/*
These are just some useful macros that control the TS-1325's
LEDs and push-button switch. Useful for debugging.
NOTE: This *must* be 16-bit compatible code to work in start.s
Tony Ambardar
*/
.macro LED_OFF
movw $P1LTC, dx
inb dx, al
orb $0b01000000, al
andb $0b11011111, al
outb al, dx
.endm
.macro LED_GREEN
movw $P1LTC, dx
inb dx, al
orb $0b01100000, al
outb al, dx
.endm
.macro LED_YELLOW
movw $P1LTC, dx
inb dx, al
orb $0b00100000, al
andb $0b10111111, al
outb al, dx
.endm
.macro LED_RED
movw $P1LTC, dx
inb dx, al
andb $0b10011111, al
outb al, dx
.endm
.macro WAIT_BUTTON # Wait till the button is pressed for a bit.
movw $P1PIN, dx # ~25-30 cycles per loop, 25MHz -> 1 sec.
movl $300000,ecx # "Timer" count determines how long.
0: inb dx, al
andb $0b00000001,al
jnz 0b # Button pressed?
decl ecx
jnz 0b # CX count expired?
.endm
