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51c26d82a5
This makes the point where execution starts more obvious compared to a start_of_test label at the end of the include, and allows putting other functions at the start of the file. This change also modifies the existing tests to build with this change.
82 lines
1.8 KiB
Text
82 lines
1.8 KiB
Text
incdir "tests"
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include "dsp_base.inc"
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; Tests the behavior of SI, SRS, and LRS when CR is changed
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; Register that is writable but with contents that doesn't matter (COEF_A1_0)
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TEST_REG: equ 0xFFA0 ; 0xFF00 (not writable)
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; This is separate because SRS and SI currently require value 0..7f or ff80..ffff,
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; though the actual behavior doesn't match that
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TEST_ADDR: equ 0xFFA0 ; 0x0000
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; Memory addresses
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TEST_MEM: equ 0x00A0 ; 0x0000
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TEST_MEM_2: equ 0x01A0 ; 0x0100
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test_main:
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LRI $AC0.L, #0xf00f
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SR @TEST_REG, $AC0.L
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SR @TEST_MEM, $AC0.L
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SR @TEST_MEM_2, $AC0.L
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CALL send_regs
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; Observed: writes to TEST_REG
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SI @TEST_ADDR, #0xf11f
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CALL send_regs
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LRI $AC0.L, #0xf22f
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; Observed: writes to TEST_REG
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SRS @TEST_ADDR, $AC0.L
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CALL send_regs
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LRI $CR, #0x0000
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; Observed: still writes to TEST_REG
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SI @TEST_ADDR, #0xf33f
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CALL send_regs
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LRI $AC0.L, #0xf44f
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; Observed: writes to TEST_MEM
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SRS @TEST_ADDR, $AC0.L
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CALL send_regs
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LRI $CR, #0x0001
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; Observed: still writes to TEST_REG
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SI @TEST_ADDR, #0xf55f
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CALL send_regs
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LRI $AC0.L, #0xf66f
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; Observed: writes to TEST_MEM_2
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SRS @TEST_ADDR, $AC0.L
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CALL send_regs
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; At this point, TEST_REG should be f55f, TEST_MEM should be f44f,
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; and TEST_MEM_2 should be f66f. Test the behavior of LRS.
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; Changes to prod.l are for display only.
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LRI $CR, #0x00ff
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LRI $prod.l, #0xf55f
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LRS $AC0.L, @TEST_ADDR
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CALL send_regs
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LRI $CR, #0x0000
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LRI $prod.l, #0xf44f
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LRS $AC0.L, @TEST_ADDR
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CALL send_regs
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LRI $CR, #0x0001
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LRI $prod.l, #0xf66f
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LRS $AC0.L, @TEST_ADDR
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CALL send_regs
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; We're done, DO NOT DELETE THIS LINE
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JMP end_of_test
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send_regs:
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; For display purposes only
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LRI $prod.m1, #TEST_REG
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LRI $prod.h, #TEST_MEM
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LRI $prod.m2, #TEST_MEM_2
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; Actual registers
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LR $AC1.L, @TEST_REG
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LR $AC0.M, @TEST_MEM
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LR $AC1.M, @TEST_MEM_2
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CALL send_back
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RET
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