29 lines
408 B
C
29 lines
408 B
C
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#include "mc8051fun.h"
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uint8_t long_mul(__idata uint8_t *v1, __idata uint8_t *v2,uint8_t len, __idata uint8_t *result) __reentrant
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{
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(void)v1; (void)v2; (void)len,(void)result;
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__asm
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mov a,_bp
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add a,#0xfd
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mov r0,a
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mov a,@r0 ; *v2
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dec r0
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mov r1,a
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mov a,@r0 ; len
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mov r7,a
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dec r0
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mov a,@r0 ; result
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mov r2,a
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mov r0,dpl
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lcall long_mul
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mov dpl,#0x00
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jnc $002
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inc dpl
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$002:
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__endasm;
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}
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