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Initial commit. Harptool, some docs, and the initial logo attempt.

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git-svn-id: http://www.cdkersey.com/harp/harptool@1 0246edb2-e076-4747-b392-db732a341fa2
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chad
2011-06-13 20:27:18 +00:00
commit 25377e4c03
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src/test/lib.s Normal file
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/*******************************************************************************
HARPtools by Chad D. Kersey, Summer 2011
********************************************************************************
Sample HARP assmebly programs. These should work on anything from a 4x up.
*******************************************************************************/
/* Library: print decimals and strings! */
.perm x
.global
printdec: ldi %r8, #1;
shli %r8, %r8, (__WORD*8 - 1);
and %r6, %r8, %r7;
rtop @p0, %r6;
@p0 ? ldi %r6, #0x2d;
@p0 ? st %r6, %r8, #0;
@p0 ? neg %r7, %r7;
printdec_l1: modi %r6, %r7, #10;
divi %r7, %r7, #10;
addi %r6, %r6, #0x30;
st %r6, %r9, digstack;
addi %r9, %r9, __WORD;
rtop @p0, %r7;
@p0 ? jmpi printdec_l1;
printdec_l2: subi %r9, %r9, __WORD;
ld %r6, %r9, digstack;
st %r6, %r8, #0;
rtop @p0, %r9;
@p0 ? jmpi printdec_l2;
ldi %r6, #0x0a;
st %r6, %r8, #0;
jmpr %r5
.global
puts: ldi %r8, #1;
shli %r8, %r8, (__WORD*8 - 1);
puts_l: ld %r6, %r7, #0;
andi %r6, %r6, #0xff;
rtop @p0, %r6;
notp @p0, @p0;
@p0 ? jmpi puts_end;
st %r6, %r8, #0;
addi %r7, %r7, #1;
jmpi puts_l;
puts_end: jmpr %r5
.perm rw
.word digstack 0
.word 9