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dolphin/Source/DSPSpy/tests/cond_test.ds

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DSPSpy: Replace less_test with cond_test This new test covers all conditions, and also tests overflow, carry, logical zero, and the behavior of NEG
2021-08-18 02:27:42 +02:00
incdir "tests"
include "dsp_base.inc"
test_main:
CLR $acc0
CLR $acc1
CALL test_cond
; 1. ar0: 9969. ac0.h: 0000. sr: 2224
LRI $ac0.h, #0x0050
CALL test_cond
; 2. ar0: 9969. ac0.h: 0050. sr: 2224. LRI doesn't change sr.
TST $acc0
CALL test_cond
; 3. ar0: 9655. ac0.h: 0050. sr: 2230
LRI $ac1.h, #0x0050
ADD $acc0, $acc1 ; Causes acc0 to overflow, and thus also become negative
CALL test_cond
; 4. ar0: d655. ac0.h: ffa0. sr: 22ba
ADD $acc0, $acc1 ; acc0 is now negative, but not overflowed
CALL test_cond
; 5. ar0: 965a. ac0.h: fff0. sr: 22b8
ADD $acc0, $acc1 ; Triggers carry
CALL test_cond
; 6. ar0: 9695. ac0.h: 0040. sr: 22b1
CLR $acc1
ADD $acc0, $acc1 ; Adding 0 should do nothing
CALL test_cond
; 7. ar0: 9655. ac0.h: 0040. sr: 22b0
SUB $acc0, $acc1 ; Subtracting 0 sets the carry flag
CALL test_cond
; 8. ar0: 9695. ac0.h: 0040. sr: 22b1
LRI $ac1.h, #0x0050
SUB $acc0, $acc1 ; No carry
CALL test_cond
; 9. ar0: 965a. ac0.h: fff0. sr: 22b8
SUB $acc0, $acc1 ; Carry
CALL test_cond
; 10. ar0: 969a. ac0.h: ffa0. sr: 22b9
SUB $acc0, $acc1 ; Carry and overflow
CALL test_cond
; 11. ar0: d69a. ac0.h: 0050. sr: 22b3
SUB $acc0, $acc1 ; Carry
CALL test_cond
; 12. ar0: 99a9. ac0.h: 0000. sr: 22a5
LRI $ac1.h, #0xffb0 ; -0x50
SUB $acc0, $acc1 ; No carry or overflow
CALL test_cond
; 13. ar0: 9655. ac0.h: 0050. sr: 22b0
SUB $acc0, $acc1 ; Overflow, no carry
CALL test_cond
; 14. ar0: d655. ac0.h: ffa0. sr: 22ba
SUB $acc0, $acc1 ; No carry or overflow
CALL test_cond
; 15. ar0: 965a. ac0.h: fff0. sr: 22b8
SUB $acc0, $acc1 ; Carry
CALL test_cond
; 16. ar0: 9695. ac0.h: 0040. sr: 22b1
LRI $ac1.h, #0xff80
SUB $acc0, $acc1 ; Overflow, no carry
CALL test_cond
; 17. ar0: d655. ac0.h: ffc0. sr: 22ba
ADD $acc0, $acc1 ; Overflow and carry
CALL test_cond
; 18. ar0: d69a. ac0.h: 0040. sr: 22b3
LRI $ac1.h, #0xffb0
ADD $acc0, $acc1 ; No overflow or carry
CALL test_cond
; 19. ar0: 965a. ac0.h: fff0. sr: 22b8
ADD $acc0, $acc1 ; Carry
CALL test_cond
; 20. ar0: 969a. ac0.h: ffa0. sr: 22b9
ADD $acc0, $acc1 ; Overflow and carry
CALL test_cond
; 21. ar0: d69a. ac0.h: 0050. sr: 22b3
ADD $acc0, $acc1 ; Carry
CALL test_cond
; 22. ar0: 99a9. ac0.h: 0000. sr: 22a5
CLR $acc1
CMP ; Compare 0 with 0. Results in 0 and carry.
