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https://gitlab.os-k.eu/os-k-team/kvisc.git
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52 lines
603 B
Plaintext
52 lines
603 B
Plaintext
; The OS/K Team licenses this file to you under the MIT license.
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; See the LICENSE file in the project root for more information.
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;
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; int putc(int ch)
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;
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putc:
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prn ax0
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xor rax, rax
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ret
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;
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; int printf(const char *fmt, ...)
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;
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printf:
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mov ax2, ax0
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mov ax0, putc
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mov ax1, STRLEN_MAX
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lea ax3, b[rsp+8]
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jmp doprnt
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;
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; Print a string
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;
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print:
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mov rcx, STRLEN_MAX
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.1:
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test b[ax0], b[ax0]
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j.z .2
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prn b[ax0]
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inc ax0
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loop .1
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.2:
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ret
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;
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; Print exactly ax1 characters
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;
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print_n:
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mov rcx, ax1
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.1:
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prn b[ax0]
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inc ax0
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loop .1
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ret
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