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51 <h1> words/d-minus.asm </h1>
52  
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59 <pre>
60 ; ( d1 d2 -- d3 ) Arithmetics
61 ; R( -- )
62 ; subtract double cell values
63 VE_DMINUS:
64 .db $02, &quot;d-&quot;,0
65 .dw VE_HEAD
66 .set VE_HEAD = VE_DMINUS
67 XT_DMINUS:
68 .dw PFA_DMINUS
69 PFA_DMINUS:
70 ld temp4, Y+
71 ld temp5, Y+
72 ld temp6, Y+
73 ld temp7, Y+
74  
75 ld temp2, Y+
76 ld temp3, Y+
77  
78 sub tosl, temp4
79 sbc tosh, temp5
80 sbc temp2, temp6
81 sbc temp3, temp7
82  
83 st -Y, temp3
84 st -Y, temp2
85 jmp DO_NEXT
86 </pre>
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