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#include <v2_18g3.asm>
 
#define	PACTL	REGBASE+0x26
#define	PACNT	REGBASE+0x27 
#define	TMSK2	REGBASE+0x24
#define	TFLG2	REGBASE+0x25
 
 
	.sect .data
msg:	.asciz	"Pulse Accumulator Test Program\n\n"
 
 
	.sect .text
main:
	ldx	#msg		// pointer to output message
	jsr	OUTSTRING	// write program name out
 
	ldx     #BUTTONISR	// interrupt for interrupt button press
	stx     ISR_JUMP15
 
	ldx     #PA_OVRISR	// interrupt for pulse accumulator overflow
	stx     ISR_JUMP4	// called when PACNT goes from 255 to 0 
 
	ldaa    #0xf0		// Turn on pulse accumulator
	staa    PACTL
	ldaa    TMSK2		// Turn on overflow interrupts
	oraa	#0x20
	staa    TMSK2
 
/* Event spin loop */
loop:
	// every time PACNT is 0 (every 256 ticks), we print '.'
	// Gives you an idea of how fast the pulse accumulator is.
	ldaa PACNT
	bne  loop
 
	ldaa #'.'		 			
	jsr  OUTCHAR
	bra  loop
 
/* Interrupt Service Routine called each time the pulse accumlator
overflows or about every 10 ms. */
PA_OVRISR:	
// if you don't reset these flags (see description in HC11 manual), 
// nasty stuff happens, e.g. Ctrl-X reset can get disabled
	ldaa TFLG2
	oraa #0xc0		// clear PAOVF
	staa TFLG2
	rti
 
/* ISR called each time the IRQ pin is pulled low (button pushed). Do
as little as possible in this interrupt; LCD functions called here may
crash. Could use this interrupt to save current value of PACNT as a
"random" number. */
BUTTONISR:
    ldab PACNT
    clra
    jsr  CONSOLEINT	// output value of pulse accumulator count (PACNT)
    rti
 

prog.asm:1: error: label or instruction expected at start of line
prog.asm:3: error: label or instruction expected at start of line
prog.asm:4: error: label or instruction expected at start of line
prog.asm:5: error: label or instruction expected at start of line
prog.asm:6: error: label or instruction expected at start of line
prog.asm:9: error: attempt to define a local label before any non-local labels
prog.asm:9: error: parser: instruction expected
prog.asm:10: error: parser: instruction expected
prog.asm:13: error: parser: instruction expected
prog.asm:15: error: parser: instruction expected
prog.asm:16: error: parser: instruction expected
prog.asm:18: error: symbol `ldx' redefined
prog.asm:18: error: parser: instruction expected
prog.asm:19: error: parser: instruction expected
prog.asm:21: error: symbol `ldx' redefined
prog.asm:21: error: parser: instruction expected
prog.asm:22: error: symbol `stx' redefined
prog.asm:22: error: parser: instruction expected
prog.asm:24: error: parser: instruction expected
prog.asm:25: error: parser: instruction expected
prog.asm:26: error: symbol `ldaa' redefined
prog.asm:26: error: parser: instruction expected
prog.asm:27: error: parser: instruction expected
prog.asm:28: error: symbol `staa' redefined
prog.asm:28: error: parser: instruction expected
prog.asm:30: error: label or instruction expected at start of line
prog.asm:32: error: label or instruction expected at start of line
prog.asm:33: error: label or instruction expected at start of line
prog.asm:34: error: symbol `ldaa' redefined
prog.asm:34: error: parser: instruction expected
prog.asm:37: error: symbol `ldaa' redefined
prog.asm:37: error: parser: instruction expected
prog.asm:38: error: symbol `jsr' redefined
prog.asm:38: error: parser: instruction expected
prog.asm:41: error: label or instruction expected at start of line
prog.asm:42: error: comma, colon or end of line expected
prog.asm:44: error: label or instruction expected at start of line
prog.asm:45: error: label or instruction expected at start of line
prog.asm:46: error: symbol `ldaa' redefined
prog.asm:46: error: parser: instruction expected
prog.asm:47: error: symbol `oraa' redefined
prog.asm:47: error: parser: instruction expected
prog.asm:48: error: symbol `staa' redefined
prog.asm:48: error: parser: instruction expected
prog.asm:51: error: label or instruction expected at start of line
prog.asm:52: error: parser: instruction expected
prog.asm:53: error: parser: instruction expected
prog.asm:54: error: label or instruction expected at start of line
prog.asm:56: error: parser: instruction expected
prog.asm:58: error: symbol `jsr' redefined
prog.asm:58: error: parser: instruction expected
prog.asm:59: error: symbol `rti' redefined

Standard output is empty