libc: add bios/text.h BIOS text-output API

Direct __naked z80 wrappers over BIOS LP_PRINT_*/LP_SET_PLACE/LP_GET_PLACE (RST 8, opcodes 081h-08Eh) for fast text rendering — a single BIOS call replaces a wrchar() loop for constant-attribute/constant-character runs. Covered by tests/bios_text. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-23 17:06:13 +03:00
parent bd116d7361
commit c9d5ea35a4
5 changed files with 525 additions and 0 deletions
@@ -0,0 +1,5 @@
+# Build bios_text.exe — exercises <bios/text.h>, TINY memory mode.
+
+PROJ_ROOT := $(abspath $(CURDIR)/../..)
+EXAMPLE   := bios_text
+include $(PROJ_ROOT)/app.mk