diff options
Diffstat (limited to 'source/stmdsp/stmdsp_code.hpp')
| -rw-r--r-- | source/stmdsp/stmdsp_code.hpp | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/source/stmdsp/stmdsp_code.hpp b/source/stmdsp/stmdsp_code.hpp new file mode 100644 index 0000000..6850459 --- /dev/null +++ b/source/stmdsp/stmdsp_code.hpp @@ -0,0 +1,199 @@ +/** + * @file stmdsp_code.hpp + * @brief Source code and build scripts for stmdsp device algorithms. + * + * Copyright (C) 2021 Clyne Sullivan + * + * Distributed under the GNU GPL v3 or later. You should have received a copy of + * the GNU General Public License along with this program. + * If not, see <https://www.gnu.org/licenses/>. + */ + +#ifndef STMDSP_CODE_HPP +#define STMDSP_CODE_HPP + +#ifdef STMDSP_WIN32 +#define NEWLINE "\r\n" +#define COPY "copy" +#else +#define NEWLINE "\n" +#define COPY "cp" +#endif + +namespace stmdsp { + +// $0 = temp file name +// TODO try -ffunction-sections -fdata-sections -Wl,--gc-sections +static std::string makefile_text_h7 = +#ifdef STMDSP_WIN32 + "echo off" NEWLINE +#endif + "arm-none-eabi-g++ -x c++ -Os -std=c++20 -fno-exceptions -fno-rtti " + "-mcpu=cortex-m7 -mthumb -mfloat-abi=hard -mfpu=fpv5-d16 -mtune=cortex-m7 " + "-nostartfiles " + "-Wl,-Ttext-segment=0x00000000 -Wl,-zmax-page-size=512 -Wl,-eprocess_data_entry " + "$0 -o $0.o" NEWLINE + COPY " $0.o $0.orig.o" NEWLINE + "arm-none-eabi-strip -s -S --strip-unneeded $0.o" NEWLINE + "arm-none-eabi-objcopy --remove-section .ARM.attributes " + "--remove-section .comment " + "--remove-section .noinit " + "$0.o" NEWLINE + "arm-none-eabi-size $0.o" NEWLINE; +static std::string makefile_text_l4 = +#ifdef STMDSP_WIN32 + "echo off" NEWLINE +#endif + "arm-none-eabi-g++ -x c++ -Os -std=c++20 -fno-exceptions -fno-rtti " + "-mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mtune=cortex-m4 " + "-nostartfiles -I$1/cmsis " + "-Wl,-Ttext-segment=0x10000000 -Wl,-zmax-page-size=512 -Wl,-eprocess_data_entry " + "$0 -o $0.o" NEWLINE + COPY " $0.o $0.orig.o" NEWLINE + "arm-none-eabi-strip -s -S --strip-unneeded $0.o" NEWLINE + "arm-none-eabi-objcopy --remove-section .ARM.attributes " + "--remove-section .comment " + "--remove-section .noinit " + "$0.o" NEWLINE + "arm-none-eabi-size $0.o" NEWLINE; + +// $0 = buffer size +static std::string file_header_h7 = R"cpp( +#include <cstdint> +#include <span> + +using Sample = uint16_t; +using Samples = std::span<Sample, $0>; + +Sample *process_data(Samples samples); +extern "C" void process_data_entry() +{ + Sample *samples; + asm("mov %0, r0" : "=r" (samples)); + process_data(Samples(samples, $0)); +} + +static double PI = 3.14159265358979323846L; +__attribute__((naked)) +auto sin(double x) { +asm("vmov.f64 r1, r2, d0;" + "eor r0, r0;" + "svc 1;" + "vmov.f64 d0, r1, r2;" + "bx lr"); +return 0; +} +__attribute__((naked)) +auto cos(double x) { +asm("vmov.f64 r1, r2, d0;" + "mov r0, #1;" + "svc 1;" + "vmov.f64 d0, r1, r2;" + "bx lr"); +return 0; +} +__attribute__((naked)) +auto tan(double x) { +asm("vmov.f64 r1, r2, d0;" + "mov r0, #2;" + "svc 1;" + "vmov.f64 d0, r1, r2;" + "bx lr"); +return 0; +} +__attribute__((naked)) +auto sqrt(double x) { +asm("vsqrt.f64 d0, d0; bx lr"); +return 0; +} + +auto readalt() { +Sample s; +asm("svc 3; mov %0, r0" : "=&r"(s)); +return s; +} + +// End stmdspgui header code + +)cpp"; +static std::string file_header_l4 = R"cpp( +#include <cstdint> +#include <span> + +using Sample = uint16_t; +using Samples = std::span<Sample, $0>; + +Sample *process_data(Samples samples); +extern "C" void process_data_entry() +{ + Sample *samples; + asm("mov %0, r0" : "=r" (samples)); + process_data(Samples(samples, $0)); +} + +static float PI = 3.14159265358979L; +__attribute__((naked)) +auto sin(float x) { +asm("vmov.f32 r1, s0;" + "eor r0, r0;" + "svc 1;" + "vmov.f32 s0, r1;" + "bx lr"); +return 0; +} +__attribute__((naked)) +auto cos(float x) { +asm("vmov.f32 r1, s0;" + "mov r0, #1;" + "svc 1;" + "vmov.f32 s0, r1;" + "bx lr"); +return 0; +} +__attribute__((naked)) +auto tan(float x) { +asm("vmov.f32 r1, s0;" + "mov r0, #2;" + "svc 1;" + "vmov.f32 s0, r1;" + "bx lr"); +return 0; +} +__attribute__((naked)) +auto sqrt(float) { +asm("vsqrt.f32 s0, s0; bx lr"); +return 0; +} + +auto readpot1() { +Sample s; +asm("push {r4-r11}; eor r0, r0; svc 3; mov %0, r0; pop {r4-r11}" : "=r"(s)); +return s; +} +auto readpot2() { +Sample s; +asm("push {r4-r11}; mov r0, #1; svc 3; mov %0, r0; pop {r4-r11}" : "=r"(s)); +return s; +} + +//void puts(const char *s) { +// 's' will already be in r0. +//asm("push {r4-r6}; svc 4; pop {r4-r6}"); +//} + +// End stmdspgui header code + +)cpp"; + + +static std::string file_content = +R"cpp(Sample *process_data(Samples samples) +{ + return samples.data(); +} +)cpp"; + +} // namespace stmdsp + +#endif // STMDSP_CODE_HPP + |