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mirror of https://github.com/hsoft/collapseos.git synced 2024-11-23 15:48:05 +11:00

zasm: add IX/IY support to SRL, RR and RL

This commit is contained in:
Virgil Dupras 2019-11-10 22:03:18 -05:00
parent 506c3d0a96
commit 5f6b303e75
4 changed files with 382 additions and 310 deletions

View File

@ -2,7 +2,7 @@
; Number of rows in the argspec table
.equ ARGSPEC_TBL_CNT 33
; Number of rows in the primary instructions table
.equ INSTR_TBL_CNT 144
.equ INSTR_TBL_CNT 147
; size in bytes of each row in the primary instructions table
.equ INSTR_TBL_ROWSIZE 6
; Instruction IDs They correspond to the index of the table in instrNames
@ -1081,7 +1081,7 @@ instrTBl:
.db I_AND, 0xb, 0, 0, 0b10100000 , 0 ; AND r
.db I_AND, 'n', 0, 0, 0xe6 , 0 ; AND n
.db I_BIT, 0xc, 'l', 0x53, 0xcb, 0b01000110 ; BIT b, (HL) + (IX/Y)
.db I_BIT, 'n', 0xb, 0x20 \ .dw handleBITR ; BIT b, r
.db I_BIT, 0xc, 0xb, 0x20 \ .dw handleBITR ; BIT b, r
.db I_CALL,0xa, 'N', 3, 0b11000100 , 0 ; CALL cc, NN
.db I_CALL,'N', 0, 0, 0xcd , 0 ; CALL NN
.db I_CCF, 0, 0, 0, 0x3f , 0 ; CCF
@ -1184,16 +1184,18 @@ instrTBl:
.db I_PUSH,'Y', 0, 0, 0xfd, 0xe5 ; PUSH IY
.db I_PUSH,0x1, 0, 4, 0b11000101 , 0 ; PUSH qq
.db I_RES, 0xc, 'l', 0x53, 0xcb, 0b10000110 ; RES b, (HL) + (IX/Y)
.db I_RES, 'n', 0xb, 0x20 \ .dw handleRESR ; RES b, r
.db I_RES, 0xc, 0xb, 0x20 \ .dw handleRESR ; RES b, r
.db I_RET, 0, 0, 0, 0xc9 , 0 ; RET
.db I_RET, 0xa, 0, 3, 0b11000000 , 0 ; RET cc
.db I_RETI,0, 0, 0, 0xed, 0x4d ; RETI
.db I_RETN,0, 0, 0, 0xed, 0x45 ; RETN
.db I_RL, 0xb, 0,0x40, 0xcb, 0b00010000 ; RL r
.db I_RL, 'l', 0,0x10, 0xcb, 0b00010110 ; RL (HL) + (IX/Y)
.db I_RLA, 0, 0, 0, 0x17 , 0 ; RLA
.db I_RLC, 0xb, 0,0x40, 0xcb, 0b00000000 ; RLC r
.db I_RLCA,0, 0, 0, 0x07 , 0 ; RLCA
.db I_RR, 0xb, 0,0x40, 0xcb, 0b00011000 ; RR r
.db I_RR, 'l', 0,0x10, 0xcb, 0b00011110 ; RR (HL) + (IX/Y)
.db I_RRA, 0, 0, 0, 0x1f , 0 ; RRA
.db I_RRC, 0xb, 0,0x40, 0xcb, 0b00001000 ; RRC r
.db I_RRCA,0, 0, 0, 0x0f , 0 ; RRCA
@ -1202,9 +1204,10 @@ instrTBl:
.db I_SBC,'h',0x3,0x44, 0xed, 0b01000010 ; SBC HL, ss
.db I_SCF, 0, 0, 0, 0x37 , 0 ; SCF
.db I_SET, 0xc, 'l', 0x53, 0xcb, 0b11000110 ; SET b, (HL) + (IX/Y)
.db I_SET, 'n', 0xb, 0x20 \ .dw handleSETR ; SET b, r
