114 lines
1.7 KiB
Text
114 lines
1.7 KiB
Text
.EXTERN ALL
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test_addr_0:
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; address mode 0
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; b1010101001010101
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; 16 bit put/get
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MOV #43605.,R0
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CMP #43605.,R0
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BEQ test_addr_0a_ok
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MOV #1.,R0
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JMP test_addr_fail
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test_addr_0a_ok:
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; 8 bit put / 16 bit get, should sign extend
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MOVB #240.,R0
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CMP #65520.,R0
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BEQ test_addr_0b_ok
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MOV #2.,R0
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JMP test_addr_fail
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test_addr_0b_ok:
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; 8 bit put / 16 bit get, should sign extend
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MOVB #127.,R0
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CMP #127.,R0
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BEQ test_addr_0c_ok
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MOV #3.,R0
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JMP test_addr_fail
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test_addr_0c_ok:
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; address mode 1
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; indirect get 16 bit
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MOV #v1234,R0
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MOV (R0),R1
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CMP #1234.,R1
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BEQ test_addr_1a_ok
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MOV #4.,R0
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JMP test_addr_fail
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test_addr_1a_ok:
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; indirect get 8 bit, sign extended
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MOV #v1234,R0
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MOVB (R0),R1
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CMP #65490.,R1
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BEQ test_addr_1b_ok
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MOV #5.,R0
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JMP test_addr_fail
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test_addr_1b_ok:
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; indirect get 16 bit
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MOV #v1234,R0
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MOVB (R0),R1
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CMP #1234.,R1
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BNE test_addr_1c_ok
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MOV #6.,R0
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JMP test_addr_fail
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test_addr_1c_ok:
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; address mode 2
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; value did not change
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MOV #v1234,R0
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MOV (R0)+,R1
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CMP #1234.,R1
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BEQ test_addr_2a1_ok
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MOV #7.,R0
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JMP test_addr_fail
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;
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test_addr_2a1_ok:
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; address increased 2 bytes
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MOV #v1234after,R2
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CMP R0,R2
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BEQ test_addr_2a2_ok
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MOV #8.,R0
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JMP test_addr_fail
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test_addr_2a2_ok:
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; value did not change
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MOV #v1234,R0
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MOVB (R0)+,R1
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CMPB #210.,R1
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BEQ test_addr_2b1_ok
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MOV #9.,R0
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JMP test_addr_fail
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;
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test_addr_2b1_ok:
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; address increased 2 bytes
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MOV #v1234,R2
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INC R2
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CMP R0,R2
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BEQ test_addr_2b2_ok
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MOV #10.,R0
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JMP test_addr_fail
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test_addr_2b2_ok:
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; TODO
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RET
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test_addr_fail:
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CALL print_binary
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MOV #test_addr_fail_txt,R0
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CALL print_start
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RET
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test_addr_fail_txt:
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.ASCII "addressing handling FAIL\r\n\x00"
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.EVEN
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v1234: DW 1234.
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v1234after: DW 4321.
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test_addr:
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CALL test_addr_0
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RET
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