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@ @ Mecrisp-Stellaris - A native code Forth implementation for ARM-Cortex M microcontrollers @ Copyright (C) 2013 Matthias Koch @ @ This program is free software: you can redistribute it and/or modify @ it under the terms of the GNU General Public License as published by @ the Free Software Foundation, either version 3 of the License, or @ (at your option) any later version. @ @ This program is distributed in the hope that it will be useful, @ but WITHOUT ANY WARRANTY; without even the implied warranty of @ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the @ GNU General Public License for more details. @ @ You should have received a copy of the GNU General Public License @ along with this program. If not, see <http://www.gnu.org/licenses/>. @ ;------------------------------------------------------------------------------ This is the stable release of Mecrisp-Stellaris, a port of Mecrisp to the ARM Cortex M architecture. It runs out of the box on: - TI Stellaris/Tiva Launchpad with LM4F120H5QR / TM4C123GH6PM - TI Tiva Connected Launchpad with TM4C1294NCPDT - TI MSP432 Launchpad with MSP432P401R - STM L053 Discovery with STM32L053C8T6 - STM Nucleo L152RE with STM32L152RE - STM Nucleo 401RE with STM32F401RE - STM Nucleo 411RE with STM32F411RET6 - STM F0 Discovery with STM32F051R8 - STM VL Discovery with STM32F100RB - Shenzhen LC Technology board with STM32F103C8T6 - STM F3 Discovery with STM32F303VCT6 - STM F4 Discovery with STM32F407VGT6 - STM F429 Discovery with STM32F429ZIT6 - Freescale Freedom FRDM-KL25Z with KL25Z128VLK4 - Freescale Freedom FRDM-KL46Z with KL46Z256VLL4 - Freescale Freedom FRDM-K64F with MK64FN1M0VLL12 - Infineon XMC2GO with XMC1100Q024F0064 - EFM32 Giant Gecko with EFM32GG990F1024 - EFM32 Happy Gecko with EFM32HG322F64 - Analog Devices EV-COG-AD4050LZ with ADuCM4050BCPZ - Breadboard friendly, DIP packaged LPC1114FN28 - LPC1114FBD48 - LPC1115FBD48 - Very small TSSOP20 packaged STM32F030F4 Experimental: - Cypress CY8CKIT-049 4200 with CY8C4245AXI Contributions: - Teensy 3.1 with MK20DX256VLH7 - Chinese QF-LM4F232 with LM4F232H5QC - nRFgo Starter Kit & Microbit with nRF51822 - STM L152 Discovery with STM32L152RBT6 - STM Nucleo L073RZ with STM32L073RZ - STM Nucleo F207ZG with STM32F207ZG - STM Nucleo F303K8 with STM32F303K8 - STM Nucleo F303RE with STM32F303RE - Espruino Pico with STM32F401CD - STM Nucleo L432KC with STM32L432KC - STM L476 Discovery with STM32L476VG - STM F746 Discovery with STM32F746NG - Atmel SAME70 X-plained with ATSAME70Q21 - STM32F042F6 - STM32F030K6 - Nutiny-SDK-NUC123 with NUC123 http://mecrisp.sourceforge.net/ m-atthias@users.sf.net ;------------------------------------------------------------------------------ Mecrisp finally got a younger sister and mastered the jump to the ARM Cortex M instruction set. They share most of the design ideas, so Mecrisp-Stellaris can compile directly into Flash, generates native code with constant folding and inlining of short words. Communication is via serial 115200 baud 8N1 over - UART0 in LM4F120 (connected to USB-serial bridge on Stellaris Launchpad) - UART0 in TM4C1294 (connected to USB-serial bridge on Tiva Connected Launchpad) - USCI0 in MSP432P401R (TX on P1.3, RX on P1.2, connected to USB-serial bridge) - UART in LPC1114FN28 (TX on P1.7, RX on P1.6) - UART in LPC1114FBD48 (TX on P1.7, RX on P1.6) - UART in LPC1115FBD48 (TX on P1.7, RX on P1.6) - USART1 in STM32F051 (TX on PA9, RX on PA10) - USART1 in STM32F030F4 (TX on PA9, RX on PA10) - USART1 in STM32F030K6 (TX on PA9, RX on PA10) - USART1 in STM32F100 (TX on PA9, RX on PA10) - USART1 in STM32F103 (TX on PA9, RX on PA10) - USART1 in STM32F303 (TX on PA9, RX on PA10) - USART1 in STM32F429 (TX on PA9, RX on PA10) - USART1 in STM32L053C8 (TX on PA9, RX on PA10) - USART2 in STM32F401 (TX on PA2, RX on PA3 connected to USB-serial bridge on Nucleo board) - USART2 in STM32F407 (TX on PA2, RX on PA3) - USART2 in STM32F411 (TX on PA2, RX on PA3 connected to USB-serial bridge on Nucleo board) - USART2 in STM32L152 (TX on PA2, RX on PA3 connected to USB-serial bridge on Nucleo board) - USART2 in STM32L476 (TX on PD5, RX on PD6 connected to USB-serial bridge on Discovery board) - UART0 in KL25Z128 (connected to USB-serial bridge on Freedom board) - UART0 in KL46Z256 (connected to USB-serial bridge on Freedom board) - UART5 in LM4F232 - UART0 in MK20DX256 (RX1/TX1 on Teensy 3.1. Physical pins #2/#3 (these are also Digital IO 0/1 lines) Digital IO pins 18/19 are setup for CTS/RTS respectively - UART0 in NUC123 (64pin and 48pin only) ;------------------------------------------------------------------------------ Hardware and configuration for LM4F120 and TM4C123: ;------------------------------------------------------------------------------ Connect your cable to the Debug-USB-Port, set "PWR SELECT" switch to DEBUG and close VDD jumper. Flashing is possible with lm4flash: https://github.com/utzig/lm4tools On startup, this runs with internal PIOSC at 16 MHz, which is specified +-3% over whole temperature range. ;------------------------------------------------------------------------------ Hardware and configuration for TM4C1294: ;------------------------------------------------------------------------------ Connect your cable to the Debug-USB-Port, set "POWER SELECT" jumpers (JP1) to "ICDI", close both "MCU 3V3" (JP2) and "+3v3" (JP3) jumpers and set communication jumper blocks (JP4 and JP5) both to UART mode. Flashing is possible with lm4flash: https://github.com/utzig/lm4tools On startup, this runs with internal PIOSC at 16 MHz, which is specified +-3% over whole temperature range. ;------------------------------------------------------------------------------ Hardware and configuration for MSP432P401R: ;------------------------------------------------------------------------------ Connect your cable to the USB-Port, set "JTAG switch" to XDS position, close 5V, 3V3, RXD, TXD jumpers. Flashing is possible with DSLite, which is part of Energia 15: DSLite -c MSP432P401R.ccxml -f mecrisp-stellaris-msp432p401r.bin -l 0 On startup, this runs with DCO on 12 MHz. ;------------------------------------------------------------------------------ Hardware and configuration for LPC1114FN28 on breadboard: ;------------------------------------------------------------------------------ Connect 3.3 V power across + Vdd (Pin 21) and Vdda (Pin 7) - Vss (Pin 22) and Vssa (Pin 8) Connect TTL serial to TXD on P1.7 (Pin 16) and RXD on P1.6 (Pin 15) Connect two push buttons between /Reset (Pin 23) and GND Bootloader enable on P0.1 (Pin 24) and GND The chip enters serial bootloader in ROM if Reset button is released while the bootloader button is hold down. Flashing is possible with LPC21ISP: http://sourceforge.net/projects/lpc21isp/ lpc21isp -wipe mecrisp-stellaris-lpc1114fn28.hex /dev/ttyUSB0 9600 12000 On startup, this runs with internal RC oscillator at 12 MHz which is specified +-1% over whole temperature range. ;------------------------------------------------------------------------------ Hardware and configuration for STM32L053C8: ;------------------------------------------------------------------------------ Connect USB cable to ST-Link USB port. Terminal is included into the debug section and can be used if you close solder bridges SB2 and SB3. Flashing is possible with st-flash: