snark13
737c974400
- Split tests/ (libc feature tests) and examples/ (real apps); shared
app.mk in repo root, was examples/example.mk
- libc/io/* split into libc/{conio,env,errno,file,mouse,string,sys,
time,video}/ — clearer module boundaries
- New examples/mdview/: markdown viewer (Phases 1-5 + light nested
lists). Headers (H1-H4), HR, ulist/olist/quote with nesting via
leading spaces, fenced code blocks, inline emphasis (bold/italic/
underscore/code), wrap/unwrap mode with soft wrap (F2), horizontal
pan (← →) with '>' truncation indicator
- libc additions: scroll() in conio (ESTEX SCROLL), strlwr/strupr,
gets() test
- Makefile updates across tests/ for the new shared app.mk path
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/*
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* puts — C99 fputs(s, stdout) + '\n'.
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*
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* Turbo-C convention: stdio's `puts` is the FAST path with NO attribute
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* control — backed by ESTEX PCHARS ($5C). Cursor cell attributes are
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* whatever ESTEX has cached (usually the shell's default).
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*
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* For coloured output use cputs() / cprintf() from <conio.h>.
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*
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* Implementation notes:
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* - PCHARS does NOT translate '\n' to CR LF, so we copy the string
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* into a static buffer expanding each '\n' to CR LF, then append
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* the trailing CR LF before the NUL.
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* - Avoid trailing PUTCHAR after PCHARS — empirically that sometimes
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* drops the next char. Embed the line ending inside the PCHARS
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* buffer instead.
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*/
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#include <stdio.h>
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#include <stdint.h>
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static void pchars(const char *s) __naked
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{
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(void)s;
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__asm
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push ix
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ld c, #0x5C
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rst #0x10
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pop ix
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ret
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__endasm;
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}
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char puts(const char *s) __naked
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{
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(void)s;
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__asm
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puts_:
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ld a, (hl)
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or a
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jr z, fin_
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push hl
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ld l, a
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ld h, #0
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call _putchar
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pop hl
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inc hl
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jp puts_
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;
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fin_:
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ld l, #0x0A
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ld h, #0
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call _putchar
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ret
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__endasm;
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}
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