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Line 1... |
;; *******************************************************************
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;; *******************************************************************
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;; $Id: test.asm,v 1.1 2004-03-28 21:06:14 arniml Exp $
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;; $Id: test.asm,v 1.2 2004-04-07 22:09:35 arniml Exp $
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;;
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;;
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;; Test DA A.
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;; Test DA A.
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;; *******************************************************************
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;; *******************************************************************
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|
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INCLUDE "cpu.inc"
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INCLUDE "cpu.inc"
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| Line 14... |
Line 14... |
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;; testcase from "Single Component MCS-48 System"
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;; testcase from "Single Component MCS-48 System"
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mov a, #09BH
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mov a, #09BH
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da a
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da a
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jnc fail
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jnc fail
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mov r0, a
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mov a, psw
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jb6 fail
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mov a, r0
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cpl a
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cpl a
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add a, #001H
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add a, #001H
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cpl a
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cpl a
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jnz fail
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jnz fail
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mov a, psw
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jb6 fail
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;; a value that should not be changed
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;; a value that should not be changed
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;; upper nibble: no overflow
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;; upper nibble: no overflow
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;; lower nibble: no overflow
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;; lower nibble: no overflow
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mov a, #037H
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mov a, #037H
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add a, r7 ; clear C and AC
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add a, r7 ; clear C and AC
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da a
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da a
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jc fail
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jc fail
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mov r0, a
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mov a, psw
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jb6 fail
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mov a, r0
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cpl a
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cpl a
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add a, #037H
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add a, #037H
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cpl a
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cpl a
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jnz fail
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jnz fail
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jb6 fail
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;; upper nibble: no overflow
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;; upper nibble: no overflow
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;; lower nibble: overflow
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;; lower nibble: overflow
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mov a, #04AH
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mov a, #04AH
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add a, r7 ; clear C and AC
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add a, r7 ; clear C and AC
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da a
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da a
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jc fail
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jc fail
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mov r0, a
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mov a, psw
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jb6 fail
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mov a, r0
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cpl a
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cpl a
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add a, #050H
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add a, #050H
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cpl a
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cpl a
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jnz fail
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jnz fail
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jb6 fail
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;; upper nibble: overflow
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;; upper nibble: overflow
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;; lower nibble: no overflow
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;; lower nibble: no overflow
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mov a, #0C1H
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mov a, #0C1H
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add a, r7 ; clear C and AC
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add a, r7 ; clear C and AC
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da a
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da a
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jnc fail
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jnc fail
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mov r0, a
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mov a, psw
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jb6 fail
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mov a, r0
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cpl a
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cpl a
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add a, #021H
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add a, #021H
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cpl a
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cpl a
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jnz fail
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jnz fail
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jb6 fail
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;; upper nibble: overflow
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;; upper nibble: overflow
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;; lower nibble: overflow
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;; lower nibble: overflow
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mov a, #0DEH
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mov a, #0DEH
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add a, r7 ; clear C and AC
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add a, r7 ; clear C and AC
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da a
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da a
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jnc fail
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jnc fail
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mov r0, a
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mov a, psw
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jb6 fail
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mov a, r0
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cpl a
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cpl a
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add a, #044H
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add a, #044H
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cpl a
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cpl a
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jnz fail
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jnz fail
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jb6 fail
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;; ******************************************************************
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;; ******************************************************************
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;; Next round with Auxiliary Carry
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;; Next round with Auxiliary Carry
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;; ******************************************************************
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;; ******************************************************************
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