMASKED(LOG_RISCOS, "asid %d syscall indirect:sysmips:mipscacheflush() (%s)\n",
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asid, machine().describe_context());
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break;
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case 0x105: // mipscachectl
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LOGMASKED(LOG_RISCOS, "asid %d syscall indirect:sysmips:mipscachectl() (%s)\n",
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asid, machine().describe_context());
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break;
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default:
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LOGMASKED(LOG_RISCOS, "asid %d syscall indirect:sysmips:unknown 0x%x (%s)\n",
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asid, m_r[5], machine().describe_context());
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if ((m_r[5] > 0x100) && (m_r[5] - 0x100) < ARRAY_LENGTH(mips_syscalls))
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LOGMASKED(LOG_RISCOS, "asid %d syscall bsd_sysmips:%s() (%s)\n",
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asid, mips_syscalls[m_r[5] - 0x100], machine().describe_context());
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else
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LOGMASKED(LOG_RISCOS, "asid %d syscall bsd_sysmips:unknown %d (%s)\n",
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asid, m_r[5], machine().describe_context());
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break;
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}
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break;
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default:
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if ((m_r[4] > 2000) && (m_r[4] - 2000 < ARRAY_LENGTH(bsd_syscalls)) && bsd_syscalls[m_r[4] - 2000])
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LOGMASKED(LOG_RISCOS, "asid %d syscall indirect:%s() (%s)\n",
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LOGMASKED(LOG_RISCOS, "asid %d syscall bsd_%s() (%s)\n",
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asid, bsd_syscalls[m_r[4] - 2000], machine().describe_context());
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else
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LOGMASKED(LOG_RISCOS, "asid %d syscall indirect:unknown 0x%x (%s)\n",
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LOGMASKED(LOG_RISCOS, "asid %d syscall indirect:unknown %d (%s)\n",
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asid, m_r[4], machine().describe_context());
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break;
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}
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break;
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case 1003: // read
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case 1006: // close
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case 1054: // ioctl
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case 1169: // fcntl
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LOGMASKED(LOG_RISCOS, "asid %d syscall %s(%d) (%s)\n",
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asid, sysv_syscalls[m_r[2] - 1000], m_r[4], machine().describe_context());
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break;
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case 1004: // write
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if (m_r[4] == 1 || m_r[4] == 2)
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LOGMASKED(LOG_RISCOS, "asid %d syscall %s(%d, \"%s\") (%s)\n",
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asid, sysv_syscalls[m_r[2] - 1000], m_r[4], debug_string(m_r[5], m_r[6]), machine().describe_context());
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else
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LOGMASKED(LOG_RISCOS, "asid %d syscall %s(%d) (%s)\n",
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asid, sysv_syscalls[m_r[2] - 1000], m_r[4], machine().describe_context());
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break;
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case 1005: // open
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LOGMASKED(LOG_RISCOS, "asid %d syscall open(\"%s\") (%s)\n",
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asid, debug_string(m_r[4]), machine().describe_context());
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break;
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case 1008: // creat
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case 1009: // link
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LOGMASKED(LOG_RISCOS, "asid %d syscall link(\"%s\", \"%s\") (%s)\n",
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asid, debug_string(m_r[4]), debug_string(m_r[5]), machine().describe_context());
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break;
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case 1010: // unlink
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LOGMASKED(LOG_RISCOS, "asid %d syscall unlink(\"%s\") (%s)\n",
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asid, debug_string(m_r[4]), machine().describe_context());
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break;
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case 1012: // chdir
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case 1018: // stat
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LOGMASKED(LOG_RISCOS, "asid %d syscall stat(\"%s\") (%s)\n",
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asid, debug_string(m_r[4]), machine().describe_context());
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case 1033: // access
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LOGMASKED(LOG_RISCOS, "asid %d syscall %s(\"%s\") (%s)\n",
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asid, sysv_syscalls[m_r[2] - 1000], debug_string(m_r[4]), machine().describe_context());
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break;
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case 1059: // execve
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LOGMASKED(LOG_RISCOS, "asid %d syscall execve(\"%s\", [ %s ]) (%s)\n",
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asid, debug_string(m_r[4]), debug_string_array(m_r[5]), machine().describe_context());
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LOGMASKED(LOG_RISCOS, "asid %d syscall execve(\"%s\", [ %s ], [ %s ]) (%s)\n",
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asid, debug_string(m_r[4]), debug_string_array(m_r[5]), debug_string_array(m_r[6]), machine().describe_context());
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break;
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case 1060: // umask
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LOGMASKED(LOG_RISCOS, "asid %d syscall umask(0%o) (%s)\n",
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asid, m_r[4], machine().describe_context());
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LOGMASKED(LOG_RISCOS, "asid %d syscall umask(%#o) (%s)\n",
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asid, m_r[4] & 0777, machine().describe_context());
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break;
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default:
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if ((m_r[2] > 1000) && (m_r[2] - 1000 < ARRAY_LENGTH(sysv_syscalls)) && sysv_syscalls[m_r[2] - 1000])
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LOGMASKED(LOG_RISCOS, "asid %d syscall %s() (%s)\n", asid, sysv_syscalls[m_r[2] - 1000], machine().describe_context());
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else
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LOGMASKED(LOG_RISCOS, "asid %d syscall unknown 0x%x (%s)\n", asid, m_r[2], machine().describe_context());
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LOGMASKED(LOG_RISCOS, "asid %d syscall unknown %d (%s)\n", asid, m_r[2], machine().describe_context());
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break;
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}
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}
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@ -429,7 +436,7 @@ void mips1core_device_base::generate_exception(u32 exception, bool refill)
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m_branch_state = EXCEPTION;
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// shift the exception bits
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SR = (SR & ~SR_KUIE) | ((SR << 2) & (SR_KUo | SR_IEo | SR_KUp | SR_IEp));
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SR = (SR & ~SR_KUIE) | ((SR << 2) & SR_KUIEop);
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if (refill)
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m_pc = (SR & SR_BEV) ? 0xbfc00100 : 0x80000000;
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@ -441,16 +448,16 @@ void mips1core_device_base::generate_exception(u32 exception, bool refill)
