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tenbahttenbaht
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simple manual improvements in the compiled code
1 parent b0d5f52 commit 2193fec

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‎test/pinmode/Makefile‎

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BASENAME=$(shell basename $$(pwd))
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EXECUTABLE=$(BASENAME).ihx
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#SDCCBASE=/usr/local
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SDCCBASE=/opt/sdcc
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BINDIR=$(SDCCBASE)/bin
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CC=$(BINDIR)/sdcc
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LD=$(BINDIR)/sdld
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LIBBASE=../../STM8S_StdPeriph_Driver
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SDUINO=../../sduino
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CFLAGS= --debug -mstm8 -DF_CPU=16000000L -DSTM8S103 \
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-I. -I$(SDUINO) -I$(LIBBASE)/inc -I/usr/share/sdcc/include/
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# -DSUPPORT_ALTERNATE_MAPPINGS
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LDFLAGS=-L$(LIBBASE)/src -L/opt/sdcc/share/sdcc/lib/stm8 -lstm8s103
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OBJECTS=$(BASENAME).rel
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SDOBJECTS=main.rel wiring.rel wiring_digital.rel SPI.rel \
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HardwareSerial.rel Print.rel
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.PHONY: all clean flash
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#all: $(OBJECTS)
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$(EXECUTABLE): $(OBJECTS) $(SDOBJECTS)
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#test.rel wiring_digital.rel
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$(CC) $(CFLAGS) $(LDFLAGS) $^ -o $@
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$(OBJECTS) : %.rel : %.c
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$(CC) -c $(CFLAGS) $^ -o $@
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$(SDOBJECTS) : %.rel : $(SDUINO)/%.c
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$(CC) -c $(CFLAGS) $^ -o $@
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flash: $(EXECUTABLE)
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stm8flash -cstlinkv2 -pstm8s103?3 -w $^
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readopt:
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stm8flash -c stlinkv2 -p stm8s103?3 -s opt -r opt.bin
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clean:
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rm -f *.lib *.rst *.rel *.lst *.ihx *.sym *.asm *.lk *.map \
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*.cdb *.adb *~ *.bak
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rm -f $(EXECUTABLE)

‎test/pinmode/README.md‎

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0080A0 47 _pinMode1:
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0081B4 268 _setup:
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0081BE 282 _loop:

