| # fr30 testcase for div0s $Ri |
| # mach(): fr30 |
| |
| .include "testutils.inc" |
| |
| START |
| |
| .text |
| .global div0s |
| div0s: |
| ; Test div0s $Rj,$Ri |
| ; example from the manual - negative dividend |
| mvi_h_gr 0x0fffffff,r2 |
| mvi_h_dr 0x00000000,mdh |
| mvi_h_dr 0xfffffff0,mdl |
| set_dbits 0x0 ; Set opposite of expected |
| set_cc 0x0f ; Condition codes should not change |
| div0s r2 |
| test_cc 1 1 1 1 |
| test_h_gr 0x0fffffff,r2 |
| test_h_dr 0xffffffff,mdh |
| test_h_dr 0xfffffff0,mdl |
| test_dbits 0x3 |
| |
| ; negative divisor |
| mvi_h_gr 0xffffffff,r2 |
| mvi_h_dr 0xffffffff,mdh |
| mvi_h_dr 0x7fffffff,mdl |
| set_dbits 0x1 ; Set opposite of expected |
| set_cc 0x0f ; Condition codes should not change |
| div0s r2 |
| test_cc 1 1 1 1 |
| test_h_gr 0xffffffff,r2 |
| test_h_dr 0x00000000,mdh |
| test_h_dr 0x7fffffff,mdl |
| test_dbits 0x2 |
| |
| ; Both sign bits 0 |
| mvi_h_gr 0x0fffffff,r2 |
| mvi_h_dr 0xffffffff,mdh |
| mvi_h_dr 0x7ffffff0,mdl |
| set_dbits 0x3 ; Set opposite of expected |
| set_cc 0x0f ; Condition codes should not change |
| div0s r2 |
| test_cc 1 1 1 1 |
| test_h_gr 0x0fffffff,r2 |
| test_h_dr 0x00000000,mdh |
| test_h_dr 0x7ffffff0,mdl |
| test_dbits 0x0 |
| |
| ; Both sign bits 1 |
| mvi_h_gr 0xffffffff,r2 |
| mvi_h_dr 0x00000000,mdh |
| mvi_h_dr 0xffffffff,mdl |
| set_dbits 0x2 ; Set opposite of expected |
| set_cc 0x0f ; Condition codes should not change |
| div0s r2 |
| test_cc 1 1 1 1 |
| test_h_gr 0xffffffff,r2 |
| test_h_dr 0xffffffff,mdh |
| test_h_dr 0xffffffff,mdl |
| test_dbits 0x1 |
| |
| pass |