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void mips1core_device_base::check_irqs()
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{
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if ((CAUSE & SR & 0xff00) && (SR & SR_IEc))
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if ((CAUSE & SR & SR_IM) && (SR & SR_IEc))
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generate_exception(EXCEPTION_INTERRUPT);
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}
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void mips1core_device_base::set_irq_line(int irqline, int state)
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{
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if (state != CLEAR_LINE)
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CAUSE |= 0x400 << irqline;
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CAUSE |= CAUSE_IPEX0 << irqline;
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else
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CAUSE &= ~(0x400 << irqline);
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CAUSE &= ~(CAUSE_IPEX0 << irqline);
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check_irqs();
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}
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@ -473,7 +480,7 @@ void mips1core_device_base::set_cop0_reg(int const index, u32 const data)
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{
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if (index == COP0_Cause)
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{
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CAUSE = (CAUSE & 0xfc00) | (data & ~0xfc00);
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CAUSE = (CAUSE & CAUSE_IPEX) | (data & ~CAUSE_IPEX);
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// update interrupts -- software ints can occur this way
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check_irqs();
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@ -534,7 +541,7 @@ void mips1core_device_base::handle_cop0(u32 const op)
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case 0x02: /* TLBWI */ break;
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case 0x06: /* TLBWR */ break;
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case 0x08: /* TLBP */ break;
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case 0x10: /* RFE */ SR = (SR & 0xfffffff0) | ((SR >> 2) & 0x0f); break;
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case 0x10: /* RFE */ SR = (SR & ~SR_KUIEpc) | ((SR >> 2) & SR_KUIEpc); break;
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case 0x18: /* ERET */ generate_exception(EXCEPTION_INVALIDOP); break;
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default: generate_exception(EXCEPTION_INVALIDOP); break;
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}
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@ -1172,7 +1179,7 @@ bool mips1_device_base::memory_translate(int spacenum, int intention, offs_t &ad
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return true;
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}
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if (!machine().side_effects_disabled())
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if (!machine().side_effects_disabled() && !(intention & TRANSLATE_DEBUG_MASK))
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{
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if (VERBOSE & LOG_TLB)
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{
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@ -1195,26 +1202,32 @@ bool mips1_device_base::memory_translate(int spacenum, int intention, offs_t &ad
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return false;
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}
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std::string mips1core_device_base::debug_string(u32 string_pointer)
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std::string mips1core_device_base::debug_string(u32 string_pointer, int const limit)
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{
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auto const suppressor(machine().disable_side_effects());
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bool done = false;
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bool mapped = false;
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std::string result("");
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while (!done)
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{
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done = true;
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load<u8>(string_pointer++, [&done, &result](u8 byte)
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load<u8>(string_pointer++, [limit, &done, &mapped, &result](u8 byte)
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{
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mapped = true;
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if (byte != 0)
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{
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result += byte;
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done = false;
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done = result.length() == limit;
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}
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});
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}
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if (!mapped)
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result.assign("[unmapped]");
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return result;
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}
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@ -131,15 +131,28 @@ protected:
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SR_COP2 = 0x40000000, // coprocessor 2 usable
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SR_COP3 = 0x80000000, // coprocessor 3 usable
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SR_KUIE = 0x0000003f, // all interrupt enable and user mode bits
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SR_KUIE = 0x0000003f, // all interrupt enable and user mode bits
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SR_KUIEpc = 0x0000000f, // previous and current interrupt enable and user mode bits
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SR_KUIEop = 0x0000003c, // old and previous interrupt enable and user mode bits
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SR_IM = 0x0000ff00, // all interrupt mask bits
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};
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enum cause_mask : u32
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{
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CAUSE_EXCCODE = 0x0000007c, // exception code
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CAUSE_IPSW0 = 0x00000100, // software interrupt 0 pending
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CAUSE_IPSW1 = 0x00000200, // software interrupt 1 pending
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CAUSE_IPEX0 = 0x00000400, // external interrupt 0 pending
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CAUSE_IPEX1 = 0x00000800, // external interrupt 1 pending
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CAUSE_IPEX2 = 0x00001000, // external interrupt 2 pending
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CAUSE_IPEX3 = 0x00002000, // external interrupt 3 pending
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CAUSE_IPEX4 = 0x00004000, // external interrupt 4 pending
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CAUSE_IPEX5 = 0x00008000, // external interrupt 5 pending
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CAUSE_IP = 0x0000ff00, // interrupt pending
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CAUSE_CE = 0x30000000, // co-processor error
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CAUSE_BD = 0x80000000, // branch delay
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CAUSE_IPEX = 0x0000fc00, // external interrupt pending
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};
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enum entryhi_mask : u32
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@ -216,7 +229,7 @@ protected:
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bool fetch(u32 program_address, std::function<void(u32)> &&apply);
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// debug helpers
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std::string debug_string(u32 string_pointer);
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std::string debug_string(u32 string_pointer, int const limit = 0);
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std::string debug_string_array(u32 array_pointer);
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// address spaces
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