.db I_SET, 0xc, 0xb, 0x20 \ .dw handleSETR ; SET b, r
.db I_SLA, 0xb, 0,0x40, 0xcb, 0b00100000 ; SLA r
.db I_SRL, 0xb, 0,0x40, 0xcb, 0b00111000 ; SRL r
.db I_SRL, 'l', 0,0x10, 0xcb, 0b00111110 ; SRL (HL) + (IX/Y)
.db I_SUB, 'l', 0, 0, 0x96 , 0 ; SUB (HL)
.db I_SUB, 0xb, 0, 0, 0b10010000 , 0 ; SUB r
.db I_SUB, 'n', 0, 0, 0xd6 , 0 ; SUB n

View File

@ -19,6 +19,24 @@ ADC HL, DE
ADC HL, HL
ADC HL, SP
ADD A, (HL)
ADD A, (IX)
ADD A, (IX+1)
ADD A, (IX-1)
ADD A, (IX+10)
ADD A, (IX-10)
ADD A, (IX+100)
ADD A, (IX-100)
ADD A, (IX+127)
ADD A, (IX-127)
ADD A, (IY)
ADD A, (IY+1)
ADD A, (IY-1)
ADD A, (IY+10)
ADD A, (IY-10)
ADD A, (IY+100)
ADD A, (IY-100)
ADD A, (IY+127)
ADD A, (IY-127)
ADD A, B
ADD A, C
ADD A, D
@ -46,40 +64,7 @@ ADD IY, BC
ADD IY, DE
ADD IY, IY
ADD IY, SP
ADD A, (IX)
ADD A, (IX+1)
ADD A, (IX-1)
ADD A, (IX+10)
ADD A, (IX-10)
ADD A, (IX+100)
ADD A, (IX-100)
ADD A, (IX+127)
ADD A, (IX-127)
ADD A, (IY)
ADD A, (IY+1)
ADD A, (IY-1)
ADD A, (IY+10)
ADD A, (IY-10)
ADD A, (IY+100)
ADD A, (IY-100)
ADD A, (IY+127)
ADD A, (IY-127)
AND (HL)
AND B
AND C
AND D
AND E
AND H
AND L
AND A
AND 1
AND 2
AND 4
AND 8
AND 16
AND 32
AND 64
AND 128
AND (IX+1)
AND (IX-1)
AND (IX+10)
@ -96,84 +81,99 @@ AND (IY+100)
AND (IY-100)
AND (IY+127)
AND (IY-127)
BIT 1, (HL)
BIT 2, (HL)
BIT 4, (HL)
BIT 1, (IX)
BIT 1, (IX+1)
BIT 1, (IX-1)
BIT 1, (IX+10)
BIT 1, (IX-10)
BIT 1, (IX+100)
BIT 1, (IX-100)
BIT 1, (IX+127)
BIT 1, (IX-127)
BIT 2, (IX)
BIT 2, (IX+1)
BIT 2, (IX-1)
BIT 2, (IX+10)
BIT 2, (IX-10)
BIT 2, (IX+100)
BIT 2, (IX-100)
BIT 2, (IX+127)
BIT 2, (IX-127)
BIT 4, (IX)
BIT 4, (IX+1)
BIT 4, (IX-1)
BIT 4, (IX+10)
BIT 4, (IX-10)
BIT 4, (IX+100)
BIT 4, (IX-100)
BIT 4, (IX+127)
BIT 4, (IX-127)
BIT 1, (IY)
BIT 1, (IY+1)
BIT 1, (IY-1)
BIT 1, (IY+10)
BIT 1, (IY-10)
BIT 1, (IY+100)
BIT 1, (IY-100)
BIT 1, (IY+127)
BIT 1, (IY-127)
BIT 2, (IY)
BIT 2, (IY+1)
BIT 2, (IY-1)
BIT 2, (IY+10)
BIT 2, (IY-10)
BIT 2, (IY+100)
BIT 2, (IY-100)
BIT 2, (IY+127)
BIT 2, (IY-127)
BIT 4, (IY)
BIT 4, (IY+1)
BIT 4, (IY-1)
BIT 4, (IY+10)
BIT 4, (IY-10)
BIT 4, (IY+100)
BIT 4, (IY-100)
BIT 4, (IY+127)
BIT 4, (IY-127)
BIT 1, B
BIT 1, C
BIT 1, D
BIT 1, E
BIT 1, H
BIT 1, L
BIT 1, A
BIT 2, B
BIT 2, C
BIT 2, D
BIT 2, E
BIT 2, H
BIT 2, L
BIT 2, A
BIT 4, B
