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16b psw tests

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folkert van heusden 2022-03-13 14:36:34 +01:00
parent 48881f7d5a
commit f49cafd18c
1 changed files with 75 additions and 3 deletions
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78
tester-psw.mac
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@ -38,8 +38,8 @@ clear_flags:
psw_flags_trigger:
; test zero bit
CALL clear_flags
MOV #0,R1
TST R1
MOV #32768.,R1
TSTB R1
BEQ psw_trigger_1_next
; store test number
MOV #1.,R2
@ -48,7 +48,7 @@ psw_flags_trigger:
psw_trigger_1_next:
CALL clear_flags
MOV #128.,R1
TST R1
TSTB R1
BNE psw_trigger_2_next
MOV #2.,R2
JMP psw_trigger_fail
@ -106,6 +106,78 @@ psw_trigger_7_next:
JMP psw_trigger_fail
psw_trigger_8_next:
; 16 bit tests
; test zero bit
CALL clear_flags
MOV #0,R1
TST R1
BEQ psw_trigger_1_next16b
; store test number
MOV #9.,R2
JMP psw_trigger_fail
psw_trigger_1_next16b:
CALL clear_flags
MOV #32768.,R1
TST R1
BNE psw_trigger_2_next16b
MOV #10.,R2
JMP psw_trigger_fail
psw_trigger_2_next16b:
CALL clear_flags
; test overflow bit (overflow)
MOV #32767.,R1
INC R1
BVS psw_trigger_3_next16b
MOV #11.,R2
JMP psw_trigger_fail
; test overflow bit (underflow)
psw_trigger_3_next16b:
CALL clear_flags
MOV #-32768.,R1
DEC R1
BVS psw_trigger_4_next16b
MOV #12.,R2
JMP psw_trigger_fail
psw_trigger_4_next16b:
CALL clear_flags
; test minus bit
MOV #32767.,R1
INC R1
BMI psw_trigger_5_next16b
MOV #13.,R2
JMP psw_trigger_fail
psw_trigger_5_next16b:
CALL clear_flags
MOV #32768.,R1
DEC R1
BPL psw_trigger_6_next16b
MOV #14.,R2
JMP psw_trigger_fail
psw_trigger_6_next16b:
CALL clear_flags
; carry flag test
MOV #32768.,R1
ASL R1
BCS psw_trigger_7_next16b
MOV #15.,R2
JMP psw_trigger_fail
psw_trigger_7_next16b:
CALL clear_flags
MOV #16384.,R1
ASL R1
BCC psw_trigger_8_next16b
MOV #16.,R2
JMP psw_trigger_fail
psw_trigger_8_next16b:
RET
psw_trigger_fail: