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i386: call with expand down stack [Carl]

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This commit is contained in:
cracyc 2014-11-01 08:57:11 -05:00
parent 384f7653e1
commit ff9eb84182
1 changed files with 6 additions and 6 deletions
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12
src/emu/cpu/i386/i386.c
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@ -1686,17 +1686,17 @@ void i386_device::i386_protected_mode_call(UINT16 seg, UINT32 off, int indirect,
} }
if (operand32 != 0) // if 32-bit if (operand32 != 0) // if 32-bit
{ {
if(REG32(ESP) < 8) if(i386_limit_check(SS, REG32(ESP) - 8))
{ {
logerror("CALL: Stack has no room for return address.\n"); logerror("CALL (%08x): Stack has no room for return address.\n",m_pc);
FAULT(FAULT_SS,0) // #SS(0) FAULT(FAULT_SS,0) // #SS(0)
} }
} }
else else
{ {
if(REG16(SP) < 4) if(i386_limit_check(SS, (REG16(SP) - 4) & 0xffff))
{ {
logerror("CALL: Stack has no room for return address.\n"); logerror("CALL (%08x): Stack has no room for return address.\n",m_pc);
FAULT(FAULT_SS,0) // #SS(0) FAULT(FAULT_SS,0) // #SS(0)
} }
} }
@ -1944,7 +1944,7 @@ void i386_device::i386_protected_mode_call(UINT16 seg, UINT32 off, int indirect,
/* same privilege */ /* same privilege */
if (operand32 != 0) // if 32-bit if (operand32 != 0) // if 32-bit
{ {
if(REG32(ESP) < 8) if(i386_limit_check(SS, REG32(ESP) - 8))
{ {
logerror("CALL: Stack has no room for return address.\n"); logerror("CALL: Stack has no room for return address.\n");
FAULT(FAULT_SS,0) // #SS(0) FAULT(FAULT_SS,0) // #SS(0)
@ -1954,7 +1954,7 @@ void i386_device::i386_protected_mode_call(UINT16 seg, UINT32 off, int indirect,
} }
else else
{ {
if(REG16(SP) < 4) if(i386_limit_check(SS, (REG16(SP) - 4) & 0xffff))
{ {
logerror("CALL: Stack has no room for return address.\n"); logerror("CALL: Stack has no room for return address.\n");
FAULT(FAULT_SS,0) // #SS(0) FAULT(FAULT_SS,0) // #SS(0)