BIT 4, C
BIT 4, D
BIT 4, E
BIT 4, H
BIT 4, L
BIT 4, A
AND B
AND C
AND D
AND E
AND H
AND L
AND A
AND 1
AND 2
AND 4
AND 8
AND 16
AND 32
AND 64
AND 128
BIT 0, (HL)
BIT 0, (IX)
BIT 0, (IX+1)
BIT 0, (IX-1)
BIT 0, (IX+10)
BIT 0, (IX-10)
BIT 0, (IX+100)
BIT 0, (IX-100)
BIT 0, (IX+127)
BIT 0, (IX-127)
BIT 0, (IY)
BIT 0, (IY+1)
BIT 0, (IY-1)
BIT 0, (IY+10)
BIT 0, (IY-10)
BIT 0, (IY+100)
BIT 0, (IY-100)
BIT 0, (IY+127)
BIT 0, (IY-127)
BIT 3, (HL)
BIT 3, (IX)
BIT 3, (IX+1)
BIT 3, (IX-1)
BIT 3, (IX+10)
BIT 3, (IX-10)
BIT 3, (IX+100)
BIT 3, (IX-100)
BIT 3, (IX+127)
BIT 3, (IX-127)
BIT 3, (IY)
BIT 3, (IY+1)
BIT 3, (IY-1)
BIT 3, (IY+10)
BIT 3, (IY-10)
BIT 3, (IY+100)
BIT 3, (IY-100)
BIT 3, (IY+127)
BIT 3, (IY-127)
BIT 7, (HL)
BIT 7, (IX)
BIT 7, (IX+1)
BIT 7, (IX-1)
BIT 7, (IX+10)
BIT 7, (IX-10)
BIT 7, (IX+100)
BIT 7, (IX-100)
BIT 7, (IX+127)
BIT 7, (IX-127)
BIT 7, (IY)
BIT 7, (IY+1)
BIT 7, (IY-1)
BIT 7, (IY+10)
BIT 7, (IY-10)
BIT 7, (IY+100)
BIT 7, (IY-100)
BIT 7, (IY+127)
BIT 7, (IY-127)
BIT 0, B
BIT 0, C
BIT 0, D
BIT 0, E
BIT 0, H
BIT 0, L
BIT 0, A
BIT 3, B
BIT 3, C
BIT 3, D
BIT 3, E
BIT 3, H
BIT 3, L
BIT 3, A
BIT 7, B
BIT 7, C
BIT 7, D
BIT 7, E
BIT 7, H
BIT 7, L
BIT 7, A
CALL Z, 1
CALL Z, 2
CALL Z, 4
@ -320,21 +320,6 @@ CALL 16384
CALL 32768
CCF
CP (HL)
CP B
CP C
CP D
CP E
CP H
CP L
CP A
CP 1
CP 2
CP 4
CP 8
CP 16
CP 32
CP 64
CP 128
CP (IX)
CP (IX+1)
CP (IX-1)
@ -353,6 +338,21 @@ CP (IY+100)
CP (IY-100)
CP (IY+127)
CP (IY-127)
CP B
CP C
CP D
CP E
CP H
CP L
CP A
CP 1
CP 2
CP 4
CP 8
CP 16
CP 32
CP 64
CP 128
CPD
CPDR
CPI
@ -360,7 +360,6 @@ CPIR
CPL
DAA
DEC (HL)
DEC IX
DEC (IX)
DEC (IX+1)
DEC (IX-1)
@ -370,7 +369,6 @@ DEC (IX+100)
DEC (IX-100)
DEC (IX+127)
DEC (IX-127)
DEC IY
DEC (IY)
DEC (IY+1)
DEC (IY-1)
@ -380,6 +378,8 @@ DEC (IY+100)
DEC (IY-100)
DEC (IY+127)
DEC (IY-127)
DEC IX
DEC IY
DEC B
DEC C
DEC D
@ -433,7 +433,6 @@ IN H, (C)
IN L, (C)
IN A, (C)
INC (HL)
INC IX
INC (IX)
INC (IX+1)
INC (IX-1)
@ -443,7 +442,6 @@ INC (IX+100)
INC (IX-100)
INC (IX+127)
INC (IX-127)
INC IY
INC (IY)
INC (IY+1)
INC (IY-1)
@ -453,6 +451,8 @@ INC (IY+100)
INC (IY-100)
INC (IY+127)
INC (IY-127)
INC IX
INC IY
INC B
INC C
INC D
@ -468,6 +468,8 @@ IND
INDR
INI
INIR
JP (IX)
JP (IY)
JP (HL)
JP Z, 1
JP Z, 2
@ -613,8 +615,6 @@ JP 4096
JP 8192
