You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
200 lines
4.4 KiB
C++
200 lines
4.4 KiB
C++
/**
|
|
* @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
|
|
|