https://github.com/texane/stlink Flash memory is mirrored in hardware starting from address 0. Mecrisp uses the low address range to generate short opcodes for calling core words, but for flashing the binary, you have to use the "true address" $08000000. st-flash erase st-flash write mecrisp-stellaris-stm32l053c8.bin 0x08000000 On startup, this runs with internal 16 MHz HSI clock. ;------------------------------------------------------------------------------ Hardware and configuration for STM32L152: ;------------------------------------------------------------------------------ Connect USB cable to ST-Link USB port. Terminal is included into the debug section on Nucleo boards. Flashing is possible with st-flash: https://github.com/texane/stlink Flash memory is mirrored in hardware starting from address 0. Mecrisp uses the low address range to generate short opcodes for calling core words, but for flashing the binary, you have to use the "true address" $08000000. st-flash erase st-flash write mecrisp-stellaris-stm32l152.bin 0x08000000 On startup, this runs with internal 16 MHz HSI clock. ;------------------------------------------------------------------------------ Hardware and configuration for STM32L476: ;------------------------------------------------------------------------------ Connect USB cable to ST-Link USB port. Terminal is included into the debug section on Discovery boards. Flashing is possible with st-flash: https://github.com/texane/stlink on Windows using STLINK Tools from ST website: http://www.st.com/web/en/catalog/tools/PF258168# Flash memory is mirrored in hardware starting from address 0. Mecrisp uses the low address range to generate short opcodes for calling core words, but for flashing the binary, you have to use the "true address" $08000000. st-flash erase st-flash write mecrisp-stellaris-stm32l476.bin 0x08000000 On startup, this runs with internal 48 MHz MSI clock. Currently flash ECC is supported. (JJ:O) ;------------------------------------------------------------------------------ Hardware and configuration for STM32F401 and STM32F411: ;------------------------------------------------------------------------------ Connect USB cable to ST-Link USB port. Terminal is included into the debug section on Nucleo boards. Flashing is possible with st-flash: https://github.com/texane/stlink Flash memory is mirrored in hardware starting from address 0. Mecrisp uses the low address range to generate short opcodes for calling core words, but for flashing the binary, you have to use the "true address" $08000000. st-flash erase st-flash write mecrisp-stellaris-stm32f401.bin 0x08000000 st-flash write mecrisp-stellaris-stm32f411.bin 0x08000000 On startup, this runs with internal 16 MHz HSI clock. ;------------------------------------------------------------------------------ Hardware and configuration for STM32F407: ;------------------------------------------------------------------------------ Connect USB cable to ST-Link USB port, connect your favourite serial link to PA2 (TX) and PA3 (RX), keep logic voltage levels in mind ! Flashing is possible with st-flash: https://github.com/texane/stlink Flash memory is mirrored in hardware starting from address 0. Mecrisp uses the low address range to generate short opcodes for calling core words, but for flashing the binary, you have to use the "true address" $08000000. st-flash erase st-flash write mecrisp-stellaris-stm32f407.bin 0x08000000 On startup, this runs with external 8 MHz crystal HSE clock, as internal oscillator is specified -8% + 4.5% over whole temp range. ;------------------------------------------------------------------------------ Hardware and configuration for STM32F429: ;------------------------------------------------------------------------------ Similiar to STM32F407. Connect USB cable to ST-Link USB port, connect your favourite serial link to PA9 (TX) and PA10 (RX), keep logic voltage levels in mind ! st-flash erase st-flash write mecrisp-stellaris-stm32f429.bin 0x08000000 On startup, this runs with external 8 MHz crystal HSE clock. ;------------------------------------------------------------------------------ Hardware and configuration for STM32F030F4: ;------------------------------------------------------------------------------ Connect everything necessary to power up and flash the chip. Connect your favourite serial link to PA9 (TX) and PA10 (RX), keep logic voltage levels in mind ! st-flash erase st-flash write mecrisp-stellaris-stm32f030f4.bin 0x08000000 On startup, this runs with internal 8 MHz HSI clock. ;------------------------------------------------------------------------------ Hardware and configuration for STM32F051: ;------------------------------------------------------------------------------ Similiar to STM32F407. Connect USB cable to ST-Link USB port, connect your favourite serial link to PA9 (TX) and PA10 (RX), keep logic voltage levels in mind ! st-flash erase st-flash write mecrisp-stellaris-stm32f051.bin 0x08000000 On startup, this runs with internal 8 MHz HSI clock. ;------------------------------------------------------------------------------ Hardware and configuration for STM32F100: ;------------------------------------------------------------------------------ Similiar to STM32F407. Connect USB cable to ST-Link USB port, connect your favourite serial link to PA9 (TX) and PA10 (RX), keep logic voltage levels in mind ! st-flash erase st-flash write mecrisp-stellaris-stm32f100.bin 0x08000000 On startup, this runs with internal 8 MHz HSI clock. ;------------------------------------------------------------------------------ Hardware and configuration for STM32F303: ;------------------------------------------------------------------------------ Similiar to STM32F407. Connect USB cable to ST-Link USB port, connect your favourite serial link to PA9 (TX) and PA10 (RX), keep logic voltage levels in mind ! st-flash erase st-flash write mecrisp-stellaris-stm32f303.bin 0x08000000 On startup, this runs with internal 8 MHz HSI clock. ;------------------------------------------------------------------------------ Hardware and configuration for KL25Z128, KL46Z256, MK64FN1M0: ;------------------------------------------------------------------------------ Connect USB cable to SDA-USB-PORT Flashing is via mass storage interface - the board will appear as Flash Disk, just copy .bin file in. Maybe you have to do an OpenSDA firmware update before. On startup, this runs with internal FLL at 20.97 MHz. If you wish to try Mecrisp-Stellaris without target hardware, there is a Cortex M0 instruction set emulator prepared for use with Freescale Freedom binary images. Go into kl25z128/thumbulator directory, type "make", copy the binary and then type "thumbulator mecrisp-stellaris-kl25z128.bin" to run. ;------------------------------------------------------------------------------ Hardware and configuration for XMC1100: ;------------------------------------------------------------------------------ Connect USB cable for flashing and terminal. Flashing is possible with JLinkExe from Segger, which is available for Linux: https://www.segger.com/jlink-software.html "Software and documentation pack", 32 Bit TGZ archive is fine. JLink_Linux_V510c_i386# ./JLinkExe -device XMC1100-0064 -if SWD -speed 4000 erase loadfile mecrisp-stellaris-xmc1100.hex r g OpenOCD 0.9 has support for the