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cxstm8 编译器

   1                     ; C Compiler for STM8 (COSMIC Software)
   2                     ; Generator V4.2.8 - 03 Dec 2008
   3                     ; Optimizer V4.2.8 - 03 Dec 2008
2070                     ; 26 char getch(void)
2070                     ; 27 	{
2071                     	switch	.text
2072  808a               f_getch:
2074  808a 88            	push	a
2075       00000001      OFST:	set	1
2078  808b ce0102        	ldw	x,_ptlec
2079  808e               L7631:
2080                     ; 30 	while (ptlec == ptecr)		/* equal pointers => loop */
2082  808e c30100        	cpw	x,_ptecr
2083  8091 27fb          	jreq	L7631
2084                     ; 32 	c = *ptlec++;			/* get the received char */
2086  8093 f6            	ld	a,(x)
2087  8094 5c            	incw	x
2088                     ; 33 	if (ptlec >= &buffer[SIZE])	/* put in in buffer */
2090  8095 a30144        	cpw	x,#_buffer+64
2091  8098 2503          	jrult	L3731
2092                     ; 34 		ptlec = buffer;
2094  809a ae0104        	ldw	x,#_buffer
2095  809d               L3731:
2096  809d cf0102        	ldw	_ptlec,x
2097                     ; 35 	return (c);
2101  80a0 5b01          	addw	sp,#1
2102  80a2 87            	retf	
2135                     ; 40 void outch(char c)
2135                     ; 41 	{
2136                     	switch	.text
2137  80a3               f_outch:
2139  80a3 88            	push	a
2140       00000000      OFST:	set	0
2143  80a4               L3141:
2144                     ; 42 	while (!(USART_SR & TRDE))	/* wait for READY */
2146  80a4 720f4a30fb    	btjf	_USART_SR,#7,L3141
2147                     ; 44 	USART_DR = c;			/* send it */
2149  80a9 7b01          	ld	a,(OFST+1,sp)
2150  80ab c74a31        	ld	_USART_DR,a
2151                     ; 45 	}
2154  80ae 84            	pop	a
2155  80af 87            	retf	
2181                     ; 51 @interrupt void recept(void)
2181                     ; 52 	{
2182                     	switch	.text
2183  80b0               f_recept:
2187                     ; 53 	USART_SR;			/* clear interrupt */
2189  80b0 c64a30        	ld	a,_USART_SR
2190                     ; 54 	*ptecr++ = USART_DR;		/* get the char */
2192  80b3 ce0100        	ldw	x,_ptecr
2193  80b6 c64a31        	ld	a,_USART_DR
2194  80b9 f7            	ld	(x),a
2195  80ba 5c            	incw	x
2196                     ; 55 	if (ptecr >= &buffer[SIZE])	/* put it in buffer */
2198  80bb a30144        	cpw	x,#_buffer+64
2199  80be 2503          	jrult	L7241
2200                     ; 56 		ptecr = buffer;
2202  80c0 ae0104        	ldw	x,#_buffer
2203  80c3               L7241:
2204  80c3 cf0100        	ldw	_ptecr,x
2205                     ; 57 	}
2208  80c6 80            	iret	
2239                     ; 63 void main(void)
2239                     ; 64 	{
2240                     	switch	.text
2241  80c7               f_main:
2245                     ; 65 	ptecr = ptlec = buffer;		/* initialize pointers */
2247  80c7 ae0104        	ldw	x,#_buffer
2248  80ca cf0102        	ldw	_ptlec,x
2249  80cd cf0100        	ldw	_ptecr,x
2250                     ; 66 	USART_BRR1 = 0xc9;		/* parameter for baud rate */
2252  80d0 35c94a32      	mov	_USART_BRR1,#201
2253                     ; 67 	USART_CR1 = 0x00;		/* parameter for word length */
2255  80d4 725f4a34      	clr	_USART_CR1
2256                     ; 68 	USART_CR2 = 0x2c;		/* parameters for interrupt */
2258  80d8 352c4a35      	mov	_USART_CR2,#44
2259                     ; 69 	rim();				/* authorize interrupts */
2262  80dc 9a            	rim	
2264  80dd               L1441:
2265                     ; 71 		outch(getch());		/* get and put a char */
2267  80dd 8d00808a      	callf	f_getch
2269  80e1 8d0080a3      	callf	f_outch
2272  80e5 20f6          	jra	L1441
2316                     	xdef	f_main
2317                     	xdef	f_recept
2318                     	xdef	f_outch
2319                     	xdef	f_getch
2320                     	switch	.bss
2321  0100               _ptecr:
2322  0100 0000          	ds.b	2
2323                     	xdef	_ptecr
2324  0102               _ptlec:
2325  0102 0000          	ds.b	2
2326                     	xdef	_ptlec
2327  0104               _buffer:
2328  0104 000000000000  	ds.b	64
2329                     	xdef	_buffer
2349                     	end