JP 16384
JP 32768
JP (IX)
JP (IY)
JR $+1
JR $+2
JR $+4
@ -1576,21 +1576,6 @@ LDIR
NEG
NOP
OR (HL)
OR B
OR C
OR D
OR E
OR H
OR L
OR A
OR 1
OR 2
OR 4
OR 8
OR 16
OR 32
OR 64
OR 128
OR (IX)
OR (IX+1)
OR (IX-1)
@ -1609,6 +1594,21 @@ OR (IY+100)
OR (IY-100)
OR (IY+127)
OR (IY-127)
OR B
OR C
OR D
OR E
OR H
OR L
OR A
OR 1
OR 2
OR 4
OR 8
OR 16
OR 32
OR 64
OR 128
OTDR
OTIR
OUT (1), A
@ -1638,84 +1638,84 @@ PUSH BC
PUSH DE
PUSH HL
PUSH AF
RES 1, (HL)
RES 2, (HL)
RES 4, (HL)
RES 1, (IX)
RES 1, (IX+1)
RES 1, (IX-1)
RES 1, (IX+10)
RES 1, (IX-10)
RES 1, (IX+100)
RES 1, (IX-100)
RES 1, (IX+127)
RES 1, (IX-127)
RES 2, (IX)
RES 2, (IX+1)
RES 2, (IX-1)
RES 2, (IX+10)
RES 2, (IX-10)
RES 2, (IX+100)
RES 2, (IX-100)
RES 2, (IX+127)
RES 2, (IX-127)
RES 4, (IX)
RES 4, (IX+1)
RES 4, (IX-1)
RES 4, (IX+10)
RES 4, (IX-10)
RES 4, (IX+100)
RES 4, (IX-100)
RES 4, (IX+127)
RES 4, (IX-127)
RES 1, (IY)
RES 1, (IY+1)
RES 1, (IY-1)
RES 1, (IY+10)
RES 1, (IY-10)
RES 1, (IY+100)
RES 1, (IY-100)
RES 1, (IY+127)
RES 1, (IY-127)
RES 2, (IY)
RES 2, (IY+1)
RES 2, (IY-1)
RES 2, (IY+10)
RES 2, (IY-10)
RES 2, (IY+100)
RES 2, (IY-100)
RES 2, (IY+127)
RES 2, (IY-127)
RES 4, (IY)
RES 4, (IY+1)
RES 4, (IY-1)
RES 4, (IY+10)
RES 4, (IY-10)
RES 4, (IY+100)
RES 4, (IY-100)
RES 4, (IY+127)
RES 4, (IY-127)
RES 1, B
RES 1, C
RES 1, D
RES 1, E
RES 1, H
RES 1, L
RES 1, A
RES 2, B
RES 2, C
RES 2, D
RES 2, E
RES 2, H
RES 2, L
RES 2, A
RES 4, B
RES 4, C
RES 4, D
RES 4, E
RES 4, H
RES 4, L
RES 4, A
RES 0, (HL)
RES 0, (IX)
RES 0, (IX+1)
RES 0, (IX-1)
RES 0, (IX+10)
RES 0, (IX-10)
RES 0, (IX+100)
RES 0, (IX-100)
RES 0, (IX+127)
RES 0, (IX-127)
RES 0, (IY)
RES 0, (IY+1)
RES 0, (IY-1)
RES 0, (IY+10)
RES 0, (IY-10)
RES 0, (IY+100)
RES 0, (IY-100)
RES 0, (IY+127)
RES 0, (IY-127)
RES 3, (HL)
RES 3, (IX)
RES 3, (IX+1)
RES 3, (IX-1)
RES 3, (IX+10)
RES 3, (IX-10)
RES 3, (IX+100)
RES 3, (IX-100)
RES 3, (IX+127)
RES 3, (IX-127)
RES 3, (IY)
RES 3, (IY+1)
RES 3, (IY-1)
RES 3, (IY+10)
RES 3, (IY-10)
RES 3, (IY+100)
RES 3, (IY-100)
RES 3, (IY+127)
RES 3, (IY-127)
RES 7, (HL)
RES 7, (IX)
RES 7, (IX+1)
RES 7, (IX-1)
RES 7, (IX+10)
RES 7, (IX-10)
RES 7, (IX+100)
RES 7, (IX-100)
RES 7, (IX+127)
RES 7, (IX-127)
RES 7, (IY)
RES 7, (IY+1)
RES 7, (IY-1)
RES 7, (IY+10)
RES 7, (IY-10)
