Zilog Z80230 - Manual (Page 249)

SCC/ESCC
User Manual
UM010903-0515 Application Notes
242
Program Example – Z180 CPU Macro Instructions (Continued)
bcr1l: equ 2eh ; DMA Byte Count Reg Ch1-low
bcr1h: equ 2fh ; DMA Byte Count Reg Ch1-high
dstat: equ 30h ; DMA Stat Reg
dmode: equ 31h ; DMA Mode Reg
dcntl: equ 32h ; DMA/WAIT Control Reg
;System Control Registers
il: equ 33h ; INT Vector Low Reg
itc: equ 34h ; INT/TRAP Cont Reg
rcr: equ 36h ; Refresh Cont Reg
cbr equ 38h ; MMU Common Base Reg
bbr: equ 39h ; MMU Bank Base Reg
cbar: equ 3ah ; MMU Common/Bank Area Reg
omcr: equ 3eh ; Operation Mode Control Reg
icr: equ 3fh ; I/O Control Reg
?b equ 0
?c equ 1
?d equ 2
?e equ 3
?h equ 4
?l equ 5
?a equ 7
??bc equ 0
??de equ 1
??hl equ 2
??sp equ 3
slp macro
db 11101101B
db 01110110B
endm
mlt macro ?r
db 11101101B
db 01001100B+(??&?r AND 3) SHL 4
endm
in0 macro ?r, ?p
out0 macro ?p, ?r
db 11101101B
db 00000001B+(?&?r AND 7) SHL 3
db ?p
endm
otim macro
db 11101101B