Z89C6700ZEM Datasheet, PDF (4/6 Pages) Zilog, Inc. – Z8 GUI Emulator Software

LIMITATIONS (Continued)
Z89C6700ZEM
CP95TAD0504
0153
000C
Correct Interrupt
Service Routine
0178
78
0103
000C
Incorrect Interrupt
Service Routine
0003
53
0002
01
IRQ1
Vector
0003
53
0002
01
0000
0000
Z8 Program Memory
ROM Emulation
Z8 Program Memory
ROMless Emulation
Note: The Incorrect Vectored Interrupt emulation only applies to the emulator.
The Z89168/C68 device does not exhibit this problem.
IRQ1
Vector
Software Work Around for ROMless Emulation
;***Emulator Vector Fixes***
;***Locate in ROM @ %0000***
.ORG %0000
.WORD IRQ0_JP
.WORD IRQ1_JP
.WORD IRQ2_JP
.WORD IRQ3_JP
.WORD IRQ4_JP
.WORD IRQ5_JP
;Locate in ROM @ %7F00***
.EXTERN
.EXTERN
.EXTERN
.EXTERN
.EXTERN
.EXTERN
IRQ0_ISR
IRQ1_ISR
IRQ2_ISR
IRQ3_ISR
IRQ4_ISR
IRQ5_ISR
.ORG
%7F00
.WORD IRQ0_JP
.WORD IRQ1_JP
.WORD IRQ2_JP
.WORD IRQ3_JP
.WORD IRQ4_JP
.WORD IRQ5_JP
4