XMC2GO, but it failed with the firmware version of my board. The command line would be something like this: openocd -f board/xmc-2go.cfg openocd -f board/xmc-2go.cfg -c "program mecrisp-stellaris-xmc1100.hex verify reset exit" If you have issues with broken characters in the terminal, try changing the UART_FDR_STEP value in terminal.s a bit. To circumvent a bug in the XMC2GO serial bridge, the baudrate is set a bit off the nominal value. If you connect your own terminal, make sure to change it to the correct value. See mecrisp-stellaris-source/xmc1100/terminal.s for hints. On startup, this runs with internal MCLK = PCKL = 8 MHz clock. ;------------------------------------------------------------------------------ Hardware and configuration for EFM32GG990 and EFM32HG322: ;------------------------------------------------------------------------------ Connect USB cable to DBG connector for flashing and terminal. To get the mass storage flashing interface and USB-serial bridge, a firmware update of the on board debugger might be necessary. See instructions on MBED: https://developer.mbed.org/teams/SiliconLabs/wiki/Silicon-Labs-Firmware Flashing is done by copying the binary into the USB drive. Unfortunately, flashing this way doesn't not perform a proper mass erase. If you cannot get it up and running this way, you need use a proper debugger and erase the whole flash properly. On startup, this runs with internal HFCLK = HFRCO = 14 MHz clock. ;------------------------------------------------------------------------------ Hardware and configuration for MK20DX256VLH7 on a Teensy 3.1 board: ;------------------------------------------------------------------------------ ( Contributed by Mark Schweizer ) Connect USB cable to USB port Open Teensy Loader Application (https://www.pjrc.com/teensy/loader.html) on your PC Select the "mecrisp-stellaris-mk20dx256.hex" file in the mk20dx256 directory Select the "Auto" button (this automatically loads the coad and resets the Teensy when the programming button is pushed) Press the button on the Teensy 3.1 board to initite the bootloader Connect a serial cable to TX1/RX1 (physical pins #2/#3 (these are also Digital IO 0/1 lines) Optionally connect CTS/RTS to physical pins #25/26 (these are also Digital IO 18/18 lines) R C T T S S o o o o o o o o o o o o o o |--------------------------o | o USB| Teensy 3.1 o | o |--------------------------o o o o o o o o o o o o o o o G R T N X X D On startup, this runs with internal FLL at 20.97 MHz. See MCG.txt for how to switch to 96MHz ;------------------------------------------------------------------------------ Hardware and configuration for nRF51822: ;------------------------------------------------------------------------------ ( Contributed by John Huberts ) I have been using the nRFgo Motherboard fitted with a nRF51822 module to do the development and testing. Programming is done using nRFStudio and the Segger J-LINK LITE that comes with the dev kit. I was also able to debug using GDB in the nRF51 Eclipse IDE The motherboard has a DB9 for serial port connection but jumpers need to be placed between P15 (RXD, TXD) and P9 (P2.0, P2.1). If you don't have a serial port on your PC then you will need a USB-serial cable. The UART can be configured to use other pins on the SOC by changing these lines in in terminal.s: .equ RX_PIN_NUMBER, 16 .equ TX_PIN_NUMBER, 17 ;------------------------------------------------------------------------------ Hardware and configuration for Microbit: ;------------------------------------------------------------------------------ Flashing can be done by just copying mecrisp-stellaris-microbit.hex into the Microbit which comes with a mass storage interface. Communication is done over P0.24 TX and P0.25 RX, connected to USB-serial-bridge on debugger section. ;------------------------------------------------------------------------------ Hardware and configuration for Nutiny-SDK-NUC123: ;------------------------------------------------------------------------------ Connect 3.3V power or USB cable. Flashing is possible with (any clone of) st-link V2, (any clone of) black magic probe, or Nuvoton's ICP software (windows only). Here's how with openocd and st-link v2 on linux: Connect SWDIO to ICE_DAT, SWCLK to ICE_CLK, GND to VSS and 3.3V to VCC if not powered by USB. Get OpenOCD installed, chdir to nuc123 folder and adjust openocd.cfg there if needed. Then launch openocd, which should say something like this: TargetName Type Endian TapName State -- ------------------ ---------- ------ ------------------ ------------ 0* NuMicro.cpu hla_target little NuMicro.cpu unknown keep openocd running and telnet localhost 4444, then: reset halt flash erase_sector 0 0 135 flash write_image mecrisp-stellaris-nuc123.bin reset run Serial console pins are automatically configured: PB0(RX)/PB1(TX) for 64-pin package PC4(RX)/PC5(TX) for 48-pin package 33-pin package don't have UART0 but only UART1 and I don't have one, so it will maybe run but without serial terminal. ;------------------------------------------------------------------------------ Mecrisp-Stellaris itself is sending LF for line ending, but recognizes both LF and CR. Invoke Picocom with something like picocom -b 115200 /dev/ttyACM0 --imap lfcrlf,crcrlf --omap delbs,crlf For changing line ending to CR-LF or whatever else you like, look at the beginning of mecrisp-stellaris-....s. Assembling is done with the GCC-Arm-Embedded toolchain: https://launchpad.net/gcc-arm-embedded/ ;------------------------------------------------------------------------------ * Fetch-Modify-Store operations like +! or bic! are not atomic. * You can contribute your favourite hardware handling routines to be included in upcoming releases ! * Chip specific sources have added English comments and hints included for simplify porting to other ARM Cortex-M chips. * For design ideas, have a look into Mecrisp for MSP430, too ! ;------------------------------------------------------------------------------ ; Turnkey applications ;------------------------------------------------------------------------------ If you define a word with name "init" - its latest definition is called every startup ! You you can redefine init if you like to add e.g. additional hardware setup; don't forget to give your old definition of init a call if you have one. ;------------------------------------------------------------------------------ ; Porting ;------------------------------------------------------------------------------ Mecrisp-Stellaris can assemble without change for M0, M3 and M4 cores. M0 cores lack conditional execution "ite eq...", which has to be circumvented by conditional branches. stmdb psp!, {tos} is missing, which I use to push to data stack and they have no division in hardware. There is an assembler switch "m0core" to assemble the core with replacement code for ARM Cortex-M0 chips. Depending on your flash capabilities, there are two useful switches: "charkommaavailable" which is self-explaining and "emulated16bitflashwrites" if your particular Flash controller cannot write data in separate 16-Bit chunks. Core needs about 14 kb flash at the moment, but reserves 16 kb for upcoming additions, and needs 1.5 kb RAM for stacks and buffers plus variables for interrupt handlers plus RAM dictionary space. Bare minimum for ARM to get it running will be around 