Completes coding of the PWM module

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4200 7fd9a85b-ad96-42d3-883c-3090e2eb8679
2026-10-26 05:03:35 +08:00 · 2011-12-19 19:24:09 +00:00
commit add995c32e
4394 changed files with 1077774 additions and 0 deletions
@@ -0,0 +1,44 @@
+AS		= /usr/local/bin/as-z80
+ASFLAGS		= -xlosp
+
+CPP		= /usr/local/bin/sdcpp
+CPPFLAGS	= -D__ASSEMBLY__
+
+CC		= /usr/local/bin/sdcc
+CFLAGS		= -mz80 --stack-auto --int-long-reent --float-reent
+
+LD		= /usr/local/bin/link-z80
+LDFLAGS		= 
+
+ASMEXT		= .asm
+OBJEXT		= .rel
+LIBEXT		= .lib
+EXEEXT		= .hex
+
+ASRCS		= example.asm
+AOBJS		= $(ASRCS:$(ASMEXT)=$(OBJEXT))
+
+CSRCS		=
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(SSRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+BIN		= example$(EXEEXT)
+
+all: $(BIN)
+default: $(BIN)
+
+$(AOBJS): $(ASRCS)
+	$(AS) $(ASFLAGS) $@ $<
+
+$(COBJS) $(TESTOBJS): %$(OBJEXT): %.c
+	$(CC) -c $(CFLAGS) $< -o $@
+
+$(BIN): $(OBJS)
+	$(CC) $(LDFLAGS) $< -o $@
+	
+clean:
+	@rm -f $(BIN) *.o *.rel *.lst *.sym *.adb *.ihx *.map *.mem *.rst *.lnk *~
+
+distclean: clean
@@ -0,0 +1,84 @@
+;************************************************************************
+; example.s
+;************************************************************************
+
+	.title	z80sim Test
+	.module	example
+
+;************************************************************************
+; Constants
+;************************************************************************
+
+	STACKBASE		==    0xFFFF
+
+;************************************************************************
+; Data
+;************************************************************************
+
+	.area	DATA	(ABS,OVR)
+	.org    0x8000
+hello:
+	.ascii "Hello, World!\n\0"
+
+;************************************************************************
+; Reset entry point
+;************************************************************************
+
+	.area	TEXT	(ABS,OVR)
+	.org	0x0000
+	di				; Disable interrupts
+	ld	SP, #STACKBASE		; Set stack pointer
+	im	1			; Set interrupt mode 1
+	jp	start			; jump to start of program
+
+;************************************************************************
+; Interrupt handler
+;************************************************************************
+
+	.org   0x0038			; Int mode 1
+	reti				; return from interrupt
+
+;************************************************************************
+; NMI interrupt handler
+;************************************************************************
+
+	.org   0x0066
+	retn
+
+;************************************************************************
+; Start of program
+;************************************************************************
+
+	.org   0x0100
+start:
+	;ei				; Enable interrrupts
+	ld	hl, #hello		; Say hello
+	call   print 
+
+forever:				; Then stop execution
+	jp	forever
+
+;******************************************************************
+;        print    *
+;        Funktion....: Sen tekst and data with serielport *
+;        Input.......: hl points at text start adr   *
+;        Output......: Text to serielport    *
+;        uses........: a,hl*
+;        call........: TX_BUSY         tst 28-4-1994 *
+;******************************************************************
+
+print:
+	push   af
+loop:
+	ld	a, (hl)			; Get character to print
+	cp	#0			; Null terminates the string
+	jp	z, done
+
+	out	(0xbe), a		; Send character
+	inc    hl			; Increment to next character
+	jp	loop			; Loop til done
+done:
+	pop    af
+	ret
+
+