34 lines
448 B
C
34 lines
448 B
C
#include "mc8051fun.h"
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#include "bcd.h"
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#pragma disable_warning 59 // Disable "must return a value" warning
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uint8_t long_add(__idata uint8_t *v1, __idata uint8_t *v2,uint8_t len) __reentrant
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{
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(void)v1; (void)v2; (void)len;
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__asm
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mov a,_bp
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add a,#0xfd
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mov sp,a
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pop ar1
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pop ar7
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mov ar0,dpl
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clr c
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001$:
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mov a,@r0
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addc a,@r1
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mov @r0,a
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inc r0
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inc r1
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djnz r7,001$
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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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mov sp,_bp
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__endasm;
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}
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