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Is Compiler Sccz80 free to use?

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Who published Compiler Sccz80?

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

Compiler Sccz80 by z88dk — Agent Skill

Name: Compiler Sccz80
Author: z88dk

File contents

Compiler — sccz80

Binary: z88dk-sccz80 (normally via zcc). Source: src/sccz80/.

Agent facts

Topic	Detail
Default	Many classic targets use sccz80
Peephole	`z88dk-copt` + `lib/z80rules.` on compiler output only*
Runtime	`libsrc/l/sccz80/` per CPU (`5-z80`, `7-8085`, `8-8080`, …)
Inline ints	May load `z80rules.8` — see `tool-copt`
Float rewrite	sccz80 may rewrite `1.0f/x` → `inv(x)`; force runtime numerator to hit `fsdiv`

Condensed wiki

Tool — z88dk-sccz80

Native C compiler. Normally invoked through zcc, not directly.

When to use direct invocation

Rare. Prefer zcc +target …. Use the binary directly only when debugging the compiler front end.

Select via zcc

Default for most classic CLIBs and for -clib=new. See Compilers.

Help

Small-C/Plus - z80 Crosscompiler   Version: 25141-6b30e0885e-20260716
(C) 1980-2025 Cain, Van Zandt, Hendrix, Yorston, z88dk
Usage: z88dk-sccz80 [flags] [file]
   -v -verbose                  Be verbose
   -h -help                     Show this help page
   -o -output                   Set the output filename

CPU Targetting:
      -m8080                    Generate output for the i8080
      -m8085                    Generate output for the i8085
      -mez80_z80                Generate output for the ez80 in z80 mode
      -mz80                     Generate output for the z80
      -mz80n                    Generate output for the z80n
      -mz180                    Generate output for the z180
      -mr2ka                    Generate output for the Rabbit 2000A
      -mr3k                     Generate output for the Rabbit 3000
      -mr4k                     Generate output for the Rabbit 4000
      -mr6k                     Generate output for the Rabbit 4000
      -mgbz80                   Generate output for the Gameboy CPU
      -mkc160                   Generate output for the KC160

Code generation options
      -unsigned                 Make all types unsigned
      --disable-builtins        Disable builtin functions
      -params-offset            =<num> Base offset for the function parameters (default: 2)
      -doublestr                Store FP constants as strings
      -math-z88                 (deprecated) Make FP constants match z88
      -banked-style=regular     Use regular banked calling style
      -banked-style=ti          Use ticalc banked calling style
      -fp-exponent-bias         =<num> FP exponent bias (default: 128)
      -fp-mantissa-size         =<num> FP mantissa size (default: 5 bytes)
      -fp-mode=z80              Use 48 bit doubles
      -fp-mode=ieee             Use 32 bit IEEE doubles
      -fp-mode=mbf32            Use 32 bit Microsoft Binary format
      -fp-mode=mbf40            Use 40 bit Microsoft binary format
      -fp-mode=mbf64            Use 64 bit Microsoft binary format
      -fp-mode=z88              Use 40 bit z88 doubles
      -fp-mode=am9511           Use 32 bit AM9511 doubles
      -noaltreg                 Try not to use the alternative register set
      -standard-escape-chars    Use standard mappings for \r and \n
      -set-r2l-by-default       Use r->l calling convention by default
      --constseg                =<name> Set the const section name
      --codeseg                 =<name> Set the code section name
      --bssseg                  =<name> Set the bss section name
      --dataseg                 =<name> Set the data section name
      --

… (more in wiki page)


## Related

- `tool-copt`, `tool-zcc`, `library-classic`, `cpu-8085`

---name: compiler-sccz80description: sccz80 classic C compiler for z88dk: calling conventions, copt peephole path, 8080/8085/z80 runtime under libsrc/l/sccz80. Use when debugging sccz80 codegen or classic -compiler=sccz80 builds.---# Compiler — sccz80Binary: `z88dk-sccz80` (normally via `zcc`). Source: `src/sccz80/`.## Agent facts| Topic | Detail ||-------|--------|| Default | Many classic targets use sccz80 || Peephole | `z88dk-copt` + `lib/z80rules.*` on **compiler output only** || Runtime | `libsrc/l/sccz80/` per CPU (`5-z80`, `7-8085`, `8-8080`, …) || Inline ints | May load `z80rules.8` — see `tool-copt` || Float rewrite | sccz80 may rewrite `1.0f/x` → `inv(x)`; force runtime numerator to hit `fsdiv` |## Condensed wiki# Tool — z88dk-sccz80Native C compiler. Normally invoked through **zcc**, not directly.## When to use direct invocationRare. Prefer `zcc +target …`. Use the binary directly only when debugging the compiler front end.## Select via zccDefault for most classic CLIBs and for `-clib=new`. See [Compilers](Compilers).## Help```textSmall-C/Plus - z80 Crosscompiler Version: 25141-6b30e0885e-20260716(C) 1980-2025 Cain, Van Zandt, Hendrix, Yorston, z88dkUsage: z88dk-sccz80 [flags] [file] -v -verbose Be verbose -h -help Show this help page -o -output Set the output filenameCPU Targetting: -m8080 Generate output for the i8080 -m8085 Generate output for the i8085 -mez80_z80 Generate output for the ez80 in z80 mode -mz80 Generate output for the z80 -mz80n Generate output for the z80n -mz180 Generate output for the z180 -mr2ka Generate output for the Rabbit 2000A -mr3k Generate output for the Rabbit 3000 -mr4k Generate output for the Rabbit 4000 -mr6k Generate output for the Rabbit 4000 -mgbz80 Generate output for the Gameboy CPU -mkc160 Generate output for the KC160Code generation options -unsigned Make all types unsigned --disable-builtins Disable builtin functions -params-offset =<num> Base offset for the function parameters (default: 2) -doublestr Store FP constants as strings -math-z88 (deprecated) Make FP constants match z88 -banked-style=regular Use regular banked calling style -banked-style=ti Use ticalc banked calling style -fp-exponent-bias =<num> FP exponent bias (default: 128) -fp-mantissa-size =<num> FP mantissa size (default: 5 bytes) -fp-mode=z80 Use 48 bit doubles -fp-mode=ieee Use 32 bit IEEE doubles -fp-mode=mbf32 Use 32 bit Microsoft Binary format -fp-mode=mbf40 Use 40 bit Microsoft binary format -fp-mode=mbf64 Use 64 bit Microsoft binary format -fp-mode=z88 Use 40 bit z88 doubles -fp-mode=am9511 Use 32 bit AM9511 doubles -noaltreg Try not to use the alternative register set -standard-escape-chars Use standard mappings for \r and \n -set-r2l-by-default Use r->l calling convention by default --constseg =<name> Set the const section name --codeseg =<name> Set the code section name --bssseg =<name> Set the bss section name --dataseg =<name> Set the data section name --… (more in wiki page)## Related- `tool-copt`, `tool-zcc`, `library-classic`, `cpu-8085`

Frequently asked questions

Compiler Sccz80