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58 lines
875 B
58 lines
875 B
#include "ax8052.h"
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#include "libmftypes.h"
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#include "libmfradio.h"
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#if defined(SDCC)
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__reentrantb uint32_t radio_read32(uint16_t addr) __reentrant __naked
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{
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addr;
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__asm;
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mov a,dph
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anl a,#0x0F
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orl a,#(AX8052_RADIOBASE >> 8)
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mov dph,a
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mov a,_IE
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rlc a
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clr _EA
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mov a,_RADIOACC
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mov b,a
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anl a,#0xFC
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orl a,#0x03
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mov _RADIOACC,a
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movx a,@dptr
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mov _RADIOACC,b
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mov b,_RADIODATA2
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mov dph,_RADIODATA1
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mov dpl,_RADIODATA0
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mov _EA,c
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ret
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__endasm;
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}
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#else
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__reentrantb uint32_t radio_read32(uint16_t addr) __reentrant
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{
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uint8_t iesave, racc;
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uint32_t r;
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addr &= 0xFFF;
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addr |= AX8052_RADIOBASE;
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iesave = IE & 0x80;
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EA = 0;
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racc = RADIOACC;
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RADIOACC = (racc & 0xFC) | 0x03;
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r = *(uint8_t __xdata *)addr;
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r <<= 8;
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r |= RADIODATA2;
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r <<= 8;
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r |= RADIODATA1;
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r <<= 8;
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r |= RADIODATA0;
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RADIOACC = racc;
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IE |= iesave;
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return r;
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}
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#endif
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