Added/updated components to be isolated rectangles.

2026-06-17 07:48:07 +02:00
parent cccc4fb06c
commit 6605d86916
6 changed files with 489 additions and 49 deletions
@@ -0,0 +1,126 @@
+package simulator
+
+import "core:fmt"
+import "core:strings"
+import rl "vendor:raylib"
+
+MEM_INDICATOR_W   :: 14
+MEM_ADDRESS_W     :: 72
+MEM_ROW_H         :: 20
+MEM_HEADER_H      :: 24
+MEM_BYTES_PER_ROW :: 16
+MEM_TOTAL_ROWS    :: 256
+MEM_FONT_ROWS     :: 5
+MEM_ROM_START     :: 512
+MEM_VIRTUAL_ROWS  :: MEM_FONT_ROWS + 1 + (256 - 32)
+
+MEM_COL_LABELS := [16]string{"0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F"}
+
+byte_col_w :: proc(rect: rl.Rectangle) -> f32 {
+    used := f32(MEM_INDICATOR_W + MEM_ADDRESS_W + 12)
+    return (rect.width - used) / 16
+}
+
+gui_tab_memory :: proc(rect: rl.Rectangle, sim: ^Simulator) {
+    rl.DrawRectangleRec(rect, rl.DARKGRAY)
+
+    // Header background
+    rl.DrawRectangle(i32(rect.x), i32(rect.y), i32(rect.width), MEM_HEADER_H, rl.BLACK)
+
+    // Header: Address label
+    rl.DrawTextEx(sim.font, "Address", {rect.x + MEM_INDICATOR_W, rect.y + 4}, 16, 1, rl.GRAY)
+
+    // Header: column labels 0-F
+    col_w := byte_col_w(rect)
+    for col in 0..<16 {
+        x     := rect.x + MEM_INDICATOR_W + MEM_ADDRESS_W + f32(col) * col_w
+        label := strings.clone_to_cstring(MEM_COL_LABELS[col], context.temp_allocator)
+        rl.DrawTextEx(sim.font, label, {x, rect.y + 4}, 16, 1, rl.GRAY)
+    }
+
+    // Header separator
+    rl.DrawLine(
+        i32(rect.x), i32(rect.y + MEM_HEADER_H),
+        i32(rect.x + rect.width), i32(rect.y + MEM_HEADER_H),
+        rl.GRAY,
+    )
+
+    // Scroll panel area (below header)
+    panel_rect := rl.Rectangle{
+        rect.x,
+        rect.y + MEM_HEADER_H,
+        rect.width,
+        rect.height - MEM_HEADER_H,
+    }
+
+    content_rect := rl.Rectangle{
+        0, 0,
+        rect.width - 12,
+        f32(MEM_VIRTUAL_ROWS) * MEM_ROW_H,
+    }
+
+    view : rl.Rectangle
+    rl.GuiScrollPanel(panel_rect, nil, content_rect, &sim.mem_scroll, &view)
+
+    rl.BeginScissorMode(i32(view.x), i32(view.y), i32(view.width), i32(view.height))
+
+    draw_row := 0
+
+    // --- Font rows (0x000 - 0x04F) ---
+    for row in 0..<MEM_FONT_ROWS {
+        addr  := row * MEM_BYTES_PER_ROW
+        row_y := panel_rect.y + f32(draw_row) * MEM_ROW_H + sim.mem_scroll.y
+        draw_memory_row(rect, sim, draw_row, addr, row_y)
+        draw_row += 1
+    }
+
+    // --- Divider ---
+    divider_y := panel_rect.y + f32(draw_row) * MEM_ROW_H + sim.mem_scroll.y
+    rl.DrawRectangle(i32(rect.x), i32(divider_y), i32(rect.width), MEM_ROW_H, rl.ColorAlpha(rl.BLACK, 0.4))
+    rl.DrawTextEx(
+        sim.font,
+        "---- reserved (0x0050 - 0x01FF) ----",
+        {rect.x + MEM_INDICATOR_W, divider_y + 2},
+        16, 1, rl.DARKGRAY,
+    )
+    draw_row += 1
+
+    // --- ROM rows (0x200 onwards) ---
+    for i := 0; MEM_ROM_START + i * MEM_BYTES_PER_ROW < 4096; i += 1 {
+        addr  := MEM_ROM_START + i * MEM_BYTES_PER_ROW
+        row_y := panel_rect.y + f32(draw_row) * MEM_ROW_H + sim.mem_scroll.y
+        draw_memory_row(rect, sim, draw_row, addr, row_y)
+        draw_row += 1
+    }
+
+    rl.EndScissorMode()
+}
+
+draw_memory_row :: proc(rect: rl.Rectangle, sim: ^Simulator, visual_row: int, addr: int, row_y: f32) {
+    col_w := byte_col_w(rect)
+
+    if visual_row % 2 == 0 {
+        rl.DrawRectangle(i32(rect.x), i32(row_y), i32(rect.width), MEM_ROW_H, rl.ColorAlpha(rl.BLACK, 0.2))
+    }
+
+    addr_str := fmt.tprintf("%04X", addr)
+    rl.DrawTextEx(
+        sim.font,
+        strings.clone_to_cstring(addr_str, context.temp_allocator),
+        {rect.x + MEM_INDICATOR_W, row_y + 2},
+        16, 1, rl.RAYWHITE,
+    )
+
+    for col in 0..<16 {
+        byte_val := sim.machine.memory[addr + col]
+        byte_str := fmt.tprintf("%02X", byte_val)
+        x        := rect.x + MEM_INDICATOR_W + MEM_ADDRESS_W + f32(col) * col_w
+        color    := rl.RAYWHITE if byte_val != 0 else rl.GRAY
+        rl.DrawTextEx(
+            sim.font,
+            strings.clone_to_cstring(byte_str, context.temp_allocator),
+            {x, row_y + 2},
+            16, 1, color,
+        )
+    }
+}