diff options
Diffstat (limited to 'sim/v850/v850.igen')
| -rw-r--r-- | sim/v850/v850.igen | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/sim/v850/v850.igen b/sim/v850/v850.igen index 4796ea5..6617bd8 100644 --- a/sim/v850/v850.igen +++ b/sim/v850/v850.igen @@ -171,9 +171,9 @@ rrrrr,11111100000 + wwwww,01101000010:XII:::bsh GR[reg3] = value; PSW &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV); - if (value == 0) PSW |= PSW_Z; + if ((value & 0xffff) == 0) PSW |= PSW_Z; if (value & 0x80000000) PSW |= PSW_S; - if (((value & 0xff) == 0) || (value & 0x00ff) == 0) PSW |= PSW_CY; + if (((value & 0xff) == 0) || ((value & 0xff00) == 0)) PSW |= PSW_CY; TRACE_ALU_RESULT (GR[reg3]); } @@ -358,28 +358,28 @@ rrrrr!0,000010,RRRRR!0:I:::divh if (op0 == 0xffffffff && op1 == 0x80000000) { - result = 0x80000000; - ov = 1; + PSW &= ~PSW_Z; + PSW |= PSW_OV | PSW_S; + State.regs[OP[1]] = 0x80000000; } - else if (op0 != 0) + else if (op0 == 0) { - result = op1 / op0; - ov = 0; + PSW |= PSW_OV; } else { - result = 0x0; - ov = 1; - } - - /* Compute the condition codes. */ - z = (result == 0); - s = (result & 0x80000000); + result = op1 / op0; + ov = 0; + + /* Compute the condition codes. */ + z = (result == 0); + s = (result & 0x80000000); - /* Store the result and condition codes. */ - State.regs[OP[1]] = result; - PSW &= ~(PSW_Z | PSW_S | PSW_OV); - PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0) | (ov ? PSW_OV : 0)); + /* Store the result and condition codes. */ + State.regs[OP[1]] = result; + PSW &= ~(PSW_Z | PSW_S | PSW_OV); + PSW |= ((z ? PSW_Z : 0) | (s ? PSW_S : 0) | (ov ? PSW_OV : 0)); + } trace_output (OP_REG_REG); |