16kb/2kb, but to have fun with it and leave space for real applications, go with at least of 32 kb flash and 4 kb RAM. Look at the flash specification for your particular chip. The compiler only depends on 2-aligned 16-Bit flash writes one time per location, you can remove c, and halign without issues from the compiler, but 8-Bit flash writes are nice to have for compatibility with standard code. For special cases having only 4-aligned 32-bit one-time writes to Flash, there is a hflash! emulation layer. Flash erasing is only available for the user, it doesn't need erase cycles while compiling. Keep these criteria in mind, pick your favourite chip and add it as your contribution. It won't be too difficult, start with an UART echo written in assembly without libraries, and I will be there for your help. You have to change memory map, hardware initialisation and interrupt vectors, write key?, key, emit?, emit for a first reaction and flash write access for final success. There is a common mimimum set of handlers across ARM Cortex CPUs, which will help you to get it running for the first time. Unfortunately, there is a lot of bit twiddling necessary for peripherial modules, as they differ a lot across manufacturers. ARMs seem to only share core components like CPU, interrupt controler and a very basic systick timer. I don't have the time to support a lot of different chips with examples. TI ADCs have a sequencer FIFO buffer, ST ADCs need a DMA channel configured. TI Flash controller offers 32 bit aligned writes only, but as many as you wish per location until all bits are zero; ST-M3 have 16 bit aligned Flash write only, ST-M4 have 8 bit, 16 bit and 32 bit Flash writes available, but only once per location. I would like to focus on core development, support porting to other chips and families with adaptions in core, but leave writing initialisation code, testing and writing Forth examples to "family maintainers" which are deep into their chip of choice. ;------------------------------------------------------------------------------ ; Register allocator ;------------------------------------------------------------------------------ It should look and feel like the classic Mecrisp-Stellaris, but with a very important difference: It contains an analytical compiler which keeps track of the top five stack elements and maps them to registers whenever possible. To dive in, you should load the disassembler and see definitions you have just compiled. Two examples, on M0: : >gray ( u -- x ) dup 1 rshift xor ; ok. see >gray 00006B38: 0873 lsrs r3 r6 #1 00006B3A: 405E eors r6 r3 00006B3C: 4770 bx lr ok. : bitexp ( u -- u ) ok. ok. \ Returns an integer value equivalent to ok. \ the exponential. For numbers > 16, ok. \ bitexp(x) approx = 2^(x/8 + 1) ok. ok. \ B(E(x)) = x for 16 <= x <= 247. ok. ok. dup 247 u> \ Overflow ? ok. if drop $F0000000 ok. else ok. ok. dup 16 u<= if 1 rshift ok. else ok. dup ( u u ) ok. 7 and 8 or ( u b ) ok. swap ( b u ) ok. 3 rshift 2 - lshift ok. then ok. ok. then ok. ok. 1-foldable ; ok. ok. see bitexp 00006BA2: 2EF7 cmp r6 #F7 00006BA4: B500 push { lr } 00006BA6: D902 bls 00006BAE 00006BA8: 26F0 movs r6 #F0 00006BAA: 0636 lsls r6 r6 #18 00006BAC: E00C b 00006BC8 00006BAE: 2E10 cmp r6 #10 00006BB0: D801 bhi 00006BB6 00006BB2: 0876 lsrs r6 r6 #1 00006BB4: E008 b 00006BC8 00006BB6: 0033 lsls r3 r6 #0 00006BB8: 2007 movs r0 #7 00006BBA: 4003 ands r3 r0 00006BBC: 2008 movs r0 #8 00006BBE: 4303 orrs r3 r0 00006BC0: 08F6 lsrs r6 r6 #3 00006BC2: 3E02 subs r6 #2 00006BC4: 40B3 lsls r3 r6 00006BC6: 461E mov r6 r3 00006BC8: BD00 pop { pc } Note that it compiles bitexp without any stack movements at all. ;------------------------------------------------------------------------------ ; Hacking ;------------------------------------------------------------------------------ If you wish to dive into the assembly sources, here comes a register map: r0: Free scratch register ( Saved on interrupt entry by hardware ) r1: Free scratch register ( Saved on interrupt entry by hardware ) r2: Free scratch register ( Saved on interrupt entry by hardware ) r3: Free scratch register ( Saved on interrupt entry by hardware ) r4: Inner loop count ( Needs Push and Pop when used otherwise ) r5: Inner loop limit ( Needs Push and Pop when used otherwise ) r6=TOS: Top-Of-Stack ( Stack design is interrupt safe ) r7=PSP: Parameter Stack Pointer ( Stack design is interrupt safe ) r8: Unused r9: Unused r10: Unused r11: Unused r12: Unused ( Saved on interrupt entry by hardware ) r13=SP: Return Stack Pointer r14=LR: Link Register r15=PC: Program Counter, always odd ;------------------------------------------------------------------------------ Here comes a word list, with short descriptions of all currently included words: View it with fixed-width font ! ;------------------------------------------------------------------------------ ;------------------------------------------------------------------------------ ; Terminal-IO (exactly ANS, some logical extensions) ;------------------------------------------------------------------------------ emit? ( -- Flag ) Ready to send a character ? key? ( -- Flag ) Checks if a key is waiting key ( -- Char ) Waits for and fetches the pressed key emit ( Char -- ) Emits a character. hook-emit? ( -- a-addr ) Hooks for redirecting hook-key? ( -- a-addr ) terminal IO hook-key ( -- a-addr ) on the fly hook-emit ( -- a-addr ) serial-emit? ( -- Flag ) Serial interface serial-key? ( -- Flag ) terminal routines serial-key ( -- Char ) as default communications serial-emit ( Char -- ) hook-pause ( -- a-addr ) Hook for a multitasker pause ( -- ) Task switch, none for default ;------------------------------------------------------------------------------ ; Stack Jugglers (exactly ANS, some logical extensions) ;------------------------------------------------------------------------------ Single-Jugglers: depth ( -- +n ) Gives number of single-cell stack items. nip ( x1 x2 -- x2 ) drop ( x -- ) rot ( x1 x2 x3 -- x2 x3 x1 ) -rot ( x1 x2 x3 -- x3 x1 x2 ) swap ( x1 x2 -- x2 x1 ) tuck ( x1 x2 -- x2 x1 x2 ) over ( x1 x2 -- x1 x2 x1 ) ?dup ( x -- 0 | x x ) dup ( x -- x x ) pick ( ... xi+1 xi ... x1 x0 i -- ... x1 x0 xi ) Picks one element from deep below >r ( x -- ) (R: -- x ) r> ( -- x ) (R: x -- ) r@ ( -- x ) (R: x -- x ) rdrop ( -- ) (R: x -- ) rdepth ( -- +n ) Gives number of return stack items. rpick ( i -- xi ) R: ( ... xi ... x0 -- ... xi ... x0 ) Double-Jugglers: They perform the same for double numbers. 