RES 7, (IY+100)
RES 7, (IY-100)
RES 7, (IY+127)
RES 7, (IY-127)
RES 0, B
RES 0, C
RES 0, D
RES 0, E
RES 0, H
RES 0, L
RES 0, A
RES 3, B
RES 3, C
RES 3, D
RES 3, E
RES 3, H
RES 3, L
RES 3, A
RES 7, B
RES 7, C
RES 7, D
RES 7, E
RES 7, H
RES 7, L
RES 7, A
RET
RET Z
RET NZ
@ -1734,6 +1734,25 @@ RL E
RL H
RL L
RL A
RL (HL)
RL (IX)
RL (IX+1)
RL (IX-1)
RL (IX+10)
RL (IX-10)
RL (IX+100)
RL (IX-100)
RL (IX+127)
RL (IX-127)
RL (IY)
RL (IY+1)
RL (IY-1)
RL (IY+10)
RL (IY-10)
RL (IY+100)
RL (IY-100)
RL (IY+127)
RL (IY-127)
RLA
RLC B
RLC C
@ -1750,6 +1769,25 @@ RR E
RR H
RR L
RR A
RR (HL)
RR (IX)
RR (IX+1)
RR (IX-1)
RR (IX+10)
RR (IX-10)
RR (IX+100)
RR (IX-100)
RR (IX+127)
RR (IX-127)
RR (IY)
RR (IY+1)
RR (IY-1)
RR (IY+10)
RR (IY-10)
RR (IY+100)
RR (IY-100)
RR (IY+127)
RR (IY-127)
RRA
RRC B
RRC C
@ -1772,84 +1810,84 @@ SBC HL, DE
SBC HL, HL
SBC HL, SP
SCF
SET 1, (HL)
SET 2, (HL)
SET 4, (HL)
SET 1, (IX)
SET 1, (IX+1)
SET 1, (IX-1)
SET 1, (IX+10)
SET 1, (IX-10)
SET 1, (IX+100)
SET 1, (IX-100)
SET 1, (IX+127)
SET 1, (IX-127)
SET 2, (IX)
SET 2, (IX+1)
SET 2, (IX-1)
SET 2, (IX+10)
SET 2, (IX-10)
SET 2, (IX+100)
SET 2, (IX-100)
SET 2, (IX+127)
SET 2, (IX-127)
SET 4, (IX)
SET 4, (IX+1)
SET 4, (IX-1)
SET 4, (IX+10)
SET 4, (IX-10)
SET 4, (IX+100)
SET 4, (IX-100)
SET 4, (IX+127)
SET 4, (IX-127)
SET 1, (IY)
SET 1, (IY+1)
SET 1, (IY-1)
SET 1, (IY+10)
SET 1, (IY-10)
SET 1, (IY+100)
SET 1, (IY-100)
SET 1, (IY+127)
SET 1, (IY-127)
SET 2, (IY)
SET 2, (IY+1)
SET 2, (IY-1)
SET 2, (IY+10)
SET 2, (IY-10)
SET 2, (IY+100)
SET 2, (IY-100)
SET 2, (IY+127)
SET 2, (IY-127)
SET 4, (IY)
SET 4, (IY+1)
SET 4, (IY-1)
SET 4, (IY+10)
SET 4, (IY-10)
SET 4, (IY+100)
SET 4, (IY-100)
SET 4, (IY+127)
SET 4, (IY-127)
SET 1, B
SET 1, C
SET 1, D
SET 1, E
SET 1, H
SET 1, L
SET 1, A
SET 2, B
SET 2, C
SET 2, D
SET 2, E
SET 2, H
SET 2, L
SET 2, A
SET 4, B
SET 4, C
SET 4, D
SET 4, E
SET 4, H
SET 4, L
SET 4, A
SET 0, (HL)
SET 0, (IX)
SET 0, (IX+1)
SET 0, (IX-1)
SET 0, (IX+10)
SET 0, (IX-10)
SET 0, (IX+100)
SET 0, (IX-100)
SET 0, (IX+127)
SET 0, (IX-127)
SET 0, (IY)
SET 0, (IY+1)
SET 0, (IY-1)
SET 0, (IY+10)
SET 0, (IY-10)
SET 0, (IY+100)
SET 0, (IY-100)
SET 0, (IY+127)
SET 0, (IY-127)
SET 3, (HL)
SET 3, (IX)
SET 3, (IX+1)
SET 3, (IX-1)
SET 3, (IX+10)
SET 3, (IX-10)
