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fix my stupidity - thanks Happy and Ryan (nw)

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This commit is contained in:
Vas Crabb 2016-06-22 18:47:19 +10:00
parent 54cbe17bbd
commit c8993e81b3
1 changed files with 3 additions and 3 deletions
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6
src/devices/cpu/sparc/mb86901.cpp
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@ -550,7 +550,7 @@ bool mb86901_device::execute_group2(UINT32 op)
{ {
UINT32 result = arg1 - arg2; UINT32 result = arg1 - arg2;
TEST_ICC_NZ(result); TEST_ICC_NZ(result);
if ((arg1 & 0x80000000) == (arg2 & 0x80000000) && (arg2 & 0x80000000) != (result & 0x80000000)) if ((arg1 & 0x80000000) != (arg2 & 0x80000000) && (arg2 & 0x80000000) != (result & 0x80000000))
SET_ICC_V_FLAG; SET_ICC_V_FLAG;
if (result > arg1) if (result > arg1)
SET_ICC_C_FLAG; SET_ICC_C_FLAG;
@ -612,10 +612,10 @@ bool mb86901_device::execute_group2(UINT32 op)
case 28: // subxcc case 28: // subxcc
{ {
UINT32 c = (ICC_C_SET ? 1 : 0); UINT32 c = (ICC_C_SET ? 1 : 0);
UINT32 argt = arg2 - c; UINT32 argt = arg2 + c;
UINT32 result = arg1 - argt; UINT32 result = arg1 - argt;
TEST_ICC_NZ(result); TEST_ICC_NZ(result);
if (((arg1 & 0x80000000) == (argt & 0x80000000) && (arg1 & 0x80000000) != (result & 0x80000000)) || (c != 0 && arg2 == 0x80000000)) if (((arg1 & 0x80000000) != (argt & 0x80000000) && (arg1 & 0x80000000) != (result & 0x80000000)) || (c != 0 && arg2 == 0x80000000))
SET_ICC_V_FLAG; SET_ICC_V_FLAG;
if (result > arg1 || (result == arg1 && arg2 != 0)) if (result > arg1 || (result == arg1 && arg2 != 0))
SET_ICC_C_FLAG; SET_ICC_C_FLAG;