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6f7e7963bc
Fix gitlab issue #5. The parse_float() function has several bugs: 1. For 1- and 2-word floats it will always write all 4 bytes if the value is exactly 0. 2. It incorrectly rounds and normalizes 1- and 2-word floats. To see the issue easily try the following inputs: .flt2 1.0 .flt4 1.0 These will assemble as '040100 000000' and '040200 000000 000000 000000'. They should both begin '040200'. In fact the test file test/test-prec.mac is incorrect in its only floating point value: .word ^f 1.5 ; 040140 should actually assemble as 040300, not 040140 (040140 is actually ^F0.875). I confirmed this on RT-11 running MACRO V05.06. I fixed the problem with the following deltas: [the patch] The most crucial change is the very last one. 0x200000000000 is actually (1 << 45) and because ufrac is normalized it means that it will always downshift ufrac by 1.
59 lines
1.5 KiB
Plaintext
59 lines
1.5 KiB
Plaintext
;;;;;
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; Test operator precedencce
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; or rather the lack thereof
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;
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.word 1 + 2 + 3 ; 6
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.word 1 + 2 * 3 ; 3*3 = 11
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.word 1 & 2 ! 4 ; 0 ! 4 = 4
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.word 1 ! 2 & 4 ; 3 & 4 = 0
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.word 1 ! 2 & 7 ; 3 & 7 = 3
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.word 1+1 ! 2+3 ; 2!2+3 = 2+3 = 5
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;;;;;
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;
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; Test all operators at least once
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;
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.word 3 + 4 ; 000007
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.word 4 - 3 ; 000001
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.word 3 * 4 ; 000014
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.word 12. / 4 ; 000003
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.word 123 & 771 ; 000121
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.word 123121 ! 322 ; 123323
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.word - 377 ; 177401
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.word + 377 ; 000377
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.word ^C 377 ; 177400
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.word ^c 377 ; 177400
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.word ^B 0101010101010101 ; 052525
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.word ^b 1010101010101010 ; 125252
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.word ^d 100 ; 000144
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.word 100. ; 000144
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.word ^x 100 ; 000400 hexadecimal is an extension
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.word ^rRAD ; 070254 up to 3 characters; no leading spaces
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.word ^rA ; 003100 up to 3 characters
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.word ^r A ; 000050 up to 3 characters
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.word ^r A ; 000001 up to 3 characters
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.word ^r AA ; 000051
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.word ^rA A ; 003101
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.word ^rAA ; 003150
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.word ^r^/AAA/ ; bracketed strings are an extension
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.word ^r<RAD> ; bracketed strings are an extension
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.word ^r< AD> ; bracketed strings are an extension
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.word ^r< D> ; bracketed strings are an extension
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.word ^r<R D> ; bracketed strings are an extension
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.word ^r<RA > ; bracketed strings are an extension
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.word ^R50. ; 157614 there is no whitespace in between.
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.word ^f 1.5 ; 040300
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;;;;;
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; Test bracketing
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;
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.word 1 + < 2 * 3 > ; 1 + 6 = 7
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.word 1 + ^! 2 * 3 ! ; 1 + 6 = 7
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.word 1 + ^/ 2 * 3 / ; 1 + 6 = 7
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.word 1 + ^$ 2 * 3 $ ; 1 + 6 = 7
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.word 1 + ^* 2 * 3 * ; Invalid expression
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