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Fixes for PowerPC #7931

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merged 4 commits into from
Sep 10, 2024
Merged

Fixes for PowerPC #7931

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765e5d1
types.h: add powerpc macros
barracuda156 Aug 31, 2024
b6bfae9
asm.c: fix ppc asm for macOS
barracuda156 Sep 1, 2024
ef24243
sp_int.c: fix ppc asm for macOS
barracuda156 Sep 1, 2024
94478cb
wc_port.h: fix macros for powerpc
barracuda156 Aug 31, 2024
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50 changes: 50 additions & 0 deletions wolfcrypt/src/asm.c
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Original file line number Diff line number Diff line change
Expand Up @@ -529,6 +529,27 @@ __asm__( \
#define LOOP_START \
mu = c[x] * mp

#ifdef __APPLE__

#define INNERMUL \
__asm__( \
" mullw r16,%3,%4 \n\t" \
" mulhwu r17,%3,%4 \n\t" \
" addc r16,r16,%2 \n\t" \
" addze r17,r17 \n\t" \
" addc %1,r16,%5 \n\t" \
" addze %0,r17 \n\t" \
:"=r"(cy),"=r"(_c[0]):"0"(cy),"r"(mu),"r"(tmpm[0]),"1"(_c[0]):"r16", "r17", "cc"); ++tmpm;

#define PROPCARRY \
__asm__( \
" addc %1,%3,%2 \n\t" \
" xor %0,%2,%2 \n\t" \
" addze %0,%2 \n\t" \
:"=r"(cy),"=r"(_c[0]):"0"(cy),"1"(_c[0]):"cc");

#else

#define INNERMUL \
__asm__( \
" mullw 16,%3,%4 \n\t" \
Expand All @@ -546,6 +567,8 @@ __asm__( \
" addze %0,%2 \n\t" \
:"=r"(cy),"=r"(_c[0]):"0"(cy),"1"(_c[0]):"cc");

#endif

#elif defined(TFM_PPC64)

/* PPC64 */
Expand All @@ -555,6 +578,8 @@ __asm__( \
#define LOOP_START \
mu = c[x] * mp

#ifdef __APPLE__

#define INNERMUL \
__asm__( \
" mulld r16,%3,%4 \n\t" \
Expand All @@ -576,6 +601,31 @@ __asm__( \
" addze %0,%0 \n\t" \
:"=r"(cy),"=m"(_c[0]):"0"(cy),"1"(_c[0]):"r16","cc");

#else

#define INNERMUL \
__asm__( \
" mulld 16,%3,%4 \n\t" \
" mulhdu 17,%3,%4 \n\t" \
" addc 16,16,%0 \n\t" \
" addze 17,17 \n\t" \
" ldx 18,0,%1 \n\t" \
" addc 16,16,18 \n\t" \
" addze %0,17 \n\t" \
" sdx 16,0,%1 \n\t" \
:"=r"(cy),"=m"(_c[0]):"0"(cy),"r"(mu),"r"(tmpm[0]),"1"(_c[0]):"16", "17", "18","cc"); ++tmpm;

#define PROPCARRY \
__asm__( \
" ldx 16,0,%1 \n\t" \
" addc 16,16,%0 \n\t" \
" sdx 16,0,%1 \n\t" \
" xor %0,%0,%0 \n\t" \
" addze %0,%0 \n\t" \
:"=r"(cy),"=m"(_c[0]):"0"(cy),"1"(_c[0]):"16","cc");

#endif

/******************************************************************/

#elif defined(TFM_AVR32)
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