diff options
| author | PikalaxALT <pikalaxalt@gmail.com> | 2017-12-15 09:38:53 -0500 |
|---|---|---|
| committer | PikalaxALT <pikalaxalt@gmail.com> | 2017-12-15 09:39:34 -0500 |
| commit | f95a4a932476be2ba99e2fd081e8d2bc6ea12813 (patch) | |
| tree | 75f67192cb2d7b7b575c94edda318e475239b63c /newlib/libc/machine/w65/smulhi3.s | |
| parent | f60aca96985e68c7d8a52eb7bc955fb80e132f73 (diff) | |
Import newlib and create makefile
Diffstat (limited to 'newlib/libc/machine/w65/smulhi3.s')
| -rw-r--r-- | newlib/libc/machine/w65/smulhi3.s | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/newlib/libc/machine/w65/smulhi3.s b/newlib/libc/machine/w65/smulhi3.s new file mode 100644 index 0000000..6ccbfba --- /dev/null +++ b/newlib/libc/machine/w65/smulhi3.s @@ -0,0 +1,20 @@ + .global ___smulhi3 +___smulhi3: + + + + lda #0 +mult1: ldx <r4 + beq done + lsr <r4 + bcc mult2 + clc + adc <r5 + +mult2: asl <r5 + bra mult1 + +done: sta <r0 + rtl + + |