afe15f4ff1
git-svn-id: http://www.cdkersey.com/harp/harptool@116 0246edb2-e076-4747-b392-db732a341fa2
51 lines
1.5 KiB
ArmAsm
51 lines
1.5 KiB
ArmAsm
/*******************************************************************************
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HARPtools by Chad D. Kersey, Summer 2011
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********************************************************************************
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Sample HARP assmebly programs. These should work on anything from a 4x up.
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*******************************************************************************/
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/* Library: print decimals and strings! */
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.perm x
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.global
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printdec: ldi %r8, #1;
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shli %r8, %r8, (__WORD*8 - 1);
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and %r6, %r8, %r7;
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rtop @p0, %r6;
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@p0 ? ldi %r6, #0x2d;
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@p0 ? st %r6, %r8, #0;
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@p0 ? neg %r7, %r7;
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ldi %r9, #0;
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printdec_l1: modi %r6, %r7, #10;
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divi %r7, %r7, #10;
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addi %r6, %r6, #0x30;
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st %r6, %r9, digstack;
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addi %r9, %r9, __WORD;
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rtop @p0, %r7;
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@p0 ? jmpi printdec_l1;
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printdec_l2: subi %r9, %r9, __WORD;
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ld %r6, %r9, digstack;
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st %r6, %r8, #0;
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rtop @p0, %r9;
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@p0 ? jmpi printdec_l2;
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ldi %r6, #0x0a;
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st %r6, %r8, #0;
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jmpr %r5
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.global
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puts: ldi %r8, #1;
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shli %r8, %r8, (__WORD*8 - 1);
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puts_l: ld %r6, %r7, #0;
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andi %r6, %r6, #0xff;
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rtop @p0, %r6;
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notp @p0, @p0;
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@p0 ? jmpi puts_end;
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st %r6, %r8, #0;
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addi %r7, %r7, #1;
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jmpi puts_l;
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puts_end: jmpr %r5
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.perm rwx
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digstack: .space 10
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