CALL test_cond
; 23. ar0: 99a9. sr: 22a5
; Logic zero tests
LRIS $ac0.m, #0x01
ANDF $ac0.m, #0x0000
CALL test_cond
; 24. ar0: a9a9. sr: 22e5
ANDCF $ac0.m, #0x0000
CALL test_cond
; 25. ar0: a9a9. sr: 22e5
ANDF $ac0.m, #0x0001
CALL test_cond
; 26. ar0: 99a9. sr: 22a5
ANDCF $ac0.m, #0x0001
CALL test_cond
; 27. ar0: a9a9. sr: 22e5
ANDF $ac0.m, #0x0002
CALL test_cond
; 28. ar0: a9a9. sr: 22e5
ANDCF $ac0.m, #0x0002
CALL test_cond
; 29. ar0: 99a9. sr: 22a5
ANDF $ac0.m, #0x0003
CALL test_cond
; 30. ar0: 99a9. sr: 22a5
ANDCF $ac0.m, #0x0003
CALL test_cond
; 31. ar0: 99a9. sr: 22a5
CLR $acc0
NEG $acc0 ; 0 - 0, marked as carry
CALL test_cond
; 32. ar0: 99a9. ac0.h: 0000. sr: 22a5
LRI $ac0.h, #0x0010
NEG $acc0
CALL test_cond
; 33. ar0: 965a. ac0.h: fff0. sr: 22b8
NEG $acc0
CALL test_cond
; 34. ar0: 9655. ac0.h: 0010. sr: 22b0
LRI $ac0.h, #0xff80
NEG $acc0 ; -INT_MIN is INT_MIN. This generates an overflow.
CALL test_cond
; 35. ar0: d655. ac0.h: ff80. sr: 22ba
CMP ; Compare INT_MIN with 0. Carry but no overflow.
CALL test_cond
; 36. ar0: 969a. ac0.h: ff80. sr: 22b9
MOV $acc1, $acc0
CALL test_cond
; 37. ar0: 965a. ac0.h: ff80. sr: 22b8
TST $acc1
CALL test_cond
; 38. ar0: 965a. ac0.h: ff80. sr: 22b8
CLR $acc0
CMP ; Compare 0 with INT_MIN. Overflow but no carry.
CALL test_cond
; 39. ar0: d655. ac0.h: 0000. sr: 22ba
; We're done, DO NOT DELETE THIS LINE
JMP end_of_test
; Test all conditionals, setting bits in $AR0 based on it.
; $AR0 is used because ADDARN does not update flags.
test_cond:
LRI $AR0, #0x0000
LRI $IX0, #0x0001
IFGE
ADDARN $AR0, $IX0
LRI $IX0, #0x0002
IFL
ADDARN $AR0, $IX0
LRI $IX0, #0x0004
IFG
ADDARN $AR0, $IX0
LRI $IX0, #0x0008
IFLE
ADDARN $AR0, $IX0
LRI $IX0, #0x0010
IFNZ
ADDARN $AR0, $IX0
LRI $IX0, #0x0020
IFZ
ADDARN $AR0, $IX0
LRI $IX0, #0x0040
IFNC
ADDARN $AR0, $IX0
LRI $IX0, #0x0080
IFC
ADDARN $AR0, $IX0
LRI $IX0, #0x0100
DSP: Fix assembling x8/x9/xA/xB conditions The assembler upper-cases the mnemonic internally, so it never would match the lower-case x.
2022-05-24 01:04:57 +02:00
IFx8
DSPSpy: Replace less_test with cond_test This new test covers all conditions, and also tests overflow, carry, logical zero, and the behavior of NEG
2021-08-18 02:27:42 +02:00
ADDARN $AR0, $IX0
LRI $IX0, #0x0200
DSP: Fix assembling x8/x9/xA/xB conditions The assembler upper-cases the mnemonic internally, so it never would match the lower-case x.
2022-05-24 01:04:57 +02:00
IFx9
DSPSpy: Replace less_test with cond_test This new test covers all conditions, and also tests overflow, carry, logical zero, and the behavior of NEG
2021-08-18 02:27:42 +02:00
ADDARN $AR0, $IX0
LRI $IX0, #0x0400
DSP: Fix assembling x8/x9/xA/xB conditions The assembler upper-cases the mnemonic internally, so it never would match the lower-case x.
2022-05-24 01:04:57 +02:00
IFxA
DSPSpy: Replace less_test with cond_test This new test covers all conditions, and also tests overflow, carry, logical zero, and the behavior of NEG
2021-08-18 02:27:42 +02:00
ADDARN $AR0, $IX0
LRI $IX0, #0x0800
DSP: Fix assembling x8/x9/xA/xB conditions The assembler upper-cases the mnemonic internally, so it never would match the lower-case x.
2022-05-24 01:04:57 +02:00
IFxB
DSPSpy: Replace less_test with cond_test This new test covers all conditions, and also tests overflow, carry, logical zero, and the behavior of NEG
2021-08-18 02:27:42 +02:00
ADDARN $AR0, $IX0
LRI $IX0, #0x1000
IFLNZ
ADDARN $AR0, $IX0
LRI $IX0, #0x2000
IFLZ
ADDARN $AR0, $IX0
LRI $IX0, #0x4000
IFO
ADDARN $AR0, $IX0
LRI $IX0, #0x8000
IF ; Always true
ADDARN $AR0, $IX0
CALL send_back
RET
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