How do I install the Cpu Z180 skill?

Run npx skillmds@latest add z88dk/cpu-z180 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 Cpu Z180 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 Cpu Z180?

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 Cpu Z180 free to use?

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

Who published Cpu Z180?

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

Cpu Z180 by z88dk — Agent Skill

Name: Cpu Z180
Author: z88dk

File contents

CPU — Z180

Z80-compatible with extras (e.g. mlt). Used by +z180, +yaz180, +scz180, and related products.

Agent facts

Topic	Detail
ticks	`z88dk-ticks -mz180` (eZ80 Z80-mode: `-mez80_z80`)
HW mul	`mlt bc/de/hl/sp` = `ED 4C/5C/6C/7C` — same encodings on eZ80 Z80-mode. Helps mul/inv-heavy float; restoring div does not use it
math32	`math32_z180.lib`; eZ80 Z80-mode product is `math32_ez80_z80.lib` (`newlibfiles_ez80_z80.lst` → same Z180 `mlt` helpers)
CPU define	`-mz180` → `__CPU_Z180__`. `-mez80_z80` → `__CPU_EZ80_Z80__` (not `__CPU_EZ80__`; that is ADL `-mez80`)
Targets	See `target/z180`, `target/yaz180`, `target/scz180`; classic `+test -clib=ez80_z80` for eZ80 Z80-mode

Synthetic opcodes (z80asm)

Same word-copy set as Z80 (normal mode): any of bc / de / hl ← any of those pairs (ld de,hl, ld bc,hl, ld hl,bc, …) = two 8-bit loads. Prefer to park/restore a pair instead of swap chains. Not af / sp.

Strict forbids free synthetics — tool-z80asm.

Assembler capability (last resort)

Fixtures under src/z80asm/dev/cpu/ answer: does z80asm accept this source line for this CPU, and what encoding does it emit?

File	Meaning
`cpu_test_<cpu>_ok.asm`	Assembles successfully; comment after `;` is expected encoding
`cpu_test_<cpu>_err.asm`	Must fail (`; Error`)
`_strict_`	Strict mode: synthetics forbidden (real ops / accepted aliases only)

ok is not always one native chip opcode (normal mode may allow synthetics or CD @__z80asm__… helpers).

8080/8085 only: z80asm may accept Intel spellings for external-code compatibility (see fixtures). z88dk writes Zilog only everywhere.

How to read lines, map -m → filename, and rg without loading huge files: skill tool-z80asm.

library-math32, tool-ticks

---name: cpu-z180description: Z180 notes for z88dk: mlt multiply, math32_z180, eZ80 Z80-mode mlt share, ticks -mz180 / -mez80_z80, ASCI/IO context for yaz180/scz180 targets. Use when writing or measuring Z180 or eZ80-Z80-mode float/mul code.---# CPU — Z180Z80-compatible with extras (e.g. **`mlt`**). Used by `+z180`, `+yaz180`, `+scz180`, and related products.## Agent facts| Topic | Detail ||-------|--------|| ticks | `z88dk-ticks -mz180` (eZ80 Z80-mode: `-mez80_z80`) || HW mul | `mlt bc/de/hl/sp` = `ED 4C/5C/6C/7C` — same encodings on **eZ80 Z80-mode**. Helps mul/inv-heavy float; restoring div does not use it || math32 | `math32_z180.lib`; eZ80 Z80-mode product is **`math32_ez80_z80.lib`** (`newlibfiles_ez80_z80.lst` → same Z180 `mlt` helpers) || CPU define | `-mz180` → `__CPU_Z180__`. `-mez80_z80` → **`__CPU_EZ80_Z80__`** (not `__CPU_EZ80__`; that is ADL `-mez80`) || Targets | See `target/z180`, `target/yaz180`, `target/scz180`; classic `+test -clib=ez80_z80` for eZ80 Z80-mode |## Synthetic opcodes (z80asm)Same **word-copy** set as Z80 (normal mode): any of **`bc` / `de` / `hl`** ← anyof those pairs (`ld de,hl`, `ld bc,hl`, `ld hl,bc`, …) = two 8-bit loads.Prefer to park/restore a pair instead of swap chains. **Not** **`af`** / **`sp`**.Strict forbids free synthetics — **`tool-z80asm`**.## Assembler capability (last resort)Fixtures under `src/z80asm/dev/cpu/` answer: does **z80asm** accept this **source line** for this CPU, and what encoding does it emit?| File | Meaning ||------|---------|| `cpu_test_<cpu>_ok.asm` | Assembles successfully; comment after `;` is expected encoding || `cpu_test_<cpu>_err.asm` | Must fail (`; Error`) || `*_strict_*` | **Strict mode: synthetics forbidden** (real ops / accepted aliases only) |**ok is not always one native chip opcode** (normal mode may allow synthetics or `CD @__z80asm__…` helpers).**8080/8085 only:** z80asm may accept **Intel** spellings for **external-code compatibility** (see fixtures). **z88dk writes Zilog only** everywhere.How to read lines, map `-m` → filename, and `rg` without loading huge files: skill **`tool-z80asm`**.## Related- `library-math32`, `tool-ticks`

Frequently asked questions

Cpu Z180