> For the complete documentation index, see [llms.txt](https://docs.hex-rays.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hex-rays.com/9.0sp1/user-guide/disassembler/disassembly-gallery/st-7.md).

# ST 7

Assembler code

```
seg000:1235 ; ---------------------------------------------------------------------------
seg000:1235                 sub     a, ($77,x)
seg000:1237                 cp      a, ($77,y)
seg000:123A                 sbc     a, ($77,y)
seg000:123D                 cp      y, ($77,y)
seg000:1240                 and     a, ($77,y)
seg000:1243                 bcp     a, ($77,y)
seg000:1246                 ld      a, ($77,y)
seg000:1249                 ld      ($77,y), a
seg000:124C                 xor     a, ($77,y)
seg000:124F                 adc     a, ($77,y)
seg000:1252                 or      a, ($77,y)
seg000:1255                 add     a, ($77,y)
seg000:1258                 jp      ($77,y)
seg000:125B ; ---------------------------------------------------------------------------
seg000:125B                 call    ($77,y)
seg000:125E                 ld      y, ($77,y)
seg000:1261                 ld      ($77,y), y
seg000:1264                 sub     a, (y)
seg000:1266                 cp      a, (y)
seg000:1268                 sbc     a, (y)
seg000:126A                 cp      y, (y)
seg000:126C                 and     a, (y)
seg000:126E                 bcp     a, (y)
seg000:1270                 ld      a, (y)
seg000:1272                 ld      (y), a
seg000:1274                 xor     a, (y)
seg000:1276                 adc     a, (y)
seg000:1278                 or      a, (y)
seg000:127A                 add     a, (y)
seg000:127C                 jp      (y)
seg000:127E ; ---------------------------------------------------------------------------
seg000:127E                 call    (y)
seg000:1280                 ld      y, (y)
seg000:1282                 ld      (y), y

```


---

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