1 files changed, 70 insertions, 8 deletions

diff --git a/gui/wxmain.cpp b/gui/wxmain.cpp
index e5f0d4d..d020bef 100644
--- a/gui/wxmain.cpp
+++ b/gui/wxmain.cpp
@@ -46,10 +46,10 @@ static const std::array<unsigned int, 6> srateNums {
     96000
 };
 
-static const char *makefile_text = R"make(
+static const char *makefile_text_h7 = R"make(
 all:
 	@arm-none-eabi-g++ -x c++ -Os -fno-exceptions -fno-rtti \
-	                   -mcpu=cortex-m7 -mthumb -mfloat-abi=hard -mfpu=fpv5-d16 -mtune=cortex-m7 \
+                       -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
@@ -61,8 +61,23 @@ all:
                            $0.o
 	arm-none-eabi-size $0.o
 )make";
+static const char *makefile_text_l4 = R"make(
+all:
+	@arm-none-eabi-g++ -x c++ -Os -fno-exceptions -fno-rtti \
+	                   -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mtune=cortex-m4 \
+	                   -nostartfiles \
+	                   -Wl,-Ttext-segment=0x10000000 -Wl,-zmax-page-size=512 -Wl,-eprocess_data_entry \
+	                   $0 -o $0.o
+	@cp $0.o $0.orig.o
+	@arm-none-eabi-strip -s -S --strip-unneeded $0.o
+	@arm-none-eabi-objcopy --remove-section .ARM.attributes \
+                           --remove-section .comment \
+                           --remove-section .noinit \
+                           $0.o
+	arm-none-eabi-size $0.o
+)make";
 
-static const char *file_header = R"cpp(
+static const char *file_header_h7 = R"cpp(
 #include <cstdint>
 
 using adcsample_t = uint16_t;
@@ -103,18 +118,63 @@ return 0;
 }
 __attribute__((naked))
 auto sqrt(double x) {
-asm("vmov.f64 r1, r2, d0;"
-	"mov r0, #3;"
+asm("vsqrt.f64 d0, d0; bx lr");
+return 0;
+}
+
+// End stmdspgui header code
+
+)cpp";
+static const char *file_header_l4 = R"cpp(
+#include <cstdint>
+
+using adcsample_t = uint16_t;
+constexpr unsigned int SIZE = $0;
+adcsample_t *process_data(adcsample_t *samples, unsigned int size);
+extern "C" void process_data_entry()
+{
+    ((void (*)())process_data)();
+}
+
+constexpr 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.f64 d0, r1, r2;"
+	"vmov.f32 s0, r1;"
+	"bx lr");
+return 0;
+}
+__attribute__((naked))
+auto tan(double 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;
+}
 
 // End stmdspgui header code
 
 )cpp";
 
+
 static const char *file_content = 
 R"cpp(adcsample_t *process_data(adcsample_t *samples, unsigned int size)
 {
@@ -416,14 +476,16 @@ wxString MainFrame::compileEditorCode()
         m_temp_file_name = wxFileName::CreateTempFileName("stmdspgui");
 
     wxFile file (m_temp_file_name, wxFile::write);
-    wxString file_text (file_header);
+    wxString file_text (m_device->get_platform() == stmdsp::platform::L4 ? file_header_l4
+                                                                         : file_header_h7);
     file_text.Replace("$0", std::to_string(m_device ? m_device->get_buffer_size()
                                                     : stmdsp::SAMPLES_MAX));
     file.Write(wxString(file_text) + m_text_editor->GetText());
     file.Close();
 
     wxFile makefile (m_temp_file_name + "make", wxFile::write);
-    wxString make_text (makefile_text);
+    wxString make_text (m_device->get_platform() == stmdsp::platform::L4 ? makefile_text_l4
+                                                                         : makefile_text_h7);
     make_text.Replace("$0", m_temp_file_name);
     makefile.Write(make_text);
     makefile.Close();