How do I install the Target Sms skill?

Run npx skillmds@latest add z88dk/target-sms in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Target Sms safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Target Sms?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Target Sms free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Target Sms?

z88dk (@z88dk) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Target Sms by z88dk — Agent Skill

Name: Target Sms
Author: z88dk

File contents

Target — SMS / Game Gear (`+sms`)


Config	`lib/config/sms.cfg`
Trees	classic `libsrc/target/sms/`; newlib `libsrc/newlib/target/sms/`
Headers	`include/arch/sms` (classic include path in cfg)
Wiki	`wiki/platforms/Platform---SMS.md`
Help	`zcc +sms -h`

Defaults

Item	Value
CLIB	classic `default` → `-lsms_clib -lndos`
SUBTYPE	`default` → `-Cz+sms` → `.sms`
Defines	`__SMS`, `__Z80`

Bare zcc +sms … is classic.

Classic vs newlib

World	Select	Link / CRT
Classic	default	`-lsms_clib`, classic `sms_crt0`
Newlib	`-clib=new` / `sdcc_ix` / `sdcc_iy`	`-lsms`, `sms_crt.asm.m4`

Wiki smoke note: newlib CLIBs exist; minimal printf may not link (_stdout) on a bare program — use newlib SMS examples / CRT that instantiates stdio, not assume classic drop-in.

Subtypes

Subtype	Role
`default`	Master System ROM via `+sms`
`gamegear`	`-Cz+sms -Cz-e -Cz.gg` + `__GAMEGEAR__` → `.gg`
`none`	no packaging

Aliases: --smslib, --smslib-md (pragma defines for SMSlib-style builds).

Hardware (agent-relevant)

Item	Spec
CPU	Z80 ~3.58 MHz
RAM	8 KiB
Video	VDP (TMS-class), 16 KiB VRAM
Sound	SN76489 PSG
Classic lib	gencon / hires gfx / PSG / joystick / interrupts (see wiki checklist)
File I/O	generally no classic disk stack

SMSlib notes: libsrc/target/sms/SMSlib/README.md when using that stack.

Recipes

zcc +sms -vn game.c -o game -create-app           # .sms
zcc +sms -subtype=gamegear -create-app -vn …
zcc +sms -clib=sdcc_iy -create-app …              # newlib; watch CRT/stdio

Agent notes

Not Spectrum — no TAP/NEX recipes.
Prefer classic for console/graphics samples under examples/sms/.
Related: cpu-z80, library-classic, tool-appmake.

---name: target-smsdescription: z88dk +sms only: Sega Master System / Game Gear. Classic default, newlib CLIBs, VDP/PSG console path, .sms/.gg packaging. Use when the task is explicitly +sms / Master System / Game Gear.---# Target — SMS / Game Gear (`+sms`)| | ||--|--|| Config | `lib/config/sms.cfg` || Trees | classic `libsrc/target/sms/`; newlib `libsrc/newlib/target/sms/` || Headers | `include/arch/sms` (classic include path in cfg) || Wiki | `wiki/platforms/Platform---SMS.md` || Help | `zcc +sms -h` |## Defaults| Item | Value ||------|--------|| CLIB | classic **`default`** → `-lsms_clib -lndos` || SUBTYPE | **`default`** → `-Cz+sms` → **`.sms`** || Defines | `__SMS`, `__Z80` |Bare `zcc +sms …` is **classic**.## Classic vs newlib| World | Select | Link / CRT ||-------|--------|------------|| Classic | default | `-lsms_clib`, classic `sms_crt0` || Newlib | `-clib=new` / `sdcc_ix` / `sdcc_iy` | `-lsms`, `sms_crt.asm.m4` |Wiki smoke note: newlib CLIBs exist; **minimal `printf` may not link** (`_stdout`) on a bare program — use newlib SMS examples / CRT that instantiates stdio, not assume classic drop-in.## Subtypes| Subtype | Role ||---------|------|| `default` | Master System ROM via `+sms` || **`gamegear`** | `-Cz+sms -Cz-e -Cz.gg` + `__GAMEGEAR__` → **`.gg`** || `none` | no packaging |Aliases: `--smslib`, `--smslib-md` (pragma defines for SMSlib-style builds).## Hardware (agent-relevant)| Item | Spec ||------|------|| CPU | Z80 ~3.58 MHz || RAM | 8 KiB || Video | VDP (TMS-class), 16 KiB VRAM || Sound | SN76489 PSG || Classic lib | gencon / hires gfx / PSG / joystick / interrupts (see wiki checklist) || File I/O | generally **no** classic disk stack |SMSlib notes: `libsrc/target/sms/SMSlib/README.md` when using that stack.## Recipes```textzcc +sms -vn game.c -o game -create-app # .smszcc +sms -subtype=gamegear -create-app -vn …zcc +sms -clib=sdcc_iy -create-app … # newlib; watch CRT/stdio```## Agent notes1. Not Spectrum — no TAP/NEX recipes. 2. Prefer classic for console/graphics samples under `examples/sms/`. 3. Related: `cpu-z80`, `library-classic`, `tool-appmake`.

Frequently asked questions

Target Sms