83:ROMCalls:4004

Synopsis

Official Name: CP_HL_DE , _cphlde

Call Address: 4004h

Non destructive compare of HL and DE.

Inputs

• hl
• de

Outputs

• carry-flag is set if (DE > HL)
• zero-flag is set if (DE = HL)

Registers Destroyed

• None.

Comments

• Its code is:

 push  hl
 or    a
 sbc   hl,de
 pop   hl
 ret

• It calls the address 010Fh on every known version of the TI-83 ROM.