‎test/pinmode/pinmode.c‎

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/*
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* test spi functions
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*/
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#include "Arduino.h"
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#include "wiring_private.h"
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void pinMode1(uint8_t pin, uint8_t mode)
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{
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uint8_t bit = digitalPinToBitMask(pin);
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uint8_t port = digitalPinToPort(pin);
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volatile GPIO_TypeDef *gpio;
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if (port == NOT_A_PIN) return;
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gpio = (GPIO_TypeDef *) portOutputRegister(port);
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if (mode == INPUT) {
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BEGIN_CRITICAL
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gpio->CR2 &= ~bit; // first: deactivate interrupt
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gpio->CR1 &= ~bit; // release top side
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gpio->DDR &= ~bit; // now set direction
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END_CRITICAL
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} else if (mode == INPUT_PULLUP) {
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BEGIN_CRITICAL
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gpio->CR2 &= ~bit; // first: deactivate interrupt
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gpio->DDR &= ~bit; // set direction before
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gpio->CR1 |= bit; // activating the pull up
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END_CRITICAL
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} else if (mode == OUTPUT_FAST) {// output push-pull, fast
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BEGIN_CRITICAL
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gpio->CR1 |= bit;
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gpio->DDR |= bit; // direction before setting CR2 to
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gpio->CR2 |= bit; // avoid accidental interrupt
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END_CRITICAL
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} else if (mode == OUTPUT_OD_FAST) { // output open drain, fast
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BEGIN_CRITICAL
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gpio->CR1 &= ~bit;
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gpio->DDR |= bit; // direction before setting CR2 to
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gpio->CR2 |= bit; // avoid accidental interrupt
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END_CRITICAL
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} else if (mode == OUTPUT_OD) { // output open drain, slow
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BEGIN_CRITICAL
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gpio->CR1 &= ~bit;
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gpio->CR2 &= ~bit;
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gpio->DDR |= bit;
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END_CRITICAL
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} else { // output push-pull, slow
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BEGIN_CRITICAL
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gpio->CR1 |= bit;
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gpio->CR2 &= ~bit;
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gpio->DDR |= bit;
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END_CRITICAL
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}
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}
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#if 0
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if (mode == INPUT) {
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gpio->CR2 &= ~bit; // first: deactivate interrupt
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gpio->CR1 &= ~bit; // release top side
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gpio->DDR &= ~bit; // now set direction
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} else if (mode == INPUT_PULLUP) {
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gpio->CR2 &= ~bit; // first: deactivate interrupt
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gpio->DDR &= ~bit; // set direction before
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gpio->CR1 |= bit; // activating the pull up
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} else if (mode == OUTPUT_FAST) {// output push-pull, fast
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gpio->CR1 |= bit;
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gpio->DDR |= bit; // direction before setting CR2 to
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gpio->CR2 |= bit; // avoid accidental interrupt
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} else if (mode == OUTPUT_OD_FAST) { // output open drain, fast
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gpio->CR1 &= ~bit;
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gpio->DDR |= bit; // direction before setting CR2 to
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gpio->CR2 |= bit; // avoid accidental interrupt
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} else if (mode == OUTPUT_OD) { // output open drain, slow
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gpio->CR1 &= ~bit;
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gpio->CR2 &= ~bit;
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gpio->DDR |= bit;
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} else { // output push-pull, slow
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gpio->CR1 |= bit;
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gpio->CR2 &= ~bit;
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gpio->DDR |= bit;
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}
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#endif
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//
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void pinMode_asm(uint8_t pin, uint8_t mode)
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{
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__asm
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sub sp, #16
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; pinmode.c: 10: uint8_t bit = digitalPinToBitMask(pin);
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ldw x, #_digital_pin_to_bit_mask_PGM+0
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ld a, xl
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add a, (0x13, sp)
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rlwa x
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adc a, #0x00
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ld xh, a
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ld a, (x)
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ld (0x04, sp), a
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; pinmode.c: 11: uint8_t port = digitalPinToPort(pin);
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ldw x, #_digital_pin_to_port_PGM+0
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ld a, xl
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add a, (0x13, sp)
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rlwa x
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adc a, #0x00
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ld xh, a
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ld a, (x)
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ld (0x03, sp), a
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ld a, (0x03, sp)
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ld (0x07, sp), a
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; pinmode.c: 14: if (port == NOT_A_PIN) return;
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tnz (0x03, sp)
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jrne 00002$
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jp 00018$
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00002$:
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; pinmode.c: 16: gpio = (GPIO_TypeDef *) portOutputRegister(port);
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ldw x, #_port_to_output_PGM+0
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ldw (0x0e, sp), x
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ld a, (0x07, sp)
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ld xl, a
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ld a, #0x02
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mul x, a
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addw x, (0x0e, sp)
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ldw x, (x) ; jetzt ist gpio in x
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ld a, (0x10, sp) ; bit
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ld yl,a ; yl = bit
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cpl a
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ld yh,a ; yh = ~bit
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ld a, (0x14, sp) ; a=mode, flags are set
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; gpio->DDR: (2,x) (war an c,SP)
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; gpio->CR1: (3,x) (war an 8,SP)
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; gpio->CR2: (4,x) (war an 5,SP)
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sim
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; pinmode.c: 18: if (mode == INPUT) {
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jrne 00016$
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; pinmode.c: 20: gpio->CR2 &= ~bit; // first: deactivate interrupt
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ld a,yh
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and a,(4,x)
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ld (4,x),a
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; pinmode.c: 21: gpio->CR1 &= ~bit; // release top side
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ld a,yh
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and a,(3,x)
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ld (3,x),a
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; pinmode.c: 22: gpio->DDR &= ~bit; // now set direction
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ld a,yh
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and a,(2,x)
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jp 00022$
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00016$:
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; pinmode.c: 24: } else if (mode == INPUT_PULLUP) {
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cp a, #0x02
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jrne 00013$
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; pinmode.c: 26: gpio->CR2 &= ~bit; // first: deactivate interrupt
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ld a,yh
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and a,(4,x)
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ld (4,x),a
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; pinmode.c: 27: gpio->DDR &= ~bit; // set direction before
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ld a,yh
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and a,(2,x)
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ld (2,x),a
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; pinmode.c: 28: gpio->CR1 |= bit; // activating the pull up
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ld a,yl
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or a,(3,x)
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ld (3,x),a
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jp 00018$
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00013$:
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; pinmode.c: 30: } else if (mode == OUTPUT_FAST) {// output push-pull, fast
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cp a, #0x05
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jrne 00010$
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; pinmode.c: 32: gpio->CR1 |= bit;
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ld a,yl
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or a,(3,x)
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jra 00020$
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; pinmode.c: 39: gpio->DDR |= bit; // direction before setting CR2 to
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; pinmode.c: 40: gpio->CR2 |= bit; // avoid accidental interrupt
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00010$:
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; pinmode.c: 36: } else if (mode == OUTPUT_OD_FAST) { // output open drain, fast
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cp a, #0x07
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jrne 00007$
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; pinmode.c: 38: gpio->CR1 &= ~bit;
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ld a,yh
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and a,(3,x)
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00020$: ld (3,x),a
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; pinmode.c: 39: gpio->DDR |= bit; // direction before setting CR2 to
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ld a,yl
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or a,(2,x)
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ld (2,x),a
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; pinmode.c: 40: gpio->CR2 |= bit; // avoid accidental interrupt
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ld a,yl
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or a,(4,x)
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ld (4,x),a
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jra 00018$
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00007$:
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; pinmode.c: 42: } else if (mode == OUTPUT_OD) { // output open drain, slow
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cp a, #0x03
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jrne 00004$
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; pinmode.c: 44: gpio->CR1 &= ~bit;
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ld a,yh
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and a,(3,x)
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jra 00021$
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; pinmode.c: 45: gpio->CR2 &= ~bit;
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; pinmode.c: 46: gpio->DDR |= bit;
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00004$:
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; pinmode.c: 50: gpio->CR1 |= bit;
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ld a,yl
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or a,(3,x)
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00021$: ld (3,x),a
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; pinmode.c: 51: gpio->CR2 &= ~bit;
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ld a,yh
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and a,(4,x)
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ld (4,x),a
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; pinmode.c: 52: gpio->DDR |= bit;
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ld a,yl
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or a,(2,x)
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00022$: ld (2,x),a
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00018$:
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rim
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addw sp, #16
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__endasm;
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}
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//
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void setup(void)
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{
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pinMode1(1,OUTPUT);
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}
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void loop (void)
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{
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}

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