as: SH Opcodes
9.42.5 Opcodes
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For detailed information on the SH machine instruction set, see
'SH-Microcomputer User's Manual' (Renesas) or 'SH-4 32-bit CPU Core
Architecture' (SuperH) and 'SuperH (SH) 64-Bit RISC Series' (SuperH).
'as' implements all the standard SH opcodes. No additional
pseudo-instructions are needed on this family. Note, however, that
because 'as' supports a simpler form of PC-relative addressing, you may
simply write (for example)
mov.l bar,r0
where other assemblers might require an explicit displacement to 'bar'
from the program counter:
mov.l @(DISP, PC)
Here is a summary of SH opcodes:
Legend:
Rn a numbered register
Rm another numbered register
#imm immediate data
disp displacement
disp8 8-bit displacement
disp12 12-bit displacement
add #imm,Rn lds.l @Rn+,PR
add Rm,Rn mac.w @Rm+,@Rn+
addc Rm,Rn mov #imm,Rn
addv Rm,Rn mov Rm,Rn
and #imm,R0 mov.b Rm,@(R0,Rn)
and Rm,Rn mov.b Rm,@-Rn
and.b #imm,@(R0,GBR) mov.b Rm,@Rn
bf disp8 mov.b @(disp,Rm),R0
bra disp12 mov.b @(disp,GBR),R0
bsr disp12 mov.b @(R0,Rm),Rn
bt disp8 mov.b @Rm+,Rn
clrmac mov.b @Rm,Rn
clrt mov.b R0,@(disp,Rm)
cmp/eq #imm,R0 mov.b R0,@(disp,GBR)
cmp/eq Rm,Rn mov.l Rm,@(disp,Rn)
cmp/ge Rm,Rn mov.l Rm,@(R0,Rn)
cmp/gt Rm,Rn mov.l Rm,@-Rn
cmp/hi Rm,Rn mov.l Rm,@Rn
cmp/hs Rm,Rn mov.l @(disp,Rn),Rm
cmp/pl Rn mov.l @(disp,GBR),R0
cmp/pz Rn mov.l @(disp,PC),Rn
cmp/str Rm,Rn mov.l @(R0,Rm),Rn
div0s Rm,Rn mov.l @Rm+,Rn
div0u mov.l @Rm,Rn
div1 Rm,Rn mov.l R0,@(disp,GBR)
exts.b Rm,Rn mov.w Rm,@(R0,Rn)
exts.w Rm,Rn mov.w Rm,@-Rn
extu.b Rm,Rn mov.w Rm,@Rn
extu.w Rm,Rn mov.w @(disp,Rm),R0
jmp @Rn mov.w @(disp,GBR),R0
jsr @Rn mov.w @(disp,PC),Rn
ldc Rn,GBR mov.w @(R0,Rm),Rn
ldc Rn,SR mov.w @Rm+,Rn
ldc Rn,VBR mov.w @Rm,Rn
ldc.l @Rn+,GBR mov.w R0,@(disp,Rm)
ldc.l @Rn+,SR mov.w R0,@(disp,GBR)
ldc.l @Rn+,VBR mova @(disp,PC),R0
lds Rn,MACH movt Rn
lds Rn,MACL muls Rm,Rn
lds Rn,PR mulu Rm,Rn
lds.l @Rn+,MACH neg Rm,Rn
lds.l @Rn+,MACL negc Rm,Rn
nop stc VBR,Rn
not Rm,Rn stc.l GBR,@-Rn
or #imm,R0 stc.l SR,@-Rn
or Rm,Rn stc.l VBR,@-Rn
or.b #imm,@(R0,GBR) sts MACH,Rn
rotcl Rn sts MACL,Rn
rotcr Rn sts PR,Rn
rotl Rn sts.l MACH,@-Rn
rotr Rn sts.l MACL,@-Rn
rte sts.l PR,@-Rn
rts sub Rm,Rn
sett subc Rm,Rn
shal Rn subv Rm,Rn
shar Rn swap.b Rm,Rn
shll Rn swap.w Rm,Rn
shll16 Rn tas.b @Rn
shll2 Rn trapa #imm
shll8 Rn tst #imm,R0
shlr Rn tst Rm,Rn
shlr16 Rn tst.b #imm,@(R0,GBR)
shlr2 Rn xor #imm,R0
shlr8 Rn xor Rm,Rn
sleep xor.b #imm,@(R0,GBR)
stc GBR,Rn xtrct Rm,Rn
stc SR,Rn
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