164 lines
2.8 KiB
Plaintext
164 lines
2.8 KiB
Plaintext
// Change and add to this as you see fit.
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// The STD and even syscalls are still in flux.
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// Do your best to avoid adding bad design.
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// Use std abstractions if they exist like logging functionality
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import "sysdata/test-programs/hblib/std" as std;
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fn rect(reg_x, reg_y, w, h, color) {
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li64(r3, 0);
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li64(r4, 0);
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li64(r5, w);
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li64(r6, h);
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let start_y = label();
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let start_x = label();
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add64(r9, r3, reg_x);
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add64(r10, r4, reg_y);
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pixel(r9, r10, color);
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li64(r1, 1);
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add64(r3, r3, r1);
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jltu(r3, r5, start_x);
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li64(r1, 1);
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add64(r4, r4, r1);
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li64(r3, 0);
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jltu(r4, r6, start_y);
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}
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fn pixel(reg_x, reg_y, color) {
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let BUFFER = 0xFFFF8000C0000000;
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let WIDTH = 1024;
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// r1 = y * WIDTH
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li64(r1, WIDTH);
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mul64(r1, reg_y, r1);
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// r2 = x + r2
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add64(r2, reg_x, r1);
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// r2 = r2 * 4
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li64(r1, 4);
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mul64(r2, r2, r1);
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// store pixel value
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li64(r1, color);
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st(r1, r2, BUFFER, 4);
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}
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fn clear() {
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// rect(r0, r0, 1024, 768, 0xff222222);
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let BUFFER = 0xFFFF8000C0000000;
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// on arm the FB is at 0xFFFF8000BC430000
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// FIXME: get the framebuffer pointer from the starting arguments
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li64(r1, 0xff222222);
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li64(r2, 0);
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li64(r3, 1);
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li64(r4, 1024 * 768);
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li64(r5, 4);
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let start = label();
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mul64(r6, r2, r5);
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st(r1, r6, BUFFER, 4);
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add64(r2, r2, r3);
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jltu(r2, r4, start);
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}
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// Define main
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fn main(){
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// Log the arguments
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{
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cp(r3, r1);
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cp(r4, r2);
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// log level
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li8(r6, 2);
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add64(r5, r3, r4);
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li64(r7, 1);
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st(r6, r5, 0, 1);
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add64(r4, r4, r7);
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li64(r1, 3);
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li64(r2, 1);
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eca();
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// Zero out all used registers
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li64(r1, 0);
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li64(r2, 0);
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li64(r3, 0);
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li64(r4, 0);
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li64(r5, 0);
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li64(r6, 0);
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li64(r7, 0);
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}
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std::Info("Starting the limine framebuffer driver.");
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// un();
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li64(r100, 300);
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li64(r101, 300);
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li64(r102, 1);
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li64(r103, 1);
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li64(r104, 1024 - 20);
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li64(r105, 768 - 20);
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li64(r106, 0);
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li64(r107, 0);
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clear();
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let start = label();
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rect(r100, r101, 20, 20, 0xff222222);
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//clear();
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add64(r100, r100, r102);
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add64(r101, r101, r103);
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let after_x_right = declabel();
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jltu(r100, r104, after_x_right);
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li64(r102, -1);
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here(after_x_right);
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let after_x_left = declabel();
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jgtu(r100, r106, after_x_left);
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li64(r102, 1);
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li64(r100, 0);
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here(after_x_left);
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let after_y_right = declabel();
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jltu(r101, r105, after_y_right);
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li64(r103, -1);
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here(after_y_right);
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let after_y_left = declabel();
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jgtu(r101, r107, after_y_left);
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li64(r103, 1);
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li64(r101, 0);
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here(after_y_left);
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rect(r100, r101, 20, 20, 0xffffffff);
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li64(r200, 0);
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li64(r201, 1);
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li64(r202, 10000);
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let wait = label();
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add64(r200, r200, r201);
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jltu(r200, r202, wait);
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jeq(r0, r0, start);
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//jmp(start);
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std::Info("done");
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// Terminate execution.
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tx();
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}
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main();
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