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Dump real mode registers under bootverbose to help debugging BIOS emulator.

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This commit is contained in:
jkim 2009-09-24 22:42:35 +00:00
parent df5a33082a
commit 21b9526006
1 changed files with 10 additions and 0 deletions
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10
sys/compat/x86bios/x86bios.c
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@ -97,6 +97,11 @@ x86bios_intr(struct x86regs *regs, int intno)
if (intno < 0 || intno > 255)
return;
if (bootverbose)
printf("Calling real mode int 0x%x "
"(ax=0x%04x bx=0x%04x cx=0x%04x dx=0x%04x)\n",
intno, regs->R_AX, regs->R_BX, regs->R_CX, regs->R_DX);
mtx_lock_spin(&x86bios_lock);
memcpy(&x86bios_emu.x86, regs, sizeof(*regs));
@ -104,6 +109,11 @@ x86bios_intr(struct x86regs *regs, int intno)
memcpy(regs, &x86bios_emu.x86, sizeof(*regs));
mtx_unlock_spin(&x86bios_lock);
if (bootverbose)
printf("Exiting real mode int 0x%x "
"(ax=0x%04x bx=0x%04x cx=0x%04x dx=0x%04x)\n",
intno, regs->R_AX, regs->R_BX, regs->R_CX, regs->R_DX);
}
void *