Module debug_overlay 

Statics

VGA_DEBUG_COL 🔒

Current cursor column for the live debug writer (0-based character column).

VGA_DEBUG_MAX_COL 🔒

Maximum columns available on the current framebuffer (cached).

VGA_DEBUG_MAX_ROW 🔒

Maximum rows available on the current framebuffer (cached).

VGA_DEBUG_ROW 🔒

Current cursor row for the live debug writer (0-based character row).

Functions

vga_debug_clear_cell 🔒 ^⚠

Clear a single 8×16 character cell with the background colour.

vga_debug_draw_glyph 🔒 ^⚠

Draw a single 8×16 character from the panic font.

vga_debug_fill_line 🔒 ^⚠

Fill a single text line (16 pixel rows) with a solid colour. max_col is the number of character columns (each 8px wide).

vga_debug_init

Initialise or re-initialise the live debug writer’s geometry. Called automatically from vga::init().

vga_debug_scroll 🔒

Scroll the live debug area up by one line.

vga_debug_write

Write a string directly to the VGA framebuffer in real time.

vga_debug_writeln

Write a newline-terminated line to the live VGA debug output.