multiple frames
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a4854efd4a
commit
826234a93d
177
frame.cpp
177
frame.cpp
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@ -13,16 +13,10 @@ enum ExitStatus {
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};
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int main(int argc, char** argv) {
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if (argc != 2) {
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if (argc < 2) {
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return BAD_ARGUMENT;
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}
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std::fstream infile;
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infile.open(argv[1], std::ios::in);
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if (! infile) {
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return FILE_NOT_OPEN;
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}
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std::fstream outfile;
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outfile.open("frame.S", std::ios::out);
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if (! outfile) {
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@ -32,91 +26,100 @@ int main(int argc, char** argv) {
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outfile << "#include \"macro.h\"" << std::endl;
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outfile << "#include <avr/io.h>" << std::endl;
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outfile << ".global line_jump_table" << std::endl;
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outfile << "line_jump_table:" << std::endl;
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for (int i = 0; i < 256; ++i) {
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outfile << '\t' << "jmp line_" << i << std::endl;
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}
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int width, height;
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std::string format;
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char c;
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getline(infile, format);
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std::cout << format << std::endl;
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if (format != "P1") {
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return FILE_BAD_FORMAT;
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}
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// skip one line TODO
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getline(infile, format);
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std::cout << format << std::endl;
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infile >> width >> height;
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std::cout << width << " x " << height << std::endl;
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char* image = new char[height * width];
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for (int y = 0; y < height; ) {
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for (int x = 0; x < width; ) {
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c = infile.get();
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if (! infile.good())
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return FILE_BAD_FORMAT;
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if (c == '0' || c == '1') {
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image[y * width + x] = c;
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x++;
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} else {
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continue;
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}
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for (int current_image = 0; current_image < argc - 1; ++current_image) {
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outfile << ".global line_jump_table_" << current_image << std::endl;
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outfile << "line_jump_table_" << current_image << ":" << std::endl;
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for (int i = 0; i < 256; ++i) {
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outfile << '\t' << "jmp line_" << current_image << "_" << i << std::endl;
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}
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y++;
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}
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infile.close();
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for (int y = 0; y < height; ++y) {
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outfile << "line_" << y << ":" << std::endl;
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int count = 0;
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char last = image[y * width + 0];
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for (int x = 0; x < width; ++x) {
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char current = image[y * width + x];
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std::cout << "current " << current << " last " << last << std::endl;
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if (current == last) {
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++count;
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} else {
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std::cout << "detected change" << std::endl;
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if (last == '0') {
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std::cout << "clear" << std::endl;
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outfile << '\t' << "cbi IO(PORTB), 4" << std::endl;
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} else if (last == '1') {
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std::cout << "set" << std::endl;
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outfile << '\t' << "sbi IO(PORTB), 4" << std::endl;
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}
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if (count > 1) {
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outfile << '\t' << "ldi r31, " << count - 1 << std::endl;
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outfile << "1:" << std::endl;
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outfile << '\t' << "dec r31" << std::endl;
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outfile << '\t' << "nop" << std::endl;
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outfile << '\t' << "brne 1b" << std::endl;
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}
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outfile << '\t' << "rjmp 2f" << std::endl;
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outfile << "2:" << std::endl;
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last = current;
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count = 1;
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}
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for (int current_image = 0; current_image < argc - 1; ++current_image) {
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std::fstream infile;
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infile.open(argv[1 + current_image], std::ios::in);
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if (! infile) {
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return FILE_NOT_OPEN;
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}
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outfile << '\t' << "cbi IO(PORTB), 4" << std::endl;
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outfile << '\t' << "jmp jump_table_return_address" << std::endl;
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int width, height;
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std::string format;
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char c;
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getline(infile, format);
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std::cout << format << std::endl;
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if (format != "P1") {
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return FILE_BAD_FORMAT;
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}
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// skip one line TODO
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getline(infile, format);
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std::cout << format << std::endl;
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infile >> width >> height;
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std::cout << width << " x " << height << std::endl;
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char* image = new char[height * width];
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for (int y = 0; y < height; ) {
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for (int x = 0; x < width; ) {
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c = infile.get();
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if (! infile.good())
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return FILE_BAD_FORMAT;
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if (c == '0' || c == '1') {
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image[y * width + x] = c;
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x++;
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} else {
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continue;
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}
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}
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y++;
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}
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infile.close();
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for (int y = 0; y < height; ++y) {
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outfile << "line_" << current_image << "_" << y << ":" << std::endl;
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int count = 0;
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char last = image[y * width + 0];
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for (int x = 0; x < width; ++x) {