SET 3, (IX+100)
SET 3, (IX-100)
SET 3, (IX+127)
SET 3, (IX-127)
SET 3, (IY)
SET 3, (IY+1)
SET 3, (IY-1)
SET 3, (IY+10)
SET 3, (IY-10)
SET 3, (IY+100)
SET 3, (IY-100)
SET 3, (IY+127)
SET 3, (IY-127)
SET 7, (HL)
SET 7, (IX)
SET 7, (IX+1)
SET 7, (IX-1)
SET 7, (IX+10)
SET 7, (IX-10)
SET 7, (IX+100)
SET 7, (IX-100)
SET 7, (IX+127)
SET 7, (IX-127)
SET 7, (IY)
SET 7, (IY+1)
SET 7, (IY-1)
SET 7, (IY+10)
SET 7, (IY-10)
SET 7, (IY+100)
SET 7, (IY-100)
SET 7, (IY+127)
SET 7, (IY-127)
SET 0, B
SET 0, C
SET 0, D
SET 0, E
SET 0, H
SET 0, L
SET 0, A
SET 3, B
SET 3, C
SET 3, D
SET 3, E
SET 3, H
SET 3, L
SET 3, A
SET 7, B
SET 7, C
SET 7, D
SET 7, E
SET 7, H
SET 7, L
SET 7, A
SLA B
SLA C
SLA D
@ -1864,6 +1902,25 @@ SRL E
SRL H
SRL L
SRL A
SRL (HL)
SRL (IX)
SRL (IX+1)
SRL (IX-1)
SRL (IX+10)
SRL (IX-10)
SRL (IX+100)
SRL (IX-100)
SRL (IX+127)
SRL (IX-127)
SRL (IY)
SRL (IY+1)
SRL (IY-1)
SRL (IY+10)
SRL (IY-10)
SRL (IY+100)
SRL (IY-100)
SRL (IY+127)
SRL (IY-127)
SUB (HL)
SUB B
SUB C

View File

@ -56,6 +56,12 @@ argGrpTbl = {
chr(0x0b): "BCDEHLA",
}
# whenever we encounter the "(HL)" version of these instructions, spit IX/IY
# too.
instrsWithIXY = {
'ADD', 'AND', 'BIT', 'CP', 'DEC', 'INC', 'OR', 'RES', 'RL', 'RR', 'SET',
'SRL'}
def cleanupLine(line):
line = line.strip()
idx = line.rfind(';')
@ -107,6 +113,8 @@ def genargs(argspec):
return result
if argspec in argspecTbl:
return [argspecTbl[argspec]]
if argspec == chr(0xc): # special BIT "b" group
return ['0', '3', '7']
grp = argGrpTbl[argspec]
return [argspecTbl[a] for a in grp]
@ -131,13 +139,14 @@ def main():
a2 = eval(row[2])
args1 = genargs(a1)
# special case handling
if n in instrsWithIXY and a1 == 'l':
args1 += genargs('x')
args1 += genargs('y')
if n == 'JP' and isinstance(a1, str) and a1 in 'xy':
# we don't test the displacements for IX/IY because there can't be
# any.
args1 = args1[:1]
if n in {'BIT', 'SET', 'RES'}:
# we only want to keep 1, 2, 4
args1 = args1[:3]
if n in {'JR', 'DJNZ'} and a1 == 'n':
args1 = eargs(args1)
if n == 'IM':
@ -145,6 +154,9 @@ def main():
if args1:
for arg1 in args1:
args2 = genargs(a2)
if n in instrsWithIXY and a2 == 'l':
args2 += genargs('x')
args2 += genargs('y')
if args2:
if n in {'JR', 'DJNZ'} and a2 == 'n':
args2 = eargs(args2)