2nip ( x1 x2 x3 x4 -- x3 x4 ) 2drop ( x1 x2 -- ) 2rot ( x1 x2 x3 x4 x5 x6 -- x3 x4 x5 x6 x1 x2 ) 2-rot ( x1 x2 x3 x4 x5 x6 -- x5 x6 x1 x2 x3 x4 ) 2swap ( x1 x2 x3 x4 -- x3 x4 x1 x2 ) 2tuck ( x1 x2 x3 x4 -- x3 x4 x1 x2 x3 x4 ) 2over ( x1 x2 x3 x4 -- x1 x2 x3 x4 x1 x2 ) 2dup ( x1 x2 -- x1 x2 x1 x2 ) 2>r ( x1 x2 -- ) (R: -- x1 x2 ) 2r> ( -- x1 x2 ) (R: x1 x2 -- ) 2r@ ( -- x1 x2 ) (R: x1 x2 -- x1 x2 ) 2rdrop ( -- ) (R: x1 x2 -- ) Stack pointers: sp@ ( -- a-addr ) Fetch data stack pointer sp! ( a-addr -- ) Store data stack pointer rp@ ( -- a-addr ) Fetch return stack pointer rp! ( a-addr -- ) Store return stack pointer ;------------------------------------------------------------------------------ ; Logic (exactly ANS, some logical extensions) ;------------------------------------------------------------------------------ arshift ( x1 u -- x2 ) Arithmetric right-shift of u bit-places rshift ( x1 u -- x2 ) Logical right-shift of u bit-places lshift ( x1 u -- x2 ) Logical left-shift of u bit-places shr ( x1 -- x2 ) Logical right-shift of one bit-place shl ( x1 -- x2 ) Logical left-shift of one bit-place ror ( x1 -- x2 ) Logical right-rotation of one bit-place rol ( x1 -- x2 ) Logical left-rotation of one bit-place bic ( x1 x2 -- x3 ) Bit clear, identical to "not and" not ( x1 -- x2 ) Invert all bits xor ( x1 x2 -- x3 ) Bitwise Exclusive-OR or ( x1 x2 -- x3 ) Bitwise OR and ( x1 x2 -- x3 ) Bitwise AND false ( -- 0 ) False-Flag true ( -- -1 ) True-Flag clz ( x1 -- u ) Count leading zeros ;------------------------------------------------------------------------------ ; Calculus for single numbers (exactly ANS, some logical extensions) ;------------------------------------------------------------------------------ u/mod ( u1 u2 -- u3 u4 ) 32/32 = 32 rem 32 Division u1 / u2 = u4 remainder u3 /mod ( n1 n2 -- n3 n4 ) n1 / n2 = n4 rem n3 mod ( n1 n2 -- n3 ) n1 / n2 = remainder n3 / ( n1 n2 -- n3 ) n1 / n2 = n3 * ( u1|n1 u2|n2 -- u3|n3 ) 32*32 = 32 Multiplication min ( n1 n2 -- n1|n2 ) Keeps smaller of top two items max ( n1 n2 -- n1|n2 ) Keeps greater of top two items umin ( u1 u2 -- u1|u2 ) Keeps unsigned smaller umax ( u1 u2 -- u1|u2 ) Keeps unsigned greater 2- ( u1|n1 -- u2|n2 ) Subtracts two, optimized 1- ( u1|n1 -- u2|n2 ) Subtracts one, optimized 2+ ( u1|n1 -- u2|n2 ) Adds two, optimized 1+ ( u1|n1 -- u2|n2 ) Adds one, optimized even ( u1|n1 -- u2|n2 ) Makes even. Adds one if uneven. 2* ( n1 -- n2 ) Arithmetric left-shift 2/ ( n1 -- n2 ) Arithmetric right-shift abs ( n -- u ) Absolute value negate ( n1 -- n2 ) Negate - ( u1|n1 u2|n2 -- u3|n3 ) Subtraction + ( u1|n1 u2|n2 -- u3|n3 ) Addition ;------------------------------------------------------------------------------ ; Calculus involving double numbers (exactly ANS, some logical extensions) ;------------------------------------------------------------------------------ um* ( u1 u2 -- ud ) 32*32 = 64 Multiplication ud* ( ud1|d1 ud2|d2 -- ud3|d3 ) 64*64 = 64 Multiplication udm* ( ud1 ud2 -- ud3-Low ud4-High ) 64*64=128 Multiplication um/mod ( ud u1 -- u2 u3 ) ud / u1 = u3 remainder u2 ud/mod ( ud1 ud2 -- ud3 ud4 ) 64/64 = 64 rem 64 Division ud1 / ud2 = ud4 remainder ud3 m* ( n1 n2 -- d ) n1 * n2 = d m/mod ( d n1 -- n2 n3 ) d / n1 = n3 remainder r2 d/mod ( d1 d2 -- d3 d4 ) d1 / d2 = d4 remainder d3 d/ ( d1 d2 -- d3 ) d1 / d2 = d3 */ ( n1 n2 n3 -- n4 ) n1 * n2 / n3 = n4 u*/ ( u1 u2 u3 -- u4 ) u1 * u2 / u3 = u4 */mod ( n1 n2 n3 -- n4 n5 ) n1 * n2 / n3 = n5 remainder n4 u*/mod ( u1 u2 u3 -- u4 u5 ) u1 * u2 / u3 = u5 remainder u4 d2* ( d1 -- d2 ) Arithmetric left-shift d2/ ( d1 -- d2 ) Arithmetric right-shift dshl ( ud1 -- ud2 ) Logical left-shift, same as d2* dshr ( ud1 -- ud2 ) Logical right-shift dabs ( d -- ud ) Absolute value dnegate ( d1 -- d2 ) Negate d- ( ud1|d1 ud2|d2 -- ud3|d3 ) Subtraction d+ ( ud1|d1 ud2|d2 -- ud3|d3 ) Addition s>d ( n -- d ) Makes a signed single number double length ;------------------------------------------------------------------------------ ; Comparisions (exactly ANS, some logical extensions) ;------------------------------------------------------------------------------ Single-Comparisions: u<= ( u1 u2 -- flag ) Unsigned comparisions u>= ( u1 u2 -- flag ) u> ( u1 u2 -- flag ) u< ( u1 u2 -- flag ) <= ( n1 n2 -- flag ) Signed comparisions >= ( n1 n2 -- flag ) > ( n1 n2 -- flag ) < ( n1 n2 -- flag ) 0< ( n - flag ) Negative ? 0<> ( x -- flag ) 0= ( x -- flag ) <> ( x1 x2 -- flag ) = ( x1 x2 -- flag ) Double-Comparisions: They perform the same for double numbers. du> ( ud1 ud2 -- flag ) du< ( ud1 ud2 -- flag ) d> ( d1 d2 -- flag ) d< ( d1 d2 -- flag ) d0< ( d -- flag ) d0= ( d -- flag ) d<> ( d1 d2 -- flag ) d= ( d1 d2 -- flag ) ;------------------------------------------------------------------------------ ; Tools (not only) for s31.32 fixed point numbers (speciality!) ;------------------------------------------------------------------------------ Fixpoint numbers are stored ( n-comma n-whole ) and can be handled like signed double numbers. f/ ( df1 df2 -- df3 ) Division of two fixpoint numbers f* ( df1 df2 -- df3 ) Multiplication hold< ( char -- ) Adds character to pictured number output buffer from behind. f#S ( n-comma1 -- n-comma2 ) Adds 32 comma-digits to number output f# ( n-comma1 -- n-comma2 ) Adds one comma-digit to number output f. ( df -- ) Prints a fixpoint number with 32 fractional digits f.n ( df n -- ) Prints a fixpoint number with n fractional digits number ( c-addr length -- 0 ) -- n 1 ) -- n-low n-high 2 ) Tries to convert a string to a number. ;------------------------------------------------------------------------------ ; Number base (exactly ANS) ;------------------------------------------------------------------------------ binary ( -- ) Sets base to 2 decimal ( -- ) Sets base to 10 hex ( -- ) Sets base to 16 base ( -- a-addr ) Base variable address ;------------------------------------------------------------------------------ ; Memory access (subtle differences to ANS, special cpu-specific extensions) ;------------------------------------------------------------------------------ move ( c-addr1 c-addr2 u -- ) Moves u Bytes in Memory fill ( c-addr u c ) Fill u Bytes of Memory with value c cbit@ ( mask c-addr -- flag ) Test BIts in byte-location hbit@ ( mask a-addr -- flag ) Test BIts in halfword-location bit@ ( mask a-addr -- flag ) Test BIts in word-location cxor! ( mask c-addr -- ) Toggle bits in byte-location hxor! ( mask a-addr -- ) Toggle bits in halfword-location xor! ( mask a-addr -- ) Toggle bits in word-location cbic! ( mask c-addr -- ) Clear BIts in byte-location hbic! ( mask a-addr -- ) Clear BIts in halfword-location bic! ( mask a-addr -- ) Clear BIts in word-location cbis! ( mask c-addr -- ) Set BIts in byte-location hbis! ( mask a-addr -- ) Set BIts in halfword-location bis! ( mask a-addr -- ) Set BIts in word-location 2constant name ( ud|d -- ) Makes a double constant. constant name ( u|n -- ) Makes a single constant. 2variable name ( ud|d -- ) Makes an initialized double variable variable name ( n|n -- ) Makes an initialized single variable nvariable name ( n1*u|n n1 -- ) Makes an initialized variable with specified size of n1 words Maximum is 15 words buffer: name ( u -- ) Creates a buffer in RAM with u bytes length 2@ ( a-addr -- ud|d ) Fetches double number from memory 2! ( ud|d a-addr -- ) Stores double number in memory @ ( a-addr -- u|n ) Fetches single number from memory ! ( u|n a-addr -- ) Stores single number in memory +! ( u|n a-addr -- ) Add to memory location h@ ( c-addr -- char ) Fetches halfword from memory h! ( char c-addr ) Stores halfword in memory h+! ( u|n a-addr -- ) Add to halfword memory location c@ ( c-addr -- char ) Fetches byte from memory c! ( char c-addr ) Stores byte in memory c+! ( u|n a-addr -- ) Add to byte memory location ;------------------------------------------------------------------------------ ; Strings and beautiful output (exactly ANS, some logical extensions) ;------------------------------------------------------------------------------ String routines: type ( c-addr length -- ) Prints a string. s" Hello" Compiles a string and ( -- c-addr length ) gives back its address and length when executed. ." Hello" Compiles a string and ( -- ) prints it when