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SIMTEL20
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SCOMPHD.Z80
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2000-06-30
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512b
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24 lines
;
; SYSLIB Module Name: SCOMPH
; Author: Richard Conn
; SYSLIB Version Number: 3.6
; Module Version Number: 1.1
public comphd
;
; SCOMPHD --
; Compare HL with DE. On return, Zero means HL=DE; Carry means
; HL<DE.
; PSW is affected. HL and DE are not.
;
COMPHD:
LD A,H ; COMPARE HIGH
CP D
RET NZ ; IF NOT ZERO, FLAGS ARE SET
LD A,L ; COMPARE LOW
CP E
RET
END