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char current = image[y * width + x];
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std::cout << "current " << current << " last " << last << std::endl;
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if (current == last) {
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++count;
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} else {
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std::cout << "detected change" << std::endl;
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if (last == '0') {
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std::cout << "clear" << std::endl;
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outfile << '\t' << "cbi IO(PORTB), 4" << std::endl;
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} else if (last == '1') {
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std::cout << "set" << std::endl;
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outfile << '\t' << "sbi IO(PORTB), 4" << std::endl;
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}
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if (count > 1) {
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outfile << '\t' << "ldi r31, " << count - 1 << std::endl;
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outfile << "1:" << std::endl;
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outfile << '\t' << "dec r31" << std::endl;
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outfile << '\t' << "nop" << std::endl;
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outfile << '\t' << "brne 1b" << std::endl;
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}
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outfile << '\t' << "rjmp 2f" << std::endl;
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outfile << "2:" << std::endl;
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last = current;
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count = 1;
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}
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}
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outfile << '\t' << "cbi IO(PORTB), 4" << std::endl;
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outfile << '\t' << "jmp jump_table_return_address" << std::endl;
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}
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delete[] image;
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}
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94
main.S
94
main.S
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@ -2,11 +2,25 @@
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#include "macro.h"
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#include "const.h"
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.data
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image:
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.byte 0xff
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show_image:
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.byte 0x00
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button_next_image:
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.byte 0x0
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current_jump_table:
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.word 0x0
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.text
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.global main
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main:
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ldi r16, 0x30 ; port B, pin 4 and 5 as output
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ldi r16, 0x30 ; port B, pin 4 and 5 as output, others as input
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sts DDRB, r16
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; set interrupt vectors at address 0x0, not bootloader
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@ -34,6 +48,10 @@ main:
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sts line, r16
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ldi r16, 0xfe
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sts line + 1, r16
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ldi r16, 0xff
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sts image, r16
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ldi r16, 0
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sts show_image, r16
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; r0 always holds 0
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clr r0
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@ -98,10 +116,17 @@ int_timer_0:
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andi r31, 0xfd ; mask disable interrupt timer A
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sts TIMSK0, r31
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clr r0
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ldi zl, pm_lo8(line_jump_table)
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ldi zh, pm_hi8(line_jump_table)
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lds r31, show_image
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cpi r31, 0x1
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brne jump_table_return_address
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lds zl, current_jump_table
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lds zh, current_jump_table + 1
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; ldi zl, pm_lo8(line_jump_table_0)
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; ldi zh, pm_hi8(line_jump_table_0)
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clr r0
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lds r29, line
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add zl, r29
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adc zh, r0
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@ -123,8 +148,10 @@ jump_table_return_address:
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int_vertical_sync:
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push r31
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in r31, IO(SREG)
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push r31
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push r30
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push zl
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push zh
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push yl
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push yh
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lds r31, frame + 1
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lds r30, frame
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@ -137,9 +164,60 @@ int_vertical_sync:
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sts line, r30
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sts line + 1, r31
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; check button
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in r31, IO(PINB)
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andi r31, 0x08
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breq check_if_released
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ldi r31, 1
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sts button_next_image, r31
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jmp int_vertical_sync_end
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check_if_released:
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lds r31, button_next_image
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cpi r31, 1
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brne int_vertical_sync_end
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; here button is released
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lds r31, show_image
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cpi r31, 1
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breq 1f
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ldi r31, 1
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sts show_image, r31
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rjmp 2f
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1:
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ldi r31, 0
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sts show_image, r31
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rjmp end_button_release
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2:
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; show image
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ldi zl, pm_lo8(line_jump_table_0)
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ldi zh, pm_hi8(line_jump_table_0)
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clr yl
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lds yh, image
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inc yh
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sts image, yh
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add zh, yh
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add zh, yh
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sts current_jump_table, zl
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sts current_jump_table + 1, zh
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ldi r31, 0x01
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sts show_image, r31
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end_button_release:
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clr yl
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sts button_next_image, yl
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int_vertical_sync_end:
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pop r30
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pop r31
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pop yh
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pop yl
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pop zh
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pop zl
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out IO(SREG), r31
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pop r31
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reti
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