executed. ( Comment ) Ignore Comment \ Comment Comment to end of line cr ( -- ) Emits line feed bl ( -- 32 ) ASCII code for Space space ( -- ) Emits space spaces ( n -- ) Emits n spaces if n is positive compare ( caddr-1 len-1 c-addr-2 len-2 -- flag ) Compares two strings accept ( c-addr maxlength -- length ) Read input into a string. Counted string routines: ctype ( cstr-addr -- ) Prints a counted string. c" Hello" Compiles a counted string and ( -- cstr-addr ) gives back its address when executed. cexpect ( cstr-addr maxlength -- ) Read input into a counted string. count ( cstr-addr -- c-addr length ) Convert counted string into addr-length string skipstring ( cstr-addr -- a-addr ) Increases the pointer to the aligned end of the string. Pictured numerical output: .digit ( u -- char ) Converts a digit to a char digit ( char -- u true | false ) Converts a char to a digit [char] * Compiles code of following char ( -- char ) when executed char * ( -- char ) gives code of following char hold ( char -- ) Adds character to pictured number output buffer from the front. sign ( n -- ) Add a minus sign to pictured number output buffer, if n is negative #S ( ud1|d1 -- 0 0 ) Add all remaining digits from the double length number to output buffer # ( ud1|d1 -- ud2|d2 ) Add one digit from the double length number to output buffer #> ( ud|d -- c-addr len ) Drops double-length number and finishes pictured numeric output ready for type <# ( -- ) Prepare pictured number output buffer u. ( u -- ) Print unsigned single number . ( n -- ) Print single number ud. ( ud -- ) Print unsigned double number d. ( d -- ) Print double number Deep insights: words ( -- ) Prints list of defined words. .s ( many -- many ) Prints stack contents, signed u.s ( many -- many ) Prints stack contents, unsigned h.s ( many -- many ) Prints stack contents, unsigned, hex hex. ( u -- ) Prints 32 bit unsigned in hex base, needs emit only. This is independent of number subsystem. ;------------------------------------------------------------------------------ ; User input and its interpretation (exactly ANS, some logical extensions) ;------------------------------------------------------------------------------ query ( -- ) Fetches user input to input buffer tib ( -- cstr-addr ) Input buffer current-source ( -- addr ) Double-Variable which contains source setsource ( c-addr len -- ) Change source source ( -- c-addr len ) Current source >in ( -- addr ) Variable with current offset into source token ( -- c-addr len ) Cuts one token out of input buffer parse ( char -- c-addr len ) Cuts anything delimited by char out of input buffer evaluate ( any addr len -- any ) Interpret given string interpret ( any -- any ) Execute, compile, fold, optimize... quit ( many -- ) (R: many -- ) Resets Stacks hook-quit ( -- a-addr ) Hook for changing the inner quit loop ;------------------------------------------------------------------------------ ; Dictionary expansion (exactly ANS, some logical extensions) ;------------------------------------------------------------------------------ align ( -- ) Aligns dictionary pointer aligned ( c-addr -- a-addr ) Advances to next aligned address cell+ ( x -- x+4 ) Add size of one cell cells ( n -- 4*n ) Calculate size of n cells allot ( n -- ) Tries to advance Dictionary Pointer by n bytes Aborts, if not enough space available here ( -- a-addr|c-addr ) Gives current position in Dictionary , ( u|n -- ) Appends a single number to dictionary ><, ( u|n -- ) Reverses high and low-halfword, then appends it to dictionary h, ( u|n -- ) Appends a halfword to dictionary compiletoram? ( -- ? ) Currently compiling into ram ? compiletoram ( -- ) Makes ram the target for compiling compiletoflash ( -- ) Makes flash the target for compiling forgetram ( -- ) Forget definitions in ram without a reset ;------------------------------------------------------------------------------ ; Dictionary expansion (speciality!) ;------------------------------------------------------------------------------ string, ( c-addr len -- ) Inserts a string of maximum 255 characters without runtime literal, ( u|n -- ) Compiles a literal with runtime inline, ( a-addr -- ) Inlines the choosen subroutine call, ( a-addr -- ) Compiles a call to a subroutine jump, ( Hole-for-Opcode Destination ) Writes an unconditional Jump to a-addr-Destination with the given Bitmask as Opcode into the halfword sized a-addr-Hole cjump, ( Hole-for-Opcode Destination Bitmask ) Writes a conditional Jump to a-addr-Destination with the given Bitmask as Opcode into the halfword sized a-addr-Hole ret, ( -- ) Compiles a ret opcode flashvar-here ( -- a-addr ) Gives current RAM management pointer dictionarystart ( -- a-addr ) Current entry point for dictionary search dictionarynext ( a-addr -- a-addr flag ) Scans dictionary chain and returns true if end is reached. Available depending on chip capabilities: c, ( char -- ) Appends a byte to dictionary halign ( -- ) Makes Dictionary Pointer even, if uneven. movwmovt, ( x Register -- ) Generate a movw/movt-Sequence to get x into any given Register. M3/M4 only registerliteral, ( x Register -- ) Generate shortest possible sequence to get x into given low Register. On M0: A movs-lsls-adds... sequence M3/M4: movs / movs-mvns / movw / movw-movt 12bitencoding ( x -- x false | bitmask true ) Can x be encoded as 12-bit immediate ? ;------------------------------------------------------------------------------ ; Flags and inventory (speciality!) ;------------------------------------------------------------------------------ smudge ( -- ) Makes current definition visible, burns collected flags to flash and takes care of proper ending inline ( -- ) Makes current definition inlineable. For flash, place it inside your definition ! immediate ( -- ) Makes current definition immediate. For flash, place it inside your definition ! compileonly ( -- ) Makes current definition compileonly. For flash, place it inside your definition ! setflags ( char -- ) Sets Flags with a mask. This isn't immediate, but for flash, place it inside your definition ! (create) name ( -- ) Creates and links a new invisible dictionary header that does nothing. Use FIG-style <builds .. does> ! find ( c-addr len -- a-addr flags ) Searches for a String in Dictionary. Gives back flags, which are different to ANS ! 0-foldable ( -- ) Current word becomes foldable with zero constants 1-foldable ( -- ) Current word becomes foldable with one constants 2-foldable ( -- ) Current word becomes foldable with two constants 3-foldable ( -- ) Current word becomes foldable with 3 constants ... 