74 lines
2.4 KiB
HTML
74 lines
2.4 KiB
HTML
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<h2>Comments</h2>
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<pre><code>; This is a comment</code></pre>
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<h2>Labels</h2>
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<pre><code>label1: ; a non-local label
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.local: ; this is really label1.local
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..@foo: ; this is a special symbol
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label2: ; another non-local label
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.local: ; this is really label2.local
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</code></pre>
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<h2>Registers</h2>
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<pre><code>st0
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st1
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ax
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rax
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zmm4</code></pre>
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<h2>Strings</h2>
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<pre><code>
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mov eax,'abcd'
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db 'hello' ; string constant
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db 'h','e','l','l','o' ; equivalent character constants
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dd 'ninechars' ; doubleword string constant
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dd 'nine','char','s' ; becomes three doublewords
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db 'ninechars',0,0,0 ; and really looks like this
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db `\u263a` ; UTF-8 smiley face
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db `\xe2\x98\xba` ; UTF-8 smiley face
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db 0E2h, 098h, 0BAh ; UTF-8 smiley face
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</code></pre>
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<h2>Numbers</h2>
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<pre><code>mov ax,200 ; decimal
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mov ax,0200 ; still decimal
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mov ax,0200d ; explicitly decimal
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mov ax,0d200 ; also decimal
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mov ax,0c8h ; hex
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mov ax,$0c8 ; hex again: the 0 is required
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mov ax,0xc8 ; hex yet again
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mov ax,0hc8 ; still hex
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mov ax,310q ; octal
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mov ax,310o ; octal again
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mov ax,0o310 ; octal yet again
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mov ax,0q310 ; octal yet again
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mov ax,11001000b ; binary
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db -0.2 ; "Quarter precision"
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dw -0.5 ; IEEE 754r/SSE5 half precision
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dd 1.2 ; an easy one
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dd 0x1p+2 ; 1.0x2^2 = 4.0
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dq 0x1p+32 ; 1.0x2^32 = 4 294 967 296.0
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dq 1.e10 ; 10 000 000 000.0
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dq 1.e+10 ; synonymous with 1.e10
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dq 1.e-10 ; 0.000 000 000 1
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dt 3.141592653589793238462 ; pi
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do 1.e+4000 ; IEEE 754r quad precision
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</code></pre>
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<h2>Known failures</h2>
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<p>There are certain edge cases where Prism will fail.
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There are always such cases in every regex-based syntax highlighter.
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However, Prism dares to be open and honest about them.
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If a failure is listed here, it doesn’t mean it will never be fixed. This is more of a “known bugs” list, just with a certain type of bug.
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</p>
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<h3>Numbers with underscores</h3>
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<pre><code>mov ax,1100_1000b
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mov ax,1100_1000y
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mov ax,0b1100_1000
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mov ax,0y1100_1000
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dd 1.222_222_222</code></pre>
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