7-foldable ( -- ) Current word becomes foldable with 7 constants ;------------------------------------------------------------------------------ ; Compiler essentials (subtle differences to ANS) ;------------------------------------------------------------------------------ execute ( a-addr -- ) Calls subroutine recurse ( -- ) Lets the current definition call itself ' name ( -- a-addr ) Tries to find name in dictionary gives back executable address ['] name ( -- a-addr) Tick that compiles the executable address of found word as literal postpone name ( -- ) Helps compiling immediate words. does> ( -- ) executes: ( -- a-addr ) Gives address to where you have stored data. <builds ( -- ) Makes Dictionary header and reserves space for special call. create name ( -- ) Create a definition with default action which cannot be changed later. Use <builds does> instead. Equivalent to : create <builds does> ; state ( -- a-addr ) Address of state variable ] ( -- ) Switch to compile state [ ( -- ) Switch to execute state ; ( -- ) Finishes new definition : name ( -- ) Opens new definition ;------------------------------------------------------------------------------ ; Control structures (exactly ANS) ;------------------------------------------------------------------------------ Internally, they have complicated compile-time stack effects. Decisions: flag if ... then flag if ... else ... then then ( -- ) This is the common else ( -- ) flag if ... [else ...] then if ( flag -- ) structure. ahead ( -- ) Case: n case m1 of ... endof m2 .. ... ..... flag ?of ... endof all others endcase case ( n -- n ) Begins case structure of ( m -- ) Compares m with n, choose this if n=m ?of ( flag -- ) Flag-of, for custom comparisions endof ( -- ) End of one possibility endcase ( n -- ) Ends case structure, discards n Indefinite Loops: begin ... again begin ... flag until begin ... flag while ... repeat repeat ( -- ) Finish of a middle-flag-checking loop. while ( flag -- ) Check a flag in the middle of a loop until ( flag -- ) begin ... flag until loops until flag is true again ( -- ) begin ... again is an endless loop begin ( -- ) Definite Loops: limit index do ... [one or more leave(s)] ... loop ?do ... [one or more leave(s)] ... loop do ... [one or more leave(s)] ... n +loop ?do ... [one or more leave(s)] ... n +loop k ( -- u|n ) Gives third loop index j ( -- u|n ) Gives second loop index i ( -- u|n ) Gives innermost loop index unloop (R: old-limit old-index -- ) Drops innermost loop structure, pops back old loop structures to loop registers exit ( -- ) Returns from current definition. Compiles a ret opcode. leave ( -- ) (R: old-limit old-index -- ) Leaves current innermost loop promptly +loop ( u|n -- ) (R: unchanged | old-limit old-index -- ) Adds number to current loop index register and checks whether to continue or not loop ( -- ) (R: unchanged | old-limit old-index -- ) Increments current loop index register by one and checks whether to continue or not. ?do ( Limit Index -- ) (R: unchanged | -- old-limit old-index ) Begins a loop if limit and index are not equal do ( Limit Index -- ) (R: -- old-limit old-index ) Begins a loop ;------------------------------------------------------------------------------ ; Common Hardware access ;------------------------------------------------------------------------------ reset ( -- ) Reset on hardware level dint ( -- ) Disables Interrupts eint ( -- ) Enables Interrupts eint? ( -- ) Are Interrupts enabled ? nop ( -- ) No Operation. Hook for unused handlers ! ipsr ( -- ipsr ) Interrupt Program Status Register unhandled ( -- ) Message for unhandled interrupts. irq-systick ( -- a-addr ) Memory locations for IRQ-Hooks irq-fault ( -- a-addr ) For all faults irq-collection ( -- a-addr ) Collection of all unhandled interrupts ;------------------------------------------------------------------------------ ; Specials for LM4F120: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 1k flash page only. Take care: No Reset, no dictionary reinitialisation. cflash! ( char c-addr -- ) Writes byte to flash hflash! ( u|n a-addr -- ) Writes halfword to flash flash! ( u|n 4-a-addr -- ) Writes single number to flash, 4 aligned ! Interrupts: irq-porta ( -- a-addr ) Memory locations for IRQ-Hooks irq-portb irq-portc irq-portd irq-porte irq-portf irq-timer0a irq-timer0b irq-timer1a irq-timer1b irq-timer2a irq-timer2b irq-adc0seq0 irq-adc0seq1 irq-adc0seq2 irq-adc0seq3 irq-terminal Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for TM4C1294: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 16k flash page only. Take care: No Reset, no dictionary reinitialisation. cflash! ( char c-addr -- ) Writes byte to flash hflash! ( u|n a-addr -- ) Writes halfword to flash flash! ( u|n 4-a-addr -- ) Writes single number to flash, 4 aligned ! Interrupts: irq-porta ( -- a-addr ) Memory locations for IRQ-Hooks irq-portb irq-portc irq-portd irq-porte irq-portf irq-portg irq-porth irq-portj irq-portk irq-portl irq-timer0a irq-timer0b irq-timer1a irq-timer1b irq-timer2a irq-timer2b irq-timer3a irq-timer3b irq-adc0seq0 irq-adc0seq1 irq-adc0seq2 irq-adc0seq3 irq-adc1seq0 irq-adc1seq1 irq-adc1seq2 irq-adc1seq3 irq-ethernet irq-terminal Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for MSP432P401R: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 1k flash page only. Take care: No Reset, no dictionary reinitialisation. cflash! ( char c-addr -- ) Writes byte to flash hflash! ( u|n a-addr -- ) Writes halfword to flash flash! ( u|n 4-a-addr -- ) Writes single number to flash, 4 aligned ! Interrupts: irq-port1 ( -- a-addr ) Memory locations for IRQ-Hooks irq-port2 irq-port3 irq-port4 irq-port5 irq-port6 irq-watchdog irq-adc irq-timera0 irq-timera1 Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for LPC1114FN28, LPC1114FBD48 and LPC1115FBD48: ;------------------------------------------------------------------------------ initflash ( -- ) Clear buffers hflash! ( u|n a-addr -- ) Writes halfword to flash (buffered) flushflash ( -- ) Flush flash buffers needed if you comma in values after create flash-khz ( -- addr ) Variable with current core frequency in kHz eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. 16flash! ( x1 x2 x3 x4 addr -- ) Flash aligned 16 Bytes at once irq-i2c ( -- a-addr ) Memory locations for IRQ-Hooks irq-uart irq-adc Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for STM32F051: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 1k flash page only. Take care: No Reset, no dictionary reinitialisation. hflash! ( u|n a-addr -- ) Writes halfword to flash Interrupts: irq-adc ( -- a-addr ) Memory locations for IRQ-Hooks irq-exti0_1 irq-exti2_3 irq-exti4_15 irq-tim1_up irq-tim1_cc irq-tim2 irq-tim3 Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for STM32F030F4: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. hflash! ( u|n a-addr -- ) Writes halfword to flash Interrupts: irq-adc ( -- a-addr ) Memory locations for IRQ-Hooks irq-exti0_1 irq-exti2_3 irq-exti4_15 irq-tim1_up irq-tim1_cc irq-tim3 Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for STM32L053C8: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 128 byte flash page only. Take care: No Reset, no dictionary reinitialisation. flash! ( u|n a-addr -- ) Writes word to flash Interrupts: irq-rtc ( -- a-addr ) Memory locations for IRQ-Hooks irq-exti0_1 irq-exti2_3 irq-exti4_15 irq-touch irq-dma1 irq-dma2_3 irq-dma4_7 irq-adc irq-lptim1 irq-tim2 irq-dac irq-tim21 irq-tim22 irq-i2c1 irq-i2c2 irq-spi1 irq-spi2 irq-usart1 irq-usart2 irq-rng irq-lcd irq-usb Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for STM32L152: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 256 byte flash page only. Take care: No Reset, no dictionary reinitialisation. flash! ( u|n a-addr -- ) Writes word to flash Interrupts: irq-adc ( -- a-addr ) Memory locations for IRQ-Hooks irq-dac irq-exti4 irq-exti3 irq-exti2 irq-exti1 irq-exti0 irq-tim2 irq-tim3 irq-tim4 Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for STM32L476: ;------------------------------------------------------------------------------ Flash: initflash ( -- ) Clear buffers hflash! ( u|n a-addr -- ) Writes halfword to flash (buffered) flushflash ( -- ) Flush flash buffers needed if you comma in values after create eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 2048 byte flash page only. Take care: No Reset, no dictionary reinitialisation. 16flash! ( x1 x2 x3 x4 addr -- ) Flash 4 words aligned at 8 byte boundary at once Interrupts: irq-adc ( -- a-addr ) Memory locations for IRQ-Hooks irq-exti4 irq-exti3 irq-exti2 irq-exti1 irq-exti0 irq-tim2 irq-tim3 irq-tim4 Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for STM32F100: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 1k flash page only. Take care: No Reset, no dictionary reinitialisation. hflash! ( u|n a-addr -- ) Writes halfword to flash Interrupts: irq-adc ( -- a-addr ) Memory locations for IRQ-Hooks irq-exti4 irq-exti3 irq-exti2 irq-exti1 irq-exti0 Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for STM32F103: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 1k flash page only. Take care: No Reset, no dictionary reinitialisation. hflash! ( u|n a-addr -- ) Writes halfword to flash Interrupts: irq-adc ( -- a-addr ) Memory locations for IRQ-Hooks irq-exti4 irq-exti3 irq-exti2 irq-exti1 irq-exti0 irq-rtc irq-exti5 irq-tim1brk irq-tim1up irq-tim1trg irq-tim1cc irq-tim2 irq-tim3 irq-tim4 irq-i2c1ev irq-i2c1er irq-i2c2ev irq-i2c2er irq-spi1 irq-spi2 irq-usart1 irq-usart2 irq-usart3 irq-exti10 irq-rtcalarm irq-usbwkup irq-tim5 irq-spi3 irq-uart4 irq-uart5 irq-tim6 irq-tim7 irq-usbfs Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for STM32F303: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 2k flash page only. Take care: No Reset, no dictionary reinitialisation. hflash! ( u|n a-addr -- ) Writes halfword to flash Interrupts: irq-adc ( -- a-addr ) Memory locations for IRQ-Hooks irq-exti4 irq-exti3 irq-exti2 irq-exti1 irq-exti0 irq-tim2 irq-tim3 irq-tim4 Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for STM32F401, STM32F411, STM32F407 and STM32F429: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashsector ( u -- ) Erases one sector of Flash cflash! ( char c-addr -- ) Writes byte to flash hflash! ( u|n a-addr -- ) Writes halfword to flash Interrupts: irq-adc ( -- a-addr ) Memory locations for IRQ-Hooks irq-exti4 irq-exti3 irq-exti2 irq-exti1 irq-exti0 irq-tim2 irq-tim3 irq-tim4 Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for KL25Z128 and KL46Z256: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 1k flash page only. Take care: No Reset, no dictionary reinitialisation. hflash! ( u|n a-addr -- ) Writes halfword to flash - emulated flash! ( u|n 4-a-addr -- ) Writes single number to flash, 4 aligned ! Interrupts: irq-adc ( -- a-addr ) Memory locations for IRQ-Hooks irq-dac irq-cmp irq-porta irq-portd Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for MK64FN1M0: ;------------------------------------------------------------------------------ Flash: initflash ( -- ) Clear buffers hflash! ( u|n a-addr -- ) Writes halfword to flash (buffered) flushflash ( -- ) Flush flash buffers needed if you comma in values after create eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 4 kb flash page only. Take care: No Reset, no dictionary reinitialisation. 16flash! ( x1 x2 x3 x4 addr -- ) Flash 4 words aligned at 8 byte boundary at once Interrupts: irq-adc0 ( -- a-addr ) Memory locations for IRQ-Hooks irq-adc1 irq-dac0 irq-dac1 irq-cmp0 irq-cmp1 irq-cmp2 irq-porta irq-portb irq-portc irq-portd irq-porte Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for XMC1100: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 256 byte flash page only. No Reset, no dictionary reinitialisation. initflash ( -- ) Clear buffers hflash! ( u|n a-addr -- ) Writes halfword to flash (buffered) flushflash ( -- ) Flush flash buffers needed if you comma in values after create 16flash! ( x1 x2 x3 x4 addr -- ) Flash aligned 16 Bytes at once Interrupts: irq-scu0 ( -- a-addr ) Memory locations for IRQ-Hooks irq-scu1 irq-eru0 irq-eru1 irq-eru2 irq-eru3 irq-usi0 irq-usi1 irq-usi2 irq-usi3 irq-usi4 irq-usi5 irq-adc0 irq-adc1 irq-ccu0 irq-ccu1 irq-ccu2 irq-ccu3 ;------------------------------------------------------------------------------ ; Specials for EFM32GG990: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 4 kb flash page only. No Reset, no dictionary reinitialisation. hflash! ( u|n a-addr -- ) Writes halfword to flash Interrupts: irq-dma ( -- a-addr ) Memory locations for IRQ-Hooks irq-gpioeven irq-timer0 irq-usart0rx irq-usart0tx irq-acmp0 irq-adc0 irq-dac0 irq-i2c0 irq-gpioodd irq-timer1 irq-timer2 irq-usart1rx irq-usart1tx irq-usart2rx irq-usart2tx irq-uart0rx irq-uart0tx irq-leuart0 irq-leuart1 irq-letimer0 irq-pcnt0 irq-pcnt1 irq-pcnt2 irq-rtc irq-cmu irq-vcmp irq-lcd irq-msc irq-aes ;------------------------------------------------------------------------------ ; Specials for EFM32HG322: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 1 kb flash page only. No Reset, no dictionary reinitialisation. hflash! ( u|n a-addr -- ) Writes halfword to flash Interrupts: irq-dma ( -- a-addr ) Memory locations for IRQ-Hooks irq-gpioeven irq-timer0 irq-acmp0 irq-adc0 irq-i2c0 irq-gpioodd irq-timer1 irq-usart1rx irq-usart1tx irq-leuart0 irq-pcnt0 irq-rtc irq-cmu irq-vcmp irq-msc irq-aes irq-usart0rx irq-usart0tx irq-usb irq-timer2 ;------------------------------------------------------------------------------ ; Specials for MK20DX256: ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 1k flash page only. Take care: No Reset, no dictionary reinitialisation. hflash! ( u|n a-addr -- ) Writes halfword to flash - emulated flash! ( u|n 4-a-addr -- ) Writes single number to flash, 4 aligned ! Interrupts: irq-adc0 ( -- a-addr ) Memory locations for IRQ-Hooks irq-adc1 irq-dac irq-cmp0 irq-cmp1 irq-cmp2 irq-porta irq-portb irq-portc irq-portd irq-porte irq-uart0S irq-uart0E Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for nRF51822 and Microbit ;------------------------------------------------------------------------------ Flash: eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. flashpageerase ( a-addr -- ) Erase one 1k flash page only. Take care: No Reset, no dictionary reinitialisation. hflash! ( u|n a-addr -- ) Writes halfword to flash Interrupts: irq-power ( -- a-addr ) Memory locations for IRQ-Hooks irq-radio irq-uart irq-spi0 irq-spi1 irq-gpiote irq-adc irq-tim0 irq-tim1 irq-tim2 irq-rtc0 irq-temp irq-rng irq-ecb irq-ccm_aar irq-wdt irq-rtc1 irq-qdec irq-lpcomp irq-swi0 irq-swi1 irq-swi2 irq-swi3 irq-swi4 irq-swi5 Look into vectors.s and interrupts.s to add more interrupts. ;------------------------------------------------------------------------------ ; Specials for Linux ;------------------------------------------------------------------------------ "Flash": eraseflash ( -- ) Erases everything. Clears Ram. Restarts Forth. eraseflashfrom ( a-addr -- ) Starts erasing at this address. Clears Ram. Restarts Forth. cflash! ( char c-addr -- ) Writes byte to "flash" hflash! ( u|n a-addr -- ) Writes halfword to "flash" System: cacheflush ( -- ) Flushes data and instruction cache syscall ( r0 r1 r2 r3 r4 r5 r6 Syscall# -- r0 ) Perform Syscall arguments ( -- a-addr ) Gives the initial stack pointer which contains command line arguments. bye ( -- ) Leave Mecrisp-Stellaris Matthias Koch, Summer 